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Service Manual - Frank`s Hospital Workshop

1. eoepeju YouMS jospes 1 Jeoeg eospeju Jop4o2oH pee er ed 194209 eqni 9 pieog uonoeljeg 149 90A 149 Figure H 1 sr eoepelui o41u07 eoenelu jeuuojsueJ Bn punoic Jog SUIN OA SHO yor w t INO HOA Jeued ay eur ov Interconnect Block Diagram A 2 Appendix A Connector Pin Assignments Control Board Connectors Control Board Connectors Refer to Figure H 1 for the control board connector locations Connectors on the control board are listed in Table H 1 Table H 1 Control Board Connections 20 Via Cable Assembly Connects To Reference J1 M1722 61605 Pacer keypanel board Table H 2 J2 1722 61611 Front end board Table H 3 J3 M1722 61624 ECG Out connector Table H 4 J4 M1722 61910 ORS volume contro
2. M1722 24 Removing the ECG Front End Board A B C 5 Retaining screws Plastic standoff Cables and connectors Disconnect the 7 conductor cable assembly that runs between the ECG input connector and the flat 7 pin connector on the front end board Using a Torx T 10 screwdriver remove the QRS beeper volume control potentiometer This is located on the front of the chassis Squeeze the plastic ears to remove the ECG input connector from the front of the instrument The connector and cable will pull out to the front of the machine Using a pair of pliers remove the ECG output connector This is located on the front of the chassis Using a 5 16 nut driver remove the plastic standoff that supports the control board Using a Torx T 10 screwdriver remove the five screws that secure the front end board to the chassis You can now remove the front end board To install the front end board perform the procedure Removing the ECG Front End Board in reverse Make sure that the correct wires are connected to the proper connec tor Check wire colors using Figure 5 13 and Figure 5 14 WARNING Removal and Replacement Removing the High Voltage Charger and Relay Assembly Removing the High Voltage Charger and Relay Assembly This procedure includes removing the patient relay and the high voltage charger board The high voltage charger and relay assembly consists of the
3. RECORDER DELAY 6 S DELAY RECORDER BW MONITOR ADVISORY ENERGY 200 200 360 RECORD ON MARK ON RECORD ON CHARGE ON RECORD ON SHOCK ON RECORD ON ALARMS ON POST SHOCK DATA ON POWER ON LEAD PADDLES PATIENT CABLE 3 WIRE NOTCH FILTER 60 HZ ON ECG TRACE SWEEP S P Configuration Default Settings Setup Menu 2 Not shown for CodeMaster XL without Option A01 Note that for the Codemaster XL without Option 01 RECORD ON MARK is fixed ON POST SHOCK DATA is fixed OFF and only the 3 wire paddle set is supported To return to the main setup diagnostic menu press both arrows on the ECG SizeA key simultaneously To exit the menus turn the Energy Select control to the Off Standby position 2 21 WARNING Table 2 4 Setup and Configuration Configuration Changing Configuration Settings To change a configuration setting or to change the current date use the process described next The setting values of some configuration settings can have critical impact on how your defibrillator operates Because of this it is recommended that the biomedical department standardize on a configuration for all defibrillators at the same facility If the defibrillator loses your configuration settings it will display the message SETUP LOST on the screen and use the factory settings for all setup values To clear the SETUP LOST message display
4. Top Case Inside Top Case Inside Parts List iid Description Part No 1 Resistor assembly patient load M1722 60010 2 Screw M3 x 10 qty 2 0515 0374 3 Screw M3 x 4 qty 2 0515 0663 4 Cable clamp qty 3 1400 1568 6 8 Parts Lists Calling for Assistance Figure 6 3 1722 49A Bottom Case 6 9 Figure 6 4 Table 6 3 Parts Lists Calling for Assistance Bottom Case Bottom Case Parts List 1722 49B Ref No Description Part No 1 Control M1722A B M1723A B M1722 60103 la Battery lithium 3V 1 2AH 1420 0341 1b Screw M3 x 10 qty 8 0515 0374 1c Press fit standoffs M1722 27302 Table 6 3 Bottom Case Parts List Parts Lists Calling for Assistance Description Part No 2 Standoff insulated qty 5 M1722 47277 3 CRT Assembly M1722A B M1723A B M1722 67210 3a Screw M4 x 18 0515 0436 3b Screw M4 x 10 0515 0380 3c Washer qty 4 2190 0419 See Table 6 7 4 Power Supply assembly M1722 69530 4a Screw M4 x 10 qty 2 0515 0380 4b Fuse 4A 250V Fast 2110 0055 4c Power supply cable M1722 61606 5 Pacer PCA M1722A B M1722 60170 Cable Pacer Control M1722 61617 6 Case bottom white M1722A M1723A M1722 69561 Requires case label set see Table 6 1 Includes feet battery compartment pad receptacle pads two plugs and Sp0
5. Defibrillator Test Screen Gl AVAILABLI Current charge in joules 0 when the defibrillator is not ENERGY armed SEC TO CHARGE After the defibrillator charges to the energy level selected the entry shows how many milliseconds the charge required SEC TO DISARM After the defibrillator signals Charge Done it holds the charge for 60 seconds and then starts disarming the charge through an internal safety relay The entry shows the time required to disarm the defibrillator to the safe pJ state DELIVERED The calculated delivered energy in joules based on the ENERGY internal peak current measurement IMPEDANCE The calculated load impedance based on available energy and the internal peak current measurement in Amps PEAK CURRENT The peak current measured during defibrillator dis charge DEFIB ERRORS Defibrillator errors that have occurred while in diagnostic test mode 3 12 WARNING NOTE Performance Verification and Maintenance Performance Verification CAPACITANCE The capacitance used when charging the defibrillator The capacitance value is established during Defibrillator Calibration See Defibrillator Test on page 3 11 for information SHOCK The number shown is the number of shocks since the COUNTER shock counter was reset You can clear the shock counter by pressing the Sync and HR Alarm keys simul
6. Intensity FBVIDEO Video Grid 2 Amplifier HBVIDEO Focus yy Video 5 GND y 12CRT Horizontal Deflection 7 5kV Anode Voltage CRT Assembly Block Diagram Signals entering the CRT deflection board from the control board are GND VSYNC VIDEO CRT12V and HSYNC 7 20 Theory of Operation CRT Deflection Board The CRT displays information using a raster pattern Total usable raster area is 832 dots horizontal 256 dots vertical Table 7 3 lists the specifications for the CRT Table 7 3 CRT Specifications Characteristic Specification Screen Size 140 mm Diagonal Deflection Method Magnetic Deflection Angles Diagonal 70 degrees Horizontal 66 degrees Vertical 45 degrees Phosphor P43 Yellow Green Heater 75 mA 12 V typical Control signals to drive the CRT come from the CRT Recorder gate array on the control board Table 7 4 lists the control signal specifications Table 7 4 Control Signal Specifications Vertical Deflection Frequency 57 1 Hz Period 17 5 ms Blanking Time 1 5 ms Vertical Sync 750 us Active High Horizontal Deflection Frequency 16 0 kHz Period 62 5 us Blanking Time 11 7 us Horizontal Sync 11 7 us Active Low Video Dot Time 61 ns Active Lo
7. Noisy ECG amplifier Test with ECG simulator Use diag nostic test ECG Tests on page 3 14 Replace front end board Noisy trace on paddles paddles in pockets Bad paddle contact 1 Clean paddles and paddle contacts 2 Replace ECG front end pacer board 3 Replace internal test load resistor Failed synchronized cardiover sion with internal monitor test Replace control board Power Supply and Battery Symptom AC POWER indicator is not lit Cause No AC power Corrective Action Check power cord AC fuses on power supply board and connectors AC on indication failed 1 Replace power supply 2 Replace control board Power supply failed Replace power supply BATT CHRG indicator is not lit CAC POWER indi cator is lit Battery is not installed Install the battery check the connec tor Battery sense circuit failed 1 Replace high voltage board 2 Replace control board Defibrillator will not power up on AC or battery power Power supply defective Replace power supply Control board defective Replace control board 4 15 Troubleshooting Troubleshooting Tables Table 4 9 NOTE Table 4 10 4 16 Power Supply and Battery Symptom Defibrillator will operate on AC but not battery power Cause Battery fuse is blown Corrective Action Replace battery fuse on battery con nector board
8. CodeMaster XL M1722B Defibrillator Monitor Service Manual oca Printed in USA HP Part Number M1722 91909 Print Date May 16 2000 Edition 6 Notice About This Edition Publication number M1722 91909 Edition 6 Printed in USA Edition History Edition 1 August 1992 Edition 2 October 1992 Edition 3 February 1993 Edition 4 November 1994 Edition 5 August 1996 Edition 6 May 16 2000 Copyright Copyright 1992 1993 1994 1996 1998 Hewlett Packard Company Andover MA 01810 USA Authorized EU representative Hewlett Packard GmbH Deutschland GmbH Herrenbergerstr 130 D 71034 Boeblingen Germany Fax 49 703 1 14 2346 This information is subject to change without notice Reproduction adaptation or translation without prior written permission is prohibited except as allowed under the copyright laws Medical Device Directive This product complies with the requirements of the Medical Device Directive 93 42 EEC and carries the CE mark accordingly This product complies with the requirements of the EMC Directive 89 336 EEC and carries the CE mark accordingly Warranty Hewlett Packard makes no warranty of any kind with regard to this material included but not limited to the implied warranties or merchantability and fitness for a particular purpose Hewlett Packard shall not be liable for errors contained herein or for incidental or consequential damages in connection with the furni
9. ER message appears on the monitor ECK Keypanel Boards The main keypanel board and the pacer keypanel board contain the push button switches and LED indicators that provide the hardware user interface The Energy Select switch connects to the main keypanel board 7 29 Theory of Operation Defibrillator Pacer Patient Connections Defibrillator Pacer Patient Connections The defibrillator provides support for the following methods of delivering defibrillation or pacing energies to the patient Standard External Paddles Internal Paddles External Adhesive Pads Standard External Paddles The Standard External Paddle Set combines Adult and Pediatric defibrillation electrode surfaces in one paddle design The Sternum paddle has a Paddle Contact Indicator PCI standard on the XL optional on the XL and a Shock button The Apex paddle has the CHARGE INITIATION button a CHARGE DONE LED and a Shock button The defibrillator determines paddle type by measuring the voltage on the CHDONE control line The voltage range for a valid External Paddle Set is 0 5 3 0 volts The Shock switches pull their respective lines nDischarge Sternum nDischarge Apex to logic ground when pressed Single fault tolerance is maintained throughout the discharge control path for operator safety The Charge switch pulls the nCharge line low when pressed Internal Paddles The Internal Paddles are connected to the defibrillator usin
10. Patient Cable 3 Wire or 5 Wire Sets the defibrillator to treat the input as if either a 3 wire or 5 wire patient cable is attached to the ECG Input connector Notch Filter 50 Hz or 60 Hz On or Off Selects power line filter frequency and turns filter on or off ECG Trace Sweep or Scroll Selects the ECG trace style SWEEP updates the displayed patient data from left to right and then repeats the update For SCROLL the dis played patient data moves from the right to left sides of the display On the CodeMaster XL these menu items cannot be changed it uses the factory default settings See Figure 2 13 and Figure 2 14 for factory default setting information 2 24 NOTE NOTE Setup and Configuration Configuration Shock Advisory Algorithm Measurement Matrix Print optional The Advisory Event Summary AES includes a configurable option to print the algorithm measurement matrix after each algorithm decision event This matrix contains the measurements that the algorithm computed during the associated analysis period and on which the algorithm decision is based This measurement can be used by a factory service representative to understand how the algorithm decision was made If you have a question about the algorithm decision for a particular rhythm strip the measurement matrix printout can be enabled and the AES reprinted with the measurement matrix information provided the AES memory has not been e
11. Delivered mA is 100mA 10 Performance Verification and Maintenance Test Results Matrix Table 3 1 Performance Verification CodeMaster XL M1722B Data to Record Test Block Test or Inspection to Expected Passing NEETSU IPIE x P pass or F Name Perform Test Results fail Parameter Conduct the following tests F x Function Tests F SpO2 Test SpO2 option is Gf option is installed functional example F p HR Alarm Test HR alarm sounds at alarm setting ECG Simulation Test leadwires integrity verified gain settings accurate Synch Cardioversion Test set unit to sync mode check if defibrillator fires on sync Safety Tests S Check S aaa bbb ccc dd ee ff Chassis to Ground 0 1 ohm Resistance aaa example Groundwire Leakage e lt 500 uA S 09 400 90 7 7 16 Current bbb e Enclosure Leakage lt 100 uA Current ccc Patient Lead Leakage Current o To Ground dd e lt 10uA o Between patient leads ee 10uA o With line voltage applied ff lt 20uA 8 09 400 90 7 7 16 Note When recording test results separate tests by a semi colon For example V p C p DT 1300 100 50 30 3600 360 50 55 p E p 0 1 60 A p PT 40 99 F p NOTE Performance Verification and Maintenance Setup Diagnostic Menu Tests Setup Diagnostic Menu Tests The setup diagnostic menu tests provide an easy method to check most areas of defibrill
12. side of the patient transfer relay and to the pacer terminal if the pacer is installed Table H 21 Table H 22 Appendix A Connector Pin Assignments Keypanel Board Keypanel Board These tables list the pin assignments for the connectors on the keypanel board The connectors and the assemblies they connect to are listed in Table H 21 Table H 22 lists connector pin assignments for J1 Keypanel Board Connections Keypanel Board Connector Via Cable Assembly Connects To Reference A1 plo M1722 60195 Control board J6 Table H 7 J2 M1722 61900 Energy Select switch Table H 22 J3 M1722 61652 Sp0 board P2 Table H 23 Keypanel Board J2 to Energy Select Switch Pin Signal 1 NIC 2 ENSEL 3 3 GND 4 ENSEL 2 5 nON 6 ENSEL 1 7 ENSEL 0 8 NIC Signal Definition ENSEL 0 1 ENergy SELect Four key bits set by the Energy Select control which 2 3 selects the charge level or the monitor on position nON Asserted low on all switch positions except the standby position Turns the instrument on A 27 Table H 23 Table H 24 Appendix A Connector Pin Assignments Pacer Keypanel Board Keypanel Board J3 to Sp0 Board P2 Pin Signal 1 nONOFFKEY 2 nALRMKEY Signal Definition nONOFFKEY 5 On Off key nALRMKEY SpO Alarm key Pacer Keypanel Board The pacer keypanel board J1 connects to the control board J1 See Table H 2 for pin assignments
13. Battery voltage is too low 1 Plug defibrillator into AC power to charge battery 2 Perform battery capacity check 3 Replace battery if the test fails Battery voltage is less than 11 4 volts Battery needs charge 1 Plug defibrillator into AC power to charge battery 2 Perform battery capacity check 3 Replace battery if the test fails Battery will not accept charge Battery is defective Replace battery Battery charger failed Replace power supply The diagnostic screen TEST BATTERY will provide the following information NO BATTERY DISCONNECT AC POWER Recorder Problems Symptom Cause Appears if the battery is not installed or if the unit does recognize that the battery is installed Appears if the unit recognizes AC power is connected Corrective Action Paper doesn t move Paper out or jammed Replace paper or clear paper jam Defective sensor Replace recorder board or recorder assembly Defective drive assembly Replace drive assembly or recorder assembly Defective drive signals Replace Control Board Dirty sensor lens Clean sensor lens Defective communication between recorder board and motor Check motor to recorder board cable connector Table 4 10 Troubleshooting Troubleshooting Tables Recorder Problems Paper moves then stops Paper loaded incorrectly Make sure defibrillator is loaded pro
14. CRT Deflection Board J2 to CRT Deflection Yoke Pin Signal 1 VCOILRET BLUE 2 VCOILOUT RED 3 GND BLACK 4 HCOILOUT GREEN 5 HCOILRET YELLOW Each pin on the CRT deflection board J2 connects to a pin with the same number on the CRT deflection yoke as shown in Table H 34 Signal VCOILRET VCOILOUT HCOILOUT HCOILRET GND Definition Vertical deflection coil return Vertical deflection coil drive Horizontal deflection coil drive Vertical deflection coil return Tied to DAG ground of CRT through single screw attaching PC board to CRT frame Table H 35 Table H 36 Appendix A Connector Pin Assignments CRT Deflection Board CRT Deflection Board J3 to CRT Socket Board J5 CRT Deflection Board J3 CRT Socket J5 Pin Signal Pin J3 1 GND J5 3 J3 2 VIDEOOUT J5 2 J3 3 GND J5 3 J3 4 12V J5 4 Signal Definition VIDEOOUT Video control voltage 28 dot off 4 3V half bright 0 0V full bright 12V 12 volt supply GND Ground CRT Deflection Board J4 to CRT Socket Board J5 CRT Deflection Board J4 CRT Socket J5 Pin Signal Pin J4 1 INTENS J5 1 J4 2 GRID 2 J5 6 J4 3 FOCUS J5 7 Signal Definition INTENS Display intensity adjustable 3 9V to 0 0V GRID 2 CRT Grid bias voltage adjustable OV to 200 V Table H 37 Table H 38 Appendix A Connector Pin Assignments Sp0 Board SpO Board On the SpO board P1 connects to J12 on the control bo
15. Pacer Board These tables list the pin assignments for the connectors on the pacer board The connectors and the assemblies they connect to are listed in Table H 24 Table H 25 lists connector pin assignments for J51 and P51 Pacer Board Connections Pacer Board Via Cable Assembly or Wire Connects To Reference J1 M1722 61617 Control board J7 Table H 8 J51 HV RED Patient relay isolated Table H 25 P51 HV WHITE Front end board Isolated Table H 25 A 28 Table H 25 Table H 26 Table H 27 Appendix A Connector Pin Assignments Power Supply Board Pacer Board J51 P51 Pin Signal Connection Signal J51 PACER Patient relay N C 1 PACER P51 PACER RTN WHITE HV WIRE Front end board J66 PACER Signal Definition PACER Positive polarity of pacer output PACER RTN Pacer output return Power Supply Board These tables list the pin assignments for the connectors on the power supply board The connectors and the assemblies they connect to are listed in Table H 26 Table H 27 and Table H 28 list connector pin assignments for J2A and J2B Power Supply Board Connections Power Supply Via Cable Assembly Connects To Reference Connector J1 M1722 61607 AC input cable Table H 27 J2A M1722 61606 High voltage board J1 Table H 28 J2B M1722 61606 Control board J8 Table H 9 Power Supply J1 to AC Input Cable Pin Signal 1 LOW LINE BROWN 2 IMAGE PLANE Cable shield also connects to VDC RETN
16. Peak Current dd e 30 A 10 55 p Using only battery power set Energy Select to 360 test MSec to charge eeee Delivered Energy fff Impedance gg Peak Current hh Using AC power battery removed set Energy Select to 360 test e MSec to charge iiii Delivered Energy jjj Impedance kk e Peak Current Conduct Disarm Test charge to 360 disarm m 5000 e 360 15 50 Ohm 10 e 55 A 10 15000 e 360 15 50 Ohm 10 55 A 10 pass or fail 3 3 Performance Verification and Maintenance Test Results Matrix Table 3 1 Performance Verification CodeMaster XL M1722B Data to Record Test Block Test or Inspection to Expected Passing x P pass or F Name Perform Test Results fail ECG Tests E Check E x aaa e fff Leads Status Paddle Good displayed on Status and DSP Status x screen example E p 0 1 60 DC Offset aaa XXX mV PCI Calibration o paddles shorted e e 0 2 ohms o paddles in pocket fff 20 100 ohms Auxiliary Conduct the following tests Pass displayed on A x Function Tests A screen for all tests CRT Test example Recorder Test A p Controls Test ndicator Test Pacer Test PT Conduct the Pacer Test with PT aa bbb e Selected Output set to 40mA Delivered mA is 40mA example aa 5 PT 40 99 Selected Output set to 100mA bbb
17. This instrument is a portable defibrillator monitor powered by internal battery or AC power It combines a 360 joule defibrillator ECG monitor and annotating strip chart recorder in a compact light weight package Instrument features include crisis oriented controls fast charge a real time clock interchangeable paddles and automatic documentation of events The monitor includes a 5 inch screen which displays the ECG selected ECG source heart rate and messages and alerts A microprocessor based system rejects noise and artifact and automatically stabilizes and restores baseline In addition the XL Option 01 has adjustable heart rate alarms patient contact indicator PCI recorder event marker complete recorder annotation event summary and 3 and 5 wire patient cable ECG capability Oxygen saturation measurement SPO is available as an option Transcutaneous external pacing is also available as an option or field upgrade for the XL The optional 12 pin ECG input connector is compatible with the ECG patient cable The XL can interface to the HP Central Station via an analog only high level ECG Out signal Figure 1 1 shows the XL defibrillator The XL defibrillator fits onto the MTRO OO336L cart The cart features three drawers with a latch lock system for storing suction pumps and other resuscitation equipment 1 1 Figure 1 1 Introduction The CodeMaster XL Defibrillator Monitor 1722 01 CodeMaster XL Defi
18. get Og ode Ug te p te ER RE RELIER HEISE Ud E e eet 7 2 Defibrillator Processor Functional Group essere nennen E treten ener entren 7 3 Defibrillation Control eee A es EE Aiea OPI RERUMS 7 4 CMAP SIN ESS 7 4 Discharging reins ent tore HO Dn aee E P P OE EREMO 7 5 System Monitor G2 oco eU T qe aea eee dte ttu eon RE IGA rade 7 5 Keyboard and Indicator Interface e eee eo enr eve EEEo TSS eine ESEE erioet EiS 7 6 The Monitor Processor Functional Group eese ennemi enr en nennen nennen 7 7 Central Processitg i itte tei NUR UR RE OR Meu odii step d Sane Nro E ben A 7 7 Display Controls esti nent Rees ae eal RUEDAS 7 7 Recorder Conttol RU RO neh oa anak a ai ade ioe 7 7 Interface to the Option Slot nte e OI ER ERE p been EEE Ei 7 7 Digital Signal Processor edite ere e oci UE E CH IEEE ED Medea ot advent 7 8 Power Supply Interface i e eto tege pe tede eee bee tede to o eee Re eor eee ets 7 8 Digital Backup Supply eee ei eee eae EP Mes ee tee 7 8 Power Bailute Detector 3 5 oor bett e ete eoe teet bestes gen rut 7 8 Switch 7 8 e ee eee hts 7 9 Miscellaneous Analog 7 9 Power Up Down Processes 3 enete obe eee entere e
19. good when fDEFIBSTAT is 1 0 V error when 21 0 V Keyboard and Indicator Interface The Defibrillator processor performs most of the keyboard and indicator functions through the System gate array For keyboard functions this is implemented with a parallel register set The Defibrillator processor debounces keys which are then saved in the System gate array In the System gate array both the Defibrillator and Monitor processors can access the debounced key registers Similarly output drive for the LED indicators comes from a parallel port controlled by the Defibrillator processor These outputs drive emitter followers which provide the current drive required by the LEDs All key lines are filtered for EMI The filters also provide some protection to the inputs of the gate array The energy select switch is treated differently It uses a 1 KQ pull up resistor to provide more current for switch contact reliability Theory of Operation Control Board The Monitor Processor Functional Group The Monitor processor an 80960KA processor handles central processing and with the CRT Recorder gate array display control and recorder control The Monitor processor also handles the interface with the Option Slot Central Processing The main processing power of the system consists of the Monitor processor its decoding and demultiplexing logic ROM and RAM The CRT Recorder gate array provides clocks and various control signals to th
20. GROUND and YCAPS 3 HIGH LINE BLUE A 29 Appendix A Connector Pin Assignments Power Supply Board NOTE A green yellow wire from the AC line module connects to the IEC ground lug on the defibrillator rear panel Table H 28 NOTE Appendix A Connector Pin Assignments Power Supply Board Power Supply J2A to High Voltage Board J1 Power Supply Board J2A High Voltage Board J1 Pin Signal Pin Signal 6 12R 10 12B 7 12R RTN 9 AGROUND 8 VBATT 8 VBATT 9 VBATT 7 VBATT 10 GROUND 6 AGROUND Tl VBATT 5 VBATT 12 VDC 4 VDC 13 VDC RTN 3 AGROUND 14 VDC 2 VDC 15 VDC 1 VDC J2A pins 1 through 5 are not used Signal 12R 12R RTN VBATT VDC Definition 12 volt supply 12 volt supply return Battery voltage AC DC converter voltage A 31 Appendix A Connector Pin Assignments High Voltage Board High Voltage Board These tables list the pin assignments for the connectors on the high voltage board The connectors and the assemblies they connect to are listed in Table H 29 Table H 30 and Table H 31 list connector pin assignments Table H 29 High Voltage Board Connections Hee Hacen Connects To Reference Board J1 M1722 61606 Power supply board J2A Table H 28 J2 M1722 61610 Control board J9 Table H 10 J3 HV capacitor and Patient inductor Table H 30 J5 Patient relay Table H 30 J6 HV capacitor and patient
21. MARK is highlighted Lead Select Press the panel Lead Select key LEAD SE 4 ECT is highlighted v ECG Size A Press the panel v ECG Size key The arrow is highlighted Press the panel ECG SizeA key The w arrow is highlighted Press the panel HR Alarm key HR ALARM is highlighted Review zo 2 2 e a 5 Press the key The left is highlighted Press the panel key The right is highlighted XL only with pacer option installed Press the key PACER ON is highlighted 2 Press the panel key The A arrow is highlighted Press the panel key The v is highlighted Start Stop Press the panel Start Stop key START STOP is highlighted Press the panel Output key The A arrow is highlighted Press the panel Output A key The w arrow is highlighted lt e c i gt Press the panel key MODE is highlighted With Sp0 option installed Sp0 On Off Press the panel Sp0 On Off key SPO2 ON OFF is highlighted Sp0 Alarm Press the panel 5 0 Alarm key Auxiliary Function Tests Indicator Test SPO2 ALARMis highlighted The indicator test exercises each LED and audio tone controlled by the defibrillator Testing the Indicators 3 21 Figure 3 8 Performance Verification
22. Press Lead Select to select the highlighted menu The display changes to show the configuration settings in the setup menu you selected The configura tion settings listed in each setup menu are shown in Figure 2 13 and Figure 2 14 Print the current configuration settings Press Record The recorder prints the current settings for both setup menus Exit the setup menu Press both arrows on the v ECG Size A key simultaneously to return to the main setup diagnostic menu Exit setup diagnostic menu Turn Energy Select to the Off Standby position to exit the setup diagnostic menu The v ECG SizeA key has both up and down arrows pressing s moves the highlight up and pressing t moves the highlight down 2 19 Setup and Configuration Configuration Figure 2 13 LANGUAGE ENGLISH UPPER ALARMS 120 140 160 ALARMS 40 60 90 TIME HH MM 00 00 DATE DD M YY 01 JAN 00 CHARGE DONE TONE ON CRT ALERTS ON ALERT VOLUME l5 MODE AFTER CV SYNC PACER RATE 70 PACER OUTPUT 30 Configuration Default Settings Setup Menu 1 These values are fixed not configurable and not displayed for the CodeMaster XL NOTE The pacer information is displayed only if the pacer option is installed 2 20 Figure 2 14 Setup and Configuration Configuration UN
23. Removal and Replacement Removing the Recorder Platen Assembly Removing the Recorder Platen Assembly Perform the following procedures and steps to remove the Recorder Platen Assembly 1 Perform the procedure Removing the Recorder 2 Open the platen assembly so that the print head is visible 3 Grasp the body of the recorder with the right hand and squeeze the body so that the hinge pins move in When the hinge pins disengage from the platen assembly lift the platen assembly from the hinges 4 To install a new platen assembly perform this procedure in reverse order Removing and Disassembling the Keypanel Assembly To remove the keypanel assembly you need to open the chassis and first remove the recorder and the recorder bucket Perform the following procedures and steps 1 Perform the procedure Removing the Recorder This procedure includes references to opening the chassis 2 The chassis should be open Three clips located in the top cover secure the keypad assembly into place Use a flat tip screwdriver to unhook the clips and remove the key pad assembly 3 The keypanel circuit board keypad plastic lens bezel and keylabel are all secured with two Torx T 10 screws Remove these screws to disassemble the keypanel assembly 4 To replace the keypanel circuit board first disconnect the flexible circuit cable that connects the circuit board to the Energy Control knob Use a small flat tip screwdriver to unh
24. This will avoid short ing the terminals on the lithium battery To install the control board perform the procedure Removing the Control Board in reverse order Calibrate the peak current measurement circuitry using the procedure Adjusting the Internal Delivered Energy Calibration on page 5 30 Removal and Replacement Removing the Control Board Figure 5 9 Removing the Control Board A Control board retaining screws Removal and Replacement Removing the ECG Front End Board Removing the ECG Front End Board To remove the ECG front end board perform the following procedures and steps 1 Perform the procedures Removing the Battery and Opening the Defibrillator Chas 515 2 Perform the procedure Removing the Control Board This procedure instructs you to access the chassis and also remove the pacer board power supply CRT assembly and control board 3 At the ECG front end board two red wires attach to the RED STERNUM connector One wire runs to the patient cables connector The other wire runs to the patient relay Disconnect both wires See Figure 5 10 4 At the front end board two white wires attach to the WHT APEX connector One wire runs to the patient cables connector The other wire runs to the patient relay Disconnect both wires 5 17 Figure 5 10 Removal and Replacement Removing the ECG Front End Board
25. nector or component in recorder interface circuitry Check the recorder board cable con nector Replace control board Printed data is garbled Defective printhead Replace printhead or recorder assem bly Defective component in data path Check printhead cables Replace control board 4 17 Table 4 10 Table 4 11 Table 4 12 Troubleshooting Troubleshooting Tables Recorder Problems Poor print quality or some dots not printing Dirty printhead Clean printhead Defective printhead or printhead cables Check printhead cable connector or replace printhead Defective component in recorder cir cuitry Replace recorder assembly Some dots always on Defective printhead Replace printhead or recorder assem bly Display and Logic Symptom Cause Corrective Action Display too dim or too bright Improper brightness adjustment Adjust brightness controls for best display appearance See CRT adjust ment procedure No brightness adjust Defective display assembly Replace display assembly All dark screen Contrast or brightness misadjusted Adjust contrast Deflection circuits failed or video cir cuits failed 1 Replace display board 2 Replace control board Panel Keys Symptom Keys won t work Cause Keypanel board cable unplugged or defective Corrective Action Reconnect or replace cable Keypanel circuit board defecti
26. through the finger is measured 3 Infra red phase In the infra red phase the infra red LED is lit and transmittance mea sured 4 Pleth Phase During this phase the infra red LED is lit and transmittance measured This signal is used to drive the pulse indicator bar on the CodeMaster display Consecutive frames of these four phases are repeated 375 times per second Both the lighting of the LEDs and the sampling of the signal from the photo diode is controlled by the microcontroller U252 Photo Amplifier The photo amplifier U102 converts current output from the photo diode to voltage Low pass filtering for electrosurgical unit ESU filtering and noise reduction is also done in this stage Excessive Light Detection A comparator U104 monitors the output of the photo amplifier checking for excessive light Excessive light could cause amplifiers to operate in a non linear range giving erroneous readings Ambient Light Rejection A two pole high pass filter C107 C108 rejects signals from ambient light Amplification The op amp U1034A is used as a variable gain amplifier It amplifies the detected light signal to an optimal amplitude for the A D converter U103B applies additional gain and level shifting centering the signal for the A D converter Phase Separation Dark Subtract Filter A series of switched low pass filters U106 C110 C114 are used to separate the four phases of light dark red infra re
27. tie locks off of the CRT assembly 5 12 Figure 5 7 Removal and Replacement Removing the CRT Assembly and Sp0 Board 1722 16 Removing the CRT Assembly A CRT assembly retaining screws B SpO board C SpO ribbon cable D SpO input connector To further disassemble the CRT assembly perform the following steps 1 Using insulated long nose pliers carefully lift the plastic collar away from the high voltage connection on the side of the CRT Slide an insulated flat tip screwdriver under the collar and discharge the CRT anode against the metal CRT assembly To remove the CRT itself from the assembly remove the high voltage connection from the side of the CRT Carefully remove the cathode connection from the end of the CRT At the deflection board disconnect the five wire CRT deflection connector The CRT is now free of the assembly Removal and Replacement Removing the Control Board Remove the small connector board at the back of the CRT Using a Torx T 15 screwdriver remove the four screws that secure the CRT to the CRT assembly Slide the CRT forward away from the assembly To remove the deflection board remove the single screw that secures the deflection board to the CRT assembly A ground wire is tied to this screw Slide the deflection board from the yoke assembly out from the CRT assembly To replace the SpO mylar insulator position a new sheet over the holes in the CRT assembly Usin
28. 1 standard deviation 80 to 100 3 Pulse rate measurement Range 30 to 300 bpm Accuracy 1 Resolution 1bpm Averaging Sp0 and pulse rate averaged over eight beats Sp0 alarm limits Three preset limits 100 90 100 85 and 100 80 Default is alarms off Time to alarm Alarm within 10 seconds of 5 0 value dropping below alarm setting Time to valid numeric Valid 15 seconds after power on Recovery after defibrillation 1 6 Valid numeric 15 seconds after a discharge Table 1 6 Table 1 7 Sp0 Monitor Optional Parameter INOP alerts Introduction Options and Accessories Specification Warning messages for 5 0 cable off noisy signal low signal light interference Pulse amplitude indicator Indicates pulsatile activity Shock Advisory Optional Parameter Analysis Time Specifications seven to ten seconds Output Energy Delivered Factory default protocol 200J 200J 360J Analysis Control Push button on front panel Charge Time Less than 5 seconds to 360 joules with battery present Less than 15 seconds to 360 joules to AC only Armed Indicators Charge done tone and available energy indicated on display Advisory Event Summary Stores approximately 200 events and 50 ECG strips Data retained after instrument turned off Waveform Damped sinusoidal Lown Options and Accessories CodeMaster XL De
29. 3 8 Visual Inspection ORE emen 3 8 Dehbrllator Calibr ttom E Ule liio dise petra bim eH 3 9 Test Prerequisites erreren ue em eeu Ea EEEE s Dn RD CUP UU SESSE aS EERS KEERT EEEE 3 10 Calibrating the Defibrillator ettet ret ORE EE EE E dened EA EE EKE E EEES 3 10 Defibrillator Test nenne hee pete bt r EEr P E Ee Re POR E EEEE ERE Ee 3 11 Test Prerequisites teet hE epe ehepeeipe aene s 3 11 Testing the Defibrllatot ci tert toe ee ib te e le o nea d ei be ien 3 11 Delivered Energy Level Test rere eet Renee ee Rete te ete erp e ERU ener te 3 14 local Es 3 14 Test Prerequisites onset wehren Peg ipid pure emp oe deep titii 3 15 Testng the ECG EE EUER ches EUREN GUERRE ROG te BUR ORE 3 15 PCT Cala brats EP P 3 16 Auxiliary Function Tests CRT enne eren nennen 3 16 Test wei C aes 3 17 Testing the e UR OR eed URS 3 17 Auxiliary Function Tests Recorder Test nennen tentent enne 3 18 Test Prerequisites noe gue SI ee RO DR RUP ied DE 3 18 Testing the eee teet aumente eiae 3 18 Auxiliary Function Tests Controls Test sss 3 19 Auxiliary Function Tests Indicator enne enne 3 21 Testing the In
30. 40 x 0 250 Sternum 2200 0103 12 Charge button M1746 47213 13 Fiber washer 3052 0682 15 Light indicator 43100 63000 16 Adult Adaptor M1746 62802 6 26 Table 6 9 Paddle Assembly Parts List Parts Lists Calling for Assistance dd Description Part No 23 Paddle labels PCI English M1722 84520 Paddle labels PCI French M1722 84521 Paddle labels PCI German M1722 84522 Paddle labels PCI Dutch M1722 84523 Paddle labels PCI Spanish M1722 84524 Paddle labels PCI Italian M1722 84525 Paddle labels PCI Swedish M1722 84526 Paddle labels M1722 84527 Paddle labels PCl Norwegian M1722 84560 Paddle labels PCI Finnish M1722 84561 Paddle labels PCI Danish M1722 84562 24 Paddle labels no PCI English M1722 84320 Paddle labels no PCI French M1722 84321 Paddle labels no PCl German M1722 84322 Paddle labels no PCI Dutch M1722 84323 Paddle labels no PCI Spanish M1722 84324 Paddle labels no PCI Italian M1722 84325 Paddle labels no PCI Swedish M1722 84326 Paddle labels no PCI Japanese M1722 84327 Paddle labels no PCl Norwegian M1722 84360 Paddle labels no PCI Finnish M1722 84361 Paddle labels no PCI Danish M1722 84362 6 27 Figure 6 13 Table 6 10 Parts Lists Calling for Assistance amp 2 g xa External Paddles Connector A
31. BAT 6 BAT NOTE Each pin on the battery board J4 connects to a pin with the same number on the battery assembly Signal Definition BAT Positive terminal of battery BAT SLOW Connection first made by the long pin in the battery connector limits current when initially charging capacitance on the VBATT line BAT SENS Battery Sense BAT Battery return Connects to negative terminal of battery Table H 41 Battery Assembly Appendix A Connector Pin Assignments Battery Assembly The battery assembly connects to the J4 on the battery board See Table H 40 for pin assignments HV Capacitor The HV capacitor connects to the high voltage board J3 and J6 See Table H 30 for pin assignments Patient Relay Table H 41 lists the connection points for the patient relay Patient Relay Patient Relay CHARGER N C 2 Connects To High voltage board J8 HV CAP 0 1 Patient inductor INDUCTOR OUT HV CAP COMMON 2 High voltage board J6 2 PRELAY DRIVE High voltage board J5 1 GROUND High voltage board J5 2 PRELAY DRIVE High voltage board J5 3 PACER N C 1 Pacer board J51 OUTPUT COMMON 1 Front end board J61B OUTPUT N O 2 Front end board J62B A 39 Appendix A Connector Pin Assignments 50 Ohm Load Assembly 50 Ohm Load Assembly The 50 ohm load assembly connects to J63 on the front end board See
32. DONE TONE Generates a continuous tone this tone is lower in frequency than the Heart Rate Alarm tone AUTO DISARM WARNING Generates an intermittent tone that is the same frequency as the Charge Done tone SHUTDOWN WARNING Outputs a tone that alternates continuously between the Charge Done tone and the HR Alarm tone frequencies Pacer Test Option installed Testing the pacer does not check the energy level that pacing delivers testing verifies that the current delivered is equivalent to the levels indicated on the defibrillator screen To verify pacer operation use a commercially available pacer tester See Table 3 5 for equipment information Follow the instructions provided with the pacer tester to perform the test Test Prerequisites A test load HP M1781A is required Testing the Pacer Follow these steps to perform the pacer test 1 While pressing the and HR Alarm keys turn the Energy Select control from the Off Standby position to Monitor On The setup diagnostic menu appears after a moment 2 Select TEST PACER on the setup diagnostic menu 3 Press Lead Select to select the Pacer test The monitor displays the information shown in Figure 3 9 3 23 Performance Verification and Maintenance Performance Verification Figure 3 9 PACER DIAGNOSTIC TX PACER STATUS OFF STOPPED or PACING SELECTED RATE xx in ppm DELIVERED mAMPS xx in mA TURN OFF TO
33. EXIT DIAGNOSTIC e P Pacer Test PACER STATUS Shows whether the pacer function is turned off is turned on but is not pacing STOPPED or is pacing PACING The key turns the pacing function on and off pacing can be turned on and also be stopped PACER STATUS may also show NO PADS or PADS OFF momentarily after START is pressed SELECTED RATE Indicates the current output rate in pulses per minute as selected by the pacer key DELIVERED Indicates the output level of the delivered pulses as measured mAMP S by the defibrillator in mA 4 Connect the test load HP M1781A 5 Press once to turn on the pacer function The indicator in the key should turn on PACER STATUS should say STOPPED 6 Press v Output A to increment the pulse output to the desired level The current level is displayed on the screen 7 Press Start Stop to start pacing PACER STATUS should say PACING 3 24 Performance Verification and Maintenance Performance Verification 8 Check that the DELIVERED mAMPS on the display is within these specifications Output Level DELIVERED mAMPS lt 50 mA 5mA gt 50mA 10 Parameter Function Tests SpO Test Testing of the SpO option includes an internal self test and a functional test SpO Internal Self Test Every time the SpO monitoring is turned on the instrument runs a self test on the SpO PCA 1 Tu
34. Hz No manual setting or adjustment is required Installing and Charging the Battery This procedure describes installing the battery for the first time To replace a battery refer to the battery replacement procedure in Chapter 5 Removal and Replacement The defibrillator operates from either battery or AC power Use only HP battery assembly M1758A The use of a non HP recommended battery may induce a problem and void the product warranty Setup and Configuration Setup WARNING To avoid the possibility of hazardous electrical shock unplug the instrument __ from the AC power source before installing or replacing the battery Figure 2 1 AANA AAT Accessing the Battery Compartment A Battery compartment door B Retaining screws G turn C Bottom side of defibrillator D AC power receptacle E Equipotential connector 2 2 Figure 2 2 Setup and Configuration Setup M1722 02 Installing the Battery A Battery B Battery compartment C Battery plug D Battery connector To install the battery 1 Turn the instrument upside down 2 Open the defibrillator battery compartment by turning the two l turn screws on the battery door 1 turn counter clockwise as shown in Figure 2 1 then lift off the battery door 3 Align the polarized battery plug with the battery connector located inside the ba
35. Log Activate where Nothing PPr Pacer Present PPr 8 0 5 0 PPr amp 5 0 Activate where Nothing A EMS ECG PP AG Auto Gain FV FV Feature Vector PP amp Vector Pace Pulse AG AG amp PP AG amp FV AG amp FV amp PP A A amp PP A amp FV A amp FV amp PP 8 A amp AG amp PP A amp AG amp FV A amp AG amp FV amp PP won aK gt O N OX FV Feature Vector is also called Measurement Matrix EMS filter and Measurement Matrix set up features are software revision dependent software revision 57 00 52 33 To activate these features press the following keys highlight Setup Menu 1 press the Select key then press simultaneously Pace Pulse SYNC HR Alarm Mark Measurement Matrix To activate these features press the following keys highlight Setup Menu 2 press the Select key then press simultaneously Auto Gain EMS ECG 4 5 NOTE Troubleshooting The System Log SHOCKS The number of shocks since the shock counter was last reset Calibration This area will contain one of these status CALIBRATION PASSED dd mmm yy The last defibrillator calibration on the date shown was successful CALIBRATION FAILED dd mmm yy The last defibrillator calibration on the date shown failed the defibrillator will still function but charge energy levels may n
36. M1722 67210 1 CRT Tube M1722 62810 2 CRT Chassis M1722 07301 3 Deflection PCA M1722 60130 5 Screw M3x 10 qty 1 0515 0374 6 Washer flat qty 4 2190 0419 Table 6 7 Parts Lists Calling for Assistance CRT Assembly Parts List Ref i No Description Part No 7 Screw M4x10 qty 4 0515 0380 8 Yoke 5062 2112 9 Cable CRT Control M1722 61619 6 20 Parts Lists Calling for Assistance Figure 6 9 Recorder Assembly Table 6 8 Recorder Assembly Parts List Description Part No Recorder Assembly white amp yellow M1722A B M1723A B include items M1722 69520 numbered 1 through 21 1 Platen door assembly white M1722A M1723A M1722 67410 Platen door assembly yellow M1722B M1723B M1722 67491 2 Right chassis M1722 67303 3 Spring door right M1722 27413 4 Gear 1 64 40 M1722 47401 5 Gear 2 50 20 M1722 47402 6 Gear 3 64 16 M1722 47403 7 Gear 4 32 M1722 47404 8 Motor assembly M1700 67403 9 Retaining ring 0510 0238 10 Screw M3 x 6 qty 2 0515 0430 11 Spring extension qty 2 M1722 27418 6 21 Table 6 8 Parts Lists Calling for Assistance Recorder Assembly Parts List Ref No Description Part No 13 Door sliding white M1722A M1723A M1722 47211 Door sliding yellow M1722B M1723B M1722 47296 14 Printhead assembly M1722 67450 15 Recorder PCA M1722 60155 17 Spring door left M
37. M1722A M1722 47221 Bezel pacer yellow M1722B M1722 47291 Bezel no pacer white M1722A M1723A M1722 47209 Bezel no pacer yellow M1722B M1723B M1722 47299 7 Cover top white M1722A M1723A M1722 47200 Requires case label set Cover top yellow M1722B M1723B M1722 47290 Requires case label set 8 Contactor paddle M1722 04701 8a Screw M3 x 4 Paddle retainers 0515 0663 The white and yellow printer cables are contained in the Printer Label Kit M3500 69559 6 6 Parts Lists Calling for Assistance Table 6 1 Top Case Parts List Description Part No iia Nus 9 Case labels English white M1722A M1723A M1722 84510 Case labels French white M1722A M1723A M1722 84511 Case labels German white M1722A 1723 M1722 84512 Case labels Dutch white M1722A M1723A M1722 84513 Case labels Spanish white M1722A M1723A M1722 84514 Case labels Italian white M1722A 1723 M1722 84515 Case labels Swedish white M1722A M1723A M1722 84516 Case labels Japanese white M1722A M1723A M1722 84517 Case labels Norwegian white M1722A M1723A M1722 84550 Case labels Finnish white M1722A M1723A M1722 84551 Case labels Danish white M1722A M1723A M1722 84552 9 Case labels English yellow M1722B M1723B M1722 84210 Case labels French yellow M1722B
38. M1723B M1722 84211 Case labels German yellow M1722B M1723B M1722 84212 Case labels Dutch yellow M1722B M1723B M1722 84213 Case labels Spanish yellow M1722B M1723B M1722 84214 Case labels ltalian yellow M1722B M1723B M1722 84215 Case labels Swedish yellow M1722B M1723B M1722 84216 Case labels Japanese yellow M1722B M1723B M1722 84217 Case labels Norwegian yellow M1722B M1723B M1722 84240 Case labels Finnish yellow M1722B M1723B M1722 84241 Case labels Danish yellow M1722B M1723B M1722 84242 10 Advisory Mode Instruction Lahel English M1722 84120 Advisory Mode Instruction Label French M1722 84121 Advisory Mode Instruction Label German M1722 84122 Advisory Mode Instruction Label Dutch M1722 84123 Advisory Mode Instruction Label Spanish M1722 84124 Advisory Mode Instruction Label Italian M1722 84125 Advisory Mode Instruction Label Swedish M1722 84126 Advisory Mode Instruction Label Japanese M1722 84127 Advisory Mode Instruction Label Norwegian M1722 84128 Advisory Mode Instruction Label Finnish M1722 84129 Advisory Mode Instruction Label Danish M1722 84130 6 7 Figure 6 2 Table 6 2 Parts Lists Calling for Assistance Cable Clamp Bottom of case top bottom of clip Detail B 3x Cable Clamp ni Top of Recorder wall to bottom of clip Detail A 3x
39. Switched printer VDC A switched version of the VDC supply CAL A voltage that encodes the printhead resistance used to set the duty cycle for printhead writes Front End Board These tables list the pin assignments for the connectors on the front end board The connectors and the assemblies they connect to are listed in Table H 15 other tables list connector pin assignments Front End Board Connections Front End Via Cable Coniiector Assembly Connects To Reference J1 M1722 61615 ECG In connector 8 pin Table H 16 J1 M1722 61614 ECG In connector 6 pin option J02 Table H 17 J1 M1722 61616 ECG In connector 12 pin option J03 Table H 18 J2 1722 61611 Control board Table H 3 J61 plo M1722 82806 Defibrillator connector and patient relay Table H 19 J62 plo M1722 82806 Defibrillator connector and patient relay Table H 19 J63 plo M1722 60010 50 ohm load Table H 19 J66 plo M1722 60170 Pacer board Table H 19 A 20 Appendix A Connector Pin Assignments Front End Board A 21 Appendix A Connector Pin Assignments Front End Board Table H 16 Front End Board J1 to ECG In Connector 8 pin ECG Front End Board J1 ECG In Connector Pin Signal Pin Signal 1 LREF 4 Shield 2 RA 1 RA 3 LL 7 LL 4 LA 2 LA 5 V 6 Chest b wire 6 RL 8 RL 5 wire 7 LREF Cable Shield Table H 17 Front End Board J1 to ECG In Connector 6 pin ECG Front End Board Ji ECG In Connecto
40. To adjust the horizontal rotation of the display you will adjust the position of the yoke Loosen the machine screw on the yoke clamp Use an insulated 7 32 allen wrench See Figure 5 15 5 27 Removal and Replacement Adjusting the CRT Figure 5 15 M1722 25 CRT Adjustments A Yoke clamp and screw B Yoke C Horizontal size adjustment D Vertical position adjustment E Vertical size adjustment F Focus adjustment G Intensity adjustment 6 Using a non conductive probe rotate the CRT yoke in either direction while viewing the display Position the yoke so that the display is positioned in the most vertical hori zontal position Tighten the yoke clamp when the display is satisfactory 7 To adjust the horizontal size or gain of the display insert a 3 32 plastic Allen wrench part number 8710 1355 into the back of the small inductor located on the CRT yoke Rotate the inductor core to adjust the horizontal size of the display so that it matches the dimensions shown in Figure 5 16 5 28 Removal and Replacement Adjusting the CRT 8 To adjust horizontal centering you must adjust magnets on the back of the yoke assem bly Place the magnets at 3 00 and 9 00 positions Move the two magnets up towards 12 00 together or down towards 6 00 to shift the display image 9 To adjust the vertical position of the display adjust the front most potentiometer located on the top of the CRT deflection circuit board Use an insula
41. a Patient Cable A ECG Input connector with key slot B Keyed plug of patient cable SpO Connector You can attach the HP M1190A SpO sensor or the M1900B adaptor cable to the SpO connector Refer to the Sensor Guide M1722 93970 for available sensors Connecting an SpO Sensor The M1190A SpO sensor and the M1900B adaptor cable attach to the SpO connector on the front of the defibrillator to the right of the carrying handle The connector and the end of the cable are color coded blue To connect the cable align the keyed cable plug with the slot on the connector as shown in Figure 2 11 and push the plug firmly into the connector Figure 2 11 Setup and Configuration Configuration 1722 04 Connecting an Sp0 Sensor Configuration The defibrillator is designed to provide custom operation Configuration settings let the user program the defibrillator for the most useful and efficient operation Defibrillator configuration is set at the factory but should be checked by the technician at initial setup and changed as desired This section describes how to display print or change the defibrillator configuration settings and the current date and time Setup and Configuration Configuration Displaying the Setup Diagnostic Menu To display the setup diagnostic menu press both the and keys while turning the Energy Select control from the Off Standby to Monitor On position A display with a list of choices appears F
42. a pin with the same number on the keypanel board al Signal nCHARGE KEY nS YNCDEFIB nPRINTSTOP nMARKEY nLEADSKEY nREVIEW KEY nALARMKEY nACONLED BCHGLED nECGINC nECGDEC CHDLED nPTAKEY SYNCLED Definition A signal generated by the key on the keypanel active low Initiates a charge operation A signal generated by the key on the keypanel active low Toggles between sync and defib operation modes A signal generated by the key active low Starts and stops the recorder A signal generated by the key active low Prints a mark A signal generated by the Lead Select key active low Selects the active lead A signal generated by the key active low Left side of key A signal generated by the key active low Controls HR Alarm functions AC On LED Lights when unit is plugged into AC power Battery Charge LED Lights when unit is plugged into AC power and battery is installed A signal generated by the key active low Left side of key A signal generated by the key active low Right side of key Charge Done LED Lights the Charge Done LED in the apex paddle Reserved This signal lights the LED when the unit is in sync mode Asserted high Signal nHISTKEY ENSEL 0 1 2 3 nON Appendix A Connector Pin Assignments Control Board Connectors Definition A signal generated by the key active low Right side of key Energy Select Four
43. asserted by the system gate array to initiate a charge cycle Used in conjunction with CHRATE Open Safety Relay A signal asserted by the system gate array which removes the 47 kQ safety resistor which is normally across the HV capacitor AC On logic signal which is active only when 5V is present Voltage CAPacitor The capacitor voltage that is sampled to monitor the energy present across the HV capacitor Battery voltage Asserted by the system gate array to close patient relay connecting the patient to the high voltage capacitor Qualified with HVDISCH on the HV board Battery Present signal When battery is installed this line is low Charge Rate An analog signal used to set the charge rate Used with CHGEN to initiate a charge cycle Table H 11 Table H 12 NOTE Appendix A Connector Pin Assignments Control Board Connectors Control Board J10 to Patient Inductor 5 volt supply to the Peak transformer Pin Signal 1 IPEAK5V 2 IPEAK Signal Definition IPEAK5V IPEAK IPeak measurement signal from the Peak transformer Control Board J11 to CRT Deflection Board J1 Pin Signal 1 GND 2 VSYNC 3 GND 4 FBVIDEO 5 GND 6 HBVIDEO 7 GND 8 HSYNC 9 CRT12V 10 CRT12V Each pin on the control board J11 connects to a pin with the same number on the CRT deflection board J1 Signal Definition VSYNC Vertical Sync signal FBVIDEO Full Bright Video signal HBVIDEO Ha
44. charger board disconnect the three wires two red and one white from the high voltage capacitor and the patient inductor Label these wires so that you can reinstall components correctly To install the high voltage charger board perform the procedure Removing the High Voltage Charger and Relay Assembly in reverse Refer to the Interconnect Block Diagram Figure A 1 in Appendix A for wiring information Refer to Figure 5 13 and Figure 5 14 for wire connections Removing the High Voltage Capacitor To remove the high voltage capacitor perform the following procedures and steps The high voltage storage capacitor can store lethal amounts of energy Be sure that this capacitor is discharged before touching high voltage components such as the high voltage capacitor patient inductor patient relay or patient cable connector To discharge the high voltage capacitor 1 Be sure to wear safety glasses while discharging the capacitor 2 In diagnostic mode make sure that the Available Energy is 0 the Energy Select control is in the Monitor On position 3 Turn the Energy Select control to Off Standby 4 Wait 30 seconds before opening the unit 5 Incase of a defective safety relay if you do not short the high voltage capacitor you may have to wait one hour to service the unit 1 Perform the procedures Removing the Battery and Opening the Defibrillator Chas SIS 2 Perform the procedure Removing the Co
45. eO Rr Hte hir Reip erts 3 33 Calibration Test x i tede te dee A ees Ae ct A ce eee E eds 3 33 Defibrillator Test i eene eerte Pme DERE THERE HORE 3 33 viii Contents ECG Tests qc EE 3 34 Auxihary Function Tests oeste eee ttg p b e ERI ree TR He RH e etidm 3 35 ee va E ERR ERE Een 3 35 Parameter Eunction Tests 5 oto bee ter PR EEUU EPIRI RT OUR Ue Maced 3 35 Safety Tests ose Eee nete BICI Mp 3 35 Cominents x gne ote sie dee ERE ERE EE i AR EE Rte ahaha eee 3 36 Troubleshooting liner 4 1 Maintenance Philosophy ied 4 1 Troubleshooting Gudenes nne eenen etse Sek tete ei eret OREL ce PEOR Ree 4 1 Venty the Eail te aaa a a aa AER dv RD Ur or RR RR ue EP ERE 4 1 Check the Error System Log tee ee eet yere tree Poe eed Pee e RES Re dee erbe repens 4 1 Using the Troubleshbootirig Tables ei e EUR Ure n bae bo seb TE 4 2 Using Setup Diagnostic Tests in Troubleshooting eene nennen trennen 4 2 Venfication after RE part evita etm 4 2 Test Equipment are p UH RO EE Rte tee rp pio o Perte 4 3 Safety Considerations iiec tee oput in i eic cb sch cates RE erc Pete he o HN 4 3 The System LOE ise E 4 4 Error Codes A Ha Sa aan ae ead REM 4 6 Clearing the Error E09 ret
46. high voltage charger board the patient relay high voltage capacitor and patient inductor This assembly is located under the control board at the left rear corner of the instrument Perform the following procedures and steps to remove the assembly The high voltage storage capacitor can store lethal amounts of energy Be sure that this capacitor is discharged before touching high voltage components such as the high voltage capacitor patient inductor patient relay or patient cable connector To discharge the high voltage capacitor 1 Be sure to wear safety glasses while discharging the capacitor 2 In diagnostic mode make sure that the Available Energy is 0 the Energy Select control is in the Monitor On position 3 Turn the Energy Select control to Off Standby 4 Wait 30 seconds before opening the unit 5 Incase of a defective safety relay if you do not short the high voltage capacitor you may have to wait one hour to service the unit 1 Perform the procedures Removing the Battery and Opening the Defibrillator Chas sis 2 Perform the procedure Removing the Power Supply Assembly 3 Perform the procedure Removing the Control Board This procedure instructs you to open the chassis and also remove the CRT assembly and the pacer board 4 The battery connector board is positioned beneath the power supply and is attached to the high voltage charger assembly with soldered wires To remove the battery con
47. ned 1 3 Options and ACCeSSOTIES eere ti td e ener ende diede Hoe o edle e depen 1 7 CodeMaster XL Defibrillator Monitor essent eene nennen nennen trennt nennen 1 7 Country Options Pete tte tdt ete Geo oe ae Aaa 1 8 Pacing Option A0O1 Plus Package eese 1 11 COD i 1 11 SPOJ ODIOM E Ae Ee 1 11 Paddles and Pad Options see ABN Rei ee A eo GRAS GAS AS ee 1 11 ECG Cable Connector Options id eti e eerie etre bem ee dene 1 12 Defibrillator Case Color 2 eter e tere hetero edet i ppt 1 12 Hard wate Options sinere ieget ea eee ee PERRO NORTE S DR ie Local Seas 1 12 Shock Advisory Option 2 ee tete eH Og e e ree pe peines 1 12 Multifunction Electrodes rennen etre nennen nen nreteee tret 1 12 Upsrade PEIOBram Le eee ERU ROI aget tete esee D eee rete R 1 12 sSync Cable Options neni Ge ee AIRS AA ise ERR RERO Benoit 1 12 Documentation Options UU RR e bete Ee E EU D DEED SER tn estes 1 13 Standard Accessories Supplied eee o ep tee RE RR IDEE 1 13 Cart ii Ss gehe Ha edite t rte iH crt Heide A aaa 1 13 rua 1 13 Introduction te etr eno tire e DISTRETTO H T RERO DURO tede tree 2 1 Setups scende ERREUR HIGHER CEDE 2 1 Tine Voltage Settings i
48. performance verification The exception is the battery capacity test which is a built in menu driven test that discharges and monitors the battery voltage This test is included in preventive maintenance for checking battery capacity 3 1 Performance Verification and Maintenance Test Results Matrix Test Results Matrix Table 3 1 summarizes performance verification for the CodeMaster including test name test or inspection to perform expected test results and data to record Auxiliary function tests include the CRT Test the Recorder Test the Controls Test and the Indicator Test Parameter function tests include the SpO2 Test if option is installed the HR Alarm Test the ECG Simulation Test and the Synch Cardioversion Test The sections that follow explain the individual tests and inspections in detail All performance verification tests outlined in Table 3 1 must be performed following any service procedure performed on the CodeMaster In addition to testing after servicing instrument recalibration is always recommended should any of the following events occur f the user suspects that the defibrillator is delivering an energy level lower than the level selected via the Energy Select control e CALIBRATE DEFIB date on the main setup diagnostic menu is no longer dis played Refer to Chapter 2 Setup and Configuration for information about the menu Note that the defibrillator is shipped with no dat
49. series of internal checks If the results are satisfactory it releases the nFAILURE line The processor then fetches the first eight words from memory ROM and performs a checksum on the results of the fetch If the checksum is correct the processor continues If not the nFAILURE line is again driven low and the processor halts operation By watching the nFAILURE line as the processor comes out of reset you can determine whether the processor is functioning internally and whether its connection to ROM is functioning Power Down A power down sequence is initiated by the power failure detector When the energy select switch is moved to its off position or 5 V supply drops below 4 65 V the power failure detector asserts nPF the power fail signal This signal is routed to the System gate array which then drives a power fail interrupt to both the Monitor and Defibrillator processors These interrupts tell the processors that they have 1 ms of power to accomplish any tasks that must be performed before they shut down 8 ms after nPF occurs RRAWRST is asserted Figure 7 2 Theory of Operation Power Supply Power Supply The power supply is a universal input supply that accepts 80 264 Vac input It provides 5 and 12 volts to operate the defibrillator logic and display circuits and approximately 13 5 volts VDC to charge the battery and power the high voltage charger and recorder The block diagram of the power supply is shown i
50. setup menu 1 or setup menu 2 The Setup Lost condition will be cleared when you view the setup menus You do not have to change the values if you want to keep the factory settings Changing a Configuration Setting Description Display the setup diagnostic menu Process Press both the CSync and HR Alarm keys while turning the Energy Select control from Off Standby to the Monitor On position Highlight the setup menu Press ECG Size or ECG SizeA to move the highlight over SETUP MENU 1 or SETUP MENU 2 The configuration settings listed in each setup menu are shown in Figure 2 13 and Figure 2 14 Display the setup menu Press Lead Select to select the highlighted menu The display changes to show the configuration settings in the setup menu you selected Highlight the setting you want to change Press ECG Size or ECG SizeA until the highlight appears on the setting you wish to change Select the highlighted setting Scroll through the possible settings Press ECG Size or ECG SizeA Select the setting When the choice you want is displayed press Select to set your choice Repeat this process to change another configuration setting if desired Exit the setup menu Press both arrows on the Cw ECG Size A key simultaneously to return to the main setup diagnostic menu Store settings and exit setup diag nostic
51. the QRS tone Control Board J5 to Defibrillator Connector J1 Pin Signal 1 nPADCHG 2 nDISCHGA 3 CHDONELED 4 GND 5 PAD5V 6 CGND 7 PCIDRV 8 nDISCHGS Each pin on the control board J5 connects to a pin with the same number on the defibrillator connector J1 Signal nPADCHG Definition Paddles Charge Signal generated by the paddles charge button active low Initiates a charge operation Table H 7 Appendix A Connector Pin Assignments Control Board Connectors Signal Definition nDISCHGA Discharge Apex A signal asserted when the apex paddle shock button is pressed CHDONELED This signal is used for paddle type identification and it lights the Charge Done LED in the apex paddle PADSV 5V supply for the paddles PCIDRV This signal drives the PCI LED bar graph on the sternum paddle nDISCHGS Discharge Sternum A signal asserted when the sternum paddle shock button in pressed Control Board J6 to Keypanel Board A1 Pin Signal Pin Signal 1 GND 14 CHDLED 2 nCHARGEKEY 15 HWID 3 nSYNCDEFIB 16 nPTAKEY 4 nPRINTSTOP 17 SYNCLED 5 nMARKEY 18 nHISTKEY 6 nLEADSKEY 19 CGROUND 7 nREVIEWKEY 20 NIC 8 nALARMKEY 21 ENSEL 0 9 nACONLED 22 ENSEL 1 10 BCHGLED 23 ENSEL 2 11 GND 24 ENSEL 3 12 nECGINC 25 13 nECGDEC 26 GND NOTE Appendix A Connector Pin Assignments Control Board Connectors Each pin on the control board J6 connects to
52. time or with a 6 second delay Frequency response 0 5 to 40 Hz Additionally on Option 01 0 05 150 Hz selectable Table 1 4 Power and Battery Specifications Parameter AC Line Power Line frequency Specification 50 and 60 Hz Line voltage Battery Type 100 230 V AC x 159 Rechargeable sealed lead acid 4 Ah 12 V nominal 1 5 Introduction Specification Data Table 1 4 Power and Battery Specifications Parameter Specification Charge time Approximately 2 hours to 90 of full capacity 18 hours to 100 capacity Repeated charging to less than 100 will reduce useful life of battery Capacity Approximately 2 5 hours of monitoring or 50 full energy discharges or 1 hour of moni toring and recording Indicators Illuminated LED indicates battery is charging LOW BATTERY message appears on monitor when limited battery capacity remains Table 1 5 External Pacer Optional Parameter Specification Current pulse amplitude 10 mA to 200 mA Pulse width 20 msec Rate 40 ppm to 180 ppm Modes Demand or fixed rate Refractory period 40 to lt 80 ppm 340 msec 10 gt 80 to 180 ppm 240 msec 10 Table 1 6 5 0 Monitor Optional Parameter 5 0 measurement Specification Range 0 to 100 Accuracy with HP 1190A transducer 1 standard deviation 65 to 80 2 5 80 to 100 1 5 Accuracy with Nellcor N 25 1 20 0 20 0 25 Oxiband A N Oxiband sen sors
53. to 0 ERGY value dec z 11 Repeatthe test for the other power configuration if you are doing the battery only test or for the other energy level if desired Performance Verification and Maintenance Performance Verification Table 3 3 Defibrillator Test Limits Available MSec to Delivered Defibrillator Configuration Sec to Disarm Impedance Peak Current Energy Charge Energy Battery Only 100 lt 2000 2 85 115 j 45 550 26 33 360 j lt 5000 306 414 j 45 550 50 60 AC Only Battery removed 360 j lt 15000 306 414 j 45 550 50 60 Disarm Test 360 j pass or fail To test the manual disarm function 12 Turn the Energy Select control to 360 joules 13 Press Charge 14 When the charge reaches 360 joules turn the Energy Select control directly to Moni tor On Turn the control quickly and do not stop at any level selection between 360 joules and the Monitor On position This step disarms the defibrillator 15 Check to see that the SEC TO DISARM test passed or failed as listed in Table 3 3 16 Press both sides of v ECG SizeA at once to exit the test menu Delivered Energy Level Test To perform the delivered energy level test you need a test box See Table 3 5 for equipment specifications The test checks that the delivered discharge energy measured by the test box is equivalent to the charge level displayed on the defibrillator To verify the delivered energy level follow the instructio
54. to charge eeee Delivered Energy fff Impedance gg O Peak Current hh Using AC power battery removed set Energy Select to 360 test o MSec to charge iiii Delivered Energy jjj Impedance kk o Peak Current ll o Disarm Test m Enter the data to record in the format DT aaaa bbb cc dd eeee fff gg hh iiii jjj kk Ilom For example DT 1300 100 50 30 3600 360 50 55 12000 360 50 55 p ECG Tests Leads Status Paddle Status and DSP Status x DC Offset aaa PCI Calibration o paddles shorted e o paddles in pocket fff Enter the data to record in the format E x aaa e fff For example E p 0 1 60 Performance Verification and Maintenance Performance Verification Checklist Auxiliary Function Tests CRT Test O Recorder Test O Controls Test o Indicator Test Enter the data to record in the format A x where x is p pass or f fail For example A p Pacer Pacer Test Option installed O Selected Output set to 40mA aa Selected Output set to 100mA bbb Enter the data to record in the format PT aa bbb For example PT 40 99 Parameter Function Tests SpO Test Option HR Alarm Test ECG Simulation Test O Synch Cardioversion Test set unit to sync mode check if defibrillator fires in synch Enter the data to record in the format F x where x is p pass or f fail For example F p Safety Tests o Chassis to Ground Resistan
55. two inch wide thermal paper 40457C D To load the paper 1 Slide the recorder door toward the right side of the defibrillator until the paper platen tilts up 2 Pull up on the plastic removal tag to remove the old paper roll if one is present 3 Unroll about six inches of paper on the new roll turn the paper roll so that the grid side of the unrolled paper is on the bottom facing downward 4 Place the roll of thermal paper in the recorder so that the grid side of the paper will face the print head in the recorder 5 Pull the free end of the paper upward and over the recorder platen See Figure 2 3 6 While holding the recorder door open to the right press the platen down to its normal closed position 7 Release the recorder door allowing it to close over the platen 8 Place the free end of the paper on the left side of the recorder The grid side should be visible facing up Setup and Configuration Setup 2 3 Figure Loading the Paper A Recorder Door B Paper Platen Figure 2 4 Setup and Configuration Setup Connecting Paddles Patient Cables and SpO sensors The defibrillator has a paddles connector defibrillator connector for attaching pads paddles sets and the ECG Input connector for attaching leads It also has an optional SpO connector for attaching SpO sensors Defibrillator Connector The defibrillator connector accepts external paddles external adhesive pads or internal p
56. voltage board 7 4 7 13 removing 5 19 high voltage capacitor 7 4 7 15 charging 7 14 removing 5 21 high voltage charger 7 14 high voltage charger and relay assembly removing 5 19 high voltage parts list 6 18 horizontal deflection 7 22 horizontal sync 7 22 indicator interface 7 6 indicators test 3 21 input protection leads 7 19 paddles 7 19 inspection visual 3 8 installation 2 15 installing battery 2 1 main battery 2 3 paddle set 2 1 paper 2 1 the battery 2 1 the defibrillator 1 1 interface display 7 7 keyboard and indicator 7 6 option slot 7 7 power supply 7 8 recorder 7 7 7 29 internal paddles defibrillator connector 2 7 interrupts monitor processor 7 7 isolated power supplies ECG front end board 7 18 pacer board 7 23 keyboard interface 7 6 keypanel problems 4 18 removal and disassembly 5 7 keypanel board configuring for model 5 7 replacing 5 7 keypanel parts list 6 15 lead input protection 7 19 leadwires 3 26 line voltage automatic setting 2 1 lithium battery replacing 5 33 loading recorder paper 2 5 locking paddle set connector 2 1 low battery shutdown 7 9 lubrication 3 28 main assembly parts list 6 4 6 10 main battery installation 2 1 installing 2 3 main setup diagnostic menu exiting 2 21 maintenance philosophy 4 1 preventive 3 28 menu setup diagnostic menu tests 3 6 5 V supply 7 9 monitor processor 7 2 central p
57. 0 2348 4 Washer nylon qty 2 3050 1400 5 Labels door lock qty 2 M1722 84538 6 Washer split 1390 0435 7 Washer nylon 1390 1005 8 Label Part of case label set See Table 6 1 6 14 Parts Lists Calling for Assistance Figure 6 6 Key Panel Assembly Table 6 5 Keypanel Assembly Parts List iit Description Part No 1 Keylabel without Sp0 English M1722A B M1722 84530 M1722 84900 Keylabel without Sp0 French M1722A B M1722 84531 M1722 84901 Keylabel without Sp0 German M1722A B M1722 84532 M1722 84902 Keylabel without Sp0 Dutch M1722A B M1722 84533 M1722 84903 Keylabel without Sp0 Spanish 1722 M1722 84534 M1722 84904 Keylabel without Sp0 Italian M1722A B M1722 84535 M1722 84905 Keylabel without Sp0 Swedish M1722A B M1722 84536 M1722 84906 Keylabel without Sp0 Japanese M1722A B M1722 84537 M1722 84907 Keylabel without Sp0 Norwegian M1722A B M1722 84570 M1722 84908 Keylabel without Sp0 Finnish M1722A B M1722 84571 M1722 84909 Keylahel without Sp0 Danish M1722A B M1722 84572 M1722 84910 6 15 Parts Lists Calling for Assistance Table 6 5 Keypanel Assembly Parts List Description Part No prima 1 Keylabel with SpO English M1722A B M1722 84600 M1722 84920 Keylabel with SpO French M1722A B M1722 84601 M1722 84921 Keylabel with Sp0 German M1722A B M1722 84602 M
58. 1 CRT Test Test Pattern 2 To determine whether the defibrillator CRT meets specifications observe the test pat tern to ensure accurate rendition of all lines no random lines or dots in the display If any of the following steps require adjustment see Adjusting the CRT on page 5 27 for adjustment information 3 17 Performance Verification and Maintenance Performance Verification 3 Check that the height and width of the display is within the limits shown in Figure 3 5 4 Check that all lines and characters are in focus 5 Check that the display is centered on the CRT face vertically and horizontally Check that the display is aligned horizontally and vertically 6 Check that the intensity of the displayed image is acceptable Auxiliary Function Tests Recorder Test The recorder test checks recorder parameters and prints a test pattern to check the printhead and paper drive mechanism Test Prerequisites Recorder paper and a ruler that measures in millimeters Testing the Recorder To run the recorder test follow these steps 1 Check that the recorder contains paper 2 Highlight TEST RECORDER on the main setup diagnostic menu 3 Press Record Lead Select The recorder starts printing a series of test patterns 4 When the printed strip is about 3 feet long press Record or v ECG Sizea to stop the printing and return to the setup diagnostic menu Figure 3 6 shows
59. 1 lubrication 3 28 printed failure messages 4 14 printhead resistance 7 5 temperature 7 5 printing error log 3 31 processor defibrillator 7 2 7 3 digital signal 7 2 7 8 monitor 7 2 real time clock 7 7 recorder door 2 6 loading paper 2 5 paper 2 6 parts list 6 21 platen 2 6 iv Index Index platen removal 5 7 problems 4 16 removing 5 5 test pattern 3 19 recorder door closing 2 5 opening 2 5 recorder interface 7 7 recorder platen assembly removing 5 5 recorder test 3 18 relay patient 7 5 7 14 safety 7 14 removal CRT 5 11 CRT assembly 5 11 CRT deflection board 5 11 ECG front end board 5 17 SpO board 5 12 battery 5 2 battery connector board 5 19 control board 5 14 high voltage board 5 19 high voltage capacitor 5 21 high voltage charger and relay assembly 5 19 keypanel assembly 5 7 pacer board 5 9 patient inductor 5 23 patient relay 5 19 power supply assembly 5 10 recorder 5 5 recorder platen assembly 5 5 5 7 repair philosophy 4 1 replacement SpO board 5 14 battery fuse 5 36 lithium battery 5 33 power supply fuses 5 35 reset 7 10 retaining screws battery compartment door 2 2 routine maintenance 3 28 safety considerations 4 3 safety relay 7 4 7 14 7 16 safety standards 3 28 safety tests 3 28 setting up the defibrillator 2 1 setup required tasks 2 1 setup and installation 2 1 setup diagnostic menu CALIBRATE DEFIB 2 17 PRI
60. 1722 27419 18 Screw M3 x 16 qty 2 0515 0375 19 Left chassis M1722 47302 20 Printer Label Kit M1722A B M1723A B M3500 69559 21 Paper ejector M1722 07452 Paper thermal not shown 40457C D The white and yellow printer labels are contained in the Printer Label Kit M3500 69559 6 22 Parts Lists Calling for Assistance Figure 6 10 External Paddles Assembly Apex 6 23 Parts Lists Calling for Assistance Figure 6 11 6 24 Parts Lists Calling for Assistance Figure 6 12 External Paddles Assembly Sternum without PCI 6 25 Parts Lists Calling for Assistance Table 6 9 Paddle Assembly Parts List Description Part No Paddle set Ant Ant w PCI white M1748A Paddle set Ant Ant w PCl yellow M1746B Paddle set Ant Ant no PCI white M1747A Paddle set Ant Ant no PCI yellow M1747B 1 Coil cord Apex sternum M1746 61600 3 Screw PHMS 4 40 x 0 375 qty 2 2200 0107 4 Cover paddle no PCI Apex Sternum M1746 47203 Cover paddle with PCI Sternum M1746 47204 5 PCA Apex paddle M1722 60192 6 PCA Sternum paddle no PCI M1722 60194 PCA Sternum paddle with PCI M1722 60190 7 Button discharge 43100 47121 8 Paddle Apex M1746 47201 9 Paddle Sternum no PCI M1746 47216 Paddle Sternum with PCI M1746 47215 10 Spring 43100 87400 11 Screw PHMS 4
61. 1722 84922 Keylabel with Sp0 Dutch M1722A B M1722 84603 M1722 84923 Keylabel with Sp0 Spanish M1722A B M1722 84604 M1722 84924 Keylabel with Sp0 Italian M1722A B M1722 84605 M1722 84925 Keylabel with Sp0 Swedish M1722A B M1722 84606 M1722 84926 Keylabel with Sp0 Japanese M1722A B M1722 84607 M1722 84927 Keylabel with Sp0 Norwegian M1722A B M1722 84608 M1722 84928 Keylabel with Sp0 Finnish M1722A B M1722 89609 M1722 89429 Keylabel with SpO Danish M1722A B M1722 84610 M1722 84930 1 Keylabel without Sp0 English M1723A B M1723 84330 M1723 84900 Keylabel without Sp0 French M1723A B M1723 84331 M1723 84901 Keylabel without Sp0 German M1723A B M1723 84332 M1723 84902 Keylabel without Sp0 Dutch M1723A B M1723 84333 M1723 84903 Keylabel without Sp0 Spanish M1723A B M1723 84334 M1723 84904 Keylabel without Sp0 Italian M1723A B M1723 84335 M1723 84905 Keylabel without Sp0 Swedish M1723A B M1723 84336 M1723 84906 Keylabel without SpO Japanese M1723A B M1723 84337 M1723 84907 Keylabel without Sp0 Norwegian M1723A B M1723 84338 M1723 84908 Keylabel without Sp0 Finnish M1723A B M1723 84339 M1723 84909 Keylabel without Sp0 Danish 1723 M1723 84340 M1723 84910 6 16 Parts Lists Calling for Assistance Table 6 5 Keypanel Assembly Parts List g Description Part No ee 1 Keylabel
62. 22 44 High Voltage Board Block Diagram Battery Connector The Battery Connector board is a small circuit board that connects the lead acid battery to the defibrillator Fuse F1 located on the Battery Connector board protects the battery from inadvertent instrument shorts Power is routed to the high voltage board via cable assemblies P3 and P4 Battery voltage is then routed through the high voltage board to the power supply via connector J1 7 13 Theory of Operation High Voltage Board Safety Relay Drive The safety relay is normally closed and opens when control signal OPNSFRLY is true As described earlier this relay must open before the high voltage capacitor can charge When a defibrillation discharge occurs the safety relay closes simultaneously with or up to 10 ms before the patient relay closes The safety relay circuit will then disarm the capacitor on an open paddles discharge Patient Relay Drive The patient relay switches high voltage to allow a defibrillator shock For this to occur both shock switches must be pressed to assert the signal DISCHRG and the Defibrillator processor must issue the shock command PRDRV patient relay drive which activates the patient relay The Defibrillator processor monitors the status of the discharge control circuitry by reading fDEFIBSTAT The Defibrillator processor can then display the appropriate error message in case of a fault Error messages are explained in Chapter 4 Trouble
63. 29 battery compartment accessing 2 3 5 3 battery compartment door re installing 2 3 battery connector board 7 13 removing 5 19 battery door parts list 6 14 beeper filtering and amplification 7 9 cable ECG patient 2 13 internal paddles adapter 2 9 pads adapter 2 8 cal pulse for ECG front end 7 19 calibration defibrillator 3 9 peak current 4 19 cardioversion sync 3 26 cart description 1 2 charge operation 7 4 charger high voltage 7 14 charging battery 2 1 chassis opening 5 3 checklist defibrillator 3 33 circuit board CRT deflection 7 20 ECG front end 7 17 battery connector 7 13 control 7 2 high voltage 7 13 high voltage board 7 4 pacer 7 23 recorder interface 7 29 cleaning 3 31 cleaning materials 3 31 clearing the system error log 4 9 coil cords 7 16 compartment door battery 2 2 configuration settings 2 16 setup menu 2 16 setup menu display 2 16 configuration and setup 2 16 2 24 configuration settings 2 19 changing 2 22 displaying printing 2 19 lost 2 22 setup menu 1 2 23 setup menu 2 2 24 configuring default monitoring source 2 10 keypanel board for model 5 7 set date and time 2 1 settings 2 1 connecting patient cable 2 15 connector defibrillator 2 7 lock 2 11 2 12 control board 7 2 removing 5 14 default monitoring source configuring 2 10 defibrillator calibration 3 2 3 9 cart 1 2 cleaning 3 31 configuring 2 16 connector 2 7 descript
64. 50 mA 5 mA 50 mA to 200 mA 10 Rate 40 to 180 pulses per minute 1 at each setting Pacer Board PACSET Pacer Pacer Ret PACMES Current Measure lt lt Isolation Barrier M1722 46 Pacer Block Diagram Power Supply An isolated supply on the pacer board generates 5 and 12 V power F 5V and FVcc respectively to run the pacer electronics and the 120 V pacer voltage Vpace Pulse Control Pace pulse amplitude is set by a pulse width modulated signal from the System gate array The duty cycle for the PWM signal is 13 596 to 9096 corresponding to a pulse amplitude from 10 mA to 200 mA respectively The pulse train from the System gate array is 20 ms long When the pulse train starts it begins the current pulse When the pulse train ends the current pulse will end 7 23 Theory of Operation Sp0 Board Pacer Current Pacer current is measured and routed back to an A D converter internal to the Defibrillator processor Then delivered pacer current can be compared to the expected set current Patient Isolation The pacer is a patient connected device therefore adequate patient isolation must exist for pacer circuitry A high voltage isolation barrier is formed by a power transformer in the power supply and opto couplers in the pulse control and current measuring circuits SpO Board The arterial oxygen saturation measurement SpO is ba
65. 6 3 32 sync cardioversion test 3 26 system error log clearing 4 9 codes 4 6 interpreting 3 31 printing 3 31 system gate array 7 2 7 6 system log using 4 4 system monitoring QRS volume control 7 5 capacitor voltage 7 5 defibrillator status 7 6 pacer current 7 6 paddles identification 7 5 peak current 7 6 printhead resistance 7 5 printhead temperature 7 5 supply voltages 7 6 technical assistance 6 3 test defibrillator 3 11 test equipment required 4 3 test load 3 32 test pattern CRT 5 29 recorder 3 18 3 19 test with external monitor sync cardioversion 3 32 tests CRT 3 16 ECG Monitor Test 3 14 battery capacity 3 28 controls 3 19 indicator 3 21 pacer 3 23 power supply 4 21 recorder 3 18 safety 3 28 troubleshooting 4 1 4 21 setup diagnostic tests using 4 2 troubleshooting tables 4 10 4 20 audible indicators 4 10 display and logic 4 18 keypanel 4 18 on screen defibrillator monitor messages 4 11 on screen pacer messages 4 13 on screen system messages 4 11 operation problem messages 4 15 power supply and battery 4 15 printed failure messages 4 14 recorder 4 16 verification after repair 4 2 vertical deflection 7 22 vertical sync 7 22 video half and full bright 7 22 visual inspection 3 8 voltages power supply 4 21 vi Index
66. 61651 14b Sp0 to keyboard cable M1722 61652 14c Tie locks set of 5 5180 2105 14d Insulator mylar not shown M1722 87913 15 AC input receptacle M1722 61607 16 High Voltage Assembly M1722A B M1723AJB See Table 6 6 16a Screw M3 x 10 qty 4 0515 0374 17 Plug Securing Battery connector M1722 47241 18 Patient Relay Assembly See Table 6 6 19 Front End PCA M1722A B M1723A B M1722 60120 19a Cable Front End Control 1722 61611 20 Receptacle assembly paddle includes 14 14d M1722 61626 20a Pad qty 3 M1722 47237 20b Cable paddle receptacle not shown M1722 61620 20c Receptacle body not shown M1722 47204 6 12 Table 6 3 Bottom Case Parts List Parts Lists Calling for Assistance dd Description Part No 20d Screw tapping 2 28 not shown 0624 0612 21 Ground lug not shown 1251 5964 21a Washer flat not shown 78620 00849 21b Nut hex qty 2 not shown 0590 0565 21c Washer lock not shown 2190 0084 6 13 Parts Lists Calling for Assistance Figure 6 5 NN e D Battery Door Assembly Table 6 4 Battery Door Assembly Parts List Ref mm No Description Part No 1 Battery door assembly white M1722A 1723 includes items numbered 1722 62720 2 through 7 Battery door assembly yellow M1722B M1723B includes items numbered 1722 62790 2 through 7 2 Fastener 1 4 turn qty 2 1390 1004 3 Spring qty 2 146
67. 722 61604 M1722 60195 7 Rotary Switch M1722 61900 The keypad may include more keys than the instrument allows Cut out all unnecessary keys The cut should be made to leave a hole in place of the key This Keypanel PCA is used in both the M1722 and M1723 To use this keypanel in the M1723A B you must first cut a trace on the circuit board See Removing and Disassembling the Keypanel Assembly on page 5 7 for detailed informa tion 6 17 Figure 6 7 Table 6 6 Parts Lists Calling for Assistance Part No High Voltage Assembly High Voltage Assembly Parts List Description Part No 1 HV Capacitor Retainer M1722 67304 2 HV Capacitor M1722 82801 3 HV Retainer M1722 47305 4 High Voltage PCA includes battery board M1722 60110 4a Fuse 25A 32V 2110 0250 5 Inductor M1722 82800 6 Inductor Retainer M1722 47306 7 Patient Relay Assembly includes patient relay and bracket M1722 62805 Relay Patient M1722 82806 Relay Bracket M1722 01205 7a Screw M3x16 qty 1 0515 0375 Table 6 6 Figure 6 8 Table 6 7 High Voltage Assembly Parts List Ref Parts Lists Calling for Assistance No Description Part No 8 9 Screw M3 x 10 qty 4 0515 0374 10 Stand offs qty 4 M1722 47227 CRT Assembly CRT Assembly Parts List Ref me No Description Part No CRT Assembly M1722A B M1723A B includes items 1 through 8
68. 722B Defibrillator The theory describes at a high level the functional operation of the major electronic assemblies listed below that make up the defibrillator Control board Power supply High voltage board Patient circuit ECG front end board CRT module Pacer board SpO board Main keypanel board Pacer keypanel board Recorder module These are the primary field replaceable assemblies For a complete listing of repair parts available for field repair refer to Chapter 6 Parts Lists Circuit References Components are usually referred to by the component s function such as the Defibrillator processor References more specific than that are to individual diagrams that accompany the text 7 1 Theory of Operation Control Board With a few exceptions the only signal names used in this theory description are those that pass between the boards Appendix A provides signal descriptions for each connector Some signal names are prefixed with a letter that indicates what kind of signal it is While this is not always true you can usually assume the following c Connector Signals These have been conditioned for EMI purposes f Filtered Signals These signals have been low pass filtered to minimize the high frequency components that they would otherwise contain n Active Low p Pulsed signals except for clocks which usually have clk embedded in their names Control Board
69. 8 Recorder Interface Board ee ei eie eet or ete pe bie cer vie ehe 7 29 Keypanel Boards nepote pe PRU Dee melee 7 29 Defibrillator Pacer Patient Connections ccccccccessececsscecesececescecesceecesaeceseaceeesaeeesesueecsececessueeceeessesseeesneeenenees 7 30 Standard External Paddles he ee eene OPI IEEE 7 30 Internal Paddles a deris ire e eta she ie e een hoes 7 30 External Adhesive Pads 4 o ei eee e b tene etu edd e 7 30 Appendix A Connector Pin Assignments Control Board Connectors iei ee ed n e ee ee doe d tete de d vede het A 3 Front End Board eie eroi e E Ee IRI IRE IE e E idee ders A 20 ECG Out Connector eere Ee Go e d te t teret E EUR Itu eue eed eee A 25 ORS Volum Control es Sein ttn ecules leche ii ned dea cee hele ee a eee A 25 xi Contents Defibrillator Connector A 25 Keypane Boards e REO UCET GE OE Uem ru A 27 Pacer Keypanel Board reU edge est A 28 Boardi eee sheers cote ier edes dasa A A edet A 28 Power Supply Board eto dep teen ee getestet pA ee A 29 High Voltage Board ER CHER Ur AREE ici Re eee RP LEES A 32 Patient Inductor zie nte PRETEREA REESE REPERIO EFE ET UO ERE seen A 34 CRT Deflection Boards css eis ii tte a eee edite eite eee GRASS tava eee ania A 34 SPOs Board T M A 37 Recorder Interface Board eie UT
70. 83 See Table 1 9 and Table 1 10 for part numbers CodeMaster AC input 100 to 230 VAC 15 50 to 60 Hz See Table 1 10 for part numbers Table 1 9 Codemaster XL M1722B Documentation Part Numbers Country User Guide User Card Pacer Card Checkcard 500 Concept 5 0 Sensor Part Number Part Number Part Number Part Number Guide Guide English M1722 94980 M1722 92908 M1722 93900 M1722 93920 M1722 93950 M1722 93970 French M1722 94981 M1722 92918 M1722 93901 M1722 93921 M1722 93951 M1722 93971 German M1722 94982 M1722 92928 M1722 93902 M1722 93922 M1722 93952 M1722 93972 Dutch M1722 92983 M1722 92938 M1722 93903 M1722 93923 M1722 93953 M1722 93973 Spanish M1722 94984 M1722 92948 M1722 93904 M1722 93924 M1722 93954 M1722 93974 Italian M1722 94985 M1722 92958 M1722 93905 M1722 93925 M1722 93955 M1722 93975 Swedish M1722 94986 M1722 92968 M1722 93906 M1722 93926 M1722 93956 M1722 93976 1 9 Introduction Options and Accessories Table 1 9 Codemaster XL M1722B Documentation Part Numbers User Guide User Card Pacer Card Checkcard 5 0 Concept 5 0 Sensor y Part Number Part Number Part Number Part Number Guide Guide Japanese M1722 94987 M1722 92978 M1722 93907 M1722 93927 M1722 93957 M1722 93977 Norwegian M1722 94988 M1722 92919 M1722 93908 M1722 93928 M1722 93958 M1722 93978 Finnish M1722 94989 M1722 92920 M1722 93909 M1722 93929 M1722 93959 M1722 93979 Danish M1722 94990 M1722 92921 M1722 93
71. 910 M1722 93930 M1722 93960 M1722 93980 Table 1 10 CodeMaster XL M1722B Shock Advisory Documentation Country User s Guide Concept Guide Part Number Part Number English M1722 94960 M1722 94940 French M1722 94961 M1722 94941 German M1722 94962 M1722 94942 Dutch M1722 94963 M1722 94943 Spanish M1722 94964 M1722 94944 Italian M1722 94965 M1722 94945 Swedish M1722 94966 M1722 94946 Japanese M1722 94967 M1722 94947 Norwegian M1722 94968 M1722 94948 Finnish M1722 94969 M1722 94949 Danish M1722 94970 M1722 94950 Table 1 11 Power Cord Part Numbers Power Cord Key HP Part Number 900 8120 1351 901 8120 1369 902 8120 1689 903 8120 1378 906 8120 2104 912 8120 3997 917 8120 4211 1 10 Pacing Option A01 Plus Package Paddle set with PCI 5 Lead ECG capability Configurable heart rate alarms Event review C02 Option Add Pacing SpO Option C62 C73 C74 Add SpO SpO adult finger tip sensor reusable M1190A Adaptor cable for Nellcor sensors M1900B Paddles and Pad Options C13 14 15 C16 C17 C18 C20 C21 C24 C25 C26 C27 C28 C29 Delete Standard Ant Ant Paddles Add Internal Paddle Adapter Cable Add 7 5 cm Internal Paddles switchless Add 6 0 cm Internal Paddles switchless Add 4 5 cm Internal Paddles switchless Add 2 8 cm Internal Paddles switchless Add Adhesive Pads Adapter Add Adhesive Pads Add Sterilizable External Paddle Set Add Paddle Contact Indica
72. ARD BLK LOAD RES RED HV Ie RED STERNUM J wer aces Rr RED WHITE WHITE TO RED BLACK PACER BOARD WHITE TO PADDLES CONNECTOR PACER BOARD HIGH VOLTAGE INDUCTOR HIGH VOLTAGE CAPACITOR High Voltage Connection Diagram schematic 5 26 TO BOARD Removal and Replacement Adjusting the CRT Adjusting the CRT There are five CRT adjustments that can be performed These adjust the intensity vertical size vertical position horizontal focus and rotational position of the display Perform the following steps to adjust the CRT 1 Perform the procedures Removing the Battery and Opening the Defibrillator Chas sis However leave all front panel cables connected except for the optional pacer key board cable WARNING Dangerous voltages are exposed when performing this procedure Be certain not to touch the circuitry wiring or components while performing this procedure This procedure is to be performed only by qualified service personnel 2 Be certain that AC power is removed from the defibrillator Lift the base of the chassis up and reinstall the battery Install and secure the battery door 3 While pressing the and keys turn the Energy Select switch to Mon itor On 4 Press the ECG Size key to select TEST CRT the screen Then press the Lead Select key The CRT test display is shown on the screen 5
73. ATUS DSP STATUS Lets you select the ECG source Current power line filtering frequency 50 or 60 Hz you can change the filtering and turn the filter off and on GOOD indicates that communication between the Leads Front End and DSP is acceptable GOOD indicates that communication between the paddles Front End and DSP is acceptable GOOD indicates that the DSP is communicating properly with the monitor 3 15 NOTE Performance Verification and Maintenance Performance Verification DC OFFSET An offset value used when measuring Leads Off Largest absolute value offset of any wire used in lead combination according to the lead selected mV PEAK TO PEAK Peak to peak signal of the SELECTED LEAD measured DIAGNOSTIC over a one second interval Results are given for both MON MONITOR ITOR 0 5Hz to 40 Hz and DIAGNOSTIC 0 05Hz to 150 Hz bandwidth PCI Paddles impedance measured in ohms Used to determine PADDLES OFF and for PCI paddles contact indicator bar graph on sternum paddle Patient imped ance can be calibrated See PCI Calibration on page 3 16 for instructions PCI ON indicates that displayed data is calibrated PCI OFF indicates that displayed data is not calibrated 2 Checkthat LEADS STATUS is GOOD 3 Checkthat PADDLES STATUS is GOOD 4 Checkthat DSP STATUS is GOOD PCI Calibration PCI calibration should be performed whenever setup is lost o
74. Adapter Cables for Defibrillator Connector Description Application EXTERNAL PADDLES 0 8 M Integrated cable paddles set Standard with instrument CodeMaster XL with PCI Option A01 M1746A B CodeMaster XL without PCI 1747 INTERNAL PADDLES D Internal paddles adapter cable 1740 Switchless internal paddle set 7 5 cm M1741A 6 0 cm M1742A 4 5 cm M1743A 2 8 cm M1744A Switched internal paddle set 7 5 cm M1784A 6 0 cm M1785A 4 5 cm M1786A 2 8 cm M1787A EXTERNAL ADHESIVE PADS 0 8 Pads adapter cable 1750 Adult multifunction pads M3501A Adult multifunction pads IEC M3502A Pediatric multifunction pads IEC M3503A Pediatric multifunction pads AAMI M3504A Parts numbered with an A and B suffix are identical except that a part ordered has a different colored connector A Parchment White B Yellow Application key D Defibrillation S Synchronized cardioversion M Monitoring P Pacing You may configure the instrument to make PADDLES PADS the default monitoring source at power on This choice is available in setup menu 2 See Configuration on page 2 16 Connecting Paddles or Pads To connect external paddles internal paddles or adhesive pads to the defibrillator perform the following steps 1 Slide the paddle connector lock on the paddles plug to the unlock position To do this push the lock in the direction shown by the arrow i
75. B M1722 69503 M1722 69613 Keypanel assembly without Sp0 Spanish M1722A B M1722 69504 M1722 69614 Keypanel assembly without Sp0 Italian M1722A B M1722 69505 M1722 69615 Keypanel assembly without Sp0 Swedish M1722A B M1722 69506 M1722 69616 Keypanel assembly without Sp0 Japanese 1722 M1722 69507 M1722 69617 6 4 Parts Lists Calling for Assistance Table 6 1 Top Case Parts List Description Part No 1 Keypanel assembly without Sp0 Norwegian M1722A B M1722 69508 M1722 69618 Keypanel assembly without Sp0 Finnish M1722A B M1722 69509 M1722 69619 Keypanel assembly without Sp0 Danish M1722A B M1722 69510 M1722 69620 1 Keypanel assembly with Sp0 English M1722A B M1722 69650 M1722 69630 Keypanel assembly with Sp0 French M1722A B M1722 69651 M1722 69631 Keypanel assembly with Sp0 German 1722 M1722 69652 M1722 69632 Keypanel assembly with Sp0 Dutch M1722AJB M1722 69653 M1722 69633 Keypanel assembly with Sp0 Spanish M1722A B M1722 69654 M1722 69634 Keypanel assembly with 8 0 Italian M1722A B M1722 69655 M1722 69635 Keypanel assembly with Sp0 Swedish M1722A B M1722 69656 M1722 69636 Keypanel assembly with Sp0 Japanese M1722A B M1722 69657 M1722 69637 Keypanel assembly with Sp0 Norwegian M1722A B M1722 69658 M1722 69638 Keypanel assem
76. ECT SYNC MARK t ECG SIZE s HR ALARM 1 REVIEW 1 PACER SPO2 ON OFF PACER ON SPO2 ALARM t RATE s START STOP MODE t OUTPUT s V TURN OFF TO EXIT DIAGNOSTIC J NOTE Controls Test The pacer information is displayed only if the pacer option is installed 2 Check that the entry for PADDLE TYPE matches the type that is attached paddles pads or internal paddles If you disconnect the paddles cable the entry changes to NONE 3 Turn the Energy Select control to each energy level position checking that the entry for Energy Select on the display matches the current control position 4 Under PRESSED KEYS ARE HIGHLIGHTED press each key listed Simulta neously check that the key name in the display is highlighted while the key is 3 20 Table 3 4 Performance Verification and Maintenance Performance Verification depressed Highlighting indicates that the defibrillator has detected the key press See Table 3 4 for a list of keys and the response you should see on the monitor display Controls Test Steps Key Key Press Paddles Charge Press the Charge button on the side of the right external paddle Response on Display PADDLES PADS or INTER NAL PADDLES is highlighted Press the panel key CHARGE is highlighted Sync Press the panel key n YNC is highlighted Press the panel key RECORD is highlighted Press the panel key
77. G Monitor Test 3 14 ECG amplification 7 9 ECG front end 7 17 cal pulse 7 19 data communication 7 19 isolated power supplies 7 18 ECG front end board 7 17 removing 5 17 ECG gain accuracy checking 3 26 ECG simulator 3 26 testing with 3 26 EMS 4 5 F Feature 4 5 I peak measurement 7 9 P PRINT LOG 2 18 3 31 4 4 Pace 4 5 Q QRS Volume control circuit operation 7 5 R RESTORE FACTORY SETTINGS 2 18 S ETUP LOST message 2 22 3 2 3 9 SETUP MENU 1 2 18 SETUP MENU 2 2 18 SPO2 CABLE OFF 4 14 SPO2 FAILURE 4 14 SPO2 LIGHT INTERF 4 14 SPO2 LOW SIGNAL 4 14 SPO2 NOISY SIGNAL 4 14 n SPO2 SENSOR FAIL 4 14 SpO testing 3 25 SpO board removing 5 12 replacement 5 14 SpO test 3 25 T TEST BATTERY 2 18 TEST CONTROLS 2 18 TEST CRT 2 18 TEST DEFIB 2 18 TEST ECG 2 18 TEST INDICATORS 2 18 TEST PACER 2 18 TEST RECORDER 2 18 V VDC 7 11 X XL options documentation 1 9 2 accessories cart 1 13 standard supplied 1 13 accessories list 1 13 adjusting the CRT 5 27 apex paddle shock key 7 5 7 30 assistance 1 3 audible indicators 4 10 battery charger circuit description 7 12 charging 2 1 compartment 2 2 compartment door 2 2 connecting polarized plug 2 3 connector 2 2 fuse 7 13 fuse replacement 5 36 Index i Index installing 2 1 plug 2 2 problems 4 15 removing 5 2 replacing 2 1 battery capacity test 3 28 3
78. LOW Bad connection to patient or patient has poor Check the patient for poor perfusion SIGNAL perfusion Reapply disposable and semi dispos able sensors Readjust reusahle sensors Consider using a different sensor site Printed Failure Messages Message Possible Solutions TEST 1007 FAILI 5 Jg Defib test failure delivered energy check failed or the Shock Path Redundancy test failed Print Error Log and troubleshoot per error code Wait 2 to 3 seconds after Power On to press the Charge button This will allow the Power On s subroutine test to complete and identify the paddles in their cradles Perform PCI Calibration The external paddle sets are not recognized in the side pocket by the unit Seat the paddle sets firmly Bend out the bracket in the side pocket to improve con tact Replace the adult adaptor Swap the adult adaptor between the Apex and Sternum paddle Use an abrasive eraser to clean the contact surface of the adult adaptor and the bracket in the cradle 4 14 Table 4 8 Table 4 9 Troubleshooting Troubleshooting Tables Operation Problems Symptom Noisy lead s Muscle artifact Cause Patient is not relaxed or skin has been irritated Corrective Action Refer to user s guide Low quality disposable electrodes leadwire adapters Replace disposable electrodes or leadwire adapters Defective leadwires Isolate defective leadwires and replace them
79. M1723 69635 Keypanel assembly with Sp0 Japanese M1723AJB M1723 69607 M1723 69636 Keypanel assembly with Sp0 Norwegian M1723A B M1723 69608 M1723 69637 Keypanel assembly with Sp0 Finnish M1723A B M1723 69609 M1723 69638 Keypanel assembly with Sp0 Danish M1723A B M1723 69610 M1723 69639 2 Recorder assembly M1722A B M1723AJB M1722 69520 2a Cable recorder M1722 61618 6 5 Parts Lists Calling for Assistance Table 6 1 Top Case Parts List d Description Part No ise poe 2b Screw M3 x 16 qty 4 0515 0375 2c Printer Label kit M1722A B M1723A B M3500 69559 3 Bucket assembly gasket and bucket M1722 67460 3a Gasket Recorder Channel M1722 87906 4 Pacer keyboard M1722A B M1722 60185 4a Cable pacer keyboard M1722 61605 4b Screw M3 x 10 qty 4 Pacer to cover 0515 0374 5 Pacer keypad English M1722A B M1722 84410 Pacer keypad French M1722A B M1722 84411 Pacer keypad German M1722A B M1722 84412 Pacer keypad Dutch 1722 M1722 84413 Pacer keypad Spanish M1722A B M1722 84414 Pacer keypad Italian 1722 M1722 84415 Pacer keypad Swedish 1722 8 M1722 84416 Pacer keypad Japanese 1722 M1722 84417 Pacer keypad Norwegian 1722 M1722 84440 Pacer keypad Finnish M1722A B M1722 84441 Pacer keypad Danish 1722 M1722 84442 6 Bezel pacer white
80. NT LOG 2 18 RESTORE FACTORY SETTINGS 2 18 SETUP MENU 1 2 18 SETUP MENU 2 2 18 TEST BATTERY 2 18 TEST CONTROLS 2 18 TEST CRT 2 18 TEST DEFIB 2 18 TEST ECG 2 18 TEST INDICATORS 2 18 TEST PACER 2 18 TEST RECORDER 2 18 displaying 2 17 exiting 3 8 list of tests 3 6 printing the error log 3 31 setup diagnostic menu 1 default settings 2 20 setup diagnostic menu 2 default settings 2 21 setup diagnostic menu test CRT Test 3 16 Controls Test 3 19 Indicator Test 3 21 defibrillator calibration 3 9 defibrillator test 3 11 selecting 3 8 starting 3 8 stopping 3 8 setup diagnostic menu tests 3 6 3 31 ECG Monitor Test 3 14 Pacer Test 3 23 battery capacity test 3 28 recorder test 3 18 starting 3 6 test menu 3 7 setup diagnostic menus exiting 2 21 setup diagnostic test menus exiting 3 8 setup diagnostic tests using for troubleshooting 4 2 shock counter clearing 3 13 defined 3 13 shock key apex paddle 7 5 7 30 sternum paddle 7 5 7 30 shock operation 7 5 shutdown low battery 7 9 simulator ECG 3 26 testing with 3 26 specifications 1 3 1 6 battery 1 5 electrical 1 4 environmental 1 3 pacer 1 6 physical 1 3 power requirements 1 5 standards safety 3 28 sternum paddle shock key 7 5 7 30 supplies parts list 6 29 switch A circuit operation 7 12 control 7 8 sync cardioversion Index v Index testing with external monitor 3 2
81. R E rH E ORI eee ee eee ener etes od A 38 Battety Boatd i tmo Uca omen tete causes Up iba Ee eset trenes A 38 Battery Assembly iaceo ee t RD OR ER CORRER IEEE roS Tens Ees KEEK a E EE DRE ORE DEG A 39 HV Capacitors tete e Ee NI EE n e ER Ba het A 39 Patient Relay aieo PP ROO A 39 50 Ohm Load Assembly egenis eerte tte eet P es ere eee dried een A 40 40 AC Line Module RE a aa ahs tend ey eve dee A 40 Energy Select Swatch ier HR dono re cob tae leeds ette Petr pl Guten ab Pete ine ep A 40 xii WARNING CAUTION NOTE Introduction This chapter introduces the CodeMaster XL M1722B Defibrillator Monitor and lists the technical specifications Dangerous voltages capable of causing injury or death are present at the paddles or patient cables during normal operation This defibrillator is to be used and serviced only by qualified personnel Operation of this device in the vicinity of high powered transmitters or electrosurgical instruments may result in interference of the ECG display Safe and effective use of medical instrumentation requires periodic inspection and preventive maintenance Perform the preventive maintenance procedures in Chapter 3 Performance Verification and Maintenance of this manual at the required intervals to ensure satisfactory instrument performance The CodeMaster XL Defibrillator Monitor
82. RN OFF TO EXIT DIAGNOSTIC p Calibrate Defibrillator Screen Follow the instructions displayed on the screen If you set the Energy Select control to a level below 300 joules the message BAD USAGE SEE MANUAL is displayed 3 10 WARNING Performance Verification and Maintenance Performance Verification If the test completes successfully CALIBRATION PASSED is displayed at the bottom of the screen If the test fails CALIBRATION FAILED is displayed and the nominal capacitance value is used see Chapter 4 Troubleshooting and Table 4 13 for detailed troubleshooting information Defibrillator Test This test verifies defibrillator performance to specifications You should run the Defibrillator Calibration routine before performing the Defibrillator Test You can perform the defibrillator test using either external paddles or pads If using pads adapter M1750AJB connect an M1781A test load when performing the defibrillator test Test Prerequisites Connect the external paddles and place them firmly in their holders in the defibrillator or attach the M17814A test load if you are using the pads adapter cable The battery must be fully charged Testing the Defibrillator It is recommended that you test the defibrillator in the power configuration in which it is normally used battery only or AC power You should also test the disarm function as described at the end of the defibrillator test The test
83. TIME xx minutes BATTERY TIME xx minutes ec TURN OFF TO EXIT DIAGNOSTIC E Battery Capacity Test START VOLTAGE The battery voltage when the test started VOLTAGE NOW The battery voltage at the present time ELAPSED TIME The elapsed time since the test started The time includes the LOW BATTERY TIME OW BATTERY TIME The length of time that the battery has been below the low battery warning level 7 When the battery voltages reaches a low level the Shutdown Warning tone sounds and the recorder prints out the final values of the displayed results just prior to turning off the instrument 8 Replace the battery if the recorded value for ELAPSED TIME is less than 150 minutes 2 5 hours or the value for elapsed LOW BATTERY TIME is less than 10 minutes 9 Turn the Energy Select control to the Off Standby position 10 Fully recharge the battery by plugging the instrument into AC power for 18 hours Ver ify that the AC POWER and BATT CHR lights are on 11 The instrument is now ready to be returned to service 3 30 NOTE CAUTION Performance Verification and Maintenance Preventive Maintenance Printing the System Error Log When an error occurs during normal operation an error code associated with the error is stored in memory in the error log Selecting PRINT LOG in the setup diagnostic menu prints the stored error
84. TORS EST BATTERY EST PACER C TURN OFF TO EXIT DIAGNOSTIC x7 NOTE Setup Diagnostic Menu The pacer test is listed only if the pacer option is installed The dates appear only if the unit has already been calibrated and the configuration has been set up See Configuration on page 2 16 for detailed information The setup diagnostic menu lists the built in tests and other items With the panel keys you step through the menu items and select tests When you select a test the display changes to show test information Using the panel keys to select and start a test is described in Table 3 2 These two keys select and initiate a test Moves the highlight bar down or up depending on whether you press the left or right side of the key Lead Select Selects the menu item that is highlighted 3 7 Table 3 2 Performance Verification and Maintenance Performance Verification Performing a Setup Diagnostic Test Description Process Highlight the setup diagnostic menu test Press v ECG Size to highlight the test name in the menu Select the test Press Lead Select For some tests the test that you selected then starts running and repeats until you stop it For other tests the display changes to show test patterns or other test information Perform the test Follow the instructions in this chapter for the test you selected To stop a test o
85. Table H 19 for pin assignment In addition the TO STERNUM point on the assembly connects to the sternum paddle pocket the TO APEX point on the assembly connects to the apex paddle pocket ECG In Connector The ECG In connector connects to J1 on the front end board See Table H 16 for pin assignments AC Line Module The AC line module connects to J1 on the power supply board See Table H 27 for pin assignments In addition the GROUND connection on the AC line module goes through a green yellow wire to the IEC ground lug Energy Select Switch The Energy Select switch connects to J2 on the keypanel board See Table H 22 for pin assignments A 40 Appendix A Connector Pin Assignments Energy Select Switch A 41 Index Numerics 3 wire patient cable 2 14 5 wire patient cable 2 14 A Auto 4 5 C CALIBRATE DEFIB 2 17 CRT adjustments 5 27 control signals 7 21 horizontal sync 7 22 removing 5 11 specifications 7 21 test 3 16 test pattern 5 29 vertical sync 7 22 video 7 22 CRT assembly disassembling 5 11 parts list 6 19 removing 5 11 CRT deflection board circuit description 7 20 removing 5 11 CRT deflection yoke adjusting 5 28 CRT recorder gate array 7 2 7 7 7 29 Charge key front panel 7 4 paddles 7 4 7 30 CodeMaster models colors 6 2 list of 6 1 Controls Test 3 19 E ECG Input connecting 2 15 ECG Input connector options 2 13 uses 2 13 EC
86. The control board provides the processing power to run the defibrillator and supplies a central interconnect for other parts of the instrument Three processors are supported on the control board an 80960KA the Monitor processor a uPD77C25 Digital Signal processor DSP and an 80C196KC the Defibrillator processor These processors are connected to one another and to peripheral devices through two CMOS gate arrays the System gate array and the CRT Recorder gate array Figure 7 1 shows the functional groupings and their basic interconnections Figure 7 1 Power Supply Interface CRT Module Interface Recorder Interface Paddles Interface QRS Volume l Peak Transformer Interface Pacer Keypanel Interface Theory of Operation Control Board Control Board Power Supply Interface Monitor Processor CRT Recorder Gate Array Defib Processor Spo Interface System Gate Array J9 ECG Amplifier Beeper Filter Amplifier ECG J2 Front End Interface J6 J1 High Voltage Main Pacer Board Interface Keypanel Control Panel Interface Interface Control Board Block Diagram M1722 43 The control board performs a variety of individual functions that fall into three maj
87. Vertical 2 aec logos ena eee Manas 7 22 Horizontal Detlection AER 7 22 Vadeo citet eta inmane 7 22 Pacer Board e IR uu dedi n nde 7 23 Power Supply EE 7 23 Pulse Control esegue nee ee RM eae nda HI e eine ancients 7 23 Pacer Curent one US Eat en ata Rs tcm E 7 24 Patient solation sss ee tn a aed ee Ae a iive 7 24 SPO Board cust uer A AR ie Rn UR ae EA RR LS RE 7 24 Floating seuss Ha Some Mee ers teet RU ro ens 7 25 Photo Amplifiet i ere Du ee oh alates npe 7 26 Excessive Light Detection et ert eer efie tede ee etos niei es 7 26 Ambient Light Rejection e e terit ete drei Peer 7 26 Amplification een eei egerat ca te m eic o e e Ie p ers eee 7 26 Phase Separation Dark Subtract nennen 7 26 Multiplexers ice cacao eek ca satan eg Seen oes ANE ee i MI PR ON UI ite ee 7 27 Pbi 7 27 LED Drivers see he Races ee ATA A E E 7 27 Grounded nate es ieee NS pai tins SS ee eS 7 28 Microprocessor System n rt eerte pe Ete eee sb Dei e Pere eee e e Pope eet Pert pb DERE 7 28 Corimunic tion ense es a eee an ee GAA enden ime 7 28 Iove 7 28 Patient Isolation sae ere eH Ee Anes 7 2
88. able the Pace Pulse Marker press Sync HR Alarm and simultaneously while in Setup Menu 1 To determine if this feature is enabled print out the system log See The System Log on page 4 4 for an explanation of the system log Table 2 6 Configuration Settings Setup Menu 2 Configuration Item Recorder Delay Setting Choices 6 S Delay or No Delay Comments Recorded ECG is delayed 6 seconds after event or starts printing immediately Recorder BW Diagnostic or Monitor Diagnostic Fre Selects the bandwidth of recorder printout For DIAGNOSTIC fre quency Response is only available when monitoring with leads quency response is from 0 05 to 150 Hz for MONITOR from 0 5 to 40 Hz Advisory Energy Energy Select 200 200 360 or Select control from Off Standby to the desired level 200 300 360 Record on Mark On or Off ENTER Et For ON the recorder prints when is pressed Record on Charge On or Off For ON the recorder prints when is pressed Record on Shock On or Off For ON the recorder prints following a discharge Record on Arms enirn For ON the recorder prints when a heart rate or 5 0 alarm violation occurs Post Shock Data Off or On For ON recorder prints the delivered actual energy statistics For OFF recorder prints the Energy Select control setting Power On Lead Paddles Lead Il or Ill Selects the default ECG monitoring source at power on
89. acing the Battery Fuse Replacing the Battery Fuse The battery fuse is located on the battery connector board beneath the power supply and just above the high voltage charger board To change the battery fuse perform the following procedures and steps 1 Perform the procedures Removing the Battery and Opening the Defibrillator Chas sis 2 Perform the procedure Removing the Power Supply Assembly 3 The battery connector board is located behind the CRT and is held in place by a rubber plug and two plastic clips Remove the rubber plug and then pressing the retaining clip forward lift the board out See Figure 5 20 Figure 5 20 Removal and Replacement Replacing the Battery Fuse M1722 23 Replacing the Battery Fuse A Battery connector board with CRT assembly removed 4 Replace the battery fuse only with a 32 volt 25 ampere fuse part number 2110 0250 5 Reinstall the battery connector board and the rubber plug Be sure that board is held securely in place 6 Reinstall the power supply assembly 7 Reinstall all cables removed and install the chassis top cover 8 Install the six screws that secure the chassis 9 Reinstall the lower battery and battery cover Removal and Replacement Verifying Operation After Service Verifying Operation After Service See Chapter 3 Performance V
90. addles The next three figures show these paddles and pads M1722 04 External Paddle Set A Adult Pediatric Anterior Anterior paddle set M1746A B M1747A B B Standard external adult paddle M1746 62802 C Adult adaptor release latch The standard external paddles set also includes pediatric paddles To expose the pediatric paddle set depress the release latch at the front of a paddle while pulling forward on the adult paddle surface This will remove the adult paddle contact surface and uncover the smaller pediatric contact surface Setup and Configuration Setup Figure 2 5 M1722 05 Pads Adapter Cable and External Adhesive Pads A Pads adapter cable 9 ft in length HP M1750A B This cable is not compatible with the internal paddles set shown in Figure 2 6 B External adhesive pads M3501A adult AAMI M3502A adult IEC M3503A pediatric IEC M3504A pediatric AAMI Setup and Configuration Setup Figure 2 6 M1722 06 Internal Paddles A Internal paddles adapter cable 1 ft in length M1740A B B Internal paddle set M1741A M1742A M1743A M1744A 2 9 Table 2 1 Setup and Configuration Setup Table 2 1 lists the paddles sets adapter cables and their part numbers Paddles Pads Sets
91. ameter Function Tests ECG Simulation Taking an ECG using a 12 lead ECG simulator lets you verify areas of operation that the setup diagnostic menu tests cannot test the integrity of the leadwires the accuracy of the gain settings To simulate an ECG use a commercially available ECG simulator Follow the testing instructions provided with the simulator Parameter Function Tests Sync Cardioversion Test with External Monitor The sync cardioversion test should be performed only if the defibrillator will be used with an external monitor as the synchronizing source The test verifies that the delay introduced by the external monitor is 60 ms of the R wave detected Using an external monitor as the synchronizing source adds some amount of delay between the patient R wave and defibrillator discharge This test verifies that the total delay is within acceptable limits 60ms To test sync cardioversion with an external monitor follow this procedure 1 Use a defibrillator test box capable of measuring synchronized cardioversion delay time 2 Connect a patient cable between the defibrillator test box and the external monitor See Figure 3 10 3 26 Figure 3 10 Defibrillator Test Box Performance Verification and Maintenance Performance Verification ECG Input External Monitor Patient Cable Monitor Defibrillator Sync Out Defibrillator Monitor hee Sync Cable Adaptor
92. and Maintenance Performance Verification To test the defibrillator indicators follow these steps 1 Select TEST INDICATORS on the setup diagnostic menu the defibrillator displays the information in Figure 3 8 IGHTS INDICATOR TI ECORDER STATUS OKAY SELECT INDICATOR TO TEST RT MESSAGE ALERT EART RATE ALAR HARGE DONE TONE Qpomuaonutc UTO DISARM WARNING HUTDOWN WARNING TURN OFF TO EXIT DIAGNOSTIC P EST N Indicators Test 2 Check that the entry for RECORDER STATUS is OKAY If the recorder is out of paper the entry is CHEC 3 The items under S K EL ECT INDICATOR TO TI EST are tests for the lights and audible keys to select and start a test To stop tones Use the w ECG SizeA and Lead Select one of these tests press Lead Select again Each test is described next LIGHTS CRT MESSAGE ALERT HEART RATE ALARM 3 22 Sequentially lights the Sync the key panel CHARGE DONE the pacer Pacer On and the paddle CHARGE DONE indicators for about one second each If the unit has PCI indicators they are lit w hile the LIGHTS test is running Generates the CRT Alert tone three short tones after a pause the tones repeat Generates a continuous tone Performance Verification and Maintenance Performance Verification CHARGE
93. and the keypad assembly 3 Remove the four screws that secure the keypad assembly Use a T10 screwdriver To install the pacer keypad assembly perform the procedure Removing the Pacer Keypad Assembly in reverse order 5 8 Figure 5 5 Removal and Replacement Removing the Pacer Board Removing the Pacer Board The pacer function is an option to the M1722B series Perform the following procedure to remove the pacer board 1 Perform the procedures Removing the Battery and Opening the Defibrillator Chas sis 2 The pacer board is located to the left rear of the chassis This board is positioned verti cally above the high voltage capacitor At the pacer board disconnect the seven pin cable assembly that runs between the pacer board and the control board J7 See Fig ure 5 5 1722 17 Removing the Pacer Board A Pacer board B Disconnect these cables Removal and Replacement Removing the Power Supply Assembly 3 Disconnect the red wire that runs from the patient relay under the control board to the jack on the pacer board Label this wire Plastic extrusions located on top of the high voltage capacitor case are available for stowing this wire when the pacer board is not installed 4 Disconnect the white wire that runs from the pacer board to the WHT PACER jack on the ECG front end board 5 The pacer board is not secured into place using screws Gently pull the pacer board up to rem
94. ard The pin assignments are the same on both connectors See Table H 13 for pin assignments Table H 37 lists connections on the SpO board 5 0 Board Connections Sp0 Board Via Cable Assembly Connects To Reference P1 M1722 61628 Control board J12 Table H 13 P2 M1722 61651 Front keypanel board Table H 23 P101 M1722 61651 Sp0 input connector Table H 38 Sp0 Board to Sp0 Input Connector Sp0 Board Sp02 Input Connector Pin Signal Pin Signal 1 SIGNAL 1 SIGNAL 2 FGND A FGND 3 REXT1 3 REXT1 4 REXT2 5 REXT2 5 LEDSENCE 6 LEDSENSE 6 LEDDR 7 LEDDR 7 FGND 2 FGND SIGNAL Received optical current FGND SpO isolated ground REXTI Cable coding resistor 1 REXT2 Cable coding resistor 2 LEDSENCE Detected current through LEDs LEDDR Drive current for LEDs A 37 Appendix A Connector Pin Assignments Recorder Interface Board Recorder Interface Board On the recorder interface board J1 connects to J13 on the control board The pin assignments are the same on both connectors See Table H 14 for pin assignments Battery Board Table H 39 lists connections on the battery board Table H 39 Battery Board Connections Battery Board Via Cable Assembly Connects To Reference plo M1722 60110 High voltage board Table H 31 J4 Battery assembly J1 Table H 40 Table H 40 Battery Board J4 to Battery Assembly J1 Pin Signal 1 BAT 2 3 BAT SLOW 4 BAT SENS 5
95. ation of the power supply 6 Re install the top cover 7 Check AC DC converter battery charger in the following steps a Remove the battery from the instrument b Connect AC power c From the diagnostic menu run the TEST BATTERY test d Observe VDC on the test screen by reading the voltage from the line labelled VOLTAGE NOW e Check that VDC 13 6 V 0 6 V This measurement must be made at room temperature 20 C to 25 C VDC is the battery charge voltage float voltage and is temperature compensated This measurement must be made with the battery removed as VDC is set by the condition of the battery 4 21 Troubleshooting Testing the Power Supply 4 22 Removal and Replacement Introduction This chapter provides procedures for removing and replacing these defibrillator assemblies The battery The recorder The keypanel assembly The pacer keypad assembly The CRT assembly and SpO board The pacer board The control board The power supply assembly The high voltage charger and relay assembly The high voltage capacitor The patient inductor The ECG front end board Replacing the lithium battery Replacing fuses This chapter also provides procedures for adjusting the CRT after maintenance 5 1 WARNING NOTE CAUTION WARNING Removal and Replacement Removing the Battery Dangerous voltages may be present on components and connections duri
96. ator operation and the battery capacity These tests are available in the setup diagnostic menu Defibrillator test ECG test CRT test Recorder test Controls test ndicators test Battery capacity test Pacer test Option installed The CRT test recorder test controls test and indicators test require visual verification of displayed or printed output For these tests visible failure symptoms appear in the displayed or printed test information or are shown by indicator operation For other tests you determine whether a test has failed by examining test results data shown on the display The setup diagnostic tests do not test the patient electrodes or the 3 or 5 wire patient cables You can test the patient electrodes and cables by recording an ECG from a patient or ECG simulator as described in Parameter Function Tests ECG Simulation on page 3 26 To access the setup diagnostic menu tests turn the Energy Select control to Monitor On while pressing the Sync and HR Alarm keys The following display appears 3 6 Figure 3 1 Performance Verification and Maintenance Setup Diagnostic Menu Tests SETUP DIAGNOSTIC MENU UN CALIBRATE DEFIB last calibration date SETUP MENU 1 last setup date ETUP ENU 2 S RESTORE FACTORY SETTINGS P RINT LOG EST DEFIB EST ECG EST CRT EST RECORDER EST CONTROLS EST INDICA
97. battery Install and secure the battery door 6 While pressing the and keys turn the Energy Select switch to Mon itor On 7 Press the key to select TEST DEFIB on the screen Then press the key The TEST DEFIB screen should now be displayed on the CRT 8 Locate the potentiometer R139 as shown in Figure 5 17 Figure 5 17 M1722rlb R139 Potentiometer A R139 Potentiometer B Lithium battery 9 Attach the paddle set to the defibrillator connector 10 Charge the defibrillator to 100 joules and discharge into the defibrillator test box Removal and Replacement Adjusting the Internal Delivered Energy Calibration 11 Read the impedance measurement on the TEST DEFIB screen Example section of TEST DEFIB screen DELIVERED ENERGY 100 IMPEDANCE 50 PEAK CURRENT 29 Adjust R139 clockwise if the displayed impedance is greater than 50 Ohms counter clockwise if the displayed impedance is less than 50 Ohms Repeat from step 10 until the impedance measurement reads 50 Ohms 12 Turn the Energy Select switch to Off Standby 13 Remove the battery from the bottom of the defibrillator 14 Reconnect the pacer keypanel cable assembly if present at the right most connector on the control board 15 Close the defibrillator chassis and install the six case screws Reinstall the battery 16 Turn the Energy Select switch to the 100 Joule position and perform a 100 Joule deliv ered
98. bly with Sp0 Finnish M1722A B M1722 69659 M1722 69639 Keypanel assembly with Sp0 Danish 1722 M1722 69660 M1722 69640 1 Keypanel assembly without Sp0 English M1723A B M1723 69510 M1723 69610 Keypanel assembly without Sp0 French M1723A B M1723 69511 M1723 69611 Keypanel assembly without Sp0 German M1723A B M1723 69512 M1723 69612 Keypanel assembly without Sp0 Dutch M1723A B M1723 69513 M1723 69613 Keypanel assembly without Sp0 Spanish M1723A B M1723 69514 M1723 69614 Keypanel assembly without Sp0 Italian M1723A B M1723 69515 M1723 69615 Keypanel assembly without Sp0 Swedish M1723A B M1723 69516 M1723 69616 Keypanel assembly without Sp0 Japanese M1723A B M1723 69517 M1723 69617 Keypanel assembly without Sp0 Norwegian M1723A B M1723 69518 M1723 69618 Keypanel assembly without Sp0 Finnish M1723A B M1723 69519 M1723 69619 Keypanel assembly without Sp0 Danish M1723A B M1723 69520 M1723 69620 1 Keypanel assembly with Sp0 English M1723A B M1723 69600 M1723 69620 Keypanel assembly with Sp0 French M1723A B M1723 69601 M1723 69630 Keypanel assembly with Sp0 German M1723A B M1723 69602 M1723 69631 Keypanel assembly with Sp0 Dutch M1723AJB M1723 69603 M1723 69632 Keypanel assembly with Sp0 Spanish M1723A B M1723 69604 M1723 69633 Keypanel assembly with Sp0 Italian M1723A B M1723 69605 M1723 69634 Keypanel assembly with Sp0 Swedish M1723A B M1723 69606
99. brillator Monitor The defibrillator is designed for long term reliability The modular design makes extensive use of VLSI and gate array technology The modular approach means less downtime for the user due to the quick field repair times inherent in the subassembly replacement philosophy of repair The built in menu driven tests efficiently aid in identifying faulty operation further speeding the repair process MTRO 00336L Cart The MTRO 00336L Cart provides mobility for the CodeMaster defibrillator The cart shell and drawers are constructed of a durable light weight polymer material that will not corrode rust or dent Built in hand grips and 5 inch non marring casters two with brakes provide easy maneuverability The cart surfaces are smooth and stain resistant with rounded corners Drawers can be removed without tools for thorough cleaning Table 1 1 CAUTION Table 1 2 Introduction Inquiries Inquiries For questions or comments regarding these instruments contact the nearest Sales Service Office or one of the Service Dispatch Centers Always identify the instrument by model number and serial number in all correspondence Sales and service offices are listed at the end of this manual Toll free numbers for Service Dispatch Centers are listed in Chapter 6 Parts Lists Specification Data The following tables list the technical specifications for the defibrillator and the mobile cart Physical Specificati
100. case labels Case bottom yellow M1722B M1723B M1722 69562 Requires case label set see Table 6 1 Includes feet battery compartment pad receptacle pads two plugs and Sp0 case labels Foot plastic qty 4 0403 0767 Pad Battery Compartment M1722 47213 5 0 Case Labels White English M1722 84553 5 0 Case Labels White International M1722 84554 5 0 Case Labels Yellow English M1722 84555 5 0 Case Labels Yellow International M1722 84556 Plug No Sp0 Yellow M1722 47103 Plug No Sp0 white M1724 47101 Ba Screw M4 x 10 qty 6 0515 0380 7 Battery assembly lead acid M1758A 6 11 Table 6 3 Parts Lists Calling for Assistance Bottom Case Parts List Ref No Description Part No 8 Battery door assembly white M1722A M1723A Requires case label set M1722 62720 see Table 6 1 Battery door assembly yellow M1722B M1723B Requires case label set 1722 62790 see Table 6 1 See Table 6 4 9 ECG In cable 6 pin M1722 61614 ECG In cable 8 pin M1722 61615 ECG In cable 12 pin M1722 61616 10 Label part of case label set See Table 6 1 11 ORS volume control assembly M1722 61910 Screw x 10 qty 2 0515 0374 12 Beeper M1722 61632 13 Cable ECG Out Sync M1722 61624 13a Ring nut 3 8 in not shown 0590 0856 13b Lockwasher 3 8 in not shown 2190 0579 14 Sp0 PCA M1722 60102 14a 5 0 Connector M1722
101. ce Test aaa O Ground wire Leakage Current Test bbb O Enclosure Leakage Current Test ccc o Patient Lead Leakage Current Test o To Ground dd o Between patient leads ee o With line voltage applied ff Enter the data to record in the format S aaa bbb ccc dd ee ff for example S 09 400 90 77 16 Performance Verification and Maintenance Performance Verification Checklist Note When recording test results separate tests by a semi colon For example V p C p DT 1300 100 50 30 3600 360 50 55 p E p 0 1 60 A p PT 40 99 F p S 09 400 90 7 7 16 Print out the system error log Store the printout with the defibrillator s permanent maintenance record Print out the setup menu settings Store the printout with the defibrillator s permanent maintenance record Comments CAUTION Troubleshooting Introduction This chapter provides information for localizing defibrillator monitor problems to the assembly level This troubleshooting information is designed for use with the defibrillator s setup diagnostic tests to efficiently repair the defibrillator with a minimum of equipment Maintenance Philosophy The repair philosophy for the defibrillator is assembly replacement Replaceable assemblies are identified in Chapter 6 Parts Lists Individual component replacement should not be attempted outside of an authorized HP repair facility Com
102. d This occurs between 50 mA 200 mA Pacer HR is below instransic HR Adjust Pacer HR at desired value Misplacement of pads Reposition the pads 3 Beeps Can not deliver pacing current Replace Pads Adapter Cable Can not pace Display messages Paddle Internal Paddle 4 20 WARNING CAUTION NOTE Troubleshooting Testing the Power Supply Testing the Power Supply Use this procedure to check the voltages produced by the power supply All the voltage measurements are made on the control board connector J12 and are taken with respect to ground When the defibrillator is connected to AC power there are dangerous voltages on the line module terminals Do not touch any of the exposed connectors The HV capacitor stores hazardous amounts of energy during AC and battery operation Be careful not to touch any of the exposed capacitor connections Make measurements on battery only Plug into AC power only if the battery is too low to operate the defibrillator 1 Remove the top cover as described in Chapter 5 Removal and Replacement Be very careful not to short test points to ground or to other pins This can result in defibrillator monitor failure 2 Locate connector J12 on the control board 3 Check that the voltage at pin 27 is 4 3V 0 4V 4 Check that the voltage at pin 29 is 5 1V 0 25V 5 Check that the voltage at pin 31 is 12V 0 6V The presence of these voltages confirm the proper oper
103. d and pleth The sequence of operation is software controlled The four phase sequence is described as follows 1 Dark phase The switch governing the dark capacitor C110 C111 is closed Switches governing the red infra red and pleth capacitors C112 C113 and C114 respectively 7 26 Theory of Operation 5 0 Board are open The dark capacitor is charged by the pulse resulting from the ambient light reading 2 Red phase The switch governing the Red capacitor is closed All other switches are open Capacitor Red is charged by the pulse resulting from the red LED reading The pulse received by amplifier U103B is equivalent to the value of ambient light red light minus ambient light 3 Infra red phase As 2 above but using the Infra Red capacitor 4 Pleth phase As 3 above Multiplexer A multiplexer U101 is used to switch signals into the A D converter The signals are 1 Received light signal 2 Rcodel 3 Rcode2 Rcode1 and Rcode2 are resistors in the transducer The voltage across these resistors is measured to determine that the transducer is properly connected and the type of transducer connected A D Converter A sixteen bit successive approximation A D converter is formed from a 16 bit DAC U114 a comparator U115 and a uP controller U252 LED Drivers The LEDs are driven by a controlled current source U110 The two functions provided by the LED driver are 1 The LEDs must be lit i
104. d range of 10uA Leakage current between patient leads within an expected range of 10uA Patient lead leakage current sink current with line voltage applied within an expected range of 20uA These tests should be part of your preventive maintenance program and should be performed after any corrective maintenance to assure continued compliance with the named standards To perform these tests use commercially available safety testers or analyzers designed specifically for this purpose Follow the manufacturer s operating instructions for hookup and test procedures Preventive Maintenance Preventive maintenance for the defibrillator is a superset of performance verification and consists of the battery capacity test printing the system error log cleaning and inspection followed by routine maintenance and or troubleshooting The defibrillator does not require any kind of lubrication Lubricating any part of the defibrillator could damage it or diminish its performance Battery Capacity Test The battery capacity test measures the current battery capacity The battery capacity test should be performed after any of the following After installing a new battery 3 28 Performance Verification and Maintenance Preventive Maintenance After six months of service more often if defibrillator use frequently depletes the battery without allowing time for full charge cycles After the defibrillator has be
105. d eise ee bete e EP eee death 7 9 tate cu x amp 7 10 Power pz icu RUEDAS EON ERU RR NR 7 10 Power Down iue Pete pibe teh dp iubes 7 10 Power Supply 4 enn DIO edite epp edendi 7 11 AC DC Converters e Boe DUE Eit au deb m ee NA Ree tus 7 11 Battery Charger iere ERE DUE NUR IER RERO NER utu E tees 7 12 eene eee pudeat 7 12 High V oltapesB 0 ard pte pae ede od tente d eti denies 7 13 Battery COmmector iue ee eee RP ede mde durer eate tte 7 13 safety Relay Driver io egeo Una ed ee cosi ete IRI Siete AN teet dea 7 14 Patient Relay DriVe ii inh RETO ERE REFORM EIE URGERE TUR RR EEE 7 14 Contents High Voltage Charger eee e chases cas am c e etre recibe eii tace aive vto Case coe 7 14 Patient ei etam enm Pci EE US 7 15 ECG Front End Boatd edenda eere Eat eese bee e ie ete ile dis 7 17 Power ese tese E ED ERU UE tas 7 18 Leads Inp t Protection Ge as eee Sh Ree peeled te neige 7 19 Paddles Inp t Protection ute e Ete eet tr eripere cete Inde tease Arp 7 19 Cal Pulse onte eei neikes m ntum 7 19 Data Communication SI m uana OE 7 19 Pre Discharge Impedance et edet He ite ie elite ife seen 7 19 Paddl s in Pocket EIE 7 19 CRT Deflection Board erdt d b e eR ette ee ed EERE ean Se eae rre aR 7 20
106. dicators oe peti rr e RI o reb ertet dire drei E pde 3 21 Pacer Test Option installed eR TUER eU ERO REESE REDEEM 3 23 Test Prerequisites te ette tt Sheet etes res need A e ER eee 3 23 Testing the heredi edet ae Feeder ieu e Eod Yt ito eee 3 23 Parameter Function Tests SpO Test nennen 3 25 SpOs Internal SEH Test sei eet teet euenit dhe 3 25 Spa Funcional E 3 25 Parameter Function Tests HR Alarm Test eene eren nennen nennen enne 3 26 Parameter Function Tests ECG Simulation eese ener nen nennen nnne 3 26 Parameter Function Tests Sync Cardioversion Test with External Monitor esee 3 26 Safety TESTS M 3 28 Preventive Maintenance eR Sea p estere te Re pe ERR ele ae 3 28 Battery Capacity Test efecto m RR E 3 28 Testing the Battery Capacity o oue enm deeem baden 3 29 Printing the System Error Lo eot Hir et 3 31 Care ands Cleanimg Oe Ee em lieet iode aei Diei vtta e oton eee 3 31 Equipment 5 ante eet tenc ee Ep ehe and m Ep Rp 3 32 Performance Verification Checklist te peu de ep dete 3 33 Visual Inspection eire detto eere e e ee ro
107. e CRT assembly perform the following procedures and steps WARNING Be sure to wear safety glasses while performing the following step Accidental e implosion of the CRT can cause injury 5 11 WARNING Removal and Replacement Removing the CRT Assembly and Sp0 Board 1 Perform the procedures Removing the Battery and Opening the Defibrillator Chas sis 2 Perform the procedure Removing the Power Supply Assembly High voltages are present at the CRT anode Use only insulated tools when performing the following step Do not touch the metal face band of the CRT while performing the following step At the control board disconnect the 10 conductor ribbon cable that runs between the control board and the CRT deflection board 4 If the SpO option is present disconnect the ribbon cable from J12 on the control board Disconnect SpO input cable from the SpO board 5 Using a Torx T15 screwdriver loosen the four screws that secure the CRT assembly to the chassis See Figure 5 7 Leave the screws in the CRT assembly to keep them falling into the chassis Lift the CRT assembly off the chassis and save the screws Save the spacers beneath the CRT assembly and prevent them from falling into the chassis To remove the SpO board 1 Unsnap the SpO board from the four tie locks near the upper and lower edges of the board 2 Ifthe mylar insulator beneath the board is damaged you can remove it by cutting the
108. e chassis cover Install the six screws that secure the chassis 6 Reinstall the lead acid battery on the bottom of the instrument and battery cover 7 When you turn on the defibrillator it displays a message indicating that system settings have been lost See Changing Configuration Settings on page 2 22 for instructions on restoring system settings Use the printout of system settings obtained in step 1 of this procedure Removal and Replacement Replacing the Lithium Battery Figure 5 18 M1722 27 Replacing the Lithium Battery A Lithium battery 5 34 Figure 5 19 Removal and Replacement Replacing the Power Supply Fuses Replacing the Power Supply Fuses There are two power supply fuses located on the power supply To replace either fuse perform the following procedures and steps 1 Perform the procedures Removing the Battery and Opening the Defibrillator Chas 515 2 The power supply fuses are located as shown in Figure 5 19 Replace both fuses only with 250 volt 4 0 ampere rate fuses part number 2110 0055 M1722 26 Replacing the Power Supply Fuses A Power supply fuses 3 Reconnect all cables removed and install the chassis top cover 4 Install the six screws that secure the chassis 5 Reinstall the lower battery and battery cover Removal and Replacement Repl
109. e displayed e Ifthe SETUP LOST message is displayed on the screen Refer to Chapter 2 Setup and Configuration for information about the message Table 3 1 Performance Verification CodeMaster XL M1722B Test Block Test or Inspection to Expected Passing Data to Record x P pass or F Name Perform Test Results fail Visual Inspection nspect the unit including No apparent wear V x power cord recorder elec damage or corrosion trodes and cables for signs of wear damage or example corrosion V p Cycle power off and on AC Power amp verify indicator light function Battery Charge light and ality stay on Charge Sync and Pacer On light momentarily Calibration Calibrate defibrillator from Message displayed C x the setup diagnostic menu Calibration passed example C p Performance Verification and Maintenance Test Results Matrix Table 3 1 Performance Verification CodeMaster XL M1722B Test Block Test or Inspection to Expected Passing Data to Record x P pass or F Name Perform Test Results 5 a are fail Defibrillator Test Using only battery power set DT aaaa bbb cc dd DT Energy Select to 100 test eeee fff gg hh iiii jjj kk llm conduct these tests MSec to charge aaaa 2000 in setup diagnostic mode Delivered Energy bbb 100 15 example DT 1300 100 50 Impedance cc 50 Ohm 10 30 3600 360 50 55 12000 360 50
110. e oie e rd ERREUR Ue iun Die edet eee uns 4 0 Froubleshooting Tables regret ren ete pepe ptg Heer 4 10 Testing the Power Supply 4 21 Removal and Replacement lin p EE 5 1 Tool Requirements tp oO DH DRE ERR ee UR Phe t deis erit ena 5 2 Removing the Battery nni ta e e ee a RE ora Ae b ee i a Ase antes 5 2 Opening the Defibrillator Chassi Sisseneri totnm piece Het e OR EO pe e debeas 5 3 R moving the Recorder etu eret Ee eed A ee eee 5 5 Removing the Recorder Platen Assembly nennen nennen nennen retener trennen enne 5 7 Removing and Disassembling the Keypanel Assembly eese eene nennen nennen 5 7 Removing the Pacer Keypad Assembly 5 8 Removing tbe Pacer Board nn Ur ti delit epe a peter i peor ges perire eigen 5 9 Removing the Power Supply Assembly 5 10 Removing the CRT Assembly and SpO Board sse eee nen eene 5 11 Removing the Control Board re E ener ene nenne etren trennen tente etn nete E 5 14 Removing ECG Front End Board essere nennen entretenir treten ene 5 17 Removing the High Voltage Charger and Relay Assembly sees enne 5 19 Removing the High Voltage Capacitor eeseseseseeseeeeeeeeeennenne entren ene nre nete rene 5 21 R
111. e recorder stepper motor These motor control strobes are pulse width modulated at 32 kHz to reduce motor current consumption To maximize printhead life and reliability an electronic power switch turns off the supply voltage when the recorder is not in use The power switch is an FET with very low on resistance and is turned on or off by processor command Interface to the Option Slot The Monitor processor interfaces to the option slot through J12 This interface consists of an 8 bit address data bus with associated strobes for direction and timing control The Theory of Operation Control Board option slot interface includes two reset lines RERAWRST and nPRST from the control board and three interrupts from the option slot Supply voltages available to the option slot are 5 and 12 from the main power supply and DIGBACKUP from the digital backup supply on the control board The optional SpO board uses the option slot Digital Signal Processor The uPD77C25 Digital Signal Processor DSP handles digital signal processing of ECG front end information The DSP and its supporting logic interface to the ECG front end serially using the signals fFESI fFESO fnFESENL and fnFESENP The DSP interfaces to the Monitor processor through the CRT Recorder gate array Power Supply Interface The power supply interface consists of four parts Digital backup supply Power failure detector Switch A control LED drivers Digita
112. e tables for the symptoms of your defibrillator Before replacing parts check that cables and connectors are seated check that boards are seated and look for damaged parts In the tables replace the first board listed since the board most likely to fail is usually listed first Verify that the failure still exists then replace the next board listed After repair verify that the defibrillator operates to specification See Verification after Repair on page 4 2 for detailed information Using Setup Diagnostic Tests in Troubleshooting The setup diagnostic tests are built in menu driven tests that can quickly check defibrillator operation without the use of additional equipment The tests check these functional areas Defibrillator Test Checks defibrillator charging and verifies post shock data Ipeak delivered energy and patient impedance ECG monitor Test Verifies monitor operation CRT Test Displays a test pattern Recorder Test Prints a test strip Controls Test Allows you to verify keypanel operation on screen indica tion gives direct feedback when a key is pressed Indicators Test Cycles the keypanel indicators so that you can verify LED operation tests the CRT Alert tones Battery Test Checks battery charge capacity Instructions for entering and using setup diagnostic mode are found in Chapter 3 Performance Verification and Maintenance Verification after Repair After repairing the defibrillator perform the te
113. eakage current requirements and is defibrillator protected Equipotential rear of unit adjacent to AC input Protective earth ground D4 Please see Chapter 3 Performance Verification and Maintenance for safety requirements that apply to the defibrillator Meets IEC type CF leakage current requirements and is defibrillator protected iii Conventions Used in This Manual WARNING Warning statements describe conditions or actions that can result in personal _ _ injury or loss of life CAUTION Caution statements describe conditions or actions that can result in damage to the equipment or software NOTE Notes contain additional information on defibrillator usage TEXT represents the messages that appear on the display key represents keys on the front panel LIGHT represents lighted indicators on the key panel Preface This manual contains service information for the HP M1722B CodeMaster XL Defibrillator Monitor If you are servicing one of the following defibrillators the M1722B manufactured before June of 2000 the MI722A the M1723A B then you may use this guide with the understanding that The model M1723A B is equivalent to the M1722B without option 01 The model M1722A B is equivalent to the M1722B with option 01 This manual is organized as follows Chapter 1 Introduction Contains a general description of the de
114. emoving the Patient Inductor 5 dte e De DOR ERR BEER REI RR RU REF REGERE UE 5 23 Adjusting th CRIT ed onal ee i ae eee nU RIP 5 27 Adjusting the Internal Delivered Energy Calibration essere rennen nennen ennt 5 30 Replacing tbe Lithium Battery eere nhe rore tiet ere p Deer peer 5 33 Replacing the Power Supply Fuses eese enne e sesten eret nen trennen ne eson entere innen 5 35 Replacing tbe Battery Euse Dent pee ERROR RR ERR the or 5 36 Contents Verifying Operation After Service cnc uscite e eet Cete e bc o ten certe Eie beo eset end 5 38 Parts Lists Introduction e cs cete re tee b e esee e subd pete ns ashe te n 6 1 The CodeMaster Models teet e eR t de e re OEST oa 6 1 Ordering Inform tion RO gerendi ae iei eb 6 2 Tor Assistalice oe eee RE Die RO PU ER oie he RUDI 6 3 United States of AMECA Boece eh eos ies e re pere ate 6 3 GC EALD 6 3 Other International ATeas iiiter eter SE RR ER REPRE FPE sh ace pr een meritus 6 3 Cart Parts and Repair eee re REO ec en eene ce ye obe e I eet e teed 6 31 Theory of Operation licum M 7 1 Circuit References D e RE HR EO IG EE REP PUT DER th EE 7 1 Control Board
115. en stored for an extended period or each time the unit is opened The total time required to perform the battery capacity test is about 30 hours The first part of the battery capacity test involves charging the battery for eight hours to ensure sufficient charge Once started the battery capacity test runs for about 3 5 hours Because the battery capacity test discharges the battery allow an additional 18 hours after the test to re charge the battery to full capacity Testing the Battery Capacity Follow these steps to perform the battery capacity test 1 Charge the battery by plugging the instrument into AC power for eight hours When you start charging the battery verify that the AC POWER and CHRG lights are on 2 Verify that there is recorder paper in the recorder 3 While pressing the and HR Alarm keys turn the Energy Select control from the Off Standby position to the Monitor On position The setup diagnostic menu appears after a moment 4 Unplug the instrument from AC power the and lights go off 5 Press v ECG SzeA to highlight TEST BATTERY 6 Press Lead Select to start the Battery Capacity Test The monitor displays the informa tion shown in Figure 3 11 3 29 Figure 3 11 Performance Verification and Maintenance Preventive Maintenance BATTERY TEST TR START VOLTAGE XX XXX volts VOLTAGE NOW XX XXX volts ELAPSED
116. energy test Paddles in pockets Verify that the recorder prints TEST 100J PASSED This completes the Internal Delivered Energy Measurement adjustment pro cedure WARNING Removal and Replacement Replacing the Lithium Battery Replacing the Lithium Battery The lithium battery is located on the control board This battery provides voltage to memory which stores setting information To replace the battery perform the following procedures and steps Observe all lithium battery warnings There is a risk of fire explosion or burns Do not recharge disassemble heat above 100 C 212 F incinerate or solder directly on the cell Do not short circuit the battery 1 Ifthe current parameter settings are still valid print them out You can use the print out to restore the correct settings after replacing the battery See Displaying Printing Con figuration Settings on page 2 19 for instructions on printing the current settings 2 Perform the procedures Removing the Battery and Opening the Defibrillator Chas 515 3 The lithium battery is located on the control board left of the CRT as shown in Figure 5 18 Using an insulated probe remove the battery Replace the lithium battery only with an approved HP battery part number 1420 0341 or damage to the instrument may result Note the polarity marking shown in the figure 4 Reconnect any cables that were disconnected to perform this procedure 5 Close th
117. ents Control Board Connectors A 18 Table H 14 NOTE Appendix A Connector Pin Assignments Control Board Connectors Control Board J13 to Recorder Interface Board J1 Pin Signal Pin Signal 1 PRN12V 14 nPHLAT 2 HCRET 15 nPAPOUT 3 PRN12V 16 TSENSE 4 HCRET 17 SWPRNVDC 5 MTRPHO 18 HCRET 6 MTRPH1 19 SWPRNVDC 7 MTRPH2 20 HCRET 8 MTRPH3 21 SWPRNVDC 9 22 10 GND 23 SWPRNVDC Tl PCLK 24 HCRET 12 PDATA 25 CAL 13 nPHSTB 26 CGND Each pin on the control board J13 connects to a pin with the same number on the recorder interface board J1 Signal PRNI2V HCRET MTRPHO 1 2 3 PRN5V PCLK PDATA nPHSTB nPHLAT nPAPOUT Definition Printer 12 volts Used to power the stepper motor High Current Return Stepper motor phase 0 1 2 3 Supplies logic power to the recorder Printer clock Clocks data to the printhead Printer data Printhead Strobe Enables the printhead dot printing Duration of the strobe is controlled to compensate for printhead temperature and volt age Printhead latch Latches a column data of data into the printhead Paper Out Conditioned signal that indicates the paper out condition Table H 15 Appendix A Connector Pin Assignments Front End Board Signal Definition TSENSE Temperature SENSE An analog signal generated by a temperature sensor on the recorder varies the duty cycle for the printhead write SWPRNVDC
118. epeating tone that alter nates between two frequen cies At any time the instrument emits this tone beginning 1 minute before shutdown due to low battery charge The battery voltage is less than 11 4 V The battery voltage is too low and the bat tery does not recharge Connect the instrument to AC power so that the battery can recharge Check the battery cable con nections to the high voltage board Check the battery capacity by running the Battery Capacity Test on page 3 28 NOTE Table 4 3 Table 4 4 Troubleshooting Troubleshooting Tables Other tones normally occur because various functions are enabled See Auxiliary Function Tests Indicator Test on page 3 22 for descriptions of these tones On screen System Messages M essage Possible Solution D EFIB FAILURE I code Troubleshoot defibrillator subsystems Check Error Log and troubleshoot per error MONITOR FAIL URE 1 Replace front end board 2 Replace control board PACER FAILU E Replace pacer board SPO2 FAILURI 1 Cycle 02 power 2 Replace 5 0 board SYSTEM FAIL U RE Replace control board On screen Defibrillator Monitor Messages Message Cause Possible Solutions 50J MAX Internal paddles are attached and the Energy Defibrillator will automatically limit Select control has been turned past 50 joules t
119. er transfer to the floating circuit The hardware design is summarized in the block diagram in Figure 7 9 7 24 Figure 7 9 Opto Isolator U54 Ambient Light Rejection C107 C 108 Theory of Operation 5 0 Board Variable Gain Photo Seperator Low Pass Filter Dark Subtract Filter U103 A U106 C110 C114 Rcode 1 Rcode 2 Hcode 1 Reode 2 Transducer 12V 6V Isolation Transformer PWM Controller U51 Sp0 Board Block Diagram Floating Section Excessive Light Detection U104 Gain Level Shift U103B A D Micro Converter Controller U114 U252 U115 Opto Opto Isolator Isolator U53 U53 Floating Section Switch Buffer U7 Dual Port Timer Interrupt RAM U8 Control U19 U20 Grounded Section Board 1722 05 The function of the floating section is two fold First the floating section enables accurate reading of light transmittance by removing noise and compensating for ambient light in the pulse train Second the floating section drives the red and infra red LEDs in the transducer cable The LEDs are driven and the photo diode signal is sampled in four discrete phases 7 25 Theory of Operation Sp0 Board 1 Dark phase During this phase neither red nor infra red LEDs are lit and ambient light is measured 2 Red phase In the red phase the red LED is lit and the transmittance of the light
120. erification and Maintenance to verify operation after service 5 38 NOTE Parts Lists lt Introduction This chapter contains parts lists for these assemblies defibrillator main assembly battery door key panel assembly high voltage assembly CRT assembly recorder external paddle sets In addition Table 6 11 lists ordering information for supplies The CodeMaster Models The CodeMaster defibrillator monitor is available in one model Model M1722B XL The previous models M1722A and M1723A B have been consolidated under one master model number M1722B CodeMaster is available in white or yellow colored enclosure The model with the option 048 previously suffix A is white and option 049 previously suffix B is yellow Consequently some parts in the parts list are available in both colors primary case parts and labels Parts in white and yellow have different part numbers 6 1 Parts Lists Ordering Information Ordering Information You may order any of the parts listed through your local Sales Service Office listed at the back of this manual In the United States and Canada you can call the Direct Customer Order Center toll free 1 800 227 8164 In the United States you can order supplies for the defibrillator by calling toll free 1 800 225 0230 You can order HP 1290C transducers by calling toll free 1 800 934 7372 You can order instrument repa
121. es See Figure 5 3 2 Using a Torx T 10 screwdriver remove the four screws that secure the recorder to the chassis Lift the recorder from the recorder bucket and disconnect the ribbon cable Do not push down in the recorder bucket this may cause it to drop into the chassis Per form this procedure in reverse to install the recorder To remove the recorder sliding door perform step 3 Removal and Replacement Removing the Recorder Figure 5 3 M1722 15 Removing the Recorder A Recorder retaining screws under open door on left and under plastic label on right 3 To remove the recorder sliding door turn the recorder upside down so that the sliding door is facing you and the paper roll is facing away Note how the springs are installed on the sliding door and how the metal door limit is used to stop the travel of the sliding recorder door The springs are identical 4 Using a pair of needle nose pliers remove and save both springs 5 Lift the door travel limiter up and slide the door forward away from the recorder Now bend the retaining clips on the door so that the door is free of the recorder To reinstall the sliding door perform these steps in reverse After removing the recorder you can remove the recorder bucket by opening the chassis and pushing down on the recorder bucket from the top
122. ese parts The Monitor processor operates at 8 MHz clk2 equals 16 MHz System ROM consists of two 64Kx16 or 128Kx16 devices which are socketed system RAM consists of four 128Kx8 devices System RAM and the RAM interface to the processor are backed up by battery to ensure that data is not lost during power up or power down The real time clock circuitry is also backed up by the battery The Monitor processor communicates with the Defibrillator processor and the real time clock through the System gate array The System gate array also provides four levels of Monitor processor interrupts Display Control The CRT Recorder gate array interfaces the Monitor processor to the display The gate array generates the necessary strobes to support a fixed plane 256Kx4 VRAM and a moving plane 256Kx4 VRAM and provides video and sync information for the CRT Both full bright and half bright information is provided to the CRT The gate array also allows the Monitor processor to randomly read and write VRAM Recorder Control The CRT Recorder Gate Array also interfaces the recorder to the Monitor processor The recorder requires four 384 bit serial data streams every 5 ms Because of the very high overhead that would be required for the processor to do this directly the CRT Recorder gate array converts this to 48 32 bit accesses performed via DMA from system RAM The CRT Recorder gate array also generates the appropriate motor control strobes to operate th
123. etup menu maintains selected language System date on setup menu 1 remains unchanged System time on setup menu 1 remains unchanged date is cleared Stored calibration value maintains last value mea sured by Defibrillator Calibration See Setup Diag nostic Menu Tests on page 3 6 for test information Shock counter maintains current count see The System Log on page 4 4 for more information e System error log maintains current system log data see The System Log on page 4 4 for more information See Figure 2 13 and Figure 2 14 for factory default set tings information Prints the system error log See The System Log on page 4 4 for more information These menu items test defibrillator operation See Setup Diagnostic Menu Tests on page 3 6 for test information Table 2 3 NOTE Setup and Configuration Configuration Displaying Printing Configuration Settings To display or print the configuration settings follow the steps described in Table 2 3 Displaying Printing a Configuration Setting Description Display the setup diagnostic menu Process Press both the Syne and HR Alarm keys while turning the Energy Select control from Off Standby to the Monitor On position Highlight the setup menu Press v ECG Size or ECG SizeA to move the highlight over SETUP MENU 1 or SETUP MENU 2 Display the setup menu
124. fibrillator Monitor These tables list the options and accessories available for the XL defibrillator monitor 1 7 Introduction Options and Accessories Country Options Each country option includes appropriate power cord and language Table 1 8 shows the configuration of each country option Table 1 8 Country Option Configurations Option Country Labels Users Manuals Voltage Frequency Power Cord ABA North America English English 120 60 903 US NEMA 5 15 ABB Europe English English 220 50 902 EURO IEC 83 ABC Canada French French 120 60 903 US NEMA 5 15 ABD Germany German German 230 50 902 EURO IEC 83 ABE Spain Spanish Spanish 230 50 902 EURO IEC 83 ABF France French French 230 50 902 EURO IEC 83 ABG Australia English English 240 50 901 Australia ABH Netherlands Dutch Dutch 230 50 902 EURO IEC 83 ABJ Japan Japanese Japanese 100 50 903 US NEMA 5 15 ABK Intercon English English English 220 50 902 EURO IEC 83 ABL Canada English English 120 60 903 US NEMA 5 15 ABM Latin America Spanish Spanish 120 60 903 US NEMA 5 15 ABN Norway Norwegian Norwegian 220 50 902 EURO IEC 83 ABP Switzerland German German 230 50 906 Swiss Switzerland French French 230 50 906 Swiss ABS Sweden Swedish Swedish 230 50 902 EURO IEC 83 ABU United Kingdom English English 240 50 900 UK BS 1363 A ABX Finland Finnish Finnish 230 50 902 EURO IEC 83 ABY Denmark Danish Dan
125. fibrillators lists of technical specifications and lists of options and accessories Chapter 2 Setup and Configuration Summarizes the defibrillator installation and explains how to configure the defibrillator for specific customer requirements Chapter 3 Performance Verification and Maintenance Explains how to inspect test and verify the defibrillator s performance using built in tests and lists maintenance procedures and safety requirements that apply to the defibrillator Chapter 4 Troubleshooting Contains procedures and error codes to aid the service person in localizing faults to a replaceable subassembly Chapter 5 Removal and Replacement Contains procedures for removing and replacing each of the defibrillator s major subassemblies Chapter 6 Parts Lists Lists part numbers for the defibrillator s replaceable parts and provides assembly drawings Chapter 7 Theory of Operation Provides an overview of how the defibrillator works and describes the operation of the major subassemblies Appendix A Appendix A Connector Pin Assignments Identifies and defines the signals assigned to the subassembly interconnections Index Vi Contents Introduction The CodeMaster XL Defibrillator Monitor eese eene ener nennen nennen tnmen 1 1 MTRO 003306L Cart tee CREER RUE Eden eU pu 1 2 Inquiries 55a n pO IU RII IE UD 1 3 Specification Data 24 46 ssa a hes Seek Me RERO Omne meni hb
126. g a nut driver snap new tie locks into the CRT holes Line up the holes on the SpO board with the tie locks and snap the SpO board into the tie locks without flexing the board To install the deflection board the CRT and the CRT assembly perform the above procedure in reverse order Removing the Control Board To remove the control board perform the following procedures and steps 1 2 Perform the procedure Removing the Pacer Board Perform the procedure Removing the Power Supply Assembly Perform the procedure Removing the CRT Assembly and SpO Board At the control board disconnect all remaining cables Connectors are J1 through J13 Save the loose cable that connects to J11 J12 connects to the SpO option cable Figure 5 8 shows the locations of the cables and connectors 5 14 Figure 5 8 CAUTION Removal and Replacement Removing the Control Board Removing the Control Board Cables and Connectors A Cables and connectors to remove B This cable connects to the recorder C This cable connects to the keypanel assembly To avoid shorting the lithium battery do not place the control board on a conductive surface 5 Using the Torx T 10 screwdriver remove the screws that secure the control board to the chassis Figure 5 9 shows the locations of the retaining screws Remove the control board from the chassis and place it on a non conductive surface
127. g a connector on the internal paddles adaptor cable There are no shock control switches on the Internal Paddles themselves The defibrillator is discharged by pressing two shock buttons located on the defibrillator connector housing The defibrillator determines paddle type by measuring the voltage on the CHDONE control line The voltage for a valid Internal Paddle Set is less than 0 5 Volts External Adhesive Pads The External Adhesive Pads are connected to the defibrillator using an auxiliary connector on the pads adaptor cable External Pacing and Defibrillation can be performed through this connection The defibrillator is discharged by pressing two shock buttons located on the defibrillator connector housing The defibrillator determines paddle type by measuring the voltage on the CHDONE control line The voltage range for a valid external adhesive Pads adaptor is 3 0 4 0 V Theory of Operation Defibrillator Pacer Patient Connections 7 31 Theory of Operation Defibrillator Pacer Patient Connections 7 32 Appendix A Connector Pin Assignments The tables in this appendix list the pin assignments for each connector on assemblies in the instrument Following each table is a dictionary of the signal names listed in the table Some signal names begin with a letter that indicates the signal type c Connector signals These have been conditioned for EMI purposes f Filtered signals These signals have been low pass filtered to mi
128. gnments Defibrillator Connector The defibrillator connector connects to the control board and the front end board Table H 20 lists connector pin assignments Defibrillator Connector J1 From Defibrillator Connector To Control Board Pin Signal Pin Signal 1 nCHARGE 1 nPADCHG 2 CHDONE PADID 2 nDISCHGA 3 5V 3 CHDONELED 4 PCI 4 GND 5 nDISCHARGE APEX 5 PADSSV 6 LOGIC GND 6 CGND 7 SHIELD GND 7 PCIDRV 8 nDISCHARGESTERNUM 8 nDISCHGS From Defibrillator Connector To Front End Board A HI VOLTAGE APEX J62A HV WHITE APEX 1 S HI VOLTAGE STERNUM J61A HV RED STERNUM 1 A 25 Appendix A Connector Pin Assignments Defibrillator Connector Signal nCHARGE CHDONE PADID PCI nDISCHARGE APEX nDISCHARGE STERNUM HI VOLTAGE APEX HI VOLTAGE STERNUM A 26 Definition Apex paddle charge button Charge is asserted low Voltage level indicates the type of paddles connected to the instrument Also used to light the apex paddle charge done LED Patient contact impedance A voltage which turns on a specific num ber of LEDs on the sternum PCI LED bar A signal asserted when the apex paddle shock button is pressed A signal asserted when the sternum paddle shock button is pressed Connects the apex paddle pad to the output side of the patient transfer relay and to pacer terminal if the pacer is installed Connects the sternum paddle pad to the output
129. he charge to 50 joules internal pad dles limit For a higher charge level use external paddles or pads Pads Adapter Cable Replace the Pads Adapter Cable CHECK The recorder door is open or the recorder is out Close the recorder door or replace the RECORDER 3 of paper paper roll see Chapter 4 seconds DEFIB DIS Defibrillator has internally discharged energy and Defibrillator normally disarms after ARMED is now disarmed holding the charge level for about 60 3 seconds seconds in Manual Mode and 30 sec onds in Shock Advisory Mode Press to charge to the selected energy level LEADS OFF Loose or defective patient cable cable connec Check cable and connectors for dam displayed on screen 3 seconds tors age Tighten connectors as neces sary Replace damaged or defective cable Table 4 4 Troubleshooting Troubleshooting Tables 4 12 On screen Defibrillator Monitor Messages Message EADS OFF not indicated when Cause Dirty contacts on connector for leadwires Possible Solutions Ensure the contacts on the connector are clean and dry wire is off 7 Defective or dirty leadwire Clean and swap around to isolate defective leadwire Replace defec tive leadwire Pads Adapter Cable Replace Pads Adapter Cable LEADS OFF Poor electrode contact Improve patient preparation indicated 3 sec onds when wire is Defective leadwire Remove leadwire and install sho
130. high voltage capacitor can store lethal amounts of energy When accessing the high voltage capacitor be sure to follow the instructions and observe the warning under Removing the High Voltage Capacitor Removing the Patient Inductor The high voltage storage capacitor can store lethal amounts of energy Be sure that this capacitor is discharged before touching high voltage components such as the high voltage capacitor patient inductor patient relay or patient cable connector To discharge the high voltage capacitor 1 Be sure to wear safety glasses while discharging the capacitor 2 In diagnostic mode make sure that the Available Energy is 0 the Energy Select control is in the Monitor On position 3 Turn the Energy Select control to Off Standby 4 Wait 30 seconds before opening the unit 5 After accessing the chassis as described in step 1 below short the terminals of the high volt age capacitor You can use a screwdriver with an insulated handle to short the capacitor terminals To remove the patient inductor perform the following procedures and steps 1 Perform the procedures Removing the Battery and Opening the Defibrillator Chas i 259 SIS 2 Perform the procedure Removing the Control Board This procedure instructs you to access the chassis and also remove the pacer board power supply and CRT assembly 5 23 Removal and Replacement Removing the Patient Inductor 3 At the patient ind
131. igure 2 12 shows the items on the menu Figure 2 12 E SETUP DIAGNOSTIC MENU ON CALIBRATE DEFIB last calibration date SETUP MENU 1 last setup date SETUP ENU 2 RESTORE FACTORY SETTINGS PRINT LOG TEST DEFIB EST ECG TEST CRT ES RECORDER TEST CONTROLS ES INDICATORS TEST BATTERY EST PACER M TURN OFF TO EXIT DIAGNOSTIC 20 Setup Diagnostic Menu NOTE The pacer test is displayed on the menu only if the pacer option is installed Calibrates the defibrillator The date when calibration was last performed is normally shown to the right The date disappears if the stored value that the defibrillator test measures is lost In either case performing defibrillator calibration puts the test date on the menu See Setup Diagnostic Menu Tests on page 3 6 for test information CALIBRATE DEFIB 2 17 Setup and Configuration Configuration SETUP MENU 1 SETUP MENU 2 RESTORE FACTORY SETTINGS PRINT LOG TIES EXA 2 18 Displays setup menu or 2 The date when either menu was last displayed is normally shown to the right of MENGA When factory defaults restored by the user or because configuration is lost no date is displayed Displaying either menu puts the date on the menu Changes the configuration settings in the setup menus back to the factory default settings Exceptions are LANGUAGE mez on s
132. illator sounds a continuous tone while it is armed CRT Alerts On or Off For ON the defibrillator beeps three times when any CRT Alert message is displayed OFF turns off CRT alerts Alert Volume 3 to 15 loudest Selects the volume of CRT Alerts and HR Alarms Mode after CV Sync or Defib Selects the defibrillator mode after cardioversion For SYNC the defibrillator discharges at next R wave after the user presses both Shock buttons for DEFIB the defibrillator discharges only when user presses dis charge buttons Settings for the pacer Option A01 Shown when pacer is turned on Pacer Rate 40 to 180 ppm in increments of 10 Selects the number of pacer pulses per minute ppm Pacer Output 10 to 200 mA in increments of 10 Selects the amplitude level of the pacer pulses in mA lFor the CodeMaster XL without Option 01 the limits values cannot be changed the factory default values listed in Figure 2 13 and Figure 2 14 are used 2 23 NOTE Setup and Configuration Configuration Disabling the Internal Pace Pulse Detection Marker In normal operation the defibrillator detects internal pace pulses when monitoring with leads Internal pace pulse detection is indicated on the screen by a negative spike relative to the ECG baseline Regardless of this configuration setting the machine will continue to reject patient internal pace pulses for heart rate calculation To enable or dis
133. ine and explain the errors and suggest one or more corrective actions for each The troubleshooting tables include the following Table 4 2 Describes tones made by the defibrillator Table 4 3 Explains system level messages that the defibrillator can display Table 4 4 Describes displayed messages indicating defibrillator monitor fail ures Table 4 5 Describes displayed messages that indicate pacer malfunction Table 4 6 Describes displayed messages that indicate a malfunction of the pulse oximeter Table 4 7 Describes failure messages that the recorder can print Table 4 8 Lists indications of improper use Table 4 9 Describes indications of power supply or main battery failures Table 4 10 Lists recorder problems and their symptoms Table 4 11 Lists symptoms display and logic failures Table 4 12 Describes keypanel failures and their symptoms Table 4 13 Describes defibrillator problems and their symptoms Table 4 14 Describes pacer problems and their symptoms Table 4 2 Audible Indicators Tone Cause Possible Solutions While all keypanel LEDs are lit a beep about 1 second long At power on indicates power on cycle is normal None required A continuous beep about 7 seconds long At power on the monitor and defibrillator are not communicating The malfunction is probably in the monitor circuits the defibrillator may still function properly Replace the control board as recommended in Table 44 A r
134. ion 1 1 features 1 1 setup 2 16 test 3 11 defibrillator calibration 3 9 defibrillator checklist 3 33 defibrillator connector external adhesive pads 2 7 external paddles 2 7 internal paddles 2 7 uses 2 7 defibrillator processor 7 2 7 3 charging operation 7 4 defibrillation control 7 4 discharging operation 7 5 system monitoring 7 5 defibrillator status 7 6 7 14 deflection horizontal 7 22 vertical 7 22 delivered energy calibration 4 19 5 30 delivered energy level testing 3 14 delivered energy level test 3 14 digital backup supply 7 8 digital signal processor 7 2 7 8 7 18 disassembly CRT assembly 5 11 keypanel 5 7 display adjustments 5 27 problems 4 18 display interface 7 7 displaying setup diagnostic menu tests 3 6 equipment list performance tests 3 32 error codes 4 6 error log clearing 4 9 codes 4 6 interpreting 3 31 printing 3 31 ii Index Index sample printout 4 4 using 4 4 external adhesive pads defibrillator connector 2 7 external monitor testing 3 26 external paddles 7 30 connecting 2 10 defibrillator connector 2 7 external paddles adapter cable connecting 2 10 connecting to defibrillator 2 10 external paddles connector release latch 2 7 external paddles connector parts list 6 28 front panel Charge key 7 4 fuse battery protection 7 13 replacing in power supply 5 35 gate array CRT recorder 7 2 7 7 7 21 7 29 system 7 2 7 6 high
135. ir parts by calling toll free 1 800 227 8164 Outside the United States you can order supplies for the defibrillator by contacting your HP regional medical distributor Parts Lists Calling for Assistance Calling for Assistance You can call Service for technical assistance United States of America Medical Response Center Tel 1 800 548 8833 Canada Eastern Region Tel 1 800 361 9790 Central and Western Region Tel 1 800 268 1221 Other International Areas Australia France Tel 131147 Tel 0803 35 34 33 Germany Italy Tel 0130 4730 Tel 0292 122999 Netherlands United Kingdom Tel 0 20 547 6333 Tel 44 344 36633 Belgium Tel 32 2 778 35 31 In other countries contact your local service office Consult the listing at the back of this manual for office locations and information 6 3 Parts Lists Calling for Assistance Figure 6 1 Top Case Parts List Table 6 1 Top Case Parts List Description Part No idis aie 1 Keypanel assembly part numbers See Table 6 5 1 Keypanel assembly without Sp0 English M1722A B M1722 69500 M1722 69610 Keypanel assembly without Sp0 French 1722 M1722 69501 M1722 69611 Keypanel assembly without Sp0 German M1722A B M1722 69502 M1722 69612 Keypanel assembly without Sp0 Dutch M1722A
136. is designed to check the defibrillator in these power configurations With fully charged battery installed no AC power With the defibrillator plugged into AC power battery is removed With the defibrillator powered by battery only you run the test at 100 joules and at 360 joules The values of some test results vary depending on the power configuration being used Table 3 3 lists acceptable test result values for each power configuration To run the Defibrillator Test follow these steps 1 For battery only testing a Make sure that the battery is installed and is fully charged b Disconnect the defibrillator from AC power For AC power only testing a Disconnect the battery b Plug the defibrillator into AC power 3 11 Performance Verification and Maintenance Performance Verification 2 Select TEST DEFIB in the setup diagnostic menu the screen displays the informa tion shown in Figure 3 3 This table shows defibrillator performance parameters Some of these parameters are not available until after the defibrillator is discharged Figure 3 3 DEFIB TEST A AVAILABLE ENERGY xxx joules MSEC TO CHARGE xx milliseconds SEC TO DISARM xx seconds DELIVERED ENERGY xx joules IMPEDANCE xx ohms PEAK CURRENT xx amps DEFIB ERRORS xxxxxxx error code CAPACITANCE xxx in 0 1 UF units SHOCK COUNTER XX Nc TURN OFF TO EXIT DIAGNOSTIC E
137. ish 230 50 912 Danish ABZ Italy Italian Italian 230 50 902 EURO IEC 83 ACD Switzerland English English 230 50 906 Swiss South Africa English English 240 50 917 EURO IEC 83 ACS Europe French French 220 50 902 EURO IEC 83 AKL Thailand English English 220 50 903 ULS NEMA 5 15 AKM China English English 220 50 901 China AKV South America Spanish Spanish 220 50 902 EURO IEC 83 AV Korea English English 220 60 902 EURO IEC 83 1 8 Table 1 8 Country Option Configurations Continued Introduction Options and Accessories Option Country Labels Users Manuals Voltage Frequency Power Cord AB4 Singapore English English 220 50 900 BS 1363 A 5 Hong Kong English English 220 50 900 BS 1363 A ABW Belgium Dutch Dutch 230 50 902 EURO IEC 83 AC8 Argentina Spanish Spanish 220 50 920 ARG Res 63 ABW Belgium French French 230 50 902 EURO IEC 83 ACJ India English English 240 50 917 BS 546 15A ACM Belgium German German 230 50 902 EURO IEC 83 ACP Austria German German 230 50 902 EURO IEC 8 AKH Chile Spanish Spanish 220 50 921 CEI 23 16 AKJ Israel English English 220 50 919 SI 32 AKY Peru Spanish Spanish 220 60 904 UL 1681 AR6 Indonesia English English 220 60 902 EURO IEC 8 AWB Greenland English English 220 50 912 SR 107 2 D1 AWC Laos French French 220 50 903 UL 1681 AWD Paraguay Spanish Spanish 220 50 902 EURO IEC 8 AWN Lybia English English 240 50 902 EURO IEC
138. its own isolated power supply The supply for the leads front end is enabled when the FELEN signal is true the supply for the paddles front end is enabled when the FEPEN signal is true A forward converter which is clocked by FEPWRCLK generates isolated power for the two front ends The output of the converter is regulated to 5 volts The supply also provides a 2 5 volt reference for use in biasing the front end IC Theory of Operation ECG Front End Board Leads Input Protection The leads are connected to the five input channels of the IC through a breakdown device neon bulb and a 2 pole LPF The neon bulb is used as Defibrillator overload protection current is limited by a 1 kQ resistor in the lead set The remaining voltage is dropped across 75 and the internal protection diodes of the IC Paddles Input Protection The paddles inputs are subjected to defibrillator shocks and therefore are designed to meet 8 kV breakdown from paddle to paddle 100 high voltage resistors in series with the ECG input limit the current sufficiently to allow the input protection diodes on the front end IC to handle the current As part of the pre shock impedance path series resistors and capacitors are also high voltage devices External diode clamps are added to this path routing current away from the front end IC Cal Pulse Internally generated signals allow for self test and gain calibration A ImV 200ms calibration pulse can be pri
139. key bits set by the Energy Select control which selects the charge level This signal turns the instrument on asserted low Appendix A Connector Pin Assignments Control Board Connectors A 10 Table H 8 NOTE Table H 9 Control Board J7 to Pacer Board J1 Pin Signal 1 PACEN 2 PACCUR 3 PACMES 4 GROUND 5 PACSYNCLK 6 HCVDC 7 HCRET Appendix A Connector Pin Assignments Control Board Connectors Each pin on the control board J7 connects to a pin with the same number on the pacer board J1 Signal Definition PACEN Pacer Enable Enables power to the pacer PACCUR Pacer Current Sets pacer output current PACMES Pacer Measurement Output current measured by the pacer and returned to the defibrillator controller PACSYNCLK Synchronous Clock Synchronizes the pacer switching power supply to an even multiple of the ECG sample rate 96 kHz HCVDC High Current VDC VDC Supplies primary power to the pacer HCRET High Current Return VDC Return for HCVDC Control Board J8 to Power Supply Board J2B Pin Signal Pin Signal 1 HCRET 9 nPSON 2 PRN12V 10 VDC2 3 GROUND T SWADRIVE 4 12V 12 HCVDC 5 5V 13 HCRET 6 GND 14 HCVDC Table H 9 NOTE Appendix A Connector Pin Assignments Control Board Connectors Control Board J8 to Power Supply Board J2B 7 PSSYNCLK 15 HCRET 8 ACON Each pin on the control board J8 connects to a pin wi
140. l Backup Supply VDC2 and VBATT are diode ORed to form VBACKUP VBACKUP passes through low current regulator to generate a 4 3 V supply DIGBACKUP This provides a power source whether on battery only or AC only DIGBACKUP powers the On Off circuitry and VRAM Power Failure Detector When the 5 V supply voltage drops below 4 65 V this circuit generates nPF a signal that interrupts both processors via the System gate array and 8 ms later produces nRAWRST the basic reset signal Switch A Control Switch A is a solid state FET switch in the power supply that connects the battery to VDC When the defibrillator is connected to AC Switch A closes to allow VDC to charge the battery When the defibrillator is not connected to AC and the instrument is turned on Switch A closes to allow the battery to power the instrument The Switch A control circuit generates fSWADRIVE the drive signal for Switch A fSWADRIVE closes Switch A under the following conditions Theory of Operation Control Board AC is present and the high voltage capacitor is not charging The defibrillator is on and the battery voltage is higher than the shutdown voltage no AC The battery is below the shutdown voltage but is charging the high voltage capacitor no AC The Switch A control circuit includes part of the mechanism that shuts down the instrument when the battery gets too low One minute after the Defibrillator processor detects that battery v
141. l Table H 5 5 plo 1722 61626 Defibrillator connector Table H 6 J6 M1722 60195 Keypanel board Table H 7 J7 M1722 61617 Pacer board Table H 8 J8 M1722 61606 Power supply board Table H 9 J9 M1722 61610 High voltage board Table H 10 J10 plo M1722 82800 Patient inductor Table 11 Ju M1722 61619 CRT deflection board Table H 12 J12 M1722 61628 Sp0 board Table H 13 J13 M1722 61618 Recorder interface board Table H 14 J14 M1722 61632 Beeper Table H 2 Control Board J1 to Pacer Keypanel Board J1 Pin Signal 1 GROUND 2 nPONOFF 3 PACONLED 4 nPMODE 5 nPACPRES 6 nPRATEINC 7 nPRATEDEC A 3 Table H 2 NOTE Table H 3 Appendix A Connector Pin Assignments Control Board Connectors Control Board J1 to Pacer Keypanel Board J1 Pin Signal 8 nPCURINC 9 nPCURDEC 10 nPSTSTOP Each pin on the control board J1 connects to a pin with the same number on the pacer keypanel board J1 Signal Definition nPONOFF Pacer On Off PACONLED Pacer On LED Drives the LED on the pacer keypanel The LED is on when the pacer function is turned on nPMODE Pacer Mode nPACPRES Pacer Present nPRATEINC Pacer Rate Increase nPRATEDEC Pacer Rate Decrease nPCURINC Pacer Current Increase nPCURDEC Pacer Current Decrease nPSTSTOP Pacer Start Stop Control Board J2 to Front End Board J2 Pin Signa 1 CGND 2 nFESENP 3 nFESENL 4 FESI 5 FESO 6 FEPEN 7 FELEN Table H 3 NOTE Table H 4 Appendi
142. l paddle adapter Yellow M1740B Internal paddle set 7 5 M1741A Internal paddle set 6 0cm M1742A Internal paddle set 4 5 M1743A Internal paddle set 2 8cm M1744A Anterior anterior paddle set white with PCI M1746A 6 29 Table 6 11 Parts Lists Calling for Assistance Supplies List Description Part No Anterior anterior paddle set yellow with PCI M1746B Anterior anterior paddle set white no PCI M1747A Anterior anterior paddle set yellow no PCI M1747B Pads Defibrillation Pacing Pads Adult AAMI M3501A Defibrillation Pacing Pads Adult IEC M3502A Defibrillation Pacing Pads Pediatric M3503A Defibrillation Pacing Pads Pediatric AAMI M3504A Pads adapter White M1750A Pads adapter Yellow M1750B Pads adapter test load M1781A Battery lead acid M1758A Recorder paper 40457C D Carry case M1778A Accessory pouch M1779A Wall mount hardware M1722 80001 6 30 Parts Lists Cart Parts and Repair Cart Parts and Repair Hewlett Packard does not repair or supply parts for the MTRO 00336L cart To obtain information about ordering parts or repair services contact InterMetro Industries Corp North Washington Street P O Box A Wilkes Barre PA 18705 0557 Attn Ben Stepniak Customer Service Telephone 717 825 2741 Parts Lists Cart Parts and Repair 6 32 Theory of Operation Introduction This chapter provides theory of operation for the M1
143. lf Bright Video signal HSYNC Horizontal Sync signal CRT12V 12 volt supply for the CRT Table H 13 Appendix A Connector Pin Assignments Control Board Connectors Control Board J12 to SpO Board P1 NOTE Pin Signal Pin Signal 1 GND 18 nMWR 2 OAD 0 19 GND 3 OAD 1 20 CGND 4 GND 21 GND 5 OAD 2 22 nOPTRDY 6 OAD 3 23 GND 7 GND 24 nOPTINTO 8 OAD 4 25 nOPTINT1 9 OAD 5 26 nOPTINT2 10 GND 27 DIGBACKUP Tl OAD 6 28 nOPTSELO 12 OAD 7 29 5V 13 GND 30 nOPTSEL1 14 OMALE 31 12V 15 GND 32 nOPTSEL2 16 nMRD 33 nERAWRST 17 GND 34 nPRST Each pin on the control board J12 connects to a pin with the same number on the SpO board P1 Signal Definition OADX O 1 Monitor address data bus lower 8 bits 2 3 4 5 6 7 OMALE Monitor Address Latch Enable nMRD Monitor Read Strobe nMWR Monitor Write Strobe nOPTRDY Option Ready Signal Signal nOPTINTO nOPTINTI nOPTINT2 DIGBACKUP nOPTSELO nOPTSELI nOPTSEL2 nERAWRST nPRST Appendix A Connector Pin Assignments Control Board Connectors Definition Interrupt signals from options 0 1 and 2 DIGital BACKUP A 4 3V low current regulated supply for powering battery backed up logic on the SpO board Option Select Raw Reset A reset signal from the control board to the option slot Reset A monitor processor controlled reset signal Appendix A Connector Pin Assignm
144. log To decipher an error code on the printout refer to the error lists in Chapter 4 Troubleshooting Store the error log printout with the defibrillator s permanent maintenance record When the printout is complete you can select another test from the setup diagnostic menu Care and Cleaning The defibrillator and its accessories are chemically resistant to common cleaning solutions and non caustic detergents The following list includes some approved cleaning solutions e 90 Isopropyl alcohol except adapters and patient cable Soap and water e Chlorine Bleach 30ml l water Keep the outside of the instrument clean and free of dust and dirt Clean the paddles thoroughly to prevent build up of dried electrolyte paste Do not allow any fluids to penetrate the instrument case Avoid pouring fluid on the unit while cleaning Do not use abrasive cleaners or strong solvents such as acetone or acetone based compounds Clean the display screen carefully It is especially sensitive to rough handling and is subject to scratching Do not steam sterilize the monitoring leads submerge them for prolonged periods or heat them above 50 C If metallic surfaces become oxidized clean them with a very light abrasive toothpaste Do not use highly abrasive cleaners such as steel wool or silver polish Do not steam or gas sterilize the external paddle set For detailed information on cleaning and sterilizing the internal
145. m width associated with the 50 percentage points of the first lobe of the current waveform tio Waveform width associated with the 10 percentage points of the first lobe of the current waveform ECG Front End Board Two separate and isolated front ends constitute the ECG front end board as shown in the block diagram in Figure 7 6 The first is a two wire paddles ECG amplifier and the second is a five wire leads front end The paddles front end operation is nearly identical to the leads front end operation The design for both front ends is based on a Hewlett Packard custom front end IC The paddles front end also includes functions for paddles in pocket and pre shock impedance also called paddles contact impedance or PCI Figure 7 6 Theory of Operation ECG Front End Board ECG Front End Board J2 Leads Front End J1 2 Isolated Section J63 BS a Paddles Front End J65 ae J62 J66 ECG Front End Block Diagram RA LL LA V RL LREF PADINPOCKETS Sternum Paddle Patient Relay Output PGND Apex Paddle Patient Relay Output Pacer Return Both front ends communicate with the Digital Signal Processor DSP located on the control board The DSP processes the digitized data from both front ends simultaneously and provides data to the monitor processor Power Supplies Each of the front ends has
146. made to change pacing mode while pacing Stop the pacer press Start Stop before you change the pacing mode 4 13 Table 4 6 Table 4 7 Troubleshooting Troubleshooting Tables Sp0 Messages Option Message Cause SPO2 FAIL The unit detected a failure in 5 0 subsystem URE hardware This failure does not affect other parts of the instrument Possible Solutions Press Sp0 On Off twice to power cycle the 5 0 option If the error happens again call for service SPO2 SEN The sensor or adapter cable is broken Replace the sensor or adapter cable SOR FAIL SPO2 CABLE Sensor or cable is disconnected Check 5 0 connections between OFF defibrillator monitor and the sensor cable or adapter cable Dashes appear on Can t derive measurement because display instead of The sensor is not on the patient Sp0 reading No pulse is detected The sensor is incorrectly positioned The sensor is defective Check the patient for a pulse Reap ply the sensor and make sure it is correctly positioned If it doesn t work replace the sensor Irregular pulse patterns Patient motion SPO2 NOISY SIGNAL Reapply sensor Consider using a different sensor site SPO2 LIGHT Too much interference from external light Reapply sensor INTERF Damage to sensor or adapter cable Turn off lights in the room If other options do not work replace the sensor SPO2
147. ment from AC power and remove the battery The defibrillator stores high voltage energy and is capable of delivering up to 360 joules of DC energy to a 50 ohm impedance 4 3 Troubleshooting The System Log The System Log The system log is battery maintained memory that stores error codes for the last error event that the instrument detected In addition the system log contains software version and instrument option information The system log can be printed by entering the setup diagnostic menu and selecting PRINT LOG as explained in Chapter 3 Performance Verification and Maintenance See Figure 4 1 Figure 4 1 SYSTEM LOG UN ERROR COD ERROR OCCURRED dd mm SOFTWARE ERSION XX XX XX XX OPTIONS a Xy SHOCKS XXXX Calibration status See description below m pm System Error Log Format RROR The error code of a run time error DE RROR The date and time that the error occurred according to the system CURRE clock OFTWARI The software version of the firmware installed in the defibrillator the ERSION version line has the following format Monitor code revision Reserved DSP code revi sion Defib code revision OPTIONS a code in the form of a xy a instrument 0 M1722A B 1 MI723A B For an M1723A B the second option number is always 0 lt it Q NOTE Troubleshooting The System
148. menu Turn Energy Select to the Off Standby position to store your setting changes in memory and exit the menus Table 2 5 and Table 2 6 show the configuration items and list possible settings You can change the settings back to the default settings by selecting 2 22 Setup and Configuration Configuration RESTORE FACTORY SETTINGS on the setup diagnostic menu See Displaying Printing Configuration Settings on page 2 19 for information on restoring factory default settings Table 2 5 Configuration Settings Setup Menu 1 Configuration Item Setting Choices Comments Language English Spanish Italian German French Selects the language for printed and displayed text Swedish Dutch Finnish Danish Norwe gian Japanese Upper Alarms From lower alarm limit to 280 in incre Sets three upper heart rate limits ments of 5 Lower Alarms From 20 to upper alarm limits in incre ments of 5 Sets three lower heart rate limits In normal operation one set of limits is displayed and you can cycle through the three limits sets to select the set you want The first set consists of the upper and lower limits shown on the left in setup menu 1 The second set is the middle setting for each limit The third set consists of the settings for each limit shown on the right Time hh mm Sets the current time Date dd mmm yy Sets the current date Charge Done Tone On or Off ae d For ON the defibr
149. n Figure 2 7 2 Insert the paddles pads adapter cable plug into the paddles connector on the defibrilla tor as shown in Figure 2 8 2 10 Setup and Configuration Setup CAUTION Do not insert the plug into the connector without unlocking the connector lock see step 1 If you do not unlock the connector lock before inserting the plug the locking mechanism may be disengaged 3 Slide the paddle connector lock to the lock position to latch the plug in place Figure 2 7 A M1722 07 Opening Lock A Paddles Plug B Connector Lock Push the lock in the direction indicated by the arrow to move the lock to the unlock position shown Setup and Configuration Setup Figure 2 8 M1722 08 Connecting External Paddles Internal Paddles or PAD adapter Cable A Paddles Plug in Paddles Connector B Connector Lock Push the lock in the direction indicated by the arrow to move the lock to the lock position shown 2 12 Figure 2 9 Setup and Configuration Setup ECG Input Connector The ECG Input connector on the defibrillator is a 6 8 or 12 pin connector depending on the option purchased with the instrument For each connector option several different patient cables can be used for various ECG sources and applications Figure 2 9 shows an example of a patient cable M1722 09 An ECG Patient Cable Table 2 2 NOTE NOTE Set
150. n Figure 7 2 This description of the power supply covers detail at the functional block level The functional blocks that make up the power supply are AC DC Converter Battery Charger Control DC DC Converter Pssynclk 12 12 12V Regulator 12 DC DC PSon LINE 4 AC DC Converter NEUTRAL Convener 45V Regulator gt 5 gt Control lt lt SWADRIVE Controls M1722 42 Power Supply Block Diagram AC DC Converter The first stage of the power supply is the AC DC converter a forward converter that supplies VDC 13 5 16 0 volts to the DC DC converter the high voltage charger and the battery as the charging voltage Theory of Operation Power Supply Battery Charger Control SWADRIVE switch A drive closes the FET switch between the battery and the AC DC converter supplying VDC when the instrument is powered by the battery only When the instrument is turned on switch A is closed to provide battery voltage to the DC DC converters primary side Switch A is also closed when ACON is true AC is on and the instrument is off in order to charge the battery Rsense is a bank of resistors used to sense the amount of current being delivered to the battery when it is being charged When the battery supplies the system however Rsense is bypassed in the battery charger control circ
151. n algorithm of this product meets the requirements of Section 3 1 4 1 Pacemaker Pulse Rejection Without Over Undershoot of AAMI EC13 1983 Cardiac Monitors Heart Rate Meters and Alarms This product will not reject pace pulses as described in Section 3 1 4 2 Pacemaker Pulse Rejection With Over Undershoot of the same document Display size and type 5 inch diagonal 12 7 cm CRT for 4 seconds of ECG data on screen non fade fixed trace Scroll ing trace is selectahle Sweep speed 25 mm sec nominal Frequency response 0 5 to 40 Hz Heart rate display Digital readout on monitor from 15 to 350 BPM Heart rate alarms Three pairs of high and low heart rate alarm limits from 20 to 280 BPM On Option A01 limits are configurable ECG output 1 VimV Patient cable length Thermal Array Recorder Event summary 10 ft Stores and prints 3 seconds of pre critical event data and 8 seconds of post critical event data Option A01 for up to 28 events Data is retained after unit is turned off Annotates Time date HR ECG mode event marker defibrillator mode and selected energy Additionally on XL actual delivered energy peak current and patient impedance Speed 25 mm sec Paper size 50 mm by 30 m 100 ft Recorder mode May be configured to automatically document events and ECG during defibrillation episodes The recorder can be configured to run in either real
152. n their correct sequence to produce the four phases of the pulse frame 2 The LEDs must be lit to an intensity that optimizes the signal to noise ratio of the received light signal An 8 bit DAC U109 controls the LED driver U110 using positive and negative pulses of 0 125mA which trigger the red and infra red LEDs respectively The intensity of illumination is determined by the current of this triggering pulse 7 27 Theory of Operation Sp0 Board Grounded Section The grounded section of the SpO board is completely digital It is essentially a dedicated microcomputer and among other tasks performs the following 1 Communicates with the floating section through the two opto isolators 2 Calculation of the SpO gt saturation percentage and pulse rate 3 Processes any error conditions cable off light interference etc 4 Communicates with the main CPU board in CodeMaster via the option slot on the con trol board Dedicated timer circuits control the timing of events In addition the signals from the front panel keys SpO ON SpO ALARM are routed through the SpO board to the Control board Microprocessor System The processor is a Hitachi 6303 using external RAM and ROM The processor runs on a 2015 cycle which is controlled by the timer circuits U19 and U20 Once every 20mS the processor writes data to the Dual Port Ram U8 Communication An interrupt is generated every 20mS indicating to the Con
153. nd Maintenance Performance Verification Checklist Performance Verification Checklist Model number Serial number Test date Test technician Visual Inspection Disconnect the defibrillator from AC power and inspect for the following O Loose or missing hardware Frayed or damaged wiring H Mechanical damage H Evidence of liquid spill Dirt on the thermal printhead O Recorder roller wear Wear or damage to power cord and associated strain relief O Corroded or damaged electrodes H Damaged adaptors or patient cables Connect the defibrillator to AC power and verify the following The AC POWER and BATT CHRG indicators are lit The and indicators light momentarily when you turn the Energy Select control to Monitor On to turn on the defibrillator Enter the data to record in the format V x where x is p pass or f fail For example V p Calibration Test O Calibrate Defibrillator Enter the data to record in the format C x where x is p pass or f fail For example C p Defibrillator Test Conduct these tests in setup diagnostic mode Using only battery power set Energy Select to 100 test the following Performance Verification and Maintenance Performance Verification Checklist Mesec to charge aaaa H Delivered Energy bbb o Impedance cc O Peak Current dd Using only battery power set Energy Select to 360 test the following o MSec
154. nductor in the defibrillator or when a user suspects that the reported delivered energy is incorrect Equipment required Calibrated defibrillator test box 50 Ohm load 1 Measurement of delivered energy 2 Insulated adjustment tool To calibrate the internal delivered energy measurement perform the following steps 1 Calibrate the defibrillator capacitor by selecting the CALIBRATE DEFIB calibration procedure in the diagnostic service mode of the instrument Follow the instructions on the screen 2 Charge the defibrillator to 100 Joules and discharge into the test box Verify that the defibrillator delivered between 90 and 110 joules of energy into the test box Do not proceed if the defibrillator delivered less than 90 Joules or greater than 110 Joules instead refer to Chapter 4 Troubleshooting for detailed troubleshooting infor mation 3 If AC power is connected remove it now 4 Perform the procedures Removing the Battery and Opening the Defibrillator Chas sis However leave all front panel cables connected except for the optional pacer key board cable Dangerous voltages are exposed when performing this procedure Be certain not to touch the circuitry wiring or components while performing this procedure This procedure is to be performed only by qualified service personnel Removal and Replacement Adjusting the Internal Delivered Energy Calibration 5 Lift the base of the chassis up and reinstall the
155. nec tor board first remove the black rubber plug and then release the latch that secures the board in place See Figure 5 11 When reinstalling the battery connector board be sure that the alignment pin on the chassis bottom is centered in the hole on the board 5 Using the Torx T 10 screwdriver remove screws that fasten the high voltage charger and relay assembly to the chassis See Figure 5 11 Two screws are located on the high voltage charger board and two screws are located on the high voltage capacitor case 6 Disconnect the patient relay wires that connect the front end board Be certain to label each wire Removal and Replacement Removing the High Voltage Charger and Relay Assembly Figure 5 11 Removing the High Voltage Charger and Relay Assembly A Retaining screws B Standoffs 7 Four vertical standoffs are fastened to the high voltage charger board and are used to support the control board Using a 5 16 nut driver remove these standoffs 8 You can now remove the high voltage charger and relay assembly from the chassis 9 To remove the patient relay disconnect each of the wires leading from the patient relay to the assembly Be certain to label each wire Using a Torx T 10 screwdriver remove the single screw 5 20 WARNING Removal and Replacement Removing the High Voltage Capacitor 10 To remove the high voltage
156. ng instrument disassembly Use extreme caution while the instrument cover is removed The way that wires and cables are routed and dressed inside the chassis plays an important part in reducing electromagnetic and radio frequency interference emitted by the defibrillator When you disassemble any part of the defibrillator pay special attention to how cables and wires are routed When you reassemble the defibrillator be sure to route and dress all cables and wires as they were originally Tool Requirements You will need the following tools to perform the procedures given T10 and T15 drivers or Torx driver kit HP part no 5181 1933 5 16 nutdriver H insulated flat tip screwdriver o 1 pliers with insulated handles for discharging the CRT Small ruler with a centimeter scale for CRT adjustments O CRT adjustment tool HP part number 8710 1355 Be sure to work in a static free environment Use an electrostatic wrist band The work surface and area surrounding it must be static free Removing the Battery Perform the following procedure to remove the battery To avoid electrical shock hazard unplug the power cord from the AC outlet now 1 Turn off the instrument 2 Turn the defibrillator upside down on the workbench The battery compartment door is located in the bottom of the unit Using a flat tip screwdriver turn the two screws 1 4 turn counter clockwise to release the door See Figu
157. nimize the high frequency components that they would otherwise contain n Active low signal p Pulsed signals except clock signals which usually have cIk embedded in their names Refer to Figure H 1 to see how the assemblies interconnect Pin assignments are given for these assemblies Control board Front end board ECG Out connector ORS volume control Defibrillator connector Keypanel board Pacer keypanel board Pacer board Power supply board High voltage board Patient inductor CRT deflection board e SpO board Recorder interface board Battery board Battery HV capacitor Patient relay 50 ohm load ECG In connector AC line module Energy Select switch Beeper Appendix A Connector Pin Assignments Sp ecLZ LW Aejay 29 Ajquiassy 4o 9 UU0D qed SSS peo wyo 08 pieog pug 100144 40joeuuo uid 8 999 8 Jojonpu waed 9r Joyoede u iH uBiH pieog uorjeuuoo seyor YBIH 3 ui SSM Jo JequunN ae 0 9931
158. ns provided with the test box WARNING Avoid touching any metal surfaces on the defibrillator and do not touch equipment connected to the defibrillator during shock Dangerous high voltage exists on the paddles when the defibrillator is discharged Contact with this high voltage could cause death or serious injury ECG Tests This test verifies the operation of the leads and paddles ECG front end amplifiers and checks digital signal processor filtering The test also verifies communication between the front end board and the control board 3 14 Figure 3 4 Test Prerequisites Performance Verification and Maintenance Performance Verification Requires a calibrated ECG simulator for use with pads and leads Also requires an AAMI simulated patient load See Equipment List on page 3 32 for equipment information Testing the ECG To run the ECG test follow these steps 1 Select Sal i8 shown in Figure 3 4 in the setup diagnostic menu the display shows the information ECG TEST TW M SELECTED LEAD PADDLES NOTCH FILTER 50 or 60 HZ ON EADS STATUS GOOD PADDLES STATUS GOOD DSP STATUS GOOD DC OFFSET xxx mV PEAK TO PEAK DIAGNOSTIC UV MONITOR UV PCI ohms ON TURN OFF TO EXIT DIAGNOSTIC ECG Monitor Test S NOTCH FILT L ELECTED LE EADS STAT PADDLES ST
159. nted on the ECG strip by pressing both arrows on the wECG SizeA key simulaneously Data Communication Clocks and data are transmitted through opto isolators across the isolation boundary Data transmitted to the front end IC include control parameters such as gain Right Leg Drive lead etc Digitized ECG data and status information is transmitted from the front end IC to the DSP chip on the control board Pre Discharge Impedance An indication of paddles contact is given on the bar graph located on the external paddles PCI Patient impedance at 32 kHz is measured by the paddles front end IC This measured impedance value is used by the Defibrillator processor to determine the drive level to the PCI bar graph on the sternum paddle Paddles in Pocket To detect paddles in pocket the paddles front end IC applies a signal to the center tap of the 50 test load resistor the center tap is connected to the paddles front end through connector J63 If this signal is detected on the Vapex and Vsternum inputs the front end IC signals that the paddles are in the pockets Theory of Operation CRT Deflection Board CRT Deflection Board The CRT deflection board shown in Figure 7 7 performs these functions Vertical deflection Horizontal deflection Video amplification CRT bias voltage generation Figure 7 7 Vertical Deflection Vertical Deflection Horizontal Deflection
160. ntrol Board This procedure instructs you to access the chassis and also remove the CRT assembly and the pacer board 3 The front of the defibrillator chassis should be facing you with the high voltage capac itor to the left as shown in Figure 5 12 Using a 5 16 nut driver remove the three ver tical standoffs positioned next to the high voltage capacitor 5 21 Removal and Replacement Removing the High Voltage Capacitor Figure 5 12 M1722 22 Removing the High Voltage Capacitor A Retaining screws B Standoffs remove C Release clip open to the right D Hinge clips 4 Remove the two retaining screws that secure the capacitor cover on the left 5 Insert a flat tip screwdriver under the plastic latch on the left side of the capacitor and unhook the latch Open the plastic high voltage capacitor cover to the right and unhook the two plastic latches on the right of the cover 6 Disconnect the two wires one red and one white from the high voltage charger board On the charger board these jacks are labeled HV RED and HV WHITE 5 22 WARNING WARNING WARNING Removal and Replacement Removing the Patient Inductor Do not remove the resistor from the capacitor terminals To install the high voltage capacitor perform the procedure Removing the High Voltage Capacitor in reverse Refer to Figure 5 13 and Figure 5 14 for wire connections The
161. o the paddles and patient load and also carry control signals to and from the paddles The coil cords contain shielding to lower the RFI sensitivity of the high voltage discharge wires so they can also be used as low noise sensing wires for the paddles ECG circuit on the ECG front end board The Safety relay is in series with a 47 kQ resistor and both are located on the high voltage board This circuit slowly discharges the capacitor when its energy is not needed but still present i e aborted shock This circuit also bleeds off part of the charge if the user selects an energy setting the defibrillator charges to that setting and then the user selects a lower energy setting Damped Sinusoidal Waveform Parameters Table 7 2 Theory of Operation ECG Front End Board Specifications for Damped Sinusoidal Output Waveforms Local Resistance Waveform Parameter 25 Ohms 50 Ohms 100 Ohms lp amperes 960 gt 2 55a 660 gt gt 450 460 gt 2 250 amperes 38a gt l 2 0 0 180 gt 0 0 4 00 gt l 0 0 t Ims 1 60 gt t gt 0 50 142 gt t gt 0 40 1 25 gt t gt 0 30 tig ms 6 90 gt 110 23 0 9202 tio 2 3 10 19 60 gt tio gt 4 00 Ip Peak current of the waveform Absolute value of the reverse current of the waveform M zu and E is the selected energy that would be delivered to a 50 ohm resistive load t 10 to 90 risetime of the first lobe of the current waveform 50 Wavefor
162. oltage has become too low it instructs the System gate array to set a flip flop in the Switch A control circuit This turns off SWADRIVE to open Switch A and disconnect the battery If the defibrillator is connected to AC the instrument will continue to operate If the defibrillator is not connected to AC turning the energy select switch off and then on will restore operation for another one minute until the low battery condition again forces the instrument to shut down LED Drivers One driver provides power to the battery charging LED when AC power is on and the battery is installed the other driver provides power to the AC on LED when AC power is on Miscellaneous Analog Functions Miscellaneous analog functions performed on the control board are peak measurement A voltage winding in the Patient inductor samples discharge cur rent The I peak measurement circuit integrates and peak detects the sample to produce SIPEAK 5 V generation a voltage inverter converts 5 V to the low current 5 V used by some of the operational amplifiers ECG amplification an AC coupled voltage doubler that converts a CMOS level pulse width modulated signal from the Defibrillator Gate Array into the 10 V peak to peak 5 V to 5 V signal required by the 1000 1 ECG output Beeper filtering amplification filters and amplifies the TONE signal that comes from the System gate array Provides a 12 V peak to peak signal to drive
163. ons Parameter Specification Dimensions x h defibrillator 15 75 x 12 75 x 8 0 40 05 cm x 32 39 cm x 20 32 cm cart 22 x 34 x 34 5 55 9 cm x 86 3 cm x 87 6 cm Weight defibrillator 24 Ibs 10 kg includes external paddles battery and recorder paper cart 82 165 37 kg Chemical resistance cleaners Withstands the following isopropyl alcohol except leadwires and patient cable mild soap and water chlorine bleach and water 30 ml l of water The main battery will be damaged if stored for extended periods at a temperature greater than 50 C Environmental Specifications Parameter Specification Temperature operating 0 to 55 C 32 to 131 storage 20 to 70 C 4 to 158 1 3 Introduction Specification Data Table 1 2 Environmental Specifications Parameter Specification Humidity operating 15 to 95 RH non condensing storage 15 to 95 RH non condensing Pressure altitude operating To 15 000 ft 4600 m storage To 15 000 ft 4600 m Battery must be removed below 0 C 32 F and above 45 C 113 F Table 1 3 Electrical Specifications Parameter Specification Defibrillator Output energy delivered 2 3 5J 1d 7 10J 2J 20 30J 4 50 70 100 150 200 300 and 360J 15 Waveform Damped sinusoidal Lown Charge control Push button on apex paddle and on front panel Charge time Ba
164. ook the connector Then separate the rubber keypad from the circuit board 5 When installing a new keypanel circuit board you need to configure the circuit board for use with the correct defibrillator model If you are installing the circuit board in a model M1722A B defibrillator monitor which has been manufactured prior to June 200 leave the circuit board unchanged and install it in the unit If you are installing the circuit board in a M1723A B defibrillator monitor you will need to modify the circuit board See Figure 5 4 On the back side of the circuit board is a small hole with circuit etch running along the edge of the board To configure the circuit board for use in a M1723A B cut the circuit etch with a pair of diagonal cutters Then install the circuit board in the unit Removal and Replacement Removing the Pacer Keypad Assembly To assemble and install the keypanel assembly perform the previous procedure in reverse order Figure 5 4 cas M1722 52 Configuring the Keypanel Circuit Board A Cut trace here to configure for a model M1722B with Option 01 Removing the Pacer Keypad Assembly The pacer keypad assembly consists of a small circuit board and the rubber keypad Perform the following procedures and steps 1 Perform the procedures Removing the Battery and Opening the Defibrillator Chas sis 2 Disconnect the cable running between the control board
165. or Replace patient relay Replace high voltage board Replace HV board Unit does not deliver energy no failure message occurs Patient Relay failure Replace Patient Relay 4 19 WARNING Table 4 14 Troubleshooting Troubleshooting Tables The high voltage storage capacitor can store lethal amounts of energy Be sure that this capacitor is discharged before touching high voltage components such as the high voltage capacitor patient inductor patient relay or patient cable connector To discharge the high voltage capacitor 1 Be sure to wear safety glasses while discharging the capacitor 2 In diagnostic mode make sure that the Available Energy is 0 the Energy Select control is in the Monitor On position 3 Turn the Energy Select control to Off Standby 4 Wait 30 seconds before opening the unit 5 After accessing the chassis as described in step 1 below short the terminals of the high volt age capacitor Wait one hour before servicing the unit You can then proceed using a screw driver with an insulated handle to short the capacitor terminals Pacer Problems Symptom Cause Corrective Action ORS not detected ORS is not in specs These specs are ORS amplitude 0 5 mV 5 0 mV RS width 40 mSec 120 mSec AutoGrain setup Increase ECG gain Pacer is in Fix Mode Change pacer to Demand Mode Heart is not captured Output current is too low Increase output current until heart is capture
166. or functional groups each centered on one of the three processors Other functions on the control board include the power supply interface and three analog functions Defibrillator Processor Functional Group The Defibrillator processor handles the keyboard and indicator interface system monitoring and with the System gate array defibrillation control 7 3 Theory of Operation Control Board Defibrillation Control Defibrillation control includes the charging and discharging operations Charging The Defibrillator processor detects the closure of the paddles charge key finback at one of the processor s direct analog inputs or it detects the closure of the front panel charge key fnCHARGEKEY by reading its value from the System gate array After a debounce time the key closure is considered valid and the processor begins a charge operation The level of charge is determined from the value of four bits from a grey coded rotary switch fENSELO 1 2 and 3 also read from the System gate array Before charging begins the Defibrillator processor instructs the System gate array to open the safety relay which is located on the high voltage board The System gate array asserts fOPNSFRLY open safety relay which commands the high voltage board to remove the 47 kQ safety resistor that is normally across the High voltage capacitor A charge operation begins when the Defibrillator processor instructs the System gate array to asse
167. ot be accurate the defibrillator will use a nominal value for the charge capacitor CALIBRATE DEFIB The defibrillator has not been calibrated or the calibration value has been lost The defibrillator will still function but charge energy levels may not be accurate the defibrillator will use a nominal value for the charge capacitor Error Codes Table 4 1 describes the errors that can appear in the error log and suggests solutions Replace the board assemblies in the order shown After replacing a board assembly check to see if the problem has been resolved If the problem is still present replace the next board assembly listed When the instrument is working properly clear the error log See Clearing the Error Log on page 4 9 for detailed information If more than one defibrillator error occurs the codes for those errors are summed and printed in hexadecimal form The hexadecimal sum of any combination of these error codes yields a unique number For example an error code of can only be formed by the sum of error codes 080 020 008 and 004 Table 4 1 Troubleshooting The System Log Error Codes Error Code Error Description Possible Solution 001 The HV capacitor charges at less than 6 1 Replace high voltage board joules second 2 Replace control board 3 Replace HV capacitor 002 The HV capacitor charges to more than 1 Replace control board 120 of the desi
168. ove it To install the pacer board perform the procedure Removing the Pacer Board in reverse order Removing the Power Supply Assembly To remove the power supply assembly perform the following procedures and steps 1 Perform the procedures Removing the Battery and Opening the Defibrillator Chas SIS 2 The power supply assembly is positioned vertically at the back of the chassis Discon nect the AC input cable at the right of the power supply assembly See Figure 5 6 In Figure 5 6 the CRT assembly is shown removed for purposes of clarity only 3 Atthe power supply assembly on the left disconnect the flat ribbon cable that runs to the control board and to the high voltage charger board Using a Torx T 15 screwdriver remove the two screws that secure the power supply assembly to the chassis They are located on the back side of the supply To install the power supply assembly perform the procedure Removing the Power Supply Assembly in reverse order Removal and Replacement Removing the CRT Assembly and 5 0 Board Figure 5 6 1722 19 Removing the Power Supply Board A Ribbon cable disconnect at power supply B AC input cable C Retaining screws behind supply Removing the CRT Assembly and SpO Board To remove th
169. p erly with approved thermal paper Dirty sensor lens Clean sensor lens Defective sensor Replace recorder board Defective sensor circuit Replace control board Wavy diagonal lines in recorder self test or distortion of print outs in the time axis Improper meshing of gears in drive assembly or door assembly Replace recorder drive assembly or door assembly Replace control board Defective communication between recorder and control board Replace control board Message CHECK RECORDER Door is ajar Close door Paper installed incorrectly Re install paper Dirty sensor lens Clean sensor lens Defective communication between recorder and control board Check cables and connections between recorder and control board Replace recorder assembly Replace control board Defective sensor assembly Replace recorder board Paper moves but printing is faint or absent Door improperly latched Check door latch Paper loaded incorrectly or non approved or non thermal paper installed Make sure defibrillator is properly loaded with approved thermal paper Insufficient leaf spring tension or printhead out of position Check leaf spring on printhead for platen pressure Defective printhead or printhead cables Check printhead cable connector Replace printhead Defective recorder board cable con
170. paddles see the Maintaining the Defibrillator chapter in the CodeMaster XL Defibrillator Monitor User s Guide 3 31 Table 3 5 Performance Verification and Maintenance Equipment List Equipment List Table 3 5 lists specifications that must be met by the equipment used to verify performance of the defibrillator This equipment is commercially available Equipment List Equipment Test Calibrated Leads ECG simulator ECG simulation test Specifications 2 accuracy Calibrated Paddles ECG simulator ECG simulation test 2 accuracy AAMI patient termination ECG simulation test 47 nF in parallel with 51 K ohms together in series with each lead wire Defibrillator test box Delivered energy level test Load resistance Measurement range Maximum energy Maximum voltage Maximum current Measurement accuracy gt 20 joules lt 20 joules Cardioversion measurement range 50 Q 1 non inductive 2450 joules gt 6000 V 2120A lt 2 of reading damped sinusoidal waveform lt 0 4 joules damped sinusoidal waveform 150 to 150 ms Pacer tester Load impedance Current measurement accuracy 10 mA 50 mA 50 mA 200 mA Rate measurement accuracy 40 180 ppm Waveform duration accuracy 4000 2mA lt 4 lt 0 5 ms In addition test load is available for testing the external pads adapter HP M1781A 3 32 Performance Verification a
171. ponent level repair is extremely difficult due to the extensive use of surface mount technology and the high parts density on the circuit boards Unauthorized component replacement can impair defibrillator performance Troubleshooting Guide The following information suggests ways of using the information in this manual to troubleshoot defibrillator failures Verify the Failure Before troubleshooting the defibrillator make sure that the failure is not the result of improper use See the CodeMaster XL User s Guide for a condensed description of controls and their use The built in diagnostic tests are useful for verifying some failures See Using Setup Diagnostic Tests in Troubleshooting on page 4 2 for a description of these tests Check the Error System Log Print the error log to see if it contains an error code You can clear the error log operate the defibrillator and repeat the failure and then print the error log to see if the failure created a new error code See The System Log on page 4 4 for detailed information on error codes Troubleshooting Introduction Using the Troubleshooting Tables Check to see which functional areas of the defibrillator are affected The troubleshooting tables organize symptoms by type audible displayed and symptoms specific to a functional area of the defibrillator In the tables find the symptoms that apply to the instrument failure Try the solutions suggested in th
172. r Pin Signal Pin Signal 1 Cable Shield NIC Shield 2 RA A RA 3 LL C LL 4 LA B LA 5 V D Chest 5 wire 6 RL E RL 5 wire 7 LREF F LREF A 22 Appendix A Connector Pin Assignments Front End Board A 23 Table H 18 Table H 19 Appendix A Connector Pin Assignments Front End Board Front End Board J1 to ECG In Connector 12 pin ECG Front End Board J1 ECG In Connector Pin Signal Pin Signal 1 cable Shield NIC Shield 2 RA 2 RA 3 LL 5 LL 4 LA 7 LA 5 V 6 Chest b wire 6 RL 1 RL 5 wire 7 LREF C LREF Signal Definition RA Right Arm LL Left Leg LA Left Arm V Chest RL Right Leg Front End Board J61 J62 J63 J65 J66 Front End Board Connects To Pin Signal J61A STERNUM 1 HV RED Defibrillator connector J1 S HI VOLTAGE STERNUM J61B STERNUM 2 HV RED Patient relay OUTPUT COMMON 1 J62A APEX 1 HV WHITE Defibrillator connector J1 A HI VOLTAGE APEX J62B APEX 2 HV WHITE Patient relay OUTPUT N 0 2 J63 PADINPOCKETS HV BLACK 50 ohm load TAP paddles in pocket detection J66 PACER HV WHITE Pacer board P51 PACER RETURN HV WHITE A 24 Table H 20 Appendix A Connector Pin Assignments ECG Out Connector ECG Out Connector The ECG Out connector connects to J3 on the control board See Table H 4 for pin assignments QRS Volume Control The QRS volume control connects to J4 on the control board See Table H 5 for pin assi
173. r RAM 2 Replace 5 0 board 5000A Hardware failure on the 5 0 module 1 Cycle 5 0 power 1 Replace 5 0 board 5000B The 5 0 module processing units cannot 1 Cycle 5 0 power communicate 1 Replace Sp0 board 5000D Software problem in the 5 0 module 1 Cycle 5 0 power 1 Replace Sp0 board 5000E The monitor cannot communicate with the Cycle 5 0 power 5 0 module 1 Replace Sp0 board If an error repeats use the appropriate setup diagnostic test to help locate the failure The setup diagnostic tests are described in Chapter 3 Performance Verification and Maintenance Clearing the Error Log After servicing the defibrillator monitor it is important to reset clear the error log This process clears the entries for Error Code and Error Occurred To clear the error code from the error log follow these steps 1 Place the defibrillator in diagnostic mode 2 On the setup diagnostic menu move the highlight bar over PRINT LOG 3 Press the and HR Alarm keys simultaneously Turn the Energy Select control to the Off Standby position to exit the setup diagnostic menu 4 9 Troubleshooting Troubleshooting Tables Troubleshooting Tables The troubleshooting tables in this section help you to locate a fault and correct it The following tables list errors and failure symptoms that can occur at power on during normal operation or as a result of setup diagnostic tests The tables def
174. r board encodes printhead resistance into a volt age fCAL The Defibrillator processor converts fCAL to a digital signal used by the Monitor processor to set the duty cycle for printhead writes Paddles identifi Defibrillator processor reads the voltage value on the cation fPADID line to determine the type of paddles connected to the instrument Table 7 1 lists the voltage levels for the paddles types Theory of Operation Control Board Table 7 1 PADID Voltage Value vs Paddles Type fPADID Paddles Type lt 05v Internal Paddles 20 5 lt 3 V External Paddles 23 0 lt 4 V External Pads 24 0 V None The multiplexed measurements are Peak current The Defibrillator processor reads the value on the SIPEAK line which is a sample of the peak discharge current delivered to a patient One volt at the A D converter indicates 20 5 amperes of peak current Pacer current The pacer current is sampled on the pacer board and deliv ered to the control board on the fPACMES line Supply voltages The control board monitors the following voltages e Battery VBATT 12 V 12V 5 V 5V VDC VDC2 Defibrillator The Defibrillator processor reads fDEFIBSTAT an analog status signal generated by the high voltage board to provide status information Normally the status is good when fDEFIB STAT is gt 2 5 V and error when lt 2 5 V Immediately follow ing a shock while the patient relay is still closed status is
175. r return to the setup diagnostic menu Press both arrows on the v ECG Size a key simul taneously To exit the setup diagnostic menu or exit a test Turn the Energy Select control to Off Standby Performance Verification Verify the performance of the defibrillator every six months and after servicing The procedures listed below make up performance verification For daily check of the defibrillator see Operational Checks in the CodeMaster XL Defibrillator Monitor User s Guide The performance verification checklist at the end of this chapter summarizes the tests you should perform to verify the defibrillator s performance These are some suggested uses for this checklist Make copies of the blank checklist then fill out a copy each time the defibrillator is tested Attach the recorder test output simulator ECG trace and error log printout to the com pleted checklist and file with the defibrillator s permanent maintenance record Visual Inspection Before beginning the inspection turn the Energy Select control to Off Standby and unplug the power cord from the wall outlet Then carefully examine the defibrillator and its accessories for the following Worn or damaged power cord Loose or missing hardware 3 8 Performance Verification and Maintenance Performance Verification Mechanical damage Evidence of liquid spill Worn recorder roller Worn or damaged cables or connec
176. r whenever the user suspects that PCI indication is wrong Perform the following steps to calibrate PCI 1 Attach the paddle set to the defibrillator 2 Access the setup diagnostic menu 3 Select TEST ECG in the setup diagnostic menu 4 Press C Sync and HR Alarm simultaneously so that OFF appears to the right of the PCI value 5 While shorting the paddles together press C Sync and HR Alarm simultaneously The PCI value should now indicate 0 2 ohms and ON should now appear next to the PCI value Turning the PCI indicator off then on again calibrates it to 0 ohms If you do not short the paddles together you will miscalibrate the PCI indicator 6 Replace paddles in pockets The PCI value with the paddles in the pockets should be between 20 and 100 ohms the PCI value varies because of inductance in the circuit Auxiliary Function Tests CRT Test This test lets you check the operation and alignment of the CRT Figure 3 5 Performance Verification and Maintenance Performance Verification Test Prerequisites A ruler that measures in millimeters is required to measure the display size Testing the CRT To perform the CRT test follow these steps 1 Select TEST CRT in the setup diagnostic menu the display shows the information shown in Figure 3 5 104 mm 5 HEWLETT PACKARD NOTE m M1722 1
177. rased Save the AES printout with the measurement matrix attached at the end of the strip and contact your service representative The factory default for the measurement matrix print option is disabled A title is printed as the top line for example MEASUREMENTS 27 MAR 96 12 37 20 where the time date is the same as the decision event time date MEASUREMENTS 27 MAR 96 12 37 20 DO D1 D2 D3 M0 X X X X X XX Ml XX XXXX XXXX XXXX M2 XX XX XX XX XX XX XX M3 XXX XXX XX XXX XX M4 XXX XXXX XXXX 5 M6 XXXX XXXXX M7 XXX XX XX XX XX XX XX M8 XXX XXX XX XXX XX M 9 XX XXXXX XXXXX XXXXX The matrix rows are for feature measurements and are labelled MO through M9 The columns record data for internal algorithm decision points are labelled DO through D3 The measurement matrix printout can be enabled or disabled by entering diagnostic mode setup menu and simultaneously pressing the SYNC and ANALYZE keys This key sequence will toggle the measurement matrix print option from off to on and on to off The status of the measurement matrix print option is recorded in the system log options area The software revision of the defibrillator should be 57 00 52 33 greater Measurement Matrix can be turned ON after the unit has been powered off and then Powered on again It will still print the Event Summary with the mea
178. re 5 1 Removal and Replacement Opening the Defibrillator Chassis 3 Disconnect the battery cable and lift the battery from the unit Figure 5 1 B A e B D M1722 01 Accessing the Battery A Battery compartment door B Retaining screws turn C Bottom side of defibrillator D AC power receptacle E Equipotential connector Opening the Defibrillator Chassis Perform the following procedure to open the defibrillator chassis WARNING Before disassembly check the defibrillator charge Using the Defibrillator Test on page 3 11 verify that the available energy is zero 5 3 Removal and Replacement Opening the Defibrillator Chassis 1 Remove the paddles and the paddles connector 2 Perform the procedure Removing the Battery 3 Using a Torx T 15 screwdriver remove the six screws that secure the upper and lower parts of the chassis See Figure 5 2 Figure 5 2 e e Ns A B E M1722 14 Opening the Defibrillator Chassis A Location of chassis screws 4 Turn the chassis upright This will cause the six screws to fall out of the chassis Per form this step slowly to avoid losing the screws Grasp the handle securely and slowly tilt the chassis onto its back and then onto its feet Collect the screws and save for reas sembly CAUTION Be careful when opening the top cover ribbon cable
179. red voltage 2 Replace high voltage board 004 Unexpected drop in HV capacitor voltage 1 Replace high voltage board 2 Replace control board 3 Replace HV capacitor 008 Unexpected voltage on HV capacitor 1 Replace high voltage board 2 Replace control board 010 The safety relay has failed 1 Replace high voltage board 2 Replace control board 020 The supply voltage is outside the nominal 1 Replace power supply range 2 Replace control board 040 A patient relay drive failure was detected 1 Check patient relay coil resistance If 400 outside nominal range 3 ohms 1 440 ohm replace patient relay 2 Replace high voltage board 3 Replace control board 080 A power on failure has occurred Replace control board 100 Defibrillator control firmware failure has 1 Senderror log and description of failure Monitor Codes 10001 occurred 1xxxx Monitor firmware failure has occurred to the factory 2 Cycle power If problem persists replace control board For most monitor error codes the cause is probably the control board 1 Senderror log and description of failure to the factory 2 Cycle power If problem recurs replace control board 10002 Defibrillator timeout does not return shock information 1 Send error log and description of failure to the factory 2 Cycle power If problem recurs replace control board 10003 Defibrillator timeout does not accept con figuration 1 Senderror log and desc
180. relay Table H 30 J8 Patient relay Table H 30 plo 1722 6010 Battery board Table H 31 Table H 30 High Voltage Board J3 J5 J6 J8 Pin Signal Connects To J3 1 HV CAP HV capacitor HV CAP RED HV P O 0160 7577 J3 2 HV IND IN Patient inductor INDUCTOR IN RED P O M1722 82800 J5 1 VDC Patient relay PRELAY DRIVE P O M1722 82806 J5 2 AGROUND Patient relay GROUND J5 3 RELAYRTN Patient relay PRELAY DRIVE J6 1 HV CAP HV capacitor HV CAP WHITE HV P O 0160 7577 J6 2 PR COM 2 Patient relay HV CAP COMMON 2 P O M1722 82806 J8 PR N C 2 Patient relay CHARGER N C 2 P O M1722 82806 Signal Definition HV CAP Positive terminal of the high voltage capacitor flying lead terminated by a 0 187 female faston A 32 Table H 31 Signal HV IND IN VDC RELAYRTN HV CAP PR COM 2 PR N C 2 Appendix A Connector Pin Assignments High Voltage Board Definition Input side of the waveshaping inductor AC DC converter voltage Relay Return Negative lead of HV capacitor flying lead terminated by a 0 187 female faston Patient Relay Common 2 Patient Relay Normally Closed 2 High Voltage Board to Battery Board Signal Via Cable Assembly Connects To nBATPRES Blue Battery board BAT SENS VBATT Red Battery board BAT FUSE AGROUND Black Battery board BAT Signal Definition nBATPRES Asserted low when a battery is connected VBATT Fused battery voltage AGROUND Return path for ba
181. ription of failure to the factory 2 Cycle power If problem recurs replace control board 4 7 Table 4 1 Troubleshooting The System Log 4 8 Error Codes Error Code Error Description Possible Solution 10004 Defibrillator timeout does not accept ECG 1 Send error log and description of failure data to the factory 2 Cycle power If problem recurs replace control board 3 Replace front end board 10005 Clock timeout Time Out Done clock is not Replace control board ready 10006 Reserved 10007 Reserved Front End Codes 2XXXX 20001 Sequential data error Cycle power If problem recurs replace front end board 20002 Total data error 1 Replace front end board 2 Replace control board 20003 DSP timeout Back up Timer interrupt Replace control board 20004 Front end hard failure Replace front end board Pacer Codes 30001 30002 30003 30004 30005 Processor Codes 40001 40009 3xxxx Pacer failure Control board failure 1 Change pads and check pads adapter cable 2 Cycle power on instrument 3 Restart the pacer If error reoccurs 4 Replace pacer board 5 Replace the control board Replace control board Table 4 1 Troubleshooting The System Log Error Codes Error Code Error Description Possible Solution 8 0 Codes DXXXX 50006 The Sp0 sensor is broken Attach new sensor and cable 50009 Unable to communicate with the dual port 1 Cycle 5 0 powe
182. rn the defibrillator on by turning the Energy Select switch to Monitor On 2 Press the SpO On Off button to turn SpO monitoring on 3 Verify that no error messages appear on the display 4 Press the SpO On Off button to turn SpO monitoring off SpO Functional Test 1 Attach an SpO sensor to a normal healthy person Refer to the sensor packaging for directions on how to attach the sensor 2 Plug the sensor into the defibrillator If you are not using a Hewlett Packard sensor you must use the M1900B adaptor cable 3 Turn the Energy Select switch to Monitor On 4 Press the SpO On Off button 5 After 15 seconds verify that the display shows SpO reading and a pulse rate 6 Verify that the Pulse Amplitude Indicator moves up and down 7 Verify that the SpO reading is between 95 and 100 If the SpO reading is much below 95 and the person is healthy the reading indicates a monitor or sensor error 8 Press the SpO On Off button to turn SpO monitoring off 3 25 Performance Verification and Maintenance Performance Verification Parameter Function Tests HR Alarm Test To test the HR Alarm an ECG simulator is needed 1 Runa normal ECG at 60 Hz 2 Press HR Alarm verify alarm setting in upper right corner of the display 3 Change the ECG simulator to get beyond both the upper and lower HR Alarm limits 4 After a few seconds approximately six seconds the recorder will print a report and the alarm will sound Par
183. rocessing 7 7 display control 7 7 monitor processor interrupts 7 7 RAWRST 7 10 old paper roll removing 2 5 on screen defibrillator monitor messages 4 11 on screen pacer messages 4 13 on screen system messages 4 11 opening the chassis 5 3 operating from AC power 2 1 from battery 2 1 operation problem messages 4 15 option slot interface 7 7 options ECG cable connector 1 12 country 1 8 documentation 1 13 hardware 1 12 pacer 1 11 paddles and pads 1 11 power cords 1 10 sync cable 1 12 options list 1 7 1 13 ordering information parts 6 2 pace pulse detection 4 4 defined 2 24 Index iii Index enabling disabling 2 24 pacer test 3 23 testing 3 25 pacer board 7 23 isolated supply 7 23 pulse control 7 23 removing 5 9 pacer current 7 6 7 24 pacer keypad removal 5 8 pacer pulse control 7 23 pacer test 3 25 paddle assembly parts list 6 26 paddle set adult pediatric anterior anterior 2 7 internal 2 9 pediatric 2 7 standard external adult 2 7 standard external pediatric 2 7 paddles charge key 7 4 identification 7 5 input protection 7 19 plug 2 11 2 12 paddles and patient cables installing 2 7 paddles connector uses 2 7 paddles pads installing 2 10 paddles pads connector locking 2 10 paddles in pocket 7 19 pads external adhesive 2 8 paper loading 2 5 paper removal tag using 2 5 paper roll grid side 2 5 installing 2 5 orientation 2 5 par
184. roubleshooting Troubleshooting Tables On screen Defibrillator Monitor Messages Message USE LEADS Cause Paddles are connected to the defibrillator and Possible Solutions 1 was pressed when PADDLES was selected 1 Use PADS or select LEAD I II or instead of PADDLES Press Sync to remove the defibrillator from sync mode 2 Defibrillator is in sync mode and PADDLES is selected 2 Use PADS or select LEAD I II or IIT instead of PADDLES 3 Defibrillator is in Defib mode and PAD DLES selected when leads are attached to the patient 3 Use PADS or select LEAD I II or IIT instead of PADDLES On screen Pacer Messages Option installed Message Cause Possible Solutions ATTACH Attach the pacer pads a Pads adapter cable is attached was ee pressed and pads are not attached was pressed and pads are not attached NO PADS Pacer is on and one of the following occurs Attach pads for pacing 1 No pads adapter attached 2 Paddles attached 3 Internal paddles attached 4 BDefective Pad Adapter Cable Replace Pad Adapter Cable PACER Pacer cannot deliver the required current Troubleshoot pacer FAILURE PADS OFF Pads adapter cable is attached and a pad is off Attach pads for pacing High DC Offset voltage Wait for DC Offset bleeding up to 3 minutes Defective Pads Adapter Cable Replace Pads Adapter Cable STOP PACER Anattempt was
185. rt the logic signal f nCHGEN and give the analog signal fCHRATE a non zero value These signals go to the high voltage board which begins charging at the specified rate While the charging proceeds the Defibrillator processor monitors the energy present in the High voltage capacitor by sampling the capacitor voltage fVCAP When the processor is satisfied that the proper energy is stored in the High voltage capacitor it turns the charger off by placing a zero value on the fCHRATE line and de asserting fCHGEN As charge bleeds off the High voltage capacitor the processor will periodically request refresh charges from the charging circuitry If the requested charge is lowered the safety relay is used to bleed off charge to the lower level Theory of Operation Control Board Discharging A shock request occurs when both the Sternum and Apex Shock keys are closed asserting fnDISCHGS and fnDISCHGA These two signals are NORed to generate fHVDISCHG which is routed to both the Defibrillator processor and the high voltage board for redundancy purposes The Defibrillator processor performs the shock operation by issuing a shock request command to the System gate array When this happens the System gate array takes over It begins a waiting period approximately 1 msec that allows the processors to prepare to be reset When the waiting period is over all processors are reset The System gate array then asserts fPRDRV which when combined wi
186. rting not off plug LOW BAT Defibrillator is not connected to AC power and Connect the unit to AC power TERY the battery voltage is below 11 8 volts DC Message remains with AC power applied and AC Troubleshoot power supply or battery POWER LED is lit See Table 4 9 Message remains with AC power applied and Do each as necessary POWER LED is not lit 1 Check power cord 2 Check power supply AC connec tions and cable to control board 3 Replace power supply 4 Replace control board NO PADDLES Paddle set is not connected to the defibrillator Attach external paddles internal pad dles or pads adapter as required Paddles set is attached but connector lock isnot Push paddle connector lock to the in lock position lock position Paddles set is properly attached but the paddles Replace paddles set set is defective SETUP LOST The memory that stores the setup has been cor 1 Restore setup by changing a rupted Perform only the steps required to resolve Check after each step parameter Then verify that the SETUP LOST message is gone 2 Replace control board Reinstall battery do not connect AC power Turn on instrument and change a setup parameter Verify that the SETUP LOST message is gone 3 Replace lithium battery Reinstall main battery do not connect AC power Turn on instrument and change a setup parameter Verify that the SETUP LOST message is gone Table 4 4 Table 4 5 T
187. s Paddles Paddles Connector ECG Input M1722 51 Connector Sync Cardioversion Test Setup 3 Connect the sync interface cable between the external monitor s DEFIB SYNC output and the defibrillator ECG In connector Set up the external monitor to monitor LEAD II On the defibrillator select LEAD II as the ECG source Put the defibrillator test box into cardioversion test mode Press on the defibrillator to put the instrument in sync mode The ECG signal should have synchronization markers highlighting the ECG trace Adjust ECG SIZE if necessary Turn the Energy Select control on the defibrillator to 50 joules Place the paddles on the defibrillator test box paddle pads press the charge button on the apex paddle Wait for the Charge Done indicators on the defibrillator 10 Press and hold both shock buttons on the paddles until the defibrillator discharges 3 27 CAUTION Performance Verification and Maintenance Preventive Maintenance Safety Tests The safety tests listed below are performed at the time of manufacture to assure compliance with these standards IEC 601 1 IEC 601 2 4 UL 544 and CSA 22 2 No 601 1 Chassis to ground resistance within an expected range of 0 1 ohm Ground wire leakage current within an expected range of 500 uA Enclosure leakage current within an expected range of 100 uA Patient lead leakage current source leakage to ground within an expecte
188. s and ground wires connect the top and bottom parts of the chassis 5 While facing the front of the instrument partially open the top right of the chassis If the instrument is equipped with the pacer option disconnect the cable assembly attached to the right most connector on the control board just beneath the CRT Open the chassis top to the left Rest the chassis top on its side to avoid stressing cables Removal and Replacement Removing the Recorder 6 Atthe control board disconnect the ribbon cable that runs from J2 on the control board and the recorder Also disconnect the ribbon cable that runs from J6 on the control board and the keypanel assembly Make a note of where these cables connect 7 Ifthe SpO option is present at the SpO board on the left side of the CRT disconnect the cable from the SpO board to the keypanel control board 8 Atthe front end board disconnect the black wire that runs from the top cover to the BLK LOAD RES connector on the front end board You can now separate the chassis top and bottom Removing the Recorder To replace any of the components on the recorder you must first remove the recorder from the defibrillator chassis This procedure also includes instructions for removing the recorder sliding door The recorder can be removed without opening the defibrillator chassis Perform the following steps 1 Atthe recorder remove and save the plastic label that covers the two screw hol
189. sed upon the principle of pulse oximetry whereby arterial blood flow is detected optically though the tissue As the blood becomes more heavily oxygenated the transmittance of red light increases An algorithm comparing the transmittance of red and infra red light provides an indication of oxygen saturation The pulse oximeter circuit design eliminates the effects of absorption from tissue bone and venous blood by isolating the pulsatile component of the signal To measure the SpO level an adaptor is placed on the patient The adaptor holds two LEDs The LEDs emit red and infra red light against one side of the patient s finger the nose or toe are other sites sometimes used The adaptor holds a photo diode along the opposite side of the patient s finger The photo diode is able to register small changes in the transmittance of light through the finger The adaptor containing the LEDs and the photo diode is referred to as the SpO gt sensor The sensor is connected to the device via a cable and a connector The output from the sensor goes directly to the pulse oximeter parameter board SpO board The SpO board is located next to the CodeMaster CRT and is connected to the main CodeMaster control board via the option connector slot The SpO board is divided into two distinct circuits electrically floating and electrically grounded These circuits are connected by two high voltage optocouplers for data transfer and a power transformer for pow
190. shing performance or use of this material This product may contain remanufactured parts equivalent to new in performance or have had incidental use WARNING As with electronic equipment Radio Frequency RF interference between the defibrillator and any existing RF transmitting or receiving equipment at the installation site including electrosurgical equipment should evaluated carefully and any limitations noted before the equipment is placed in service Monitoring during quiescent periods of electrosurgery is possible but electromagnetic interference generated by electrosurgical tools during operation is sufficient to mask cardiac signals A momentary recovery period is required for the monitor to return to normal operation and will be longer if the diagnostic monitoring mode is used Pads or electrodes should be placed as far from the surgical area as reasonable while still performing normal function to minimize the possibility of burns Radio frequency generation from electrosurgical equipment and close proximity transmitters may seriously degrade performance of the CodeMaster XL defibrillator monitor Hewlett Packard assumes no liability for failures resulting from RF interference between HP medical electronics and any radio frequency generating equipment at levels exceeding those established by applicable standards Classified by Underwriters Laboratories Inc with respect to electrical shock fire and mechanical ha
191. shooting High Voltage Charger The high voltage charging circuit charges the High voltage capacitor by means of a variable frequency high voltage flyback DC DC converter When the charging circuit is at room temperature and powered by a fully charged battery fast charge occurs In this mode the defibrillator can charge to 360 joules in under five seconds When at room temperature but powered by AC only battery not installed normal charge occurs In this condition the instrument will charge to 360 joules in less than 15 seconds The charging of the High voltage capacitor is electrically isolated from grounded portions of the instrument A charge begins when the signals OPNSFRLY nCHGEN and CHRATE are asserted When the High voltage capacitor reaches the proper energy setting the Defibrillator processor de asserts the signals nNCHGEN CHRATE to stop the charge Figure 7 4 Theory of Operation Patient Circuit Patient Circuit The patient circuit shown in Figure 7 4 consists of the following components e High voltage capacitor 35 UF 5 1 kV Patient inductor Ipeak Transformer 50 mH 11 Q Patient Relay Double pole Double throw Mechanical Relay Coil Cords Connectors and Discharge Paddles Safety Relay Single pole Single throw Mechanical Relay Patient Load either a patient or the internal 50 Q test load resistor Safety Relay Measurement HV Charger Patient Rela
192. ssembly External Paddles Connector Assembly Parts List ie Description Part No 1 Coil cord M1746 61600 17 Screw 4 40 tapping qty 4 0624 0600 18 Body connector M1722 47203 19 Screw 2 56 tapping qty 2 0624 0612 20 Latch sliding white M1746 47307 Latch sliding yellow M1746 47397 Latch sliding black M1784 45001 21 Cover paddle connector white M1722 47208 Cover paddle connector yellow M1722 47298 Cover paddle connector black M1784 47600 6 28 Parts Lists Calling for Assistance Table 6 10 External Paddles Connector Assembly Parts List add Description Part No 22 Retainer strain relief white M1748 47207 Retainer strain relief yellow M1746 47297 Retainer strain relief black M1784 45002 Table 6 11 Supplies List Description Part No Patient Cables Patient cable 6 pin 3 wire AHA M1731A Patient cable 6 pin 5 wire AHA M1732A Patient cable 8 pin 3 wire AHA M1733A Patient cable 8 pin 5 wire AHA M1734A Patient cable 8 pin 3 wire IEC M1735A Patient cable 8 pin 5 wire IEC M1736A Trunk cable 12 pin 3 wire AHA M1500A Lead set 3 wire AHA M1605A Trunk cable 12 pin 3 wire IEC M1510A Lead set 3 wire IEC M1615A Trunk cable 12 pin 5 wire AHA M1520A Lead set 5 wire AHA M1625A Trunk cable 12 pin 5 wire IEC M1530A Lead set 5 wire IEC M1635A Paddles Internal paddle adapter White M1740A Interna
193. ssories Documentation Options 0B3 Service Manual English only OBP In Service Training Video VHS NTSC OBQ In Service Training Video VHS PAL OBR Service Training Video VHS NTSC OBS Service Training Video VHS PAL Standard Accessories Supplied o CodeMaster XL Users Guide M1722A B and M1723A B O CodeMaster XL Series Quick Reference Card M1722A B and M1723A B ECG Patient Cable language country specific M1733A M1735A H Disposable Electrodes HP 14445C o 1 roll Thermal Paper HP 40457C Cart MTRO 00336L Add Cart Warranty W07 5 years warranty on site Introduction Options and Accessories NOTE Setup and Configuration Introduction This chapter covers setting up and configuring the CodeMaster XL Defibrillator Monitor If you are a Hewlett Packard service representative this information provides a factory recommended process to use when assisting customers The configuration information guides you through the setup menus and describes configuration choices Setup The defibrillator is ready for operation when the following tasks have been properly performed H Install battery O Charge battery for 24 hours o Install paper H Make sure that the paddle set connector is seated and locked O Select configuration settings set date and time Line Voltage Settings The defibrillator automatically adjusts to the line voltage that is supplied from 100 230 VAC 15 at 50 60
194. sts described in Chapter 3 Performance Verification and Maintenance to verify operation of the defibrillator to specifications In addition perform the defibrillator calibration and the defibrillator test in the built in menu tests see Chapter 2 Setup and Configuration for test descriptions WARNING Troubleshooting Introduction Test Equipment The following test equipment is required to troubleshoot the defibrillator as described in this chapter This equipment is all commercially available A digital voltmeter such as the HP E2373A handheld multimeter 12 lead ECG simulator Pacer tester Energy meter Paddles ECG simulator built into many manufacturers energy meter SpO2 Safety Considerations Toremove power from the instrument you must turn the Energy Select control to Off Standby unplug the instrument from AC power and remove the battery Disconnecting the unit from AC power will not remove power because the battery powers the instrument while AC power is unavailable To disarm a charged instrument there are three methods Turn the Energy Select control to the Off Standby position Place the paddles in their holders on the defibrillator and depress both shock buttons on the paddles In manual mode After 60 seconds the unit automatically disarms In shock advisory mode after 60 seconds the unit automatically disarms Before removing or inserting any board or connector disconnect the instru
195. surement matrix attached to each algorithm decision After the unit is powered off and then on the next ECG event ECG alarm or Mark key pressed will erase the Event Summary All previous information will be lost 2 25 Setup and Configuration Configuration 2 26 Performance Verification and Maintenance Introduction This chapter describes the tests and inspections required to verify performance of and maintenance procedures for the CodeMaster XL and XL Defibrillator Monitor The information is presented in the following sequence Test Results Matrix Lists an overview of performance safety tests and provides expected CodeMaster XL XL results Setup Diagnostic Menu Tests Explains how to use the defibrillator s built in Setup Diagnostic Menu Tests to calibrate the defibrillator and do quick operational checks Performance Verification Explains how to verify the defibrillator s performance Preventive Maintenance Explains preventive maintenance procedures including how to check battery capacity and do basic care and cleaning Equipment List Lists specifications that must be met by the equipment used to verify the defibrillator s performance Performance Verification Provides a performance verification checklist Checklist For simple checking without using external equipment you can use the menu driven tests built into the defibrillator However these tests are not as thorough as the tests listed for
196. ta neously while displaying this screen Only clear the shock counter after replacing a patient circuit component such as the high voltage HV capacitor HV inductor patient relay or HV charger board Record the value of the shock counter prior to clearing it 3 Turn the Energy Select control to the energy level for the power configuration you selected 4 Press Charge The value for AVAILABLE ENERGY increments 5 Check that it reaches the energy level you selected when the Charge Done LED is lit on the front panel or the apex paddle 6 Check that the entry for MSEC TO CHARGE is within the limits listed in Table 3 3 for the power configuration you selected Avoid touching any metal surfaces on the defibrillator and do not touch equipment connected to the defibrillator during shock Dangerous high voltages exist on the paddles when the defibrillator is discharged Contact with this high voltage could cause death or serious injury 7 Discharge the defibrillator by pressing the two shock buttons 8 Check that the values for DELIVERED ENERGY IMPEDANCE and PEAK CURRENT are within the limits listed in Table 3 3 If the displayed Impedance is outside these limits see Adjusting the Internal Delivered Energy Calibration on page 5 30 To test the automatic disarm function 9 Press again 10 Wait until an alternating tone sounds and then the AVAILABLE E rements
197. ted flat tip screw driver 10 To adjust the vertical size or gain of the display adjust the second potentiometer in line on the top of the CRT deflection board Set the vertical size to the dimensions shown in Figure 5 16 Use an insulated flat tip screwdriver Figure 5 16 104 mm 5 HEWLETT PACKARD z M1722 11 CRT Test Pattern 11 To adjust the display focus adjust the third potentiometer in line on the top of the CRT deflection board Use an insulated flat tip screwdriver 12 To adjust the display intensity adjust the last potentiometer in line on the top of the CRT deflection board Use an insulated flat tip screwdriver 13 Turn the Energy Select switch to Off Standby 14 Remove the battery from the bottom of the defibrillator 5 29 WARNING Removal and Replacement Adjusting the Internal Delivered Energy Calibration 15 Reconnect the pacer cable assembly if present at the right most connector on the con trol board 16 Close the defibrillator chassis and install the six screws This completes the CRT Adjustments procedure Adjusting the Internal Delivered Energy Calibration On revision B and later control boards you can calibrate the Peak Current measurement circuitry in the M1722 M1723 family of defibrillator monitors Perform this calibration only when replacing a control board or Patient I
198. th fHVDISCHG closes the patient relay Once the patient relay is closed only fPRDRV true is required to keep it closed The safety relay is also closed f OPNSFRLY is de asserted when the fPRDRV line is asserted When the shock reset time is over approximately 80 msec from shock initiation the system gate array releases all processors from reset All processors then perform post shock initialization and resynchronize communication paths At 300 msec from shock initiation the defibrillator processor opens the patient relay thus terminating the shock sequence System Monitoring The Defibrillator processor monitors a variety of system functions Some of these are read directly by the processor at its analog inputs while others are first preselected using an analog multiplexer The direct measurements are Capacitor volt A sample of the voltage across the High voltage capacitor age VCAP Used to determine the energy stored in the capacitor One volt at the A D equals 1144 volts at the H V capacitor QRS volume Reads the value of fORSCNTL to set the volume level of the control QRS tone f ORSCNTL varies between 0 and approximately 3 V depending on the setting of the QRS volume control Printhead tem Reads the value of f TSENSE an analog signal generated by a perature temperature sensor on the recorder Used to vary the duty cycle for printhead write in response to changes in printhead temperature Head resistance recorde
199. th the same number on the power supply board J2B Signal Definition HCRET Dedicated return lines for HCVDC PRN12V Recorder 12 volt supply Powers the stepper motor PSSYNCLK Power supply synchronizing clock 96 kHz ACON Indicates that the supply is plugged into AC power nPSON Active low Enables the DC DC converter 5 and 12V VDC2 A more filtered version of VDC for use in powering up start up logic and static RAM ORed with VBATT to form VBACKUP SWADRIVE Controls Switch A when asserted high switch A is closed HCVDC High current VDC supply for recorder and pacer HCRET High current return lines for HCVDC Appendix A Connector Pin Assignments Control Board Connectors A 13 Table H 10 NOTE Appendix A Connector Pin Assignments Control Board Connectors Control Board J9 to High Voltage Board J2 Pin Signal Pin Signal 1 HVDISCH 8 QUALACON 2 DEFBSTAT 9 VCAP 3 SSRY 10 AGROUND 4 nCHGEN T VBATT 5 AGROUND 12 PRDRV 6 AGROUND 13 nBATPRES 7 OPNSFRLY 14 CHRATE Each pin on the control board J9 connects to a pin with the same number on the high voltage board J2 Signal Definition HVDISCH High Voltage Discharge Logical NOR of nDICCH and nDISCHS DEFBSTAT SSRY nCHGEN OPNSFRLY QUALACON VCAP VBATT PRDRV nBATPRES CHRATE Defibrillator Status A signal generated by the high voltage board to provide patient relay status Reserved Charge Enable A signal
200. the areas of the test pattern Inspect the recorder strip for Consistent print quality for all pattern areas Constant width for all pattern areas Straight diagonal lines Visible separation between the close parallel lines Clean black bars with no dropout in black areas Accurate rendition of all characters A distance of 25 mm 2 mm between the longest tick marks 5 mm between the interme diate tick marks Figure 3 6 Performance Verification and Maintenance Performance Verification 4 2 2 2 Yj f 2 2 1999999999994 M1722 12 Recorder Test Test Pattern A Test pattern for checking print speed B Major tick marks C Test pattern printout of all characters and symbols Auxiliary Function Tests Controls Test This test checks the operation of the panel keys Figure 3 7 Performance Verification and Maintenance Performance Verification To test the panel key operation follow these steps 1 Select TEST CONTROLS in the setup diagnostic menu The information shown in Figure 3 7 is displayed CONTROLS TEST Ss Paddles Pads or Internal Paddles PADDLE TYPE Gl ENERGY SELECT MONITOR PRESSED KEYS ARE HIGHLIGHTED PAD CHARGE CHARGE RECORD LEAD SEL
201. the beeper Power Up Down Processes The following is a description of how the control board performs the powering up and powering down processes It is assumed that the instrument is either plugged in to the AC mains or that a charged battery is installed In either case VBACKUP is about 12 V and DIGBACKUP is at 4 3 V Theory of Operation Control Board OFF State When the energy select switch is in the off position the fnON signal line is pulled high This tells the power supply to not generate any of its regulated voltages Consequently 5 V is near ground and the power fail detector holds the power fail signal nPF low and generates nNRAWRST nRAWRST is the reset signal that generates most of the other reset signals Power Up When the energy select switch is moved from its off position fnON is shorted to ground This tells the power supply to start generating its regulated voltages When the 5V supply reaches 4 72V nPF goes high About 450 ms later nRAWRST also goes high nRAWRST going high tells the gate arrays to begin generating clocks and to start their exit from reset processes When all the resets are released the Monitor processor performs its boot up and tries to establish communications with the Defibrillator processor via the System gate array The Monitor processor does a self check when it comes out of reset When first released from reset the Monitor processor drives the nFAILURE line low It then performs a
202. the defibrillator charges it uses a measured value for the capacitance of the charge capacitor to determine the energy required to reach the selected charge level The CALIBRATE DEFIB choice on the menu guides the user through a routine that measures the capacitance of the HV capacitor and adjusts the capacitance value based on the routine s results The capacitance value is stored in battery maintained memory and 3 9 WARNING Figure 3 2 Performance Verification and Maintenance Performance Verification used each time the defibrillator is charged On TEST DEFIB screen the stored capacitance value is displayed after CAPACITANCE Avoid touching any metal surfaces on the defibrillator and do not touch equipment connected to the defibrillator during shock Dangerous high voltage exists on the paddles when the defibrillator is discharged Contact with this high voltage could cause death or serious injury Test Prerequisites Connect the external paddles and place them firmly in their holders in the defibrillator Calibrating the Defibrillator To start the defibrillator calibration routine select CALIBRATE DEFIB onthe setup diagnostic menu the screen displays the information shown in Figure 3 2 a DEFIB CALIBRATION UN 1 PUT PADDLES IN POCKETS 2 TURN ENERGY SELECT TO 300 3 PRESS CHARGE 4 WAIT FOR CALIBRATION TO FINISH MEASURED CAPACITANCE ie TU
203. tor PCI Add 7 5 cm Internal Paddles switched Add 6 0 cm Internal Paddles switched Add 4 5 cm Internal Paddles switched Add 2 8 cm Internal Paddles switched Introduction Options and Accessories Introduction Options and Accessories ECG Cable Connector Options C30 Substitute 6 pin AAMI ECG connector includes 6 pin 3 wire AHA cable C31 Substitute 6 pin AAMI ECG connector includes 6 pin 5 wire AHA cable Option A01 only C32 Substitute 12 pin HP CMS ECG connector includes 12 pin 3 wire AHA cable C33 Substitute 12 pin HP CMS ECG connector includes 12 pin 5 wire AHA cable Option A01 only C34 Substitute 12 pin HP CMS ECG connector includes 12 pin 3 wire IEC cable C35 Substitute 12 pin HP CMS ECG connector includes 12 pin 5 wire IEC cable Option A01 only C36 Substitute 8 pin 5 wire AHA ECG cable Option A01 only C37 Substitute 8 pin 5 wire IEC ECG cable Option A01 only Defibrillator Case Color 048 Parchment White 049 High Visibility Yellow Hardware Options C50 Add Swivel Wall Mount Hardware C51 Add Carrying Case C52 Add Accessory Pouch Shock Advisory Option C80 Add Shock Advisory Multifunction Electrodes C81 Multifunction Pediatric Defibrillator Electrode C82 Multifunction Adult Defibrillator Electrode Upgrade Program 085 Defibrillator Upgrade Program Sync Cable Options 101 Add 8 pin Sync Cable 102 Add 6 pin AAMI Sync Cable J03 Add 12 pin HP CMS Sync Cable Introduction Options and Acce
204. tors Corroded or damaged electrodes Foreign material on the thermal printhead or paper sensor Connect the defibrillator to AC power observe that the AC POWER and CHRG indicators come on Turn the Energy Select control to Monitor On and observe that the 4 Charge and Sync indicators light momentarily and that the monitor screen displays a trace and other information Also the indicator should light momentarily if pacer is installed Replace any damaged or missing items and clean the printhead paper sensor and patient electrodes as necessary Leaning instructions are listed under Preventive Maintenance on page 3 28 Defibrillator Calibration The defibrillator should be recalibrated after any of the following events The user suspects that the defibrillator is delivering an energy level lower than the level selected via the Energy Select control The CALIBRATE DEFIB date on the main setup diagnostic menu is no longer dis played See Table 2 3 Displaying Printing a Configuration Setting on page 19 for information about the menu Note that the defibrillator is shipped with no date dis played The SETUP LOST message is displayed on the screen See Configuration on page 2 16 for information about the message After servicing which requires replacement of the HV capacitor the Control board or each time the unit is opened After each scheduled preventive maintenance When
205. trol that board data is available to be read At this time the switch buffer U7 is read to check for any key presses and SpO data 5 PR error conditions are read from the dual port RAM Power Supply The power supply is designed to provide isolated power to the floating circuitry The circuit is a fly back topology with feedback though an opto isolator U54 to control the pulse with modulator The transformer includes taps to generate 12V and 6V In addition linear regulators exist on the floating side to generate 5V and 5 2V Patient Isolation To ensure the safety of the patient the applied part is isolated from ground by optocouplers and a transformer In addition a mylar shield is used to isolate the floating circuitry from the CRT frame 7 28 Theory of Operation Recorder Interface Board Recorder Interface Board The Recorder Interface board provides power and control signals from the CRT Recorder gate array to the printhead and motor The printhead control signals pass through the board to the printhead These signals provide the data clock 4 MHz latch and strobe for the printhead Other signals provide status of the printhead to the gate array such as printhead temperature and resistance which are required for print quality An optical sensor in the recorder provides the status of the recorder door and recorder paper if the door is open or the paper is out the CHI R ECORD
206. ts list 6 1 6 30 CRT assembly 6 19 battery door assembly 6 14 external paddles connector assembly 6 28 high voltage assembly 6 18 keypanel assembly 6 15 list of assemblies 6 1 main assembly 6 4 6 10 paddle assembly 6 26 recorder assembly 6 21 supplies 6 29 parts ordering information 6 2 patient cable connecting 2 14 2 15 keyed plug 2 15 patient circuit 7 15 patient connections 7 30 external paddles 7 30 patient contact indicator 7 19 patient impedance 7 19 patient inductor 7 15 removing 5 23 patient isolation pacer 7 24 patient load 7 15 patient relay 7 5 7 14 7 15 removing 5 19 peak discharge current 7 6 measurement 7 9 pediatric paddle set standard external 2 7 pediatric paddles exposing 2 7 performance test intervals 3 9 performance tests equipment list 3 32 performance verification 3 8 3 27 ECG simulation 3 26 SpO test 3 25 checklist 3 8 3 33 delivered energy level test 3 14 pacer test 3 25 setup diagnostic menu tests 3 6 sync cardioversion 3 26 visual inspection 3 8 power failure detector 7 8 power supply 7 11 7 12 AC DC converter 7 11 DC DC converter 7 12 battery charger control 7 12 replacing fuses 5 35 tests 4 21 power supply assembly removing 5 10 power supply interface 7 8 LED drivers 7 9 digital backup supply 7 8 power failure detector 7 8 switch A control 7 8 power up power down process 7 9 preventive maintenance 3 28 cleaning 3 3
207. ttery compartment as shown in Figure 2 2 Be sure to match the keying 4 Push the plug into the connector until the plug is locked 5 Gently lower the battery into the battery compartment until completely seated NOTE CAUTION Setup and Configuration Setup 6 Route the battery cable between the battery and the compartment wall so the cable will not be caught between the compartment door and the case 7 Replace the battery door and secure it by turning the two retaining screws 1 turn clockwise 8 Turn the instrument right side up 9 Connect the power cord to the defibrillator then plug the cord into an AC outlet The green C AC POWER D and d BATT CHRG indicators on the front panel should light up The AC POWER indicator lights when the instrument is plugged into AC power the indicator is on when the battery is installed and the instrument is plugged into AC power To ensure full battery capacity charge the battery for 24 hours following its installation in the defibrillator If the defibrillator will be stored for longer than one month without AC power remove the battery from the unit Note on the instrument that the battery has been removed After an extended storage period the battery should be tested using the battery capacity check See Chapter 3 Performance Verification and Maintenance Setup and Configuration Setup Loading the Recorder Paper The defibrillator recorder uses
208. ttery operation Less than 5 seconds to 360 joules Armed indicators Charge done tone charge done lamp on apex paddle and available energy indicated on display Paddle contact indicator PCI Option 01 3 color LED bar graph array on STERNUM paddle indicates quality of defibrillator paddle contact before discharge Paddles Standard paddles are anterior anterior adult and pediatric Adult electrodes 83 cm sq slide off to expose pediatric electrodes 21 cm sq Paddle cord is 10 ft 3m Full range of internal paddles are available Synchronizer SYNC message appears on monitor and is annotated periodically on recorder while in synchro nous mode An audible beep sounds with each detected R wave while a marker on the monitor and sync designator on the recorder strip indicate the discharge point Monitor Inputs ECG may be viewed through paddles or patient cable Lead Il III or PADDLES selectable Addi tional leads avR avF AvL V Leads and PADS are available Option A01 Monitor and recorder indicate selected ECG source Lead fault LEADS OFF message and dashed baseline appear on monitor if a lead becomes discon nected 1 4 Introduction Specification Data Table 1 3 Electrical Specifications Continued Parameter Common mode rejection Specification Leads 2100 dB and Paddles 290 dB measured as per AAMI standards for cardiac monitors EC13 Pace pulse rejection The pace pulse rejectio
209. ttery voltage Table H 32 Table H 33 Appendix A Connector Pin Assignments Patient Inductor Patient Inductor These tables list the pin assignments for the connectors on the patient inductor The connections are listed in Table H 32 Patient Inductor Patient Inductor Connects To IPEAK 5V Control board J10 1 IPEAK5V IPEAK Control board J10 2 IPEAK INDUCTOR IN RED High voltage board J3 2 HV INDUCTOR IN INDUCTOR OUT RED Patient relay HV CAP 0 1 RED Signal Definition IPEAK 5 Supply for Ipeak transformer measurement IPEAK Ipeak transformer output used by Ipeak measurement circuitry INDUCTOR IN Input side H V capacitor of waveshaping inductor INDUCTOR Output side patient of waveshaping inductor OUT CRT Deflection Board On the CRT deflection board J1 connects to J11 on the control board The pin assignments are the same on both connectors See Table H 12 for pin assignments CRT Deflection Board Connections CRT Deflection Connects To Reference Board Connector J1 Control board J11 Table H 12 J2 CRT Deflection yoke Table H 34 Table H 33 NOTE Table H 34 NOTE Appendix A Connector Pin Assignments CRT Deflection Board CRT Deflection Board Connections CRT Deflection Connects To Reference Board Connector J3 CRT Socket board Table H 35 J4 CRT Socket board Table H 36 The CRT socket board J5 connects to J5 on the CRT tube socket
210. uc eire oie EI EE EIER D eiie Dobis pite idee pi beet eius 2 1 Installing and Charging the Battery sese nennen nennen treten treten nee nnnenne es 2 1 Loading the Recorder Paper o uio eee dee ette EUR D 2 5 Connecting Paddles Patient Cables and SpO sensors ssssssssssseeeeeee eene 2 7 Defibrillator Connector erii ee ehe cire e aite ie dece E eoe Ee e ER ER edes 2 7 ECG Input Connector eet in eee deti ae He e n Oe ed ye des 2 13 SpOs Connector x5 eene enndem Sa ee e edes 2 15 Configuration pes gne a E 2 16 Displaying the Setup Diagnostic Menu 2 17 Displaying Printing Configuration Settings sees enne 2 19 Changing Configuration Settings sissies esseer iei nd PRESE erbe ree ier SE ER ee oso dp es a 2 22 Disabling the Internal Pace Pulse Detection Marker sess 2 24 Shock Advisory Algorithm Measurement Matrix Print optional eee 2 25 vil Contents Performance Verification and Maintenance lian E S kes 3 1 Test Results Matrix iis n tare PO D etre tb De o RUD re RES 3 2 Setup Diagnostic Menu Tests etr necis iie da casein orco te De Pete scusceudecs cos de bie eub de Ds 3 6 Performance Verification s eoe nete ac rd tense A e e e getreten ebd e
211. uctor disconnect and label the red wire that runs to the patient relay and the red wire that runs to the high voltage charger board 4 Using a flat tip screwdriver remove the plastic retaining clip that secures the inductor to the chassis Remove the inductor To install the patient inductor perform the following steps 1 Insert the patient inductor so that the wires face toward the center of the chassis Install the plastic retaining clip to secure the inductor 2 Connect the shortest red wire from the inductor to the shortest red wire on the patient relay Connect the longer red wire from the inductor to the HV RED jack on the high voltage charger board 3 Perform the procedure Removing the Patient Inductor steps 3 through 1 in reverse order Refer to Figure 5 13 and Figure 5 14 for wire connections Calibrate the peak current circuitry using the procedure Adjusting the Internal Delivered Energy Calibra tion described later in this chapter 5 24 Removal and Replacement Removing the Patient Inductor Figure 5 13 High Voltage Connection Diagram front view 5 25 Removal and Replacement Removing the Patient Inductor Figure 5 14 TO HIGH VOLTAGE BOARD J5 WHITE RED ao Q FRONT END 1 BOARD To IN RELAY LOAD RESISTOR Ms mi a EXER WHITE WHITE BLACK RED Q d TO CONTROL HIGH VOLTAGE E BOARD J10 BO
212. uitry The battery charger is a three state charger and is temperature compensated The following list details the three states 1 Current limit charges the battery at 1 60 A rate until charge voltage reaches the over charge voltage 2 Over charge charges at a voltage greater than Vfloat nominal charge voltage V overcharge 14 5 V 25 C 3 Float voltage charges the battery at Vfloat 13 6 V 25 C when charging current is less than 120 mA DC DC Converter When the instrument is turned on the DC DC converter provides 12 and 5 output voltages from an input voltage range of 9 0 Volts lowest battery voltage under Defibrillator charge to 16 0 volts highest VDC using a flyback converter The DC DC converter is powered by the AC DC Converter at all times unless operating on battery only Efficiency of the DC DC converter is specified at 80 and is optimized for greatest efficiency at nominal load Figure 7 3 Theory of Operation High Voltage Board High Voltage Board The following circuits make up the high voltage board Battery connector Safety relay drive Patient relay drive High voltage charger These circuits are shown in Figure 7 3 Control Board Interface Power Supply Interface High Patient 5 nBATPRES Voltage Relay attery i Charger Drive J4 Interface 9 Board AGROUND M17
213. up and Configuration Setup Table 2 2 lists available patient cables and lead sets and their part numbers Patient Cables and Lead Sets Patient Cables Leads Lead Sets Part Number 6 Pin Patient Cables AHA only 3 wire M1731A 5 wire M1732A 8 Pin Patient Cables AHA 3 wire M1733A AHA 5 wire M1734A IEC 3 wire M1735A IEC 5 wire M1736A 12 Pin Patient Cables a trunk cable and a matching lead set Trunk Cable Lead Set Part Number AHA 3 wire M1500A M1605A AHA 5 wire M1520A M1625A IEC 3 wire M1510A M1615A IEC 5 wire M1530A M1635A 3 wire RA LA LL 5 wire RA RL LA LL V C Connecting a Patient Cable The 3 wire or 5 wire patient cable connects to the ECG Input connector located on the front of the defibrillator behind the carrying handle The patient cable plug has 6 8 or 12 pins Before connecting the patient cable make sure that the pin count of the patient cable plug matches the pin count of the ECG Input connector To connect the patient cable 1 Align the keyed cable plug with the slot in the ECG Input connector See Figure 2 10 2 Push the cable plug firmly into the ECG Input connector When a lead is selected for monitoring the message LEADS OFF appears on the display if the patient cable falls off or is incorrectly connected Also a dashed line appears on the display in place of an ECG trace Setup and Configuration Setup Figure 2 10 M1722 10 Connecting
214. ve Replace keypanel board or assembly control board defective Replace control board 4 18 Table 4 13 Troubleshooting Troubleshooting Tables Defibrillator Problems Symptom No response to key Cause Paddles cable not installed Corrective Action Install cable Lockout Error DEF TB FAIL URE For error code perform PRINT LOG in Diagnostic screen Replace control board high voltage board or high voltage components as recom mended in Table 4 1 key not recognized Run Controls Test to check for recog nition of key Replace paddles front panel control board as needed Delivered Energy out of specifi cation Improper defibrillator calibration Perform diagnostic test CALIBRATE DEFIB Defective High Voltage Board Replace high voltage board Defective control board Replace control board Defective HV capacitor Replace HV capacitor Test Discharge indicates a fail ure external defibrillator test passes Internal delivered energy out of cali bration Calibrate the Peak Current Measure ment circuitry as described in Adjusting the Internal Delivered Energy Calibration on page 5 30 Defective Control Board Replace Control Board DEFIB FAILURE At power up or after a dis charge Patient relay or drive circuit failure Error 40 or 440 See warning below Unexpected voltage on HV capacit
215. w 7 21 Theory of Operation CRT Deflection Board Vertical Deflection Vertical deflection is accomplished by running a linear current ramp through the vertical coil on the CRT yoke The Vertical Sync VS signal from the CRT controller generates the vertical deflection for the CRT Horizontal Deflection The Horizontal Sync HS and CRT bias voltages are generated when HS drives the flyback transformer which provides supply voltages and horizontal deflection Horizontal centering must be accomplished using the external magnets on the CRT yoke assembly Horizontal width is adjusted with a series inductor also built into the yoke assembly The following supply voltages are created for use in biasing the CRT 28 V Video amplifier and Vertical retrace 39 V Intensity adjustable 300 V Grid 2 bias 300 V Focus adjustable 7 5 kV Anode Voltage Video Two levels of video are presented to the CRT full bright and half bright Half bright video is used for text while full bright video is used for ECG data The beam is at full brightness when the video output to the CRT is 0 V at half brightness when the video output is 4 3 V and off when the video output is 28 V 7 22 Figure 7 8 Theory of Operation Pacer Board Pacer Board The pacer consists of the circuits shown in Figure 7 8 The pacer board generates pacer output to these specifications Current Pulse 20 ms 0 25 Amplitude 10 mA to 200 mA 10 mA to
216. with Sp0 English M1723A B M1723 84420 M1723 84920 Keylabel with Sp0 French M1723A B M1723 84421 M1723 84921 Keylahel with Sp0 German M1723A B M1723 84422 M1723 84922 Keylabel with Sp0 Dutch M1723A B M1723 84423 M1723 84923 Keylabel with Sp0 Spanish M1723A B M1723 84424 M1723 84924 Keylabel with Sp0 Italian M1723A B M1723 84425 M1723 84925 Keylabel with Sp0 Swedish M1723A B M1723 84426 M1723 84926 Keylabel with Sp0 Japanese M1723A B M1723 84427 M1723 84927 Keylabel with Sp0 Norwegian M1723A B M1723 84428 M1723 84928 Keylabel with Sp0 Finnish M1723A B M1723 84429 M1723 84929 Keylabel with Sp0 Danish M1723A B M1723 84430 M1723 84930 2 Bezel Energy select switch with without Sp0 M1722A B M1723AJB M1722 67225 3 Lens CRT M1722 47501 4 Screw M3 x 10 qty 2 0515 0374 5 Keypad English M1722A B M1723A B M1722 84450 Keypad French M1722A B M1723AJB M1722 84451 Keypad M1722A B M1723AJB M1722 84452 Keypad Dutch M1722A B M1723A B M1722 84453 Keypad M1722A B M1723AJB M1722 84454 Keypad Italian M1722A B M1723A B M1722 84455 Keypad Swedish M1722A B M1723AJB M1722 84456 Keypad Japanese M1722A B M1723A B M1722 84457 Keypad Norwegian M1722A B M1723AIB M1722 84458 Keypad M1722A B M1723A B M1722 84459 Keypad Danish M1722A B M1723AJB M1722 84460 6 Keypanel comes with cable M1
217. x A Connector Pin Assignments Control Board Connectors Control Board J2 to Front End Board J2 Pin Signal 8 FESCLKI 9 GND 10 FECHPCLK n FEBV 12 FEPWRCLK Each pin on the control board J2 connects to a pin with the same number on the front end board J2 Signal Definition nFESENP ECG Front End Serial Enable Paddles nFESENL ECG Front End Serial Enable Leads FESI Front End Serial Data Input FESO Front End Serial Data Output FEPEN Front End Paddles Enable FELEN Front End Leads Enable FESCLKI Front End Serial Clock Input FECHPCLK Front End Chip Clock Clock supplied to the ECG ASIC 2 048 MHz FESV 5V to front end board FEPWRCLK Front End Power Clock The switching frequency of the front end power supplies 32 kHz Control Board J3 to ECG Out Connector Pin Signal 1 ECGSHIELD connects to sleeve 2 ECGOUT connects to tip 3 INSTATE connects to ring Table H 5 Table H 6 NOTE Appendix A Connector Pin Assignments Control Board Connectors Signal Definition ECGSHIELD Connects to the shield of the ECG Out cable ECGOUT INSTATE ECG Out signal 1V 1mV of the monitored source Instrument State Indicates leads status OV Off 1 5V On and Leads Off 5V On and Leads On Control Board J4 to ORS Volume Control Pin Signal 1 GROUND connects to ground 2 QRSCNTL connects to wiper Signal Definition QRSCNTL Used to set the volume level of
218. y Sternum Paddle Patient Inductor Patient Capacitor Apex Paddle M1722 41 Patient Circuit Block Diagram The High voltage capacitor Patient inductor and patient load form a series resonant LC circuit with a critical damping load resistance of 63 For a nominal patient load of 50 the discharge waveform is a slightly underdamped sinusoidal waveform The High voltage capacitor is charged up by the High Voltage Charger to the voltage required for any of the various energy settings which range from 2 to 360 Joules actual voltage on the High voltage capacitor ranges from 325 V and 5300 V This capacitor is then discharged through the Patient inductor and the patient relay into the patient load Figure 7 5 Theory of Operation Patient Circuit During a shock the patient relay isolates the patient circuit and capacitor from one side of the pacer circuit to prevent the pacer from absorbing energy from the delivered pulse and isolates the high voltage charger from the capacitor to protect the charger from reverse polarity during waveform undershoot The waveform characteristics of the pulse delivered through resistive loads of 25 50 and 100 ohms is shown in Figure 7 5 and Table 7 2 The Patient inductor has a secondary winding that develops a voltage during discharge This voltage is integrated and peak detected on the high voltage board to determine the peak discharge current Ipeak The coil cords carry the discharge current t
219. zards only in accordance with UL 2601 1 CAUTION The manufacturer importer and seller are responsible for the effects on safety reliability and performance only if assembly operations extensions re adjustments modifications or repair are carried out by persons authorized by them and the electrical installation of the relevant room complies with all local regulations and the equipment is used in accordance with the instructions for use Use of accessories other than those recommended by Hewlett Packard may compromise product performance THIS PRODUCT IS NOT INTENDED FOR HOME USE Responsibility of Manufacturer Hewlett Packard only considers itself responsible for any effects on safety reliability and performance of the CodeMaster XL defibrillator monitor and the battery support system if assembly operations extensions re adjustments modifications or repairs are done by persons authorized by Hewlett Packard and the electrical installation of the relevant room or vehicle complies with the IEC or national requirements and the instrument is used according to the instructions for use presented in this manual ii iii Safety Summary Safety Symbols Marked on the Defibrillator The following symbols are used on the defibrillator On Do not confuse with 1 Joule Off Standby On Off Ground Shock hazard Caution See operating instructions gt IFoo Meets IEC type BF l

Service Manual - Frank`s Hospital Workshop

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