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2. 0 OL ANOYOL SH3N3lSsvd 3J3JOGNV1S LYOd Tvl33S N q sql u S UN 9 0 0 OL ANOYOL SH3N3alsvd JJOQGNVLS LYOd 1311VMVvd LINAWLYVdNOO AYALLVE dO TIYM 3GISNI NO QVd AY SLLVa 31VOO 1l ATIVS LN3O lt LNAWLYVdWOS AN3 LLVS dO STIVM Q3dVvHS AV 10SNVIl31 NO SdVd Z LHONY 9 14357 31VOO1 p L33HS 339 A 18IW3SSV HOLO3NNOO HV38S ANY 390V383 LNI sql Ul WN 0 INOYOL XVNW iq O33 Z ONILNOY 318VO9 d3 Vv3dS ANY AS3ILLVS HOd V Tllv L3d 33S NAAOHS SV 3S VO HV3H dO dAOOHO JHL OLNI SS3d 73 ng Sheet 3 Rear Case Assembly Assembly Drawi Figure 9 Chapter 7 Spare Parts Assembly Drawings 2 REQ D TORQUE TO 0 7 0 9 Nm 6 8 in lbs J1 amp J4 CONNECTS TO J2 amp J1 OF REAR CONNECTOR PCB a Z 2 amp s SHORT LEG LONG LEG LONG 247 Pas LEG ARS SHORT es LEG 2 REQ D NOTE ORIENTATIONS 2 REQ D TORQUE TO 0 7 0 9 Nm 6 8 in lbs Figure 10 Assembly Drawing Sheet 4 Interface PC B Rear Connector PCB 74 Chapter 7 Spare Parts Assembly Drawings MAX TORQUE 0 3 Nm 6 REQ D 3 in Ibs Figure11 Assembly Drawing Sheet 5 Side Connector PC B Chapter 7 Spare Parts Panel Label 75 Assembly Drawings 76 Chapter 7 Spare Parts 8 Test and Inspection Matrix Warnings Warning EXPLOSION HAZARD Do no
3. Diagnostic Repair Actions Describe X Examinethe display after an apparently successful power up sequence and self Degraded test seo n Consider first the appearance of artifacts gaps or general quality of the display N ote the values being reported in the numerical frames FH R s and TOCO Are they clearly unreasonable Swap Usea spare transducer that is free of defects and meets factory specifications At Transducers facilities where more than one monitor is installed it may be convenient to Exchange the Monitor 36 borrow a transducer that is working satisfactorily with another monitor If the monitoring problems persist or there is total failure exchange the monitor Chapter 5 Troubleshooting 6 Disassembly Reassembly Guide Warning Performance verification do not place the monitor into operation after repair or maintenance has been performed until all performance tests and safety tests listed in Chapter 8 of this service manual have been performed Failure to perform all tests could result in erroneous monitor readings or patient operator injury Warning Energized circuits are accessible with the covers open Do not work on the monitor with the covers open Only qualified service personnel should open or disassemble the monitor Introduction Warning Before attempting to open or disassemble the monitor disconnect the power supply from the monitor Warning High voltage is generated by
4. 22 FrioOrilsn i ices um EECREEEEECECEEE ee hee ER EAS 4 S tots 22 EITO OG 0 Ss 55 53 05 55 asss S sa squa a dh b Gh Gah ah Q Q Q Q Q a Q Q Q a h Saa 29 TOUCFOCGUGCLCIOI duas CREDE dupEMDENDREE S RES UEM LIE LE LM LEAGUES SE c 25 Power up Defaults Settings 25 Service Mel 2ic 06s ABO Gee a etoad savin bb bbb Sa eee eS OA RS SSeS SS 26 EVOL 05 2 san eee ea ee data Q yaw ne ee ea E 28 VSEM AD Vali S edid doudou o eee reor ues Sk Rr ie re ee RU dr una 29 5 Troubleshooting n n n n e DL vi uM C ae ae CORUM Oe wd ee EEE KADER EE ORE RS 31 Initial Trouble DiagnosIS 32 Power Problem Diagnosis E ERE HEC EISE IE o EHE EE Od 33 Diasnosuc Plow CN AL tact vue hee ede eed eed ede OON 309 ea ne me ete nee a ae thc 33 Diagnostic Repair ANCUONS s icm uu RUENUESOE SUE RUE Causis Nx OE NE NACE 34 Monitoring Degradation Problems 35 Diagnosvie Pow Dabo erates ee ee E AOSLAE NUES AUS os Rcs 1 NV td 35 Diagnostic Repair Actions 0 0 0 cc aw aa aw aw han 36 Disassembly Reassembly Guide 9T Int EOQUCLEIODL uxuyasi s aulas amal doo pu xus op oe wc ss q s NL 5 2 3 How to Use this Chaple c oaa ere eee qutd ritis demit titius ded 38 Tools q iped ione auo aeta duet rans c eaae ace a ade I usus e tre tci 39 li atti te tent e Aen eae eee habe be Mee Ne hig ete
5. 50 replacing 51 assembly removal 50 backlight 8 display 8 resolution 8 LCD display window removal 51 96 main PCB disassembly procedures 59 removing from front case assembly 49 replacing 52 malfunction categories degraded operation 32 totally inoperative 32 measurement channels 10 Metron contact address 85 safety tester 85 modem default initialization string 15 validated 17 6210GSM 17 MultiTech MT 5600ZDX 15 Nokia 6210GSM 15 modems supported 14 monitor block diagram 7 exchanging 2 general description 6 main assemblies See front and rear case assembly major component parts 38 mechanical description 8 overview of 6 mountings roll stand 10 wall mount 10 MultiTech 15 MultiTech MT 5600ZDX 17 N navigation wheel description 9 removal 47 replacing 48 Nokia 6210GSM 15 17 non medical equipment placement 14 18 notes 3 null modem cable 14 O OB TraceVue and system safety test 89 RS 232 interface 13 overview of monitor 6 P packing and warranty 5 for shipment 5 general instructions 5 repacking in different carton 5 in original carton 5 paper advance icon 4 parallel interface 13 18 PCL level 3 printer 18 parallel port PCL printer 8 patient leakage current 81 88 values 89 PCL Level 3 validated printers 18 performance assurance tests power on self test 19 transducer testing 19 22 visual test 20 pinouts RS 232 interface 14 serial
6. Sheet 5 Side Connector PCB Panel Label 75 Figure 12 Testing a Toco Transducer 91 Figure 13 Testing an Ultrasound Transducer 92 Figure 14 Position Of Crystals in an Ultrasound Transducer 93 Figure 15 Testing the Crystals in an Ultrasound Transducer 93 List of Figures Xi 1 General Information Introduction T his guide tells you how to service and repair the monitor M 2922A It describes the system hardware and software tells you how to diagnose operating and servicing problems and how to test the system Asthis monitor isintended to be installed by the customer refer to the Instructions for U se for details of how to install the monitor TheFM 2 Antepartum Fetal M onitor Service Guide supplements the maintenance and troubleshooting procedures carried out by the operator that are described in the Instructions for U se Refer to the Instructions for U for maintenance and troubleshooting procedures that may be performed during normal operation Any other maintenance and repair procedures beyond the level covered in the Insructionsfor U se are limited to replacement of thebattery three board assemblies inside the case but excluding the main PCB thespeaker components of the LCD display installed in the front case assembly T he features available on the monitor you are servicing depend on which accessories were purchas
7. 66505 side connector PCB kit 70 M2922 66510 interface PCB kit 70 M2922 66511 rear connector PCB kit 70 non exchange assemblies M2922A 65 small parts kit 63 66 supplies and accessories M2922A 66 speaker housing removal 41 replacement 42 support strategy 19 supported modems 14 symbols and definitions 5 system A D values 29 overview 29 98 screen 29 system interfaces 13 18 parallel 18 system safety test 89 T testandinspection matrix 19 77 94 expected results 81 introduction 79 reporting 81 test blocks power on self test 81 safety tests 81 visual test 81 when to perform 80 testing after repair 2 tests and error codes 19 Toco baseline set point power up defaults 25 Toco channel 10 Wheatstone bridge 10 tools 10 mm hex socket for encoder nut 47 for disassembly 39 9 16 inch socket 39 needle nose pliers 39 Phillips head screwdriver 39 torque settings encoder switch nut 48 rear to front case screws 46 speaker housing screws 42 transducer performance test 22 transducer testing 22 toco electrical check 90 visual check 90 ultrasound 92 US crystals 93 troubleshooting 31 36 initial daignosis 32 overview 31 U UL2601 1 85 ultrasound sockets 10 US 1 10 US 2 10 ultrasound channel 10 US trace separation power up defaults 25 V validated modems 15 validated printers 18 visual test 19 81 W wall mount 10 watchdog timer 21 Index
8. FM 2 When to Perform Test Blocks Test Block s Required T he product is customer installed Visual and Power On Refer to the Instructions for U se Preventive maintenance is limited Power On to exchanging the battery Safety Tests Unit Exchange Visual and Power On Unit opened Visual and Power On Front End Connector Board Power On exchanged Performance Tests for Trans ducers Safety Tests Rear Connector Board exchanged Power On Safety Tests Battery exchanged Power On Safety Tests 80 Chapter 8 Test and Inspection Matrix When to Perform Tests Blocks Table 21 Test and Inspection Matrix Test Block W hat to Visual Test Inspect exterior of fetal No Visual Damage V P or V F monitor for damage Power O n Self Power on the monitor Displays N ormal M onitoring PO P or PO F Screen Configuration and emits tones Safety Test 1 Enclosure Leakage All Safety Test results are in S P or S F See 86 Current S F C Open rangeof Table 22 on page 87 Supply e Safety Test 2 Patient Leakage Cur All Safety Test results are in S P or S F See 88 rent S F C Open range of Table 23 on page 89 Supply Key to Table P Pass F Fail Chapter 8 Test and Inspection Matrix 81 Battery Charging and Maintenance Battery Charging and Maintenance Before attempting to perform any tests it is important to verify that the battery is charged and functional Using the Battery You can run the monitor for approxima
9. Kit 68 M3921 60406 Knob Navigation Wheel Kit 69 M2922 44301 Keypad KIU nosse EROS EREQDEdIIRIERHES NDERRERNMP RS 69 M2922 64004 Display Kit 69 M2922 66505 Side Connector PCB Kit TO M2922 66510 Interface PCB Kit TO M2922 66511 Rear Connector PCB Kit TO Assembly Drawings 646 6 056 46 oh ELE Oe a eae dd abe S 1 8 Test and Inspection MatriX dd viii WALIDESaees suse m EN ERE EN aud NN d dd d edu Sl GSS TC CAMIGIONIS tet tect cine eh uaa eb ols eek ty ela eae eee ee ES BS EEE ES Sees 18 INCFOGUCHION 4443 E bee EX A Se SRR EE SESE ER EERE ED AA 19 When to Perform Tests Blocks 80 Battery Charging and Maintenance 82 Usine LNG Balety AEN 82 Low OWE Warn uuu ca Bess are es eae a Sw SS Be 82 Recharging the Battery a a eae aes 83 DUOEITIB wiy ear ue eer ee M eM ME UE IUE tais pour a ded 83 Preventive Maintenance cc cece ec eee hh hh heh 83 Satetv Leste eta tat cuca saa eee eee peu are eee ea dra 84 Safety Test Procedures 85 COU ini il RR ote eet ee ae ee se ee a 86 Electrical Deakd86 35s a T Peek ea eRe Ae de Pasta NX eawes 86 Safety Test 1 En
10. PCB 59 side connector PCB 59 side panel 59 rear case foot cushions 58 handle 58 interface board 55 rear connector PCB 55 tools required 39 display removal 50 replacement 51 window removal 51 E electrical leakage 85 enclosure leakage current 81 87 error codes 23 8 most recent 28 explanation 23 error log 19 27 28 screen 28 errors 19 handling 22 Index not self detected 22 self detected 22 exchange monitor 2 exploded parts diagrams 71 F foot cushions removal 58 front case assembly 38 disassembly See disassembly procedures separation from rear 45 fuses 39 G general information ground integrity 85 H handle removal 58 housing kit 67 icon indoor use only 4 paper advance 4 power supply input power supply input icon 4 power supply output 4 power on indicator 4 printing enable disable 4 IEC601 1 85 IEEE 1284 compliant cable 18 indoor use only icon 4 initialization string 95 attention characters AT 15 default entries 16 amp KO 16 EO 16 XO 16 X4 16 modem default 15 user customizable 15 return characters 15 installation 6 mountings 10 intended readership 2 prerequisites 2 interface parallel 13 serial 13 interface board removal 55 interface PCB removal from rear conn PCB 56 replacing on rear connector PCB 56 K keypad description 9 removal 54 replacement 54 L LCD assembly high voltage precautions
11. backlight driver D o not operate the monitor with the covers open The Display Kit M 2922 64004 comes with a replacement display window which should be replaced when the LCD assembly is replaced Step 1 UseaPhillips head screwdriver to unfasten the four corner screws Main PCB LCD assembly assembly Step 2 RemovetheL CD assembly providing access to the display window 50 Chapter 6 Disassembly Reassembly Guide Front Case Disassembly Reassembly Procedures Step 3 Remove the display window by carefully prying up one corner and then peeling back Front bezel LCD assembly Display window Replacing the LCD Assembly Step 1 Fit the new display window with its gasket to the inside of the front bezel The display window comes with its own double sided adhesive Step 2 Position the LCD assembly so that the holes in each corner align with the four screw mounts on the inside of the front bezel Step 3 U sing a Phillips head screwdriver fasten the LCD assembly with the four fixing screws Chapter 6 Disassembly Reassembly Guide 51 Front Case Disassembly Reassembly Procedures Replacing the Main PC B Assembly 52 Step 1 IftheLCD assembly has been removed first replace it See Replacing theLCD Assembly on page 51 Note There are two notches on the main PCB used for location purposes O ne is at the patient connector panel end and the other is on the opposite end T here are two corres
12. has been disconnected pay very careful attention to the polarity of the cable before reattaching T he red wire connects to the ve terminal the black wire connects to the ve terminal If the battery cable polarity is reversed circuit damage will occur Circuit damage caused by reversed polarity is not covered by the warranty Chapter 6 Disassembly Reassembly Guide Closed Case Disassembly Reassembly Procedures Removing the Speaker Housing Step 1 Placethe monitor on its front panel being careful not to place the unit on any surface that will damage the display Step 2 Using the Phillips head screwdriver unfasten the two screws securing the speaker housing T he speaker housing also acts as the battery cover Step 3 Gently lift the bottom screw end of the speaker cover just enough for the battery pad attached to the inside of the speaker housing to clear the bottom of the rear case At the same time slide the speaker housing towards the bottom of the rear case to free the two lugs holding the top of the speaker housing T he speaker housing is now free of the rear case but with the wires still connected Step 4 Carefully disconnect the speaker wires by sliding the spade connectors off the speaker terminals Step 5 The speaker housing is now completely free of the rear case Chapter 6 Disassembly Reassembly Guide 41 Closed Case Disassembly Reassembly Procedures Replacing the Speaker Housing Step 1 Conn
13. is totally isolated from the interface board through the use of high speed optical isolators and isolated 5 volt power supply See C hapter 2 System Interfaces for serial connections pinouts cables and supported modems Parallel I O Communications Port T he parallel communications port is used to connect the monitor to the Recorder or to a standard PCL Level 3 printer At thetime of printing not all PCL Level 3 printers are supported For printers that have been validated for use 8 Chapter 1 General Information Mechanical Description with the monitor please see Parallel O Communications Interface on page 18 For further details of the pinouts and the cable specifications see Chapter 2 System Interfaces Keypad and Navigation W heel T here are seven front panel switches two LED s and one wheel push button switch All of these buttons go to the main board except for the ON OFF push button which goes directly to the power supply T he software monitors these signals to determine which buttons were pushed T hetwo LED sarelocated on the control panel and inform the user of mains or battery operation T he wheel consists of a mechanical rotary encoder wheel with a momentary push button switch As the knob is rotated quadrature coded outputs are generated T he phase relationship between the two signals in quadrature reflect the clockwise or counter clockwise rotation of the wheel T his relationship is translated
14. min 16 34 12 2 14 2001 Figure3 System A D Values Note The screenshot above shows untypical system A D values that are not representative of normal operation Chapter 4 Power up Default Settings and the Service Menu 29 Service Menu 30 Chapter 4 Power up Default Settings and the Service Menu 5 Troubleshooting General T his section provides a guide for qualified service personnel in locating the possible cause of an apparent malfunction of the monitor or its accessories U se of built in diagnostics flow charts and step by step procedures are provided as aidsin thetroubleshooting process T he chapter leads you to a probable field replaceable assembly or component Items that are serviceable only at the factory are also identified as well as instructions for their return for repair replacement The initial analysis determines whether the apparent malfunction is caused by a reolaceable accessory or by a replaceable assembly within the monitor case Chapter 5 Troubleshooting 31 General Initial Trouble Diagnosis 32 T he first step in diagnosing a possible malfunction isto duplicate if possible the symptoms of the reported malfunction T hereafter it is important to categorize the problem as either one of two types as illustrated in Figure 4 T hey are Totally inoperative condition or Degraded operation T he totally inoperative condition is indicated by the failure of the monitor to resp
15. one type of error code that one error code won t overwrite the other seven error codes N ext to the occurrence field is the time and date of the most recent occurrence of the error code Error codes may not be changed or reset in this screen W hen in the Error Code screen the Return Item Is always highlighted a press of the wheel will return the user to the Service M enu Rotating the wheel whilein the Error Code screen will have no effect C 1 55 2 12 00pm 9 29 200 9999 1 13am 12 25 200 JANE DOE 194848 cm min 16 34 12 2 14 2001 Figure2 Error Log Refer to Error Codes on page 23 for more information on error codes Chapter 4 Power up Default Settings and the Service Menu Service Menu System A D Values For the end user or service personnel the system A D values require no interpretation TheA D screen displays the current value of each analog to digital A D channel in volts TheA D channels read D C voltages for example power supply voltages and battery voltage The A D values displayed are static being acquired when the screen is first displayed N one of the displayed values may be changed or reset in this screen W hen in the A D screen the Return item is always highlighted a press of the wheel will return the user to the Service M enu Rotating the wheel whilein the A D screen will have no effect The A D Values screen appears as follows us A D Values Vref Neg Vref Pos JANE DOE 194848 cm
16. sockets on the side connector PC B fit the holes in the side panel U sing a Phillips head screwdriver fasten the side connector PCB to the side panel using the six screws Align the studs on the bottom of the side panel with the holes on the main PCB Also align the pins at J3 on the main PCB with the corresponding multipin connector on the side connector PCB Push down until the pins at 3 on the main PCB are fully mated with the multipin connector on the side connector assembly T here should be no gap between the bottom of the side connector PCB and the main PCB Ensurethat the side connector PCB is perpendicular to the main PCB From underneath the main PCB fit a new T innerman nut to each of the two side panel studs located in the holes on the main PCB Ensure that the side panel PCB remains perpendicular to the main PCB surface and that the side panel is held firmly by the T innerman nuts Chapter 6 Disassembly Reassembly Guide 61 Main PCB Disassembly Procedures 62 Chapter 6 Disassembly Reassembly Guide 7 Spare Parts Introduction Spare parts along with part numbers are listed in the tables that follow Item N o corresponds to the callout number in Figure 7 through Figure 11 The Page Ref indicates the page number of the relevant disassembly procedures in Chapter 6 Small Parts Kit M ost small parts and hardware screws and so forth can befound in the Small Parts Kit Part Number M 2922 64003
17. the LCD backlight driver D o not operate the monitor with the covers open Chapter 6 Disassembly Reassembly Guide 37 How to Use this Chapter Caution O bserve ESD electrostatic discharge precautions when working within the unit Caution Important for disassembly W hen disassembling the monitor make sure that the battery leads are disconnected O therwise it is likely that circuit damage will occur T he monitor can be disassembled down to all major component parts including PCBs battery cables function buttons chassis enclosures Remember to store all screws nuts washers and other parts in a safe place for later refitting How to Use this Chapter 38 T he step by step procedures that are used to access replaceable parts of the monitor are illustrated in the Disassembly sections which follow T hese describe and photographically illustrate procedures for disassembling the monitor to enable removal and replacement of suspected defective assemblies and components T he monitor consists of two main assemblies Thefront case assembly Therear case assembly The main PCB assembly is separable from the front case assembly Chapter 6 Disassembly Reassembly Guide Tools Required All part numbers and exploded views of some assemblies are found in Chapter 7 Spare Parts Tools Required Caution When reassembling be sure to follow torque limits instructions Excessive torque may dam
18. to a warm humid location Caution Never use sharp or pointed objects to operate the front panel switches Chapter 8 Test and Inspection Matrix Introduction Caution General purpose personal computers and modems are not designed to meet the electrical safety requirements of medical devices T he RS 232 and parallel connectors on the monitor are electrically isolated to permit safe connections to non medical devices which should be connected with a cable of sufficient length to prevent the non medical equipment from contacting the patient If anon medical device is connected to the serial port a recorder or printer connected at the same time to the parallel port should be located outside the patient vicinity as the two interfaces are not isolated against each other e R Introduction T his chapter contains maintenance and safety information for the FM 2 antepartum fetal monitor and its accessories All checks that require the instrument to be opened must be made by qualified service personnel Please contact your local Agilent representative when you wish safety and maintenance checks to be carried out To ensure that your monitor functions properly and safely you mus adhere to the standards stated in this manual Chapter 8 Test and Inspection Matrix 79 When to Perform Tests Blocks W hen to Perform Tests Blocks Table 20 shows which test blocks to perform after repair and preventive maintenance tasks Table20
19. 15 Supported Modems US Q Communications Menu Data Transfer Stopped Q Degioaten Set Modem Init String MEM Pag ord A Moi oe Oras TOCO 20 go JANE DOE 194848 Ee mim aH 16 34 12 2 14 2001 T he components of the default initialization string are explained in the following table Table2 MultiTech MT 5600ZDX initialization string commands Switches to verbose mode To establish whether a modem connection is effective the modem replies to the signal sent by the monitor with an OK signal or an error signal rather than just a result code eg 0 1 etc If an OK is received then it is positive confirmation that the modem is connected and functional Switches to extended result codes along with smart dialling T he modem checks for a dial tone dials then checks for a ring back or a busy signal after dialling T his is not appropriate in local exchange branches Selects basic result codes and blind dialling dials even if there Is no line asan alternative to use in local exchange branches N o modem initiated flow control disables the flow control For detailed information about the M ultiTech Systems M T 5600ZD X and how to set it please refer to the modem s O wner s M anual 16 Chapter 2 System Interfaces Supported Modems T he commands above are only applicable to Rockwell C onexant based M ultiTech Systems mode
20. 2 eee eee P eens caw 68 M2922 60406 Knob Navigation Wheel Kit 69 M2922 44301 Keypad Kit 69 M2922 64004 Display Kit 69 M2922 66505 Side Connector PCB Kit TO M2922 66510 Interface PCB Kit TO M2922 66511 Rear Connector PCB Kit TO FM 2 When to Perform Test Blocks 80 Test and Inspection MatriX Sl Enclosure Leakage Current 87 Patient Leakage Current Values 89 IX List of Figures Fisure 1 FM 2 Block Diagram of Operation fj Figure 2 MNT OO ey iicugtuatbedededoteetchcci 4 35 08 2124 ayu deat eel bs cies arian er OR AC RR Slap 28 Figure 3 System A D Values diee up SRE CRABTREE ES ECTS SE AAAS 29 Figure 4 Diagnosing Malfunction Initial Diagnosis 32 Figure 5 Power Diagnosis Power Supply or Display 33 Figure 6 Monitoring Degradation Diagnostic Flow Chart 35 Figure 7 Assembly Drawing Sheet 1 Top Level Assembly 11 Figure 8 Assembly Drawing Sheet 2 Front Case Assembly 12 Figure 9 Assembly Drawing Sheet 3 Rear Case Assembly 13 Figure 10 Assembly Drawing Sheet 4 Interface PCB Rear Connector PCB 74 Figure 11 Assembly Drawing
21. 3HS 339 ATla8W3SSV 3SVO LNOYS O3 F c 33HS 339 AT8N3SSV IVNINYAL C OL MOVIE ayog gals NIIS OL Gay p 133H9 133HS 339 gOd 4 1 NOH4 S318vo AI8IW3SSV 9 LA3HS 33s t AM3LLVS LO3NNOO 3SVO Uva A IgHN3SSV ONISNOH s3 xv3ds O ALIYV10d ALON ng Sheet 1 Top Level Assembly Assembly Drawi Figure 7 71 Chapter 7 Spare Parts Assembly Drawings LAVHS YsAdOONa NO LNNOW Jovid dlVid 33AO9 OLNI SH3NHOO ANVLS LVSH ANY MN3AnO1 N3AOO YSANOT YSAO TIVLSNI Od NIVA NO 9f OL LOANNOO 8 3SVO LNOYS NI 107S HONOYHL vs 318vO 31nOM sql Ul WN O ANOYOL XVW Q3 v 89d NIV ATaWassv 3SVO LNOMJ AV T1dSIGQ OL Sl1O3NNOO Zf s L33HS 33S 13NVd 3dis ANY god sql ul WN o HOLIO3NNOO JAIS FK ANOYOL XV dis OL C 044 Z e 9 SLOANNOO Sr i ik ee s id di T SA E qoauz 26 ng Sheet 2 Front Case Assembly Assembly Drawi Figure 8 Chapter 7 Spare Parts 72 Assembly Drawings V dIV L3d UUUUUU 5 H 3SVO NV3d3SH ANY QNVOS HYJ NI 9 7 7 HOLON HONOYHL S38IM 3 00 GNV Q3voa JOYJH43LNI NO Lae 8f OL 318VO YsANVAdS LO3NNOO BY SNOIHSND 1003 HV33M NI ONINAdO 39WV HONOYHL god 39OV4JMS3 LNI gn INOHJ S3a18VO L AMNBLLV8 3100s sq u S UN 90
22. FM 2 M2922A Antepartum Fetal Monitor SERVICE GUIDE M 2922 9000B Printed in Germany M arch 2002 Edition 1 PHILIPS Notice Copyright 2002 Philips Medizinsyteme Boeblingen GmbH All rights reserved Reproduction in whole or in part is prohibited without the prior written consent of the copyright holder Philips Medizinsyteme Boeblingen GmbH Hewlett Packard Strasse 2 71034 Boeblingen Germany Trademarks Microsoft is a U S registered trademark of Microsoft Corp Windows and Windows nT are U S registered trademarks of Microsoft Corp All other product and company names mentioned may be the trademarks of their respective owners Printing History M2922 9000A 08 01 M2922 9000B 02 02 Conventions Used in This Guide Warning A warning alerts you to a potential serious outcome adverse event or safety hazard Failure to observe a warning may result in death or serious injury to the user or patient Caution A caution alerts you where special care is necessary for the safe and effective use of the product Failure to observe a caution may result in minor or moderate personal injury or damage to the product or other property and possibly in a remote risk of more serious injury Note A note calls your attention to an important point in the text On your monitor this sign indicates that there is detailed AN information in this book which you mus read before proceeding with your task Caut
23. Kit Component Description Quantity Small Parts K it LCD assembly Window display with gasket 1 For contents of the Small Parts Kit refer to T able 10 on page 66 Chapter 7 Spare Parts 69 Breakdown of Spare Parts Kits by Component M2922 66505 Side Connector PCB Kit T able 17 M2922 66505 Side Connector PC B Kit Component Description Small Parts K it Side PCB with twin ultrasound and one Toco sockets 1 1 For contents of the Small Parts Kit refer to T able 10 on page 66 M2922 66510 Interface PCB Kit Table 18 M2922 66510 Interface PCB Kit Component Description Quantity Small Parts K it Interface PCB 1 For contents of the Small Parts Kit refer to T able 10 on page 66 M2922 66511 Rear Connector PCB Kit T able 19 M2922 66511 Rear Connector PCB Kit Component Description Small Parts Kit Rear connector PCB 1 For contents of the Small Parts Kit refer to T able 10 on page 66 70 Chapter 7 Spare Parts Assembly Drawings awings Assembly Dr ONISNOH edja5 v43ds SOSVAAO L SACAVMLNO 3OVd OL OSO ONIYNLOVANNVA sq ul G UNS90 00L 3nosol qaod Z SIVNIN USL dd Vv3ds Ol 82d FOVAYALNI WOuds 3 Iavo ej vds LO3NNOO 38v ava a Csql urs c uN90 co0 OL SNOYNOL Od 4 1 NO SNId god OL SLOANNOO dod NIVIA NO cf 8 Lr p LHSHS 33s sarTHW3ssv QHVOS NHVZMH CNV 3OV3331NI c LH
24. M2922 64001 Housing Kit Component Description Small Parts K it Front case Louver cover plate H andle Rubber feet cushions Speaker retainer spring 1 For contents of the Small Parts Kit refer to T able 10 on page 66 Chapter 7 Spare Parts 67 Breakdown of Spare Parts Kits by Component M2922 64002 Speaker Kit Table 12 M2922 64002 Monitor Speaker Kit Component Description Small Parts K it Speaker housing Bracket R A 4 40 Speaker retainer Speaker C able speaker assembly G asket speaker Pad battery front rear Label rear Pad battery front rear Pad battery right Pad battery left 1 For contents of the Small Parts Kit refer to T able 10 on page 66 M2922 40003 Battery Kit Table 13 M2922 40003 Battery Kit Component Description Small Parts K it Battery 6V 4AH lead acid sealed Quantity 1 For contents of the Small Parts Kit refer to T able 10 on page 66 68 Chapter 7 Spare Parts Breakdown of Spare Parts Kits by Component M3921 60406 Knob Navigation W heel Kit Table14 M2922 60406 Knob Navigation W heel Kit Component Description Ring retaining 3 8 shaft M2922 44301 Keypad Kit Table 15 M2922 44301 Keypad Kit Component Description Quantity Small Parts K it Keypad switch membrane 1 For contents of the hardware mounting kit refer to T able 10 on page 66 M2922 64004 Display Kit Table 16 M2922 64004 Display
25. Repair Actions Examine Reduce background room illumination If only the back light fluorescent tube Display or its high voltage driver has failed the display may be faintly visible Intensely Refer to page 50 for removal procedures Replace Refer to page 43 Battery Exchange the Monitor 34 If the display is not at all visible and there is total failure exchange the monitor Chapter 5 Troubleshooting Monitoring Degradation Problems Monitoring Degradation Problems Diagnostic Flow Chart Figure 6 illustrates a logical sequence of troubleshooting diagnostics when the monitor appears to be operative but the displayed results are suspect for any number of reasons T he resulting diagnosis will result in replacing either the monitor or the transducers Escribe Degraded Ferfarmance us k Channel s OK Selelct Diesma DC U Mode Y Channel A OK US y Channel s Swap TOCO 0K ble with H Trend Pl tY Minis bond DK Exchange Swap U och Monitor cable s with Channel good OK spare s Y ids H Exchange Replaced Processing ee gt Mani Cable is Circuits arg nitor Faulty Faulty Replaced Processing Cables are Circuits ara Faulty Faulty Use spare cable Repair older Ho apparent degradation Figure6 Monitoring Degradation Diagnostic Flow Chart Exchange Monitor Use spare cable s Exchange Repair older Monitor Chapter 5 Troubleshooting 35 Monitoring Degradation Problems
26. T he Small Parts Kit is supplied with every major spare part Chapter 7 Spare Parts 63 Exchange Parts Exchange Parts Monitor M2922A Table6 Exchange Assemblies M2922A xchange Part Ho M M29226800 68000 Entire monitor M sss 69011 TOCO Transducer M 1356 69011 U S Transducer Recorder M2925A Table 7 Exchange Assemblies M2925A M 2925 68110 Recorder 100V 120V M 2925 68220 Recorder 220V 240V 64 Chapter 7 Spare Parts Non Exchange Parts Non Exchange Parts Tablee8 Non Exchange Assemblies M2922A LL SI Lt M29260 WasmW oo 6 meson Sekt aa L WEZ SmHpyskt o e 2522 60511 Rex cometorbod 5557 3821 61000 Power supply 100v 120V 3821 61010 Power supply 220V 24 M 1380 61624 Serial interface cable to PC OB TraceVue and FM 2 viewer Chapter 7 Spare Parts 65 Supplies and Accessories Supplies and Accessories Table9 Supplies and Accessories M2922A Description M 1356 43203 Transducer knob adapters 3 pack Breakdown of Spare Parts Kits by Component M2922 64003 Small Parts Kit Table 10 M2922 64003 Small Parts Kit Component Description Screw mach Phillips head 4 40 X 3 16 Screw tri lob Phillips head 6 X 1 2 Ring retaining ext 1 8 shaft Screw tri lob Phillips head 4 X 3 8 Retaining ring for wheel Screw locking kit 66 Chapter 7 Spare Parts Breakdown of Spare Parts Kits by Component M2922 64001 Housing Kit Table 11
27. a single regulated 5V supply excitation T heamplified and filtered TO CO signal is converted by a 12 bit analog to digital converter providing an output scale of 2 56L SBs gram Mountings 10 T he monitor can be mounted in two ways using the following optional items GCX roll stand M 3909A GCX wall mount M 3904A Refer to thefitting instructions that come with the relevant option Chapter 1 General Information Routine Maintenance and Cleaning Routine Maintenance and Cleaning For detailed instructions on how to clean the monitor and the monitoring accessories see the Instructions for U se For instructions on cleaning the Recorder refer to the Imstructions for Use Chapter 1 General Information 11 Routine Maintenance and Cleaning 12 Chapter 1 General Information 2 System Interfaces Overview T he monitor has the following system interfaces e Serial I O interface Parallel O interface Note The serial and parallel interfaces are not electrically isolated against each other Serial I O Communications Interface TheRS 232 interface istotally isolated from the interface board through the use of high speed optical isolators and isolated 5 volt power supply The RS 232 communications interface port is for communicating with adesktop modem see Supported M odems on page 14 aGSM cal phone modem see Supported M odems on page 14 aPC AT computer The RS 232 communic
28. age the plastic screw mountings or case T he following tools are required small medium Phillips head screwdriver A torquesensitive tool with a torque range to 1 1 N m 10 in Ib accuracy 1 N m 1 in Ib needle nose pliers or Tinnerman tool 10mm socket driver for wheel encoder nut 3 16 socket driver T he rear case assembly consists of a molded plastic case in which the battery is stored T he speaker housing is mounted on the back of the rear case assembly and also forms the cover for the battery T hrough holes in the case cover are provided for the rear panel connectors that are mounted on the rear connector board Fuses T here are no customer or field replaceable fuses Chapter 6 Disassembly Reassembly Guide 39 Closed Case Disassembly Reassembly Procedures 40 Closed Case Disassembly Reassembly Procedures T his section describes the items that may be removed without disassembling the main case of the monitor T he speaker housing is attached to the back of the rear case T he speaker housing also acts as the battery cover To gain access to the battery first remove the speaker housing see Removing the Speaker H ousing on page 41 Caution Important for disassembly W hen disassembling the monitor make sure that the battery leads are disconnected O therwise it is likely that circuit damage will occur Caution Important for reassembly If the internal battery cable
29. aks Balu Gale sete OEA E E and hi 39 Closed Case Disassembly Reassembly Procedures 40 Contents Removing the Speaker Housing 41 Replacing the Speaker Housing 42 Removing the Battery 32 va CR AC 3 eta erac eec P3 Res 43 Replaeme the Batte s acea parv ce Ge NERA AE EE A 5555555505585 44 Battery Di posSal u u 0d derart and Eu GRE aus ek Seep ae aR ER ee Oa I tauna 44 Separation of Front and Rear Case Assemblies 45 SODSEQ LOTES cZ wth aes eee HR 95 1 3 3 9 9 9 1 208 8 AUR a arde b Ca Y a Eu 45 Rtedssembly ewes eos sees s sutura Sud buds ds dps sisi 46 Front Case Disassembly Reassembly Procedures 47 Removing the Navigation Wheel 47 Replacing the Navigation Wheel 48 Removing the Main PCB Assembly from the Front Case Assembly 49 Removing the LCD Assembly 50 Replacing the LCD Assembly ol Replacing the Main PCB Assembly 52 Removing the Keypad iut dut i bar deb duh 54 Replacing the Keypad iie ua bo iiri obo I PRIUS SY Y Gy HE DER Rog 54 Rear Case Disassembly Procedures 55 Removing the Rear Connector PCB and the Interface Board 55 Removing the Inter
30. ase Disassembly Reassembly Procedures Step 7 Reconnect the backlight power supply connector to J4 on the main PCB It is only possible to fit the connector one way round Step 8 Reconnect the keypad ribbon connector by inserting the ribbon cable fully into the connector at J6 on the main PCB through the locking cap which was left loosely fitted to the connector during disassembly Slidethe locking cap forward to secure the ribbon cable Chapter 6 Disassembly Reassembly Guide 53 Front Case Disassembly Reassembly Procedures Removing the Keypad T he keypad is attached to a recess in the front cover assembly by an integral double sided adhesive Step 1 From the face of the front bezel carefully pry up one corner of the keypad then peel it away from the front cover Note The keypad is made up of a number of different layers which may separate during removal Ensure that all layers are removed completely before a replacement is fitted Replacing the Keypad Step 1 Ensure that the recess in the front bezel for the keypad is clean Step 2 Thread the ribbon cable through the slot in the front cover Step 3 Carefully align one end of the keypad with the corresponding edge of the recess in the front bezel and carefully stick the keypad down working from one end to the other to avoid air bubbles 54 Chapter 6 Disassembly Reassembly Guide Rear Case Disassembly Procedures Rear Case Disassembly Procedures T his sect
31. ations protocol supports connections to O B TraceVue T hese connections are direct cable connection to the OB TraceVue system to supply real time patient data System O nline viamodem to supply complete patient records System Batch It will also be used for software upgrades in the future Chapter 2 System Interfaces 13 Supported Modems T he pinouts for the D B9 connector are shown in the following table Table1 Fully wired DB9 RS 232 Null modem pinouts Connects to pin 1 and 6 D ata Terminal Ready 2 T xD Transmit data to external devices 3 RxD Receive data to external devices 4 1 and 6 DCD DSR Data Carrier D eect D ata Set Ready kuymi Nemesis C T II T he cable M 1380 61624 is a 3 meter long fully wired RS 232 Null modem cable supplied with the viewer software It is also available as an OB TraceVue option Supported Modems 14 Note As modems are not designed to fulfil the electrical requirements of a medical device in terms of leakage current and isolation a modem must be located outside of the patient vicinity T he following modems are the only modems that are currently validated and supported Chapter 2 System Interfaces Supported Modems aMultiTech Systems M T 5600Z D X desktop modem aNokia6210GSM cellular phone modem GSM type MultiT ech Systems MT 5600ZDX Modem T he monitor sends the following default modem initialization string Default i Initializa
32. cessing Main Board Assy Processing Control Case Front Cover Assembly Display Control Figure 1 FM 2 Block Diagram of Operation Chapter 1 General Information 7 Mechanical Description Mechanical Description Asindicated in Figure 1 except for the battery speaker interface board and rear connector board all functioning components of the monitor are installed as sub assemblies of the case front cover assembly T here arefour sockets event marker Toco and two U S accessible on the left side panel T hese are mounted on a side connector PCB which is itself mounted on the main PCB T he case rear cover assembly includes the replaceable battery and the speaker assembly T he rear cover provides openings through which the three rear connector board mounted connectors serial parallel and power input are accessible Additional mechanical features are included in Chapter 6 D isassembly R eassembly G uide LCD and Backlight TheLCD panel isa monochrome LCD display It is a single panel display with a resolution of 320 X 240 pixels D ata to be displayed are stored in the main board D irect connection to the LCD panel is madethrough on board header assembly J 7 T he backlight of theLCD isa Cold Cathode Fluorescent Lamp CCFL mounted as part of the LCD panel T he AC high voltage is turned on and off by a digital control bit from the main board mounted drive Serial 1 O Communications Port T heRS 232 interface
33. closure Leakage Current Test 86 Safety Test 2 Patient Leakage Current Test 88 Rohs Eo d Alper 02 Bad Cc c ee eee ee ee ee E GEEA 89 Testine LFABSQUCOES uuu l ee eee dd iad aaa Qu Kx va a wa o ee whee es 90 Testing Toco Transd cers ee aa aay aha ee Ue Be ewe ads 90 Testing Ultrasound Transducers 92 Contents Table 1 Table 2 Table 3 Table 4 Table 5 Table 6 Table 7 Table 8 Table 9 Table 10 Table 11 Table 12 Table 15 Table 14 Table 15 Table 16 Table 17 Table 18 Table 19 Table 20 Table 21 Table 22 Table 25 List of Tables List of Tables Fully wired DB9 RS 232 Null modem pinouts 14 MultiTech MT 5600ZDX initialization string commands 16 FM 2 Error Codes uu us Ri debe shed lulu Seb Shed 08 sa nd foe kick 23 Power Up Default SettingSs 25 Service Menu Entries 27 Exchange Assemblies M2922A 64 Exchange Assemblies M2925A 64 Non Exchange Assemblies M2922A 65 Supplies and Accessories M2922A 66 M2922 64003 Small Parts Kit 66 M2922 64001 Housing Kit 67 M2922 64002 Monitor Speaker Kit 68 M2922 40003 Battery Kil 24626044 452
34. d CF Applied Parts the test measures AP GND Safety Tet according IEC 601 1 Clause 19 Report the highest value 86 Chapter 8 Test and Inspection Matrix Test Steps Safety Testing 1 Connect the external power supply output cord to the monitor T hen connect the appropriate external power supply input power cord to the analyzer as recommended by the analyzer operating instructions 2 Using the appropriate test cable connect the analyzer to a fixing nut of the RS 232 connector on the back of the monitor 3 Turn the monitor on 4 Perform the test as recommended by the analyzer operating instructions T heanalyzer leakage current indication must not exceed the values listed in Table 22 Table22 Enclosure Leakage Current Maximum Leakage Current pA Test Condition Polarity AAMI ANSI IEC 601 1 ES1 Standard S F C 1 O pen Supply 1 S E C Single Fault Condition Chapter 8 Test and Inspection Matrix 87 Safety Testing Safety T est 2 Patient Leakage Current T est Normal Condition Single Fault Condition S F C Open Supply Test Steps 88 T his test is applicable to Class 1 and 2 equipment type B BF and CF Applied Parts T he test measures patient leakage current from any individual patient connection to earth power ground in parallel t tests both normal and reversed polarity Safety Tes according IEC 601 1 Clause 19 Report the highest value T his test is applicable to Class 1 a
35. d rear case assemblies together W hen the reassembly is complete the edge of the case opening should sit evenly in the groove of the connector panel Align the ridge in the front case assembly with the groove in the rear case assembly Check that the four screw holes align correctly D rive in the four screws that hold the front and rear assemblies together T orque the screws to 0 7 to 0 9 N m 6 to 8 in Ib Do not overtorque the screws as the plastic screw mountings or casing may be damaged Step 7 Step 8 Refit the battery see Replacing the Battery on page 44 Refit the soeaker housing see Replacing the Speaker H ousing on page 42 Chapter 6 Disassembly Reassembly Guide Front Case Disassembly Reassembly Procedures Front Case Disassembly Reassembly Procedures T his section describes how to remove replace items from the front case assembly T he front case assembly includes the replaceable molded front case the main PCB the LCD assembly the front panel keypad and the navigation wheel First separate the front and rear case assemblies as described in the section Separation of Front and Rear C ase Assemblies on page 45 Removing the Navigation W heel T he wheel is afriction fit on the stem of the encoder T he encoder is attached to the main circuit board and has a threaded moulded base just below the rotating stem of the encoder T he threaded base accepts a 10 mm nut which fastens the e
36. d the power supply for correct opera tion Replace if necessary Watchdog timer is not functioning System received too many resets Recorder s software version number is incompatible Replace the monitor with the monitor a Flash memory type is incompatible with the software Phase lock loop lost lock non critical error No action required Chapter 3 Tests and Error Codes 23 Error Codes Table3 FM 2 Error Codes EX mem ction EJ Failed to allocate requested memory A problem with the C odec has been detected High half word of flash failed to program Replace the monitor Low half word of flash failed to program High half word of flash failed to verify Low half word of flash failed to verify 30 Error in communications micro controller Check the side connector PCB Replace if necessary None factory diagnostic infor EN 7 55 Faleitoceteafle O O O OOOO O y Flecoruptei F2 viene communication ror 71 Invalid Patient ID FM 2 viewer communication error None factory diagnostic infor Invalid sequence number FM 2 viewer communi mation only cation error bil annia o on Dx Printer erors N one factory diagnostic infor 34 l snn 2 0 Ta 4x Fatal procesor exceptions 24 Chapter 3 Tests and Error Codes 4 Power up Default Settings and the Service Menu Introduction T his section discusses use of the Power up D efaults M enu to configure power on default sett
37. e or troubleshooting problems To access the Service M enu press the navigation knob when the Power Status Frame is selected T he following can be viewed from the Service M enu 26 Chapter 4 Power up Default Settings and the Service Menu Service Menu Table5 Service Menu Entries EL NENNEN S View Error Log D isplaysthe error log menu View A D Values D isplays the Analog to D igital A D M enu System On Time Elapsed system on time expressed in hours System on time is not reset to 0 after the battery is replaced but is retained T his value is saved through power cycles Language English German Spanish Italian Portuguese French Russian Simplified Chinese Traditional Chinese Japanese T heService M enu lists the test and system related information screens Selection of an item in the menu will invoke that test or information screen T he test and information screens that appear in the Service M enu are as follows Error Log System Analog to D igital A D Values Chapter 4 Power up Default Settings and the Service Menu 27 Service Menu Error Log 28 T his screen displays the eight most recent error code types logged by the monitor After eight error code types have been logged the oldest error code type will be deleted as new error code types are added Adjacent to each error code will be an entry which isthe number of occurrences of that error T his meansthat if there are many occurrences of
38. ect the speaker cables by pushing the spade terminals onto the speaker terminals in the speaker housing Check that they are secure T he wires are not coded for polarity as the polarity is uncritical Speaker housing lugs Speaker terminals Step 2 Refit the speaker housing by sliding thetwo metal lugs at the top end of the speaker housing under the lip at the top of the battery housing aperture until it stops Step 3 Securethe speaker housing with the two fastening screws T orque the screws to 0 7 to 0 9 N m 6 to 8 in Ib Caution D o not overtorque the screws as the plastic screw mountings or the casing may be damaged 42 Chapter 6 Disassembly Reassembly Guide Closed Case Disassembly Reassembly Procedures Removing the Battery Step 1 Place the monitor upside down so that its top is resting on the work surface In this position the monitor leans back at a convenient angle that allows easy removal of the battery with the aid of gravity Step 2 Whilethe monitor isin this tilted position the battery will normally fall partly out of its housing If it does not then apply a little pressure on the terminal end of the battery nearest the work surface T his should cause the battery to fall partly out of the case Steo 3 Carefully renove the battery from the monitor T ake care not to put too much stress on the battery wires as you take the battery out of the case Step 4 Disconnect the battery cables b
39. ed As this manual covers all accessories consult your configuration listing to see which apply to your monitor Asthe only support strategy for the Recorder is unit exchange in the event of a malfunction or failure no repair or servicing information for it is included in this manual For routine care and maintenance refer to the Instructions for U se Only qualified service personnel should attempt to disassemble the monitor or to remove or replace any internal assemblies Chapter 1 General Information 1 Repair Strategy Who Should Read This Guide T his guide is for any technical personnel servicing and repairing the FM 2 monitor M 29224 You must understand English befamiliar with standard medical equipment installation procedures befamiliar with current conventional technical terms as used throughout this guide W hat to Do Next Familiarize yourself with the contents of this guide before attempting to service or repair the monitor Repair Strategy Reading operating error messages and the error log helpsto determine whether a fault is a hardware or software problem Fault rectification is accomplished by replacement of the defective part at the assembly level For example faults may be repaired by replacement of a complete board where the fault is identified or by exchanging the monitor Repair or replacement of individual components on the boards is not supported and should never be attempted T herea
40. face PCB from the Rear Connector PCB 56 Replacing the Interface PCB on the Rear Connector PCB 56 Replacing the Rear Connector Interface PCB Assembly 57 Removing the Handle a RR n 58 Removing the Foot Cushions 58 Main PCB Disassembly Procedures 59 Removing the Side Panel and Side Connector PCB 59 Replacing the Side Panel Side Connector PCB 61 4 Opare Pabts 3 9x 497909 2 9 3 9 SURES bE estera dob Os IOUEOGUGOGLIOLD 4 44 4 4 0 2 dade Ge S ILES ow i eds acu Nos Y Mar e ar ae ee bs 63 MA PALES sis u u 2 ee eoe At woe Gg Cu a woe uos qns bns bri brin Era Mos edo da S k S b iS s a 63 Exchange Parte a foe bi eed Mae SERRE ESSE EMRE eee oe eee Ss 64 Monitor M2922A Fever Crer ek e ace ce mca E EE OE rE dc ee ee 64 Recorder NMZ0Z0A dra iratacsir iet ctr cie Coto E dota tarder msg GUN E eas 64 Nor EXxehanse Parts s ee aq eee eh aa Ka wawa eee ee d RE ee E ad 65 Supplies and Accessories ce cers beeches chen seed betwee be ee bate Se susie s 66 Breakdown of Spare Parts Kits by Component 66 M2922 04009 Small Parts Kit 66 M2922 64001 Housing Kit 67 Contents Vii M2922 64002 Speaker Kit 68 M2922 40003 Battery
41. from the Front Case Assembly Step 1 Remove the navigation wheel see Removing the N avigation W heel on page 47 Step 2 Place the front case assembly with the bezel face down on the work surface T ake care not to damage the display Step 3 Disconnect the backlight power supply cable connector from J 4 on the main PCB Step 4 Disconnect the keypad ribbon cable connector from J 6 on the main PCB To remove the cable from the connector first release the locking cap to loosen the cable Slide the cable out leaving the cap loosely seated in the connector Step 5 UseaPhillips head screwdriver to remove the screw holding the main PCB assembly in placein the front cover assembly Connector J7 is on the underside of the board here T alj iiiiiii CREET TY aiaia i Jl er supply T L2 l I AD lt 2 NT E AT IZL nn Nic PCB a D E E E qu T VIII RS 2 i3 20 k 7 E Step 6 Rene then main a PC B by sity pulli Wawa meS the multipin LCD assembly connector at 7 on the main PCB Pull straight up to avoid bending the pins T here are now three separate items Front case assembly Rear case assembly Main PCB assembly Chapter 6 Disassembly Reassembly Guide 49 Front Case Disassembly Reassembly Procedures Main PCB assembly Rear case assembly Front case assembly Y Removing the LCD Assembly Warning High voltage is generated by the LCD
42. gain then exchange the monitor Chapter 3 Tests and Error Codes 21 Performance Test for Transducers Performance T est for Transducers T his tests the signal path to and from the transducers 1 Turn on the monitor and the recorder or printer 2 Connect oneor two U S cables and the T O CO transducer 3 Check that the display acknowledges the connected transducers in the appropriate frames Also refer to Testing Transducers on page 90 Error Handling T here are two types of error that you may see those that the monitor cannot self detect and those that it can self detect fan operational error occurs that is not self detected the monitor shuts down T here will beno audible or visual warnings or indicators faself detectable error occurs the monitor will do the following Display the error screen Sound an error tone Discontinue all monitoring functions 22 Chapter 3 Tests and Error Codes Error Codes Error Codes T heerror codes are primarily intended for diagnostic use at the factory T he errors their explanation and any service action required are shown in the following table Table3 FM 2 Error Codes _ a M onitor s memory Monitorsmemoryhasbeomecomupt become Monitors memory has become corrupt _ queue semaphore etc A task failed to check in with the r timer The CRC of the software in memory is invalid A voltage is out of range Check the battery an
43. ill the bottom of the carton with at least 2 inches of packing material 4 Placethe bagged unit on the layer of packing material and fill the box completely with packing material 5 Seal thecarton with packing tape 6 Label the carton with the shipping address and return address Chapter 1 General Information 5 Overview Of The Device Overview Of The Device General Description T he device description included in this chapter focuses on the functional performance of the replaceable assemblies that may be identified as the probable cause of an apparent malfunction Refer to the Instructions for U se for information about the operation of the monitor and of the Recorder T hat manual includes descriptions of the installation and setup of the monitor modes of operation recording of real time patient data and transmission of patient data to local or remote PCs Chapter 1 General Information Overview Of The Device Block Diagram of Operation Figure 1 illustrates the functional operation of the monitor including the accessories and options It incorporates features of the mechanical design indicating the physical relationship of the assemblies and components To AC Source a o 3 a 22 O Qo t 3 o gt t oO Ww 42m D wo c l D 0 m Pun a ie n o Bt hd oo Oo S eo c x Charging Battery Power Supply FHR CODEC Processing TOCO AID Pro
44. ings and the Service M enu to obtain service related information about the monitor Power up Defaults Settings T hese are parameters which can be changed by the user T he power up defaults allow you to create a power up default for many settingsin the monitor Power up defaults are the settings in effect each time the monitor is powered on T he power up default settings are configured at the factory prior to shipment Some of the parameters are stored when the monitor is powered down and these are classified as saved through power cycle T he factory default values are defined in Table 4 Table4 Power Up Default Settings Factory Default Saved Through Power Cycle TOCO Baseline set point M odem Initialization string Modem Phone number Chapter 4 Power up Default Settings and the Service Menu 25 Service Menu Table4 Power Up Default Settings Factory Default Saved Through Power Cycle D ata transfer Disabled Yes If real time transfer Data Transfer D estination Recorder Yes Printer Recorder Paper speed 3 cm minute Recorder Paper style U Time format 12 hour D ate today D ate format mm dd yy Patient ID time date encoded Language Configured language Y Service Menu T he purpose of the Service M enu is to allow factory field service and hospital biomedical technicians access to a series of test and system related information screens for the purpose of verifying monitor performanc
45. interface 14 placement non medical equipment 14 18 power low warning of 82 power supplies 9 power supply output icon 4 Index power on indicator icon 4 power on jingle 21 power on self test 2 19 20 81 checksum 20 error and error detection 21 explanation 20 jingle 21 performing 21 watchdog timer 21 power up defaults 25 29 alarm settings 25 data transfer 26 destination 26 date 26 format 26 explanation 25 language 26 modem init string 25 patient ID 26 phone number 25 recorder paper speed 26 recorder paper style 26 settings 25 time format 26 Toco baseline set point 25 US trace separation 25 prerequisites for readers 2 preventive maintenance battery exchange 80 83 printers supported PCL Level 3 18 supported PCL level 3 18 validated 18 printing enable disable icon 4 R rear case assembly 38 description 39 disassembly See disassembly procedures separation from front 45 Index rear connector PCB removal 55 removing interface board from 56 replacing interface PCB on 56 reassembly procedures 37 61 closed case battery 44 speaker housing 42 front and rear case 46 front case keypad 54 LCD assembly 51 main PCB 52 navigation wheel 48 main PCB side connector PCB 61 side panel 61 rear case rear connector interface PCB assembly 57 recorder cable 18 repair strategy 1 2 FM 2 Recorder 1 repairs battery exchanged 80 front end connector board excha
46. ion US law restricts this device to sale by or on the order of a physician Contents 1 General Information s e o nn o 1 INUIOGUCTION o 1014324544 149 4749959185 95515 06 VT ux uU X n a n S uuu IR 1 Who Should Read This Guide 2 Motto Do NOXEt cada d ma AE EE aie aed EA REX EA RM See EE RUE Z Repair DUP ALC OY usce domo woh ae e dear deas dud en paq aah oy S WR SO SD eee eee ee ee 2 Warnings Cautions and NoteS 3 symbols and DefinitionS hh han 4 Packing TOL ShIDMeN casares d rentre he ee tee greet eto nk PE EE eee eee D General IDSUCEUGUIOFES 33 n 4162273818118 1028 8 BOR GRON RC kuska ua us kue G48 Gal S 8 CR 5 Repacking in Original Carton 5 Repacking in a Different Carton 5 Overview Of The Device _ u s e RE a hehe REEL EL EEE bee eee wes 6 General Description 0c ccc ee eee rs 6 Block Diagram of Operation 1 Mechanical DescriptIon RR e eee 8 ECD and backs rererere raner Ae ees LSP PEPE IESE DES SO Se Se ee Hes 8 Serial I O Communications Port 8 Parallel I O Communications Port 8 Keypad and Navigation Wheel 9 PoweroupDlies eu
47. ion describes the items that may be removed replaced on the rear case assembly of the monitor First separate the front and rear assemblies as described in the section Separation of Front and Rear Case Assemblies on page 45 Removing the Rear Connector PCB and the Interface Board T heinterface PCB is connected at right angles to the rear connector PCB and is separable from It Step 1 From outside the rear cover use a 3 16 socket driver to remove the two standoff fasteners of the RS 232 connector and also the two standoff fasteners of the parallel connector Step 2 From inside the rear cover remove the rear connector PCB and the interface PCB connected to it Chapter 6 Disassembly Reassembly Guide 55 Rear Case Disassembly Procedures Removing the Interface PCB from the Rear Connector PCB Step 1 Using a Phillips head screwdriver remove the two screws on the connector side of the connector PCB k Rear connector board Interface board Step 2 Separate the two boards by disconnecting the two multi pin connectors at J1 and J2 on the rear connector PCB Ensure that you pull straight with no twisting action so that the pins do not get bent Interface board Replacing the Interface PCB on the Rear Connector PCB T he refitting procedure is the reverse of the removal procedure 56 Chapter 6 Disassembly Reassembly Guide Rear Case Disassembly Procedures Replacing the Rear Connector Interface PCB As
48. ions 58 Chapter 6 Disassembly Reassembly Guide Main PCB Disassembly Procedures Main PCB Disassembly Procedures T his section describes the items that may be removed replaced from the main PCB assembly of the monitor T he main PC B assembly is separable from the front case assembly Step 1 First separate the front and rear assemblies as described in the section Separation of Front and R ear C ase Assemblies on page 45 Step 2 Then removethe main PCB assembly from the front case assembly as described on page 49 Removing the Side Panel and Side Connector PCB Step 1 Useneedle nose pliers or a Tinnerman tool to removethe two T innerman fasteners securing the white plastic side panel to the underside of the main PCB Step 2 Theside panel is attached by screwsto the side connector PCB Remove this assembly from the main PCB by pulling it straight up disconnecting the multipin connector at J3 on the main PCB Chapter 6 Disassembly Reassembly Guide 59 Main PCB Disassembly Procedures J3 on main PCB side panel to the socket surrounds Access to the screws is gained through the holes in the side connector PCB Steo 4 Remove the side panel from the side connector PCB 60 Chapter 6 Disassembly Reassembly Guide Main PCB Disassembly Procedures Replacing the Side Panel Side Connector PCB Step 1 Step 2 Step 3 Step 4 Step 5 Placethe side panel on the side connector PC B so that the
49. ly Power supply connector symbol on monitor Power supply output connector on power supply Functional earth symbol on power supply Indoor use only symbol on power supply Class II equipment symbol double insulation Type BF applied part symbol on monitor Refer to accompanying documents RS 232 connector symbol on monitor housing RS 232 connector symbol on monitor label Printer connection symbol on monitor Chapter 1 General Information Packing for Shipment Packing for Shipment General Instructions To ship the monitor for any reason follow the instructions in this section Pack the monitor carefully Failure to follow the instructions in this section may result in loss or damage not covered by the warranty If the original shipping carton is not available use another suitable carton Repacking in Original Carton If available use the original carton and packing materials Pack the monitor as follows 1 Placethe monitor and if necessary accessory items in original packaging 2 Placein shipping carton and seal carton with packaging tape 3 Label carton with shipping address and return address Repacking in a Different Carton If the original carton is not available use the following procedure to pack the monitor 1 Placethe monitor in a plastic bag 2 Locatea corrugated cardboard shipping carton with at least 200 pounds per square inch psi bursting strength 3 F
50. ms At the time of printing the M ultiTech M T 5600ZD X istheonly desktop modem that has been validated for use with the monitor T he monitor may also work with other modems but this has not been tested and consequently no other modems are officially supported Customers may use any other modem after successful verification of several trace transmissions Nokia 6210GSM Instead of a conventional wired phone connection using a desktop modem a cellular phone can be used to transmit traces to the viewer or to OB TraceVue At the time of printing the Nokia 6210G SM isthe only cellular phone to date that has been validated for use with the monitor Customers may use any other modem after they have successfully verified several trace transmissions Chapter 2 System Interfaces 17 Parallel O Communications Interface Parallel I O Communications Interface 18 Caution General purpose personal computers and modems are not designed to meet the electrical safety requirements of medical devices The RS 232 and parallel connectors on the monitor are electrically isolated to permit safe connections to non medical devices which should be connected with a cable of sufficient length to prevent the non medical equipment from contacting the patient If a non medical device is connected to the serial port a recorder or printer connected at the same time to the parallel port should be located outside the patient vicinity as the two inte
51. n 1 N 7044 Trondheim Norway Tel 47 73 82 85 00 Fax 47 73 91 70 09 E mail sales metron no support metron no www http www metron biomed com T here are two general categories of safety test Ground integrity Electrical Leakage Chapter 8 Test and Inspection Matrix 85 Safety Testing Ground Integrity TheFM 2isaClass2 Type BF instrument It hasan external power supply and is constructed with double insulation T he FM 2 does not require an isolated Earth Ground terminal neither is one installed N o Protective Ground Continuity check is required Electrical Leakage T he following tests verify the electrical leakage of the monitor Enclosure leakage Current Patient Leakage Current Safety T est 1 Enclosure Leakage C urrent T est Normal Thistest is applicable to Class 1 and 2 equipment type B BF and CF Applied Condition Parts T he test measures leakage current of exposed metal parts of the Instrument Under Test It tests both normal and reversed polarity For type BF and CF Applied Parts the test measures AP GND Safety Tes according IEC 601 1 Clause 19 Report the highest value Single Fault Thistest is applicable to Class 1 and 2 equipment type B BF and CF Applied Condition Parts T he test measures leakage current of exposed metal parts of the S F C Open Instrument Under Test with one supply lead interrupted It tests both normal Supply and reversed polarity For type BF an
52. ncoder assembly to the front bezel Step 1 From the front remove the wheel by grasping the sides of the wheel firmly and pulling straight back from the monitor If the wheel is not easily removable by hand a small flat headed screwdriver may be used to gently pry off the wheel If necessary apply some adhesive tape to the front cover and or the head of the screwdriver to prevent any damage Step 2 Usea 10 mm hex socket or suitable closed spanner to unscrew the fastening nut on the outside of the front bezel Chapter 6 Disassembly Reassembly Guide 47 Front Case Disassembly Reassembly Procedures Replacing the Navigation W heel Step 1 If the front case assembly has been disassembled refit the LCD assembly see Replacing the LCD Assembly on page 51 and the main circuit board see Replacing the M ain PC B Assembly on page 52 to the front case assembly Step 2 Screw the 10 mm nut onto the threaded base of the encoder switch from the outside of the front bezel initially by hand Caution D o not overtorque If excessive torque is applied to the encoder nut damage will occur to the encoder switch D o not exceed the maximum allowable torque setting Step 3 Usingatorque sensitive tool torque the nut to 0 2 N m 28 3 oz in Step 4 Push the navigation wheel onto the shaft of the encoder 48 Chapter 6 Disassembly Reassembly Guide Front Case Disassembly Reassembly Procedures Removing the Main PCB Assembly
53. nd 2 equipment type B BF and CF Applied Parts T hetest measures patient leakage current from any individual patient connection to earth power ground in parallel with one supply lead interrupted It tests both normal and reversed polarity Safety Tes according EC 601 1 Clause 19 Report the highest value T his test requires a sample patient cable for each device parameter T hese must be configured as recommended by the safety analyzer operating instructions 1 Configurethe electrical safety analyzer as recommended by the analyzer operating instructions 2 Connect the appropriate external power supply input power cord to the analyzer as recommended by the analyzer operating instructions Connect the external power supply output cord to the monitor 3 Turn the monitor on 4 Perform the test as recommended by the analyzer operating instructions For each test condition the measured leakage current must not exceed that indicated in Table 23 Chapter 8 Test and Inspection Matrix Safety Testing Table23 Patient Leakage Current Values Maximum Allowable Leakage Current Test Condition Polarity DA TypeB amp BF 1 S E C Single Fault Condition System Safety T est W henever you connect a monitor to an obstetrical system such as Agilent O B TraceVue you must perform the System Test T he System Test consists of the Enclosure Leakage C urrent tests normal and single fault condition as described on 86 You m
54. nged 80 power supply exchanged 80 rear connector board exchanged 80 unit exchange 80 unit opened 80 roll stand 10 routine maintenance 11 RS 232 interface 13 modem desktop 13 GSM cell phone 13 OB TraceVue 13 pinouts 14 S safety tester 85 safety testing 84 safety tests 2 19 81 categories 85 electrical leakage 85 enclosure leakage current 81 86 normal condition 86 single fault condition 86 ground integrity 85 limits 84 local regulations 85 Metron safety tester 85 patient leakage current 81 normal condition 88 single fault condition 88 procedures 85 safety tester 85 standards 84 system safety test 19 test 1 81 test 2 81 test blocks 19 screwdriver Phillips head 39 serial interface 13 pinouts 14 to PC AT computer 13 service by qualified service personnel 79 philosophy 19 service menu 26 accessing 26 error log 27 28 explanation of entries 27 function 27 purpose 26 purpose of 26 system A D values 27 service tests overview 19 shipment 97 packing for 5 side connector PCB removal 59 side panel removal 59 small parts kit 63 software upgrades RS 232 interface 13 spare parts 63 assembly drawings 71 exchange assemblies M2922A 64 M2925A 64 exchange parts 64 M2922 40003 battery kit 68 M2922 44301 keypad kit 69 M2922 60406 navigation wheel kit 69 M2922 64001 housing kit 67 M2922 64002 speaker kit 68 M2922 64004 display kit 69 M2922
55. ond to the power ON front panel action or by complete loss of monitoring functions during operation Contact your local Agilent Response C enter D egraded operation performance might be indicated by the appearance of artifacts in the display or by gapsin the pixel display by intermittent actions or by obviously inaccurate measures of fetal activity etc Power ON Initial Diagnosis Totally Inoperative 7 Monitoring Power or Display Problem Problem Bo s Figure4 Diagnosing Malfunction Initial Diagnosis Chapter 5 Troubleshooting Power Problem Diagnosis Power Problem Diagnosis Diagnostic Flow Chart T heflow chart of Figure 5 shows a sequence of actions and decisions you can use after the initial diagnosis of a total fallure as a power supply or display problem Note If the apparent total failure is caused by a malfunctioning display backlight you may see a faintly lit display with the appropriate Power O n Self T est message T he troubleshooting under these circumstances is described in this section Frorn Figure 4 Total Failure Connect Power Supply Display Normal Examine display intensely Replace Battery s Display faintly Visible LCD Operational Exchange Circuits Faulty Monitor Replace Display Assembly Figure5 Power Diagnosis Power Supply or Display Chapter 5 Troubleshooting 33 Power Problem Diagnosis Diagnostic
56. pection Matrix Safety Testing Safety T est Procedures T he test procedures outlined in this section are to be used only for verifying the Safe installation or service of the product Safety checks at installation refer to Safety aspects directly related to the installation and setup activities and not to intrinsic safety features that have already been checked during final acceptance testing at the factory FD A 97 4179 M edical Quality Systems M anual A Small Entity Compliance Guide Q SR manual First Edition D ecember 1996 Chapter 14 Storage Distribution and Installation T his document may be viewed at http www fda gov W hen running safety tests on the peripheral components of the system refer to the documentation included with those products W hen performing safety tests you must use a standard safety tester You can use testers complying with IEC 601 1 internationally You may also use testers complying with any local standards and statutes applicable to the country of the installation For safety test procedures see the operation instructions of the safety tester used If using the M etron safety tester use your local regulations to perform the test for example in Europe IEC60601 1 IEC60601 1 1 intheUS UL2601 1 TheM etron Report should print results as detailed in this chapter along with other data N ote For information and ordering guides for M etron products contact M etron AS Travbaneveie
57. ponding guides in the front cover Step 2 Step 3 Step 4 Step 5 Step 6 Align the location notch at the patient connector end of the main PCB with the guide in the front cover while keeping the opposite end of the main PCB slightly raised and clear of the LCD connector pins J 7 on the main PCB At this stage check that the cables and connectors for the LCD backlight power supply and the front keypad do not get trapped underneath the main PCB but are free and accessible from the side of the main PCB W ith the guide in the front cover still located in the notch at the patient connector end of the main PCB carefully align the connector 7 on the main PCB with the corresponding pins on the LC D assembly Press down gently until the connector at J7 on the main PCB isfully seated on the pins on the LCD assembly C heck that the notch at the handle end of the main PCB aligns with the guide in the front cover and that the fixing holes in the main PCB align with the four screw mounts in the front cover T his will confirm that the 7 connector is correctly located Also check that the navigation wheel shaft is centred in theholein the plastic bezel recess so that the refitted wheel does not bind with the case U sing a Phillips head screwdriver fasten the fixing screw to the screw mount in the front cover at the handle end nearest to the navigation wheel encoder switch Chapter 6 Disassembly Reassembly Guide Front C
58. r eX EXE ee ee ee eee sS URES eee 6 OS s s SS 9 Measurements Channels hh 10 Ultrasound Channels ee ea Se Ce Ce Fe C6 FE Se we E SURE VUOLE ISi3 10 Toco Channel iu umm a buta tae Rate Sia hie ge ue Ses 10 IVECO UNTO LET SEE TECNICO TOL DOS ps Q Da ee ee se SS p bs ee 10 Routine Maintenance and Cleaning8 11 2 System Interfaces n n nns ld AC TIC m amas A tus sp eee eo oe ee eae et ee A ee ee 13 Serial I O Communications Interface 13 Supported Modems 2460466 F206 soo SA AAS EGG x aa OE RE REESE 14 MultiTech Systems MT 5600ZDX 15 INORIQUOZTOCHID M scares ERES RES S RE EE ES Bee ehh oh odo ep 17 Parallel I O Communications Interface 18 Contents v 3 Tests and Error Codes 19 Service Phulosopli suus ayayay RE SSS PASE SESS wa uui VE 19 Overview of the Service TestS 19 Checktrnge the Battery eet ra du ER PPP EDAD ARD E RD ROC RECS 20 WS CS cancers a a ua Ped dak see ae ee ae es a ee ee Iw 20 FM 2 Power On Self Test 20 What Happens During the Power On Self Test 20 Performing the Power On Self Test 21 Performance Test for Transducers
59. reno servicing instructionsin this manual for the Recorder M 2925A as a repair is effected by exchanging the unit only After any repairs you must carry out the following tests Power O n Self Test see FM 2 Power O n Self Test on page 20 Performance tests see Testing Transducers on page 90 Safety tests after repair see Safety Testing on page 84 2 Chapter 1 General Information Warnings Cautions and Notes Warnings Cautions and Notes T his guide uses three terms that are important for proper servicing of the monitor Warning Caution and N ote Warning A warning calls your attention to an action or a possible situation that may result in injury or death to you or the patient Caution A caution precedes an action that may result in damage to or malfunction of the monitor It indicates that special care is necessary for the safe and effective servicing of the monitor N ote A note calls your attention to an important point in the text On your monitor this sign indicates that there is detailed information in this book and the Instructions for U se which you must read before proceeding with your task Chapter 1 General Information 3 Symbols and Definitions Symbols and Definitions Symbol Definition Symbol Definition 220 240V 50 60 Hz 0 08A Remote marker input connector symbol on monitor D rip proof equipment classification on monitor Power input symbol on power supp
60. rfaces are not isolated against eachother T he parallel communications port is used to connect the FM 2 to the Recorder or to a standard PCL Level 3 printer Supported printers that have been validated at the time of printing are HP Deskjet 640c HP Deskjet 840c HPDeskjet 990 C Xi HP Deskjet 980 C Xi HP Deskjet 960c HP Deskjet 840c HP Deskjet 640c HP Deskjet 350 HP Photosmart 1215 A standard PC parallel printer cable is used IEEE 1284 compliant This is supplied with the recorder Although the same cable is used to connect the monitor to the Recorder or a PCL Leve 3 printer a different protocol is used for communicating between the monitor and the Recorder T his protocol does not conform to the IEEE 1284 norm and is actually a serial connection Chapter 2 System Interfaces 3 Tests and Error Codes Service Philosophy If the monitor detects a problem it displays an error screen that shows an error reference number and monitoring is discontinued In addition the errors are written to the error log see Table 3 FM 2 Error Codes on page 23 Read the system error log to determine whether the fault lies in the hardware or firmware T hese problems can be repaired by board replacement or unit exchange D o not attempt component level board repair Overview of the Service T ests A brief overview of the service tests that are used to verify performance following repairs or during rou
61. rs transducer touches the flat surface only with the button and that the transducer is parallel to the flat surface 8 TheToco display should read between 20 and 40 units abovethe Baseline Toco display 5 10 15 or 20 Toco display 20 40 Toco depending on Baseline units above the Baseline setting Figure 12 Testinga Toco Transducer 9 If the test fails repeat with another transducer If it still fails refer to Chapter 5 T roubleshooting Chapter 8 Test and Inspection Matrix 91 Testing Transducers Testing U Itrasound T ransducers Visual Check Check thetransducer for signs of damage Ensure that there are no cracks in the transducer housing or dome in the cable or the connector plug Electrical 1 Turn on the monitor Check 2 Connect thetransducer s to the U S 1 or U S 2 socket 3 Check that the display acknowledges the connected transducer s in the U Itrasound frame of the main monitoring screen 4 Increase the loudspeaker volume to an audible level 5 Holding the transducer in one hand move your hand repeatedly towards and then away from the surface of the transducer or gently tap the transducer surface with your finger Figure 13 Testing an Ultrasound Transducer 6 Check that a noise is heard from the loudspeaker 92 Chapter 8 Test and Inspection Matrix Testing Transducers 7 Thetransducer contains seven piezo electric crystals O rate 1 Figure 14 Position Of Crystal
62. s in an Ultrasound Transducer 8 Holding thetransducer in one hand move a flat bottomed pencil or similar object repeatedly towards and then away from each crystal T he distance between the pen and the transducer surface should be about 2 to 3 cm Figure15 Testing the Crystals in an Ultrasound Transducer 9 Check that a noise is heard from the loudspeaker for each crystal Chapter 8 Test and Inspection Matrix 93 Testing Transducers 10 If thetest fails repeat using another transducer If it still fails refer to Chapter 5 T roubleshooting 94 Chapter 8 Test and Inspection Matrix A A D values 27 29 accessory testing transducers 22 Toco 90 US 92 assembly drawings 71 B battery charging time 83 checking 20 disposal 44 importance of polarity 44 observing polarity 43 recharging 83 removal 43 removal replacement precautions 40 replacement 44 storing 83 using 82 block diagram of operation 7 C cables null modem 14 parallel printer 18 recorder 18 cautions 3 cleaning 11 closed case disassembly See disassembly procedures communications ports parallel 8 serial I O 8 crystals in US transducer 93 Index D demo mode 27 disassembly of major parts 38 tools 39 disassembly procedures 37 61 closed case 40 44 battery 43 speaker housing 41 speaker wires disconnection 41 front case 47 keypad 54 LCD assembly 50 main PCB 49 navigation wheel 47 main
63. se it should be turned off and removed from service W hat Happens During the Power On Self Test 20 The executable program is loaded from flash memory into Random Access Memory RAM A checksum algorithm is run to test the program just loaded into RAM fthechecksum test passes the watchdog timer is started T he purpose of the watchdog isto check that all tasks running concurrently on the monitor are operating correctly Chapter 3 Tests and Error Codes FM 2 Power On Self Test Thewatchdog timer is allowed to time out and the interrupt expected to occur is verified to have occurred Software will detect a watchdog failure if the watchdog timer does not expire within a specified amount of time Performing the Power On Self T est 1 2 3 Pressthe O n O ff button D InitiallytheLCD screen illuminates but is blank After two or three seconds the monitor plays a two tone power on jingle while performing the Power On Self T est At this point the monitor displays the start up screen showing the Agilent logo bootcode version and the application version Upon successful completion of the Power O n Self T est the display will show the main monitoring screen If an error is detected the monitor will display the error screen T heerror number is stored in the error log see T able 3 FM 2 Error C odes on page 23 If the Power O n Self Test fails try to cycle power again If it fails a
64. sembly Step 1 Place the rear connector interface PC B assembly into the dedicated recess Inside the rear case assembly See that the RS 232 parallel and power supply connectors fit into their respective slots in the rear case Step 2 From outside the rear case use a 3 16 socket driver to refit the two standoff fasteners of the RS 232 connector and the two standoff fasteners of the parallel port to secure the rear connector PCB in place Step 3 Ensure that the speaker cable connector is secure on the interface PCB Check that the two pins on the board are perpendicular to the board or leaning slightly towards the connector latch T his will ensure a firm connection Step 4 Routethe cables for the speaker and the battery Speaker cable connector onnector latch Chapter 6 Disassembly Reassembly Guide 57 Rear Case Disassembly Procedures Removing the Handle Each end of the handle isa friction fit on a cross shaped boss Step 1 Useflat bladed screwdriver to carefully pry one end of the handle Step 2 When the end of thehandle has begun to loosen from the boss usethe same technique to begin to pry up the other end Step 3 Alternately apply this prying action between each end of the handle until the handle is free of the rear case Removing the Foot Cushions T hefoot cushions are attached with an adhesive to the bottom surface of the rear cover and can be removed by lifting one end of the foot and peeling off ush
65. sing see Removing the Speaker H ousing on page 41 Step 2 Remove the battery see Removing the Battery on page 43 Step 3 Remove the four screws fastening the rear case assembly to the front case assembly using a Phillips head screwdriver Step 4 Separate the front and rear case assemblies Front case assembly Hear case assembly Groove Connector panel Note T he U S and T oco sockets protrude slightly from the face of the connector panel on the side of the monitor While separating the front and rear case assemblies you may feel some resistance at the connector panel end of the monitor in which case gently raise the handle end of the rear case assembly to help to clear the sockets Step 5 If the silicone tubing seal is to be replaced remove it Chapter 6 Disassembly Reassembly Guide 45 Separation of Front and Rear Case Assemblies Reassembly 46 Step 1 Step 2 Step 3 Step 4 Step 5 Step 6 Caution Ensurethat the cables for the speaker and the battery are correctly routed and accessible from the rear of the case for later connection Confirm that the patient connector PCB isfirmly mated to the main PCB T here should be no gap between the bottom of the patient connector PCB and the main PCB Carefully align the groove in the connector panel with the edge of the corresponding opening in the rear case moulding T ake care that it stays aligned while you push the front an
66. t use the FM 2 in a flammable atmosphere where concentrations of flammable anesthetics or other materials may occur Warning SHOCK HAZARD The power receptacle must be a three wire grounded outlet A hospital grade outlet is required Never adapt the three prong plug from the power supply or accessory to fit a two slot outlet If the outlet has only two slots make sure that it is replaced with a three slot grounded outlet before attempting to operate the monitor Warning SHOCK HAZARD Do not attempt to connect or disconnect a power cord with wet hands M ake certain that your hands are clean and dry before touching a power cord Warning Use only patient cables and transducers supplied with the monitor Use of any other patient cables may result in out of specification performance and possible safety hazards Chapter 8 Test and Inspection Matrix 77 Cautions Cautions 78 Caution U se care when transporting or moving the monitor to assure that the attached patient cables are stored so that they will not be damaged in the move Caution Keep the operating environment free of dust vibrations corrosive or flammable materials and extremes of temperature and humidity T he unit should be kept clean and free of transducer gel and other substances Caution Do not operate the unit if it is damp or wet because of condensation or spills Avoid using the equipment immediately after moving it from a cold environment
67. tely six hours on battery power at room temperature of 25 C from a fully charged battery with a minimum of two hours monitoring at 10 C from a fully charged battery T he age of the battery operating temperature and number of recharge cycles affects this A battery life cycle is approximately 200 charge discharge cycles Low Power W arning 82 A low power warning occurs when the battery power is running low T he battery fuel gauge flashes and a repetitive audible tone sounds Remaining monitoring timeistypically 30 minutes with a new battery at room temperature of 25 C In an older monitor in which the battery has had a number of recharge cycles it may occur when fewer minutes remain T he warning continues until the low power condition disappears when you connect the monitor to an AC power supply or until the system stops functioning because of thelow power You cannot silence it and you cannot adjust its volume T he monitor retains any stored fetal traces even if it shuts down because of lack of battery power Chapter 8 Test and Inspection Matrix Preventive Maintenance Recharging the Battery Usethe power supply to recharge the battery from an AC power source T his takes a maximum of 14 hours when monitoring simultaneously or eight hours if no monitoring occurs Typical times are 11 hours if you are monitoring simultaneously or 4 75 hoursif no monitoring occurs Storing A stored battery loses capacity over
68. time To minimize loss of capacity recharge the battery at least every six months A battery typically hasthreeto five years shelf life Preventive Maintenance T he only preventive maintenance task required for the monitor is battery exchange Life expectancy of a battery depends on the frequency and duration of use T he battery should be replaced every two years See Removing the Battery on page 43 and Replacing the Battery on page 44 Chapter 8 Test and Inspection Matrix 83 Safety Testing Safety T esting 84 T his section defines the test and inspection procedures applicable to the FM 2 fetal monitors U sethetablesin thefollowing section to determine what test and inspection results must be reported after a repair has been carried out Test Blocks in Table 20 tells you when to carry out the tests blocks Test and Inspection M atrix in Table 21 tells you the expected results of the tests and what to record Warning Apply the safety test limits set by the local standards and statutes applicable to the country of installation such as IEC 601 1 UL2601 CAN CSA C 22 2 No 601 1 M 90 The safety tests defined in this chapter are derived from local and international standards but may not be equivalent They areNOT a substitute for local safety testing Caution Successful completion of the patient safety tests does not ensure the correct and accurate functioning of the equipment Chapter 8 Test and Ins
69. tine maintenance follows All tests can be performed without removing the covers of the monitor Visual Test see page 20 Power On Self Test see page 20 Performance tests for transducers to check the processing of the signal from the transducers see Testing Transducers on page 90 Safety Tests T hese test the electrical safety of the monitoring system and must be carried out after upgrades and repairs You must use a safety testing analyzer System Safety T est see page 89 Safety T est Blocks see T able 21 T est and Inspection M atrix on page 81 Chapter 3 Tests and Error Codes 19 Checking the Battery Checking the Battery Before testing the monitor after repair or service ensure that the battery itself is not at fault See Battery C harging and M aintenance on page 82 Visual T est Visually inspect the monitor and its accessories after a repair and also on a regular basis as part of routine maintenance Ensure that the monitor cables line cords transducers and Instruments have no visible evidence of damage that may affect patient safety or monitoring performance Do not use if there is any sign of damage FM 2 Power On Self T est When the monitor is turned on it automatically performs a diagnostic self test T he self test continues during normal operation also If the monitor fails its self test it will display an error screen and will discontinue all monitoring functions In this ca
70. tion ATEOX4 amp KO r String T hisis the first string sent by the monitor and it is not customizable nor is it obviousto the user T he monitor expects to see an OK come back from the modem after the initialization string has been sent If an OK isreturned to the monitor that is confirmation that a modem is connected the monitor then sends the user customizable initialization string preceded by AT and followed by r T heAttention characters AT at the beginning of the initialization string start the command mode T he r at the end represents a Return when the characters entered in the command line and stored in the modem s command buffer are executed T he monitor always automatically enters the Attention AT and Return M characters T herefore the user never needs to enter AT or Vr T he dialing also works in the same manner T he user never needs to enter the return r after the phone number First the monitor sends AT D then the user entered phone number then r AT D is simply the command to dial with whichever dialing method is set asthe default T he default setting as shipped isTone dialing If it is necessary to changethe dialing method from Tone to Pulse or vice versa then this is specified in the user entered initialization string For example to changeto the Pulse dialing method simply enter a P in the modem initialization string Chapter 2 System Interfaces
71. to move the cursor on the LCD display forward or backward depending on which way the wheel is rotated Power Supplies T he unit is operated from a 6 volt 4 AH sealed lead acid battery T he power supply provides enough power to charge the battery even when the unit is operating T he monitor power is controlled by alternate button closures of the front panel membrane switch Unit operation sartsonly via a push of the front panel button but operation will sop after a delay of a few seconds when pushing the front panel membrane switch T his delay permits the main board processor to shut down in an orderly fashion after storing the parameters and data if any Chapter 1 General Information 9 Measurements Channels Measurements C hannels Ultrasound Channel Toco Channel T he monitor has two ultrasound sockets US 1 and US 2 located on the side panel of the monitor Either one or two M 1356A ultrasound transducers can be connected T he latter case allows twins monitoring Refer to the Instructions for Use for transducer specifications T hetransmitter pulsing the ultrasound transducer is gated by control circuitry and return signals are processed in the CO D EC circuitry on the main board T he Toco circuit uses a W heatstone bridge with two strain gauge elements mounted on a load beam T he differential output voltage is proportional to the force applied to theload beam through the plunger T heToco circuit is powered from
72. ust run thistest when connecting either a new or repaired monitor Chapter 8 Test and Inspection Matrix 89 Testing Transducers Testing T ransducers Testing Toco Transducers Visual Check Check thetransducer for signs of damage Ensure that there are no cracks in the transducer housing or dome in the cable or the connector plug Electrical 1 Turn on the monitor Check Connect the transducer to the T oco socket 3 Check that the display acknowledges the connected transducer in the T oco frame of the main monitoring screen 4 Lay the transducer face up on a flat surface for a few seconds 5 Set the T oco Baseline as follows a Highlight the Toco frame in the main monitoring screen by turning the navigation wheel b Press the wheel to enter the Toco Menu The existing Toco Baseline will be displayed c If you need to change this highlight the TOCO Baseline menu item and press the navigation wheel You will see a box containing the choices for setting the Toco Baseline d Highlight the desired Toco Baseline value by turning the navigation wheel and select by pressing the wheel e Exit the Toco menu by highlighting Return and pressing the navigation wheel 6 Zero the T oco by pressing the Co button 7 Turn the transducer over so that button is face down on the flat surface H old the cable at a point 25 cm from the transducer and ensure that the 90 Chapter 8 Test and Inspection Matrix Testing Transduce
73. y sliding the spade connectors off the battery terminals Caution D uring reassembly pay very careful attention to the polarity of the battery cable before reattaching T he red wire connects to the ve terminal the black wire connects to the ve terminal If the battery cable polarity is reversed circuit damage will occur Circuit damage caused by reversed polarity is not covered by the warranty Chapter 6 Disassembly Reassembly Guide 43 Closed Case Disassembly Reassembly Procedures Replacing the Battery Step 1 Connect the battery cables to the replacement battery paying careful attention to cable polarity Connect the red cable to the positive terminal marked in red Connect the black cable to the negative terminal marked in black Step 2 Carefully place the new battery into the battery housing Step 3 Reconnect the speaker and refit the speaker assembly See Replacing the Speaker H ousing on page 42 Battery Disposal Refer to practices and procedures used at the local institution when disposing of the battery Please conform to any local laws and requirements governing the disposal of lead acid batteries 44 Chapter 6 Disassembly Reassembly Guide Separation of Front and Rear Case Assemblies Separation of Front and Rear Case Assemblies Separation T his section describes the procedures required to separate the front and rear case assemblies of the FM 2 monitor Step 1 Remove the speaker hou

- Frank`s Hospital Workshop

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