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Service manual - Frank's Hospital Workshop

1. 4 19 CROEX C erated 4 21 System Setup Initialization 4 23 ECG Findings List Recording 22 4 24 Recording Resolution Setting 4 4 25 Cue Mark 4 26 Date and Time Setting iiti tete ee LEER 4 28 Setting the Date and Time 4 28 Board Umt Description 5C 1 01 9 5 1 Power Unii e 5 2 EGG Control OAM rsx costco casas cts ents ME 5 2 Flashi ROM BOa ids Lm 5 3 ec 5 3 Disassembly and Assembly 6C 1 You IE 6 1 Warnings and nein Ain EET bL 6 1 FROQUIFO 6 1 Board and Unit Location 222222 00 6 2 Cable Connection EUM 6 3 Removing the Top Casing nennen nnne nennen nnns nennen nennt nnns 6 4 Service Manual ECG 9010 9020 Rev B CONTENTS Removing the LCD Assy 6 5 Removing the Thermal Head ASSY
2. 3 6 System Error Message maa tene aaa 3 7 System Test Adjustment and Setting 4C 1 System estiu hama aa Uere tat exu en bas ba Kusi 4 1 ON SNA 4 1 Calling up the Test Level 1 ssssssesssseeeeeeeneeeeennneenn nennen nnne nnne 4 2 Calling up the Test Level cir cia ein an 4 3 Entering the System 4 4 Executing the System Test 4 5 Quitting the System estu nie in co ehe arse deni e e ners 4 6 Exiting the System Test Mode a 4 6 Demonslratiol u nu itii iaceret ied w o Se ents 4 7 izeo p 4 8 Thermal Head e 4 11 c 4 12 MOMON 4 13 Single Memory TestModeu u n un au aaa nennen nennen nennen 4 14 Continuous Memory Test 4 14 ECD LED TIR 4 15 4 17 m 4 18 COMMUNICATION
3. pas 1 14 ECG 9010K 1 14 ECG 9020K Electrocardiograpnh nente nnne 1 15 ECG 9020P Electrocardiogtrapli 2 cecidere suo ere dr 1 16 ECG 9022K Electrocardiograph 00 0 1 1 17 oru O 1 18 DIAG FA rc M p ET 1 19 Connection EE Suwaqa aqha 1 20 Maintenance 2C 1 FREPIACE MOM ssc ct UU 2 1 Periodic Replacement Schedule sse nnns 2 1 e CIE L 2 2 Cleaning and Greasing 2 2 Cleaning the Paper Mark Sensor and Paper Empty 2 2 Cleaning the Motor Rotation Sensor and Greasing the Motor Gear and Gear Meshed with Motor 2 3 Troubleshooting and System Error Message 3C 1 Troubleshooting Flowchart corriere ortae 3 1 Troubleshooting Table 3 4 Service Manual ECG 9010 9020 Rev B C 1 CONTENTS Section 4 Section 5 Section 6 2 Troubleshooting General Operation Problem 2 3 4 Troubleshooting Recording
4. 6 6 Removing the Motor ASSY edi te rt ue mu eua d 6 8 Removing the 6 9 Removing the Inverter Board 2 ESRA NEAT 6 10 Removing the ECG Control Board 6 11 Removing the Power UN ese 6 12 Replacing the Thermistor and Termistor 6 14 Removing the Battery Terminal 6 15 Removing the Magazine Assy enia aa Y XX aaa RR AERAR 6 16 Removing the Bottom ciiin need tnra ean 6 17 Replacing the Fuse on the Power 6 18 Replacing the Lithium Battery on the ECG Control 6 19 Section 7 Replaceable Parts List 7C 1 General Parts 2 4 1 0 0000 7 2 Top CASING ASSY uu c dc ec eee 7 4 Top Casing Assy RK 0007 for 9010 7 4 Top Casing Assy RK 0009 for 9020 7 5 Top Casing Assy RK 0044 for 9020 7 6 Top Casing Assy RK 0058 for 9022 7 7 Thermal
5. a 8 8 Service Manual ECG 9010 9020 Rev B C 3 CONTENTS CNJO091 to ECG Connector n 8 9 e E 8 10 CNJ021 to ECG Control Du 8 10 Boa t 8 12 CNI to ECG Control Borady sind eee 8 12 CN2 to LCD module n 8 12 External Input Output Socket nen nnne nnne 8 13 IOV SOCKS vag E 8 13 EXT Input CRO yu uu uu 8 13 C 4 Service Manual ECG 9010 9020 Rev B Conventions Used in this Manual and Instrument Warnings Cautions and Notes Warnings cautions and notes are used in this manual to alert or signal the reader to specific information WARNING A warning alerts the user to the possible injury or death associated with the use or misuse of the instrument CAUTION A caution alerts the user to possible injury or problems with the instrument associated with its use or misuse such as instrument malfunction instrument failure damage to the instrument or damage to other property NOTE A note provides specific information in the form of recommendations prerequirements alternative methods or supplemental information Explanations of the Symbols in this Manual and Instrument The following symbols found in this manual instrument be
6. r 4 4 Executing the System ER REL e ER He t ankle 4 5 Quitting the System 1 4 6 Exiting the System Test nennen nen 4 6 Demonstration nent etes 4 7 ROCOTO mI 4 8 Head e 4 11 sd e t 4 12 4 13 Single Memory Test Mode ensem snnt 4 14 Continuous Memory Test Mode 4 14 D cr 4 15 Inp t Unit 4 17 eas 4 18 Gommunication aote eoa iun 4 19 GRO EXTIQ si et hotte te etie fae db uma nutu 4 21 System Setup Initialization ssesssssssessseseeeeee nennen 4 23 EGCG Findings List Recording ss oit tend trece aret n tee ret recreo 4 24 Recording Resolution Setting n nnne 4 25 Cue Mark a a as nennen enitn 4 26 Date and Time Setting 4 28 Setting the Date 4 28 Service Manual ECG 9010 9020 Rev A 4C 1 4 SYSTEM TEST
7. LCD Assy for ECG 9020K 9020P 9022K only Thermal Head Assy ECG Control Board Motor Assy Speaker Assy Power Unit Service Manual ECG 9010 9020 Rev B 1 18 1 GENERAL Block Diagram NOTE The LCD module and inverter board are used for the ECG 9020K ECG 9020P and ECG 9022K only CNJO32 Piezo electric CNAO11 buzzer Motor Motor sensor 12 Mark sensor Membrane key CNJO33 40 CNJ021 80pin LCD module E CNJO12 12 CNJ031 D SUB ECG Control Board 5 pin H CNJO13 6pin TT EXT IN Inverter board xe Thermal head li a CNJ041 mini jack i CRO CN31 16pin AC CN11 CN021 i i i source Power Unit sh i CNJO35 30pin CNJO91 D SUB15pin Patient Input CN51 4pin CNJO36 12pin CNJO11 80pin CNJ011 12pin Battery Service Manual ECG 9010 9020 Rev B 1 19 1 GENERAL Connection Diagram Index Connector NK Code No Description 1 011 543993A ZHR 2 speaker cable L50 2 CNAO12 544002A ZHR 12 motor cable L120 65 3 CNA013 544029B FCN723 DF11 100 51021 40 4 CNA014 544011A EHR 4 battery terminal cable L150 5 015 544038A 51021 0500 51021 0600 L50 We cannot provide this cable seperately we can only provide it as part of a complete Speaker assy Refer to Speaker Assy in Section 8
8. cepe EET 1 3 Panel 1 5 9010 Electrocardiograph 224 4 aqata asia ss nnne 1 5 TOP VICW 1 5 Operation EET 1 6 Right Side Panel iih eei e bien e Bs see dab 1 7 ECG 9020K P Electrocardiograph a 1 8 VG e PE T 1 8 Operation u uuu 1 9 Right Side 2402 4 10 0 eene enne nnne nne nnns 1 10 ECG 9022K Electrocardiograph essesessseseeeeeeeeenneen nene 1 11 VIOW a 1 11 Operation Panel gesi miter tut 1 12 Right Side Ae R NE 1 13 KS OMAP OSI OM err NC 1 14 ECG 9010K 1 14 9020 Electrocardiograph 1 15 ECG 9020P Electrocardiograph 2 2224 00 1 16 ECG 9022K El ctrocardi ograph a u u Susu ush 1 17 T D m DOLLS D 1 18 Block Dag AMi u temone aS lass omi eei iiid 1 19 Diagram x cocco Aladdin AMA ev ates 1 20 Service Manual ECG 9010 9020 Rev B 1C 1 1 GENERAL Introduction This service manual provides useful information to qualified service personnel t
9. Service Manual ECG 9010 9020 Rev A 4 11 4 SYSTEM TEST ADJUSTMENT AND SETTING Key This is used to check the condition of the keys on the operation panel Procedure 1 Enter the system test number 02 Test level 1 or 03 Test level 2 and press the START STOP key 2 Press the key on the operation panel The name of the pressed key is printed if the key is functioning correctly To quit the test press the AUTO MANUAL key The instrument returns to the standby mode for entering the system test number NOTE The POWER and AUTO MANUAL keys cannot be checked by this test To check if these two keys are functioning correctly do the following e POWER ke Check that the power of the instrument is on or off when the POWER key is turned on or off e AUTO MANUAL key Check that the Key test is stopped by pressing the AUTO MANUAL key Check Procedure for Operation Panel Key Check that the name of the pressed key is printed Possible Source of Problem Corrective Action Damaged membrane key Replace the membrane key 4 12 Service Manual ECG 9010 9020 Rev A 4 SYSTEM TEST ADJUSTMENT AND SETTING Memory This is used to check the condition of the memory by comparing the data of the test patterns written to and read from each memory area The instrument provides two memory test modes single and continuous When single memory test mode is selected entire memory is tested once When continuous memory test m
10. 8 12 Service Manual ECG 9010 9020 Rev A External Input Output Socket SIO Socket Pin No Signalname Direction 1 FG 2 TXD Output 3 RXD Input 4 RTS Output 5 CTS Input 6 DSR Input 7 GND 8 HS Input 9 DTR Output 8 CONNECTOR PIN ASSIGNMENT Description Ground for main unit Transmission data Receiving data Request to send Clear to send Data set ready Ground for signal With modem DCD Without modem Short to 4 pin Data terminal ready Main Unit Side Connector on ECG Control Board Connector model NK code No JEY 9S 1A2B Mating Connector Connector DE 9P NK Code No 079362 Case DE C1 J6 NK Code No 080788 EXT Input and CRO Output Main Unit Side Connector on ECG Control Board Connector model NK code No SG8036 Mating Connector Mini plug AP 313 NK Code No 355456A Service Manual ECG 9010 9020 Rev A 8 13 es Manufacturer NIHON KOHDEN CORPORATION 1 31 4 Nishiochiai Shinjuku ku Tokyo 161 8560 Japan Phone 81 3 5996 8036 Fax 81 3 5996 8100 BS 169 S 3008 8818 021 6469 9016 021 6486 7218 JUR SEIS S HAM 601 8815 010 6804 9531 010 6804 7366 T NEED 371 375 8 2516 020 8777 9108 020 8778 1882 WHALE ARIAS 20 S 818 024 2340 2565 024 2383 2557 RRS MAP ABH 25 8 KIAM 42028 8 028 773 6236 028 773 6236 NIHON KOHDEN AMERICA INC 90 Icon Street Foothill Ranch
11. 912 12v 1 9Ah Name Patient Input connector EXT IN connector CRO OUT SIO connector AC power cord socket Battery compartment Equipotential ground terminal 1 GENERAL ECG 9020K P Top View Electrocardiograph VA NIHON KOHDEN cardiofaxGEM Name Operation panel Magazine recording paper container Magazine release button LCD screen Teop The keyswithes on the ECG 9020P have a name label instead of the symbol 1 8 Service Manual ECG 9010 9020 Rev B 1 GENERAL Operation Panel Oc oca 7 o9 ECG 9020K A Service Manual ECG 9010 9020 Rev B O 41 12 13 14 Name Battery charge lamp Battery operation lamp AC power lamp POWER key lamp MODE key RHYTHM key lamp FEED MARK key FILTER key lamp COPY CAL START STOP AUTO MANUAL key lamp F1 F2 F3 function keys AGE key SEX key 1 GENERAL Right Side Panel For the A mark refer to the descriptions for the Right Side Panel in Section 1 Panel Descriptions of the ECG 9020K or ECG 9020P Operator s Manual Battery Pack I LCF1912ANK 12v 1 9Ah Name 19 Patient input connector 20 EXT IN connector 21 CRO OUT 22 SIO connector 23 AC power cord socket 24 Battery compartment 25 Equipotential ground terminal 1 10 Service Manual ECG 9010 9020 Rev B ECG 9022K Top View El
12. CNA013 012 amp CNAO15 CNA011 CNA014 1 20 Service Manual ECG 9010 9020 Rev B Section 2 Maintenance Heplacement ect peer ind prt Ee bent onc her spe EE 2 1 Periodic Replacement Schedule sse 2 1 LET 2 2 Cleaning and Greasing Schedules 2 2 Cleaning the Paper Mark Sensor and Paper Empty Sensor 2 2 Cleaning the Motor Rotation Sensor and Greasing the Motor Gear and Gear Meshed with Motor 2 3 Service Manual ECG 9010 9020 Rev A 2C 1 2 MAINTENANCE This section describes the periodic replacement and cleaning of parts which are required to maintain the instrument in good working condition Replacement This subsection only describes replacement schedule for parts that need to be periodically replaced The actual replacement procedures are described in the section for Disassembly and Assembly Read the whole Disassembly and Assembly section especially its Warnings and Cautions before replacing any of the parts described here Periodic Replacement To maintain the performance of the instrument the parts listed in the table below Schedule must be periodically replaced by qualified service personnel Part NK Code Description Recommendation LCT 1912ANK 332543B Battery See below KPT 104 8MGFI NKC 541816 Thermal head After 30 km of recording
13. L hook ead hoo board y A 57 27 lt 6 8 Service Manual ECG 9010 9020 Rev A 6 DISASSEMBLY AND ASSEMBLY Removing the Speaker Assy 1 Remove the top casing as described in the Removing the Top Casing section 2 Remove the LCD assy as described in the Removing the LCD Assy section This step is for the ECG 9020K only 3 Disconnect the speaker assy connector from the ECG control board ECG control board Speaker Speaker assy connector Service Manual ECG 9010 9020 Rev A 6 9 6 DISASSEMBLY AND ASSEMBLY Removing the Inverter Board 6 10 WARNING The inverter board has a high voltage circuit for the LCD backlight This can cause shock up to 10 minutes after the power is turned off After the power is turned off wait 10 minutes before disassembling the instrument NOTE This procedure is used for the ECG 9020K only 1 Remove the top casing as described in the Removing the Top Casing section 2 Remove the LCD assy as described in the Removing the LCD Assy section This step is for the ECG 9020K only 3 Remove the M2 pan head screw holding the inverter board to the ECG control board 4 Remove the bundle of leads which connects the inverter board and ECG control board from the mini clamp on the power unit 5 Disconnect the inverter board connector from the ECG control board 6 Lift off the inverter board from the ECG control board Inve
14. Troubleshooting Table Use the troubleshooting table to locate identify and solve a problem in the instrument The problems are divided into general operation and recording Each category has its own troubleshooting table for fast and easy troubleshooting How to use the troubleshooting table 1 Determine which troubleshooting table to use 2 In the Problem column find the trouble item that matches the problem 3 Do the action recommended in the Corrective Action column 4 Ifthe problem is not solved do the action for the next possible cause or criteria 5 If none of the actions solve the problem contact your nearest Nihon Kohden dealer Troubleshooting General Operation Problem The power LED lights but there Faulty connection to the CNOI2 Check the connection to the CNJO12 is no display or backlight on the CNJ013 connector on ECG jand CNJ013 connector on ECG LCD screen control board control board Faulty Inverter board Replace the Inverter board Faulty LCD module Replace the LCD module The instrument does not operate Blown 011 or F012 power unit Replace the 011 or F012 power unit during AC power operation fuse fuse Faulty connection to the CNO33 Check the connection to the CNJ033 or CNJ035 connector on ECG land CNJ035 connector on the ECG control board control board Damaged power cord Replace the power cord Faulty power unit Replace the power unit Faulty
15. connected connected Faulty ECG control board Replace the ECG control board Electrodes not attached to the Make sure that the electrodes are patient properly attached to the patient Faulty ECG control board Replace the ECG control board Faulty connection to the CNJO13 Check the connection to the connector on the ECG control CNJ013 connector on ECG board control board Faulty ECG control board Replace the ECG control board Faulty LCD unit Replace the LCD unit Check the connection to the Check the connection to the CNJ032 connector on ECG CNJ032 connector on ECG control board control board Faulty speaker Replace the speaker assy 3 5 3 TROUBLESHOOTING AND SYSTEM ERROR MESSAGE Troubleshooting Recording Problem The recorder does not feed the recording paper when the Start switch is pressed The recording paper is fed but there is no printing The paper mark cannot be detected Sometimes the recorder does not print and blank recording paper is fed from the recorder The recording paper tracks zigzag or to one side 3 6 Dirty paper mark sensor Clean the paper mark sensor Faulty connection to the CNJ033 Check the connection to theCNJ033 or CNJ036 connector on the ECG and CNJ0336 connectors on the ECG control board control board Damaged membrane key Replace the membrane key Faulty ECG control board Replace the ECG control board The thermal head is
16. CA 92610 USA Phone 1 949 580 1555 Fax 1 949 580 1550 European Representative NIHON KOHDEN EUROPE GmbH Raiffeisenstrasse 10 D 61191 Rosbach Germany Phone 49 6003 827 0 Fax 49 6003 827 599 NIHON KOHDEN ITALIA S r l Via San Tomaso 78 1 24121 Bergamo Italy Phone 39 035 219 543 Fax 39 035 232 546 NIHON KOHDEN IBERICA S L C Ulises 75A E 28043 Madrid Spain Phone 34 917 161 080 Fax 34 913 004 676 NIHON KOHDEN SINGAPORE PTE LTD 70 Shenton Way 14 05 Marina House Singapore 079118 Phone 65 6224 6700 Fax 65 6224 6216 The model and serial number of your instrument are identified on the rear or bottom of the unit Write the model and serial number in the spaces provided below Whenever you call your distributor concerning this instrument mention these two pieces of information for quick and accurate service Model Your Distributor Serial number PRINTED IN JAPAN
17. Model S2B ZR Pin No Signalname Direction 1 SPKOUT Output 2 AGNDSND Service Manual ECG 9010 9020 Rev A 8 CONNECTOR PIN ASSIGNMENT Description Data bus Data bus Data bus 5 V for logic circuit Ground for digital circuit Ground for digital circuit Description Ground for main unit Transmission data Receiving data Request to send Clear to send Data set ready Ground for signal With modem DCD Without modem Short to 4 pin Data terminal ready Description Speaker output Ground for speaker 8 5 8 CONNECTOR PIN ASSIGNMENT CNJ033 to Speaker Model 52559 4092 Pin No Signalname Direction 1 5 Output 2 5 V Output 3 LED 00 Output 4 LED 01 Output 5 LED 02 Output 6 QRS Output 7 LED 04 Output 8 FILTER Output 9 LED 06 Output 10 LED 07 Output 11 LED 08 Output 12 LED 09 Output 13 LED 10 Output 14 LED 11 Output 15 LED 12 Output 16 LED 13 Output 17 LED 14 Output 18 LED 15 Output 19 LED 16 Output 20 LED 03 Output 21 ONLED Output 22 LED 05 Output 23 ACLED Output 24 DGND 25 CHGLEDK Output 26 CHGLEDA Output 27 PSW Input 28 DGND 29 K00 Input 30 K01 Input 31 K02 Input 32 K03 Input 33 50 Output 34 51 Output 35 KS2 Output 36 NC 37 NC 38 NC 39 NC 40 NC 8 6 Description 5 V for logic circuit 5 V for logic circuit LED display output LED display output LED display output QRS display LED output LED display output Filte
18. a bing bong alarm sound is generated and instrument returns to the standby mode for entering the system test number To cancel the test or cancel printing the test result press the AUTO MANUAL key Check Procedure for Single Memory Test Mode Check that no Error messages appear Possible Source of Problem Corrective Action Faulty memory on the ECG control board Replace the ECG control board Each memory mounted on the ECG control board cannot be replaced at memory component level Continuous Memory Test Mode Possible Source of Problem Corrective Action Faulty memory on the ECG control board Replace ECG control board Each This mode continues testing the entire memory until the AUTO MANUAL Key is pressed You can use this mode to check an intermittent memory problem Procedure Enter the system test number 05 Test level 2 and press the START STOP key To print the test result without quitting the test press the START STOP key All results of the tests performed until the START STOP key are pressed is printed on one page To cancel the test press the AUTO MANUAL key All results of the tests performed until the START STOP key is pressed are printed on one page When the test result is completely printed 8 repeating pips alarm sound is generated and the instrument returns to the standby mode for entering the system test number Check Procedure for Continuous Memory Test Mo
19. the Normal message is printed at the right of each electrode lead name in the test result If a lead is not connected the Error message is printed The following is an example printout of the input unit test result when the R RA lead is disconnected Input unit test result RF RL Normal R RA Error L LA Normal F LL Normal CI Normal C2 Normal C3 Normal C4 Normal C5 Normal C6 Normal Procedure 1 Connect the electrode lead to the instrument 2 Attach all tips of each electrode lead to the input check jig Input check jig 3 Enter the system test number 05 Test level 1 or 07 Test level 2 4 Disconnect one of the leads from the check jig and press the START STOP key The disconnected lead name is printed out 5 Repeat steps 3 and 4 for all leads by one To quit the test press the AUTO MANUALI Key The instrument returns to the stanby mode for entering the system test number Check Procedure for Input Unit Test Check that the lead off condition is detected correctly Possible Source of Problem Corrective Action Faulty ECG control board Replace the ECG control board Faulty input check jig Replace the input check jig Service Manual ECG 9010 9020 Rev A 4 17 4 SYSTEM TEST ADJUSTMENT AND SETTING Calibration This is used to check the sensitivity and time constant of the input analog signal processing circuit After starting the test the CAL waveforms for leads I II and
20. 001 1 Motor Assy RH 0001 Magazine Assy RK 0004 Thermal Head Assy RK 0005 Speaker Assy 0006 Battom Terminal Assy RK 0044 ECG 9020P Top Casing Assy SC 903D Power Unit UT 23563 ECG Control Board UT 23577 Flash ROM Board VL 0001 LCD Assy Optional KD 104E Cart sess KH 801E Patinet Cable Hanger DI 106D Fixing Plate for Cart YC 901D Carrying Case To order a replacement assembly above use the Code No To order a replacement component inside an assembly refer to Section 7 Replaceablet Parts List 1 16 Service Manual ECG 9010 9020 Rev B 1 GENERAL ECG 9022K Electrocardiograph ECG 9022K RK 0002 Bottom Casing Assy RK 0003 Internal Parts 1 Motor Assy RH 0001 Magazine Assy RK 0004 Thermal Head Assy RK 0005 Speaker Assy RK 0058 ECG 9022K Top Casing Assy Battom Terminal Assy SC 903D Power Unit UT 23564 ECG Control Board UT 2357D Flash ROM Board VL 0001 LCD Assy Optional cr prise KH 801E Patinet Cable Hanger mesas DI 106D Fixing Plate for Cart 901 Carrying Case To order a replacement assembly above use the Code No To order a replacement component inside an assembly refer to Section 7 Replaceablet Parts List Service Manual ECG 9010 9020 Rev B 1 17 1 GENERAL Location g G gt tc c LL for ECG 9020K 9020P 9022K only Inverter Board
21. 2 and press the START STOP key The following test patterns are printed This test automatically ends after the folowing has been printed The instrument returns to the standby mode for entering the system test number Printout of Test level 1 H XXXXX H XXXXX A J H XXXXX H XXXXX E H XXXXX z E H XXXXX 4 H XXXXX H XXXXX 10mm s 12 5mm s 25mm s H XXXXX z E H XXXXX z H XXXXX XXXXX 2 H XXXXX H XXXXX H XXXXX H XXXXX E H XXXXX Z H XXXXX ye H OXXXXX y H XXXXX E H XXXXX H XXXXX H XXXXX E H XXXXX Ji H Not printed Test level 2 Refer to the Thermal Head section for this check 50mm s Paper mark Small rectangle printed when the paper mark is detected E 4 8 Service Manual ECG 9010 9020 Rev A 4 SYSTEM TEST ADJUSTMENT AND SETTING Check Procedure for Diagonal Lines Check that all the diagonal lines are evenly and completely printed Possible Source of Problem Corrective Action A dirty thermal head can cause some parts 1 Clean the thermal head with the thermal to be unevenly or incompletely printed head cleaner pen If this does not fix the problem replace the thermal head A faulty thermal head can cause some parts 1 Clean the thermal head with the thermal at a certain position to be unevenly or head cleaner pen incompletely printed If this does not fix the problem replace the thermal
22. ADJUSTMENT AND SETTING This section describes System Test Overall how to check the operation of the instrument in the System Test mode how to output the ECG findings list in the System Test mode how to initialize the system in the System Test mode how to adjust the thermal head recording resolution and recording paper cutting position in the System Test mode how to set date and time in the System Setup mode The instrument has two System Test modes Test level 1 for operator and Test level 2 for qualified service personnel The test items marked with perform the same test in Test levels 1 and 2 Each Test level consists of the following system test items Test level 1 Test level 2 Demonstration e Recorder e Recorder e Thermal head Key e Recording resolution setting e Memory e Key e LCD LED Memory single e Input unit e Memory continuous e Calibration e LCD LED Communication e Input unit e CRO EXTI e Calibration e System Setup Initialization e Communication ECG Findings List Recording CRO EXTI e System Setup Initialization e Cue mark adjustment LCD is checked for the ECG 9020K only Service Manual ECG 9010 9020 Rev A NOTE In the description of some test items in this section whenever it is appropriate a description of the source of problem and its corrective action will be described in table form for fast and easy troubleshooting If none of the act
23. Connector n n 8 9 Flash ROM Board a ee oa b Eee ePi 8 10 CNJ021 to ECG Control Board 8 10 Inverter Boar aras oae pene et eere o ene ee Ce ed e cene dere adore 8 12 GNI1 to EGG Control Borad ttr eee pre ie sa 8 12 CN2 to LCD module nennen nennt nnns nnn rennes 8 12 External Input Output Socket eene nennen 8 13 SIO SOCKET eter id t EREMO HORE Me D Ferte ERAS 8 13 EXT Input and CRO Oulpul nennen nnne trennen nen 8 13 Service Manual ECG 9010 9020 Rev A 8C 1 Power Unit CN11 to AC Inlet Pin Signalname Description 1 AC AC power 2 DGND Ground 3 AC AC power CN21 to ECG control board Pin No Signalname Description 1 DGND Ground for logic circuit 2 DGND Ground for logic circuit 3 DGND Ground for logic circuit 4 DGND Ground for logic circuit 5 DGND Ground for logic circuit 6 DGND Ground for logic circuit 7 DGND Ground for logic circuit 8 DGND Ground for logic circuit 9 DGND Ground for logic circuit 10 DGND Ground for logic circuit 11 DGND Ground for logic circuit 12 DGND Ground for logic circuit 13 DGND Ground for logic circuit 14 DGND Ground for logic circuit 15 DGND Ground for logic circuit CN31 to Thermal Head Pin No Signalname Description 1 24 V 24 V for thermal head 2 24 V 24 V for thermal head 3 24 V 24 V for thermal head 4 24 V 24 V for th
24. Head Assy YZ 011H8 aea 7 8 Motor Assy 00 1 p M 7 9 Speaker Assy 0005 202 214 1 1 00000 000000010000 nnns nennt nennen nnn 7 10 Magazine Assy 0001 Eneas 7 11 Battery Terminal Assy RK 0006 u uu S ecd ph Specie ret 7 12 LOD ASSY 1 0001 uuu u 7 13 Patient Cable Hanger l i ideae 7 14 Section 8 Connector Pin Assignment cce 8C 1 P ower Urnu ce 8 1 CNTA to AG Inlet uu indi needed 8 1 CN21 to ECG control board etta eee 8 1 to Thermal Head E 8 1 CN514to Battery quqa saie na a Sa M 8 1 EGG Control BOA sieniniai ae 8 2 CNJO11 to Thermal Head 1 nennen nennen nnns rennes nnne 8 2 CNJO12 to Inverter Board feug dee emu nk 8 2 CNJOT19 to LOD 8 3 CNJO21 to Flash ROM Board a cuu n u usu u 8 3 CNJOS 1 to SIO 8 5 CNJ032 to Key Connector u uuu L u aS enian k nennen nnne enne 8 5 CNJOSS to ceret e ence hein eine 8 6 CNJO035 to Power Unit nemen assqa nnne 8 7 CNJ036 ER 8 8 CNJO41 to GRO GonmeCtor u n 8 8 CNJ043 to EXT INPUT Connector
25. LM32019T 545946 LCD Module After 10000 hours Motor ASSY GC 0011 Motor ASSY After 1000 hours BR2032 1F2 390765 Lithium battery See below Replace the battery when it cannot last for 30 minutes during battery operation at the temperatures between 20 and30 C Replace the lithium battery on the ECG control board when the No 08 or 09 system error message appears or after the lithium battery is used for 7 years The life time of the battery is approx 7 years Service Manual ECG 9010 9020 Rev A 2 1 2 MAINTENANCE Cleaning and Greasing This subsection describes the cleaning and greasing procedures for parts that must be cleaned and greased by qualified service personnel The cleaning procedures for parts that can be cleaned by the user are described in the Operator s Manual Cleaning and Greasing To maintain the performance of the instrument the parts listed in the table below Schedules must be regularly cleaned or greased Part Frequency Performed by Instrument external After each use User Thermal Head Once a month User Platen Roller assy Once a year User Paper Mark Detection Sensor Once a month Qualified service personnel Paper Empty Sensor Once a month Qualified service personnel Motor Sensor Once a year Qualified service personnel Motor Gear and Gear Once a year Qualified service personnel Meshed with Motor Gear Cleaning the Paper Mark 1 Remove the magazine The illustration below shows the location of the Sensor a
26. System Setup Initialization 10 1 Fl ECG Findings List Recording 11 2 F2 3 F3 4 AGE 5 SEX 6 MODE 7 RHYTHM 8 FEED MARK 9 FILTER Sytem Test Screen ECG 9020K stem Test Enter test number Press Start Stop kev to start test Test number l Service Manual ECG 9010 9020 Rev A 4 SYSTEM TEST ADJUSTMENT AND SETTING Calling up the Test Level 2 1 If the power is on turn it off NOTE Release the FEED MARK key immediately after the instrument starts printing If you continue to hold the FEED MARK key for more than 15 seconds the instrument recognizes that the FEED MARK key is short circuited and prints the system information Error 05 at the end of printing 2 Press the POWER key while pressing the FEED MARK and AUTO MANUAL keys together Hold the FEED MARK and AUTO M ANUAL keys until the instrument begins to print the system test procedure relationship between the input number and its corresponding key name on the operation panel and system test number list as shown below The Test level 2 is called up and the instrument is in standby mode for entering the system test number The System Test screen appears for the ECG 9020K only as shown below To cancel printing the following information press the START STOP key The only difference between the ECG 9010K and ECG 9020K printouts is the description of the key explanation Printout ECG 9020K System Test Test level 2 1 Recor
27. incorrectly Readjust the position of the thermal positioned head Faulty connection to the CNJO11 Check the connection to the CNJO11 connector on the ECG control connector on the ECG control board board or CN031 connector and the CN031 connector on the the power unit power unit Faulty thermal head Replace the thermal head Faulty power unit Replace the power unit Faulty ECG control board Replace the ECG control board Dirty paper mark sensor Clean the paper mark sensor Faulty connection to the CNJ036 Check the connection to the CNJ036 connector on the ECG control connector on the ECG control board board Faulty ECG control board Replace the ECG control board Faulty paper mark sensor board Replace the paper mark sensor board The input protection circuit which Check the electrode attachment to the protects the thermal head from patient and if necessary re position strong noise like hum is rejecting the electrodes so that a good ECG noisy waveforms waveform is displayed Dirty thermal head Clean the thermal head The recording paper is not Make sure that the recordig paper is properly set in the instrument aligned with the lower recording paper guide The thermal head is incorrectly Readjust the position of the thermal Inaccurate or worn out platen Replace the magazine assy mm ee Service Manual ECG 9010 9020 Rev A 3 TROUBLESHOOTING AND SYSTEM ERROR MESSAGE System Error Mess
28. of the system setup settings The System Setup mode is called up To cancel printing the list press the START STOP key 2 Enter a 3 digit number to call up the stanby mode for entering the new numbers for year month date hour minute or second respectively Refer to the Entering the System Test Number in this section for entering the numbers Following is the LCD screen when the year setting mode is called up Input setting number Enter getting number and prese Start Stop key Number 3189 Service Manual ECG 9010 9020 Rev A 4 SYSTEM TEST ADJUSTMENT AND SETTING Year Enter the system setup number 318 Month date Enter the system setup number 319 Hour minute Enter the system setup number 320 Second Enter the system setup number 322 To cancel the entered number press the AUTO MANUAL key NOTE You cannot enter numbers for second setting 3 Enter a 4 digit number to enter the new numbers of the year month date or hour minite The range of the number which is possible to enter is as follows Year 1980 to 2079 Month date 0101 to 1231 Hour minute 0000 to 2359 To cancel the entered number press the AUTO MANUAL Key Following is the LCD screen when the year 1998 is entered Input setting number Enter setting number and press Start Stop key Number 3181998 Service Manual ECG 9010 9020 Rev A 4 29 4 SYSTEM TEST ADJUSTMENT AND SETTING NOTE f
29. the ECG control board as described in the Removing the ECG Control Board section 5 Remove the expired lithium battery with a soldering iron and a pair of tweezers CAUTION Be careful of the polarity of the lithium battery when soldering it Incorrect attachment of the lithium battery causes the instrument to malfunction 6 Solder a new lithium battery to the ECG control board ECG control Lithium battery board Service Manual ECG 9010 9020 Rev A 6 19 Section 7 Replaceable Parts List General Parts Listu Dr ERR E Dx Na t pF eV RR PER 7 2 TOP CASING gt rr ERES 7 4 Top Casing Assy RK 0007 for 9010 7 4 Top Casing Assy RK 0009 for 9020 7 5 Top Casing Assy RK 0044 for 9020 7 6 Top Casing Assy RK 0058 for 9022 7 7 Thermal Head Assy 2 014 8 riesen eto e eu FR Fen tun Resa 7 8 Motor ASS 6 0011 7 9 Speaker Assy 0005 7 10 Magazine Assy BEIFQOQT uuu lu l ir tte Enn a 7 11 Battery Terminal Assy 0006 E 7 12 Assy 0001 7 13 Patient Cable Hangen etnies eec aee E
30. 114 040865A 299784 Qty 1 1 2 1 Description EHR 4 battery terminal cable 1 150 Battery bracket Battery terminal Battery cable tube Service Manual ECG 9010 9020 RevB LCD Assy VL 0001 Index NK Code Qty Description 1 545946 1 LCD module 2 541914 1 Ferrite 3 6114 092749A 1 Ferrite tape 4 6114 088344B 1 LCD holder 5 6144 092758A 1 LCD shield sheet Service Manual ECG 9010 9020 Rev B 7 REPLACEABLE PARTS LIST 7 13 7 REPLACEABLE PARTS LIST Patient Cable Hanger Index M tn Ut NN 00 10 PWN KF 7 14 NK Code No 6124 202372 6112 00 6045 2219 013205 2219 013214 2114 038707A 6113 016941 6113 016879A 6113 016888 308855 6113 016905 2114 038814B 6113 016923 6114 052392 2114 038672B 2219 011858 6114 052409 289768 6113 016897 6113 016914 2114 038681B 6114 052427 6113 016932 6113 011901 6114 035999 283702 6114 036008 Qty e e e e e N A A A e G e e e N N e N N Description CH panel N CH cover N CH cover screw CH knob spacer CH arm screw CH base plate N CH joint DN CH pipe 3N Taping screw M3x8 CH pipe cover IN CH joint spacer CH knob not 3N CH joint AN CH top arm screw CH spring axle 3 CH joint BN CH hexagon socket bolt M4x50 CH pipe 4N CH pipe cover 2N CH bottom arm screw CH joint CN CH knob nut 4N CH input box connector CH guide pin I
31. 40 C Operating humidity 25 to 90 RH Operating atmospheric pressure 70 to 106 kPa Storage duration and temperature 2 weeks or less 20 to 65 Depends on the battery Between 2 weeks and One year 15 to 40 C Over one year 15 to 25 C Storage humidity 10 to 95 RH non condensing Storage atmospheric pressure 70 to 106 kPa Recording paper storage temperature 20 to 50 C Recording paper storage humidity 25 to 9096 RH Electromagnetic compatibility Class B Other Indoor portable Dimensions and weight Dimensions 280 W x 52H x 216 D mm excluding protrusions Weight ECG 9010K Approx 1 9 kg without battery ECG 9020K P Approx 2 1 kg without battery ECG 9022K Approx 2 1 kg without battery Safety Safety standard IEC 60601 1 1988 IEC 60601 1 Amendment 1 1991 IEC 60601 1 Amendment 2 1995 IEC 60601 2 25 1993 IEC 60601 2 25 Amendment 1 1999 Type of protection against electric shock AC power Class I Batty power Internally powered equipment Degree of protection against electric shock Defibrillator proof type CF applied part when patient cable BJ 901D BJ 902D or BJ 903D is used Degree of protection against harmful ingress of water Ordinary equipment Degree of safety of application in the presence of a flammable anaesthetic mixture with air oxygen or nitrous oxide Not suitable for use in the presence of a flammable anaesthetic mixture with air oxygen or nitrous oxide Mode of operation Cont
32. 8234B 6123 010153A 6114 092731 6114 088362 541914 6114 092749 Qty 1 1 1 j Description Release button Ultra spring C105 Operation panel Assy for ECG 9020K Top casing for ECG 9020K Membrane EMI spring LCD filter Ferrite core FPC 24 12 3 Ferrite tape 7 REPLACEABLE PARTS LIST Service Manual ECG 9010 9020 Rev B 7 5 7 REPLACEABLE PARTS LIST Top Casing Assy RK 0044 for ECG 9020P Index NK Code Qty Description 1 6114 087853A 1 Release button 2 547525 1 Ultra spring C105 3 6143 011979 1 Operation panel Assy for ECG 9020P Top casing for ECG 9020K Membrane EMI spring LCD filter Ferrite core FPC 24 12 3 Ferrite tape 6123 010153A 6114 092731 6114 088362 541914 6114 092749 O0 t 7 6 Service Manual ECG 9010 9020 RevB Top Casing Assy RK 0058 for ECG 9022K Index 1 2 3 N QV tA NK Code No 6114 087853A 547525 6143 012595 6123 010153A 6114 092731 6114 088362 541914 6114 092749 Qty 1 1 1 Description Release button Ultra spring C105 Operation panel Assy for ECG 9022K Top casing for ECG 9020K Membrane EMI spring LCD filter Ferrite core FPC 24 12 3 Ferrite tape 7 REPLACEABLE PARTS LIST Service Manual ECG 9010 9020 Rev B 7 7 7 REPLACEABLE PARTS LIST Thermal Head Assy YZ 011H8 Index NK Code Qty Description 1 541816 1 Thermal
33. BLY AND ASSEMBLY Removing the Bottom Casing Service Manual ECG 9010 9020 Rev A NOTE The instrument label is not attached to the bottom of the provided new bottom casing If you want to attach the instrument label to the new bottom casing send the damaged bottom casing and we will provide the same instrument label at our price Remove the top casing as described in the Removing the Top Casing section Remove the LCD assy as described in the Removing the LCD Assy section This step is for the ECG 9020K only Remove the inverter board as described in the Removing the Inverter Board section This step is for the ECG 9020K only Remove the ECG control board as described in the Removing the ECG Control Board section Remove the Motor assy as described in the Removing the Motor Assy section Remove the power unit as described inthe Removing the Power Unit section Remove the battery terminal assy as described in the Removing the Battery Terminal Assy section Remove the magazine assy as described in the Removing the Magazine Assy section 6 17 6 DISASSEMBLY AND ASSEMBLY Replacing the Fuse on the Power Board NOTE A blown fuse indicates that there may be a faulty circuit in the instrument Always check the instrument for the cause of the blown fuse before replacing the fuse The illustration below shows the location of four fuses inside the instrument Three fuses a
34. E Ya ua Er te saa 7 14 Service Manual ECG 9010 9020 Rev B 7C 1 7 REPLACEABLE PARTS LIST When ordering parts or accessories from your nearest Nihon Kohden Corporation distributor please quote the NK code number and part name which are listed in this service manual and the name or model of the unit in which the required part is located This will help us to promptly attend to your needs Always use Nihon Kohden parts and accessories to assure maximum performance from your instrument Service Manual ECG 9010 9020 Rev B 7 1 7 REPLACEABLE PARTS LIST General Parts List Index 101 101A 201 205 206 207 208 209 210 211 212 213 302 303 304 305 306 307 308 309 310 311 312 313 401 402 404 405 412 502 503 505 506 507 508 509 510 511 512 7 2 NK Code No RK 0009 RK 0007 VL 0001 1124 037173 543984 6114 088371A UT 2357 6113 028492B 6113 028741B 6114 088335 UT 23561 6113 030453A 6114 073378A 515284 2229 000673 6112 010405A 6114 088291A YZ 011H8 6114 088308A GC 0011 6114 096077 6111 004405A RH 0001 6114 096086 6114 097085 SC 903D 6114 087764A 6114 088326A 6114 088317A 547507 RK 0006 6114 088398A 6114 087862A 6111 004388A 6144 005993A 6113 028483A 6114 094293 6114 088424A 547516 6114 088406A RK 0005 Qty j e 9 1 10 Description ECG 9020K top casing Assy ECG 9010K top c
35. ECG control board Replace the ECG control board Damaged membrane key Replace the membrane key The instrument does not operate The battery is not charged Charge the battery on battery power Blown F051 battery fuse Replace the F051 battery fuse Damaged battery Replace the battery Faulty connection to the CNJO33 Check the connection to the CNJO33 or CNJ035 connector on ECG and CNJ035 connector the ECG control board or the CN031 or control board and the CN031 and CNO051 connector on the power CN01 connector on the power unit unit 3 4 Service Manual ECG 9010 9020 Rev A 3 TROUBLESHOOTING AND SYSTEM ERROR MESSAGE No key or switch operation Only certain electrode lead waveforms are displayed on the screen or noise appears on the waveform No electrode lead waveforms are displayed on the screen or noise appears on all waveforms Vertical and horizontal strips appear on the LCD screen at constant intervals No sound Service Manual ECG 9010 9020 Rev A Damaged membrane key Replace the membrane key Faulty connection to the CNJO33 Check the connection to the connector on the ECG control CNJ033 connector on the ECG board control board Faulty ECG control board Replace the ECG control board The electrodes or cables Make sure that al electrodes and connections from the patient to cables connection from the patient the instrument is not properly to the instrument are properly
36. IO This test is performed by comparing the original test patterns sent from the output line with the test patterns received at the input line If any received test pattern is different from its original a Error message is printed A Normal message is printed if the communication line is normal With regard to TxD RxD line if the same data is printed the line is normal Every time the test of one set is repeated the number of Count of test increases by one Every time the error is detected during continuous test the Error count increases by one The test of one set takes about 5 seconds The following is an example printout of the communication test result Communication test result Count of test 1 Error count 0 DTR DSR Normal RTS CTS Normal TxD 00 RxD 00 Hospital NIHON KOHDEN HOSPITAL Model 9020K Version 01 01 Input unit version 01 01 Analizing version 01 01 Date Apr 24 1998 10 41 AM Cardiograph internal temp 46 5 C Preparation A locally made check jig is required for the test To make the check jig short ciruit the pins as shown below Connector Pin Assigment 1 FG TXD i NI RTS CTS DSR GND HS DTR 29 190 SO UE e eS Mating Connector Connector HDEB 9PF 05 Case HDE CTH Service Manual ECG 9010 9020 Rev A 4 19 4 SYSTEM TEST ADJUSTMENT AND SETTING Procedure 1 Connect the check jig to the SIO socket of the instrument 2 Enter the system test number 07 Test
37. J013 connector on Yes the ECG control board and the connector on the Inverter board Normal Check the F0102 battery fuse on the power board Normal The membrane key is faulty The ECG control board is faulty The power board is faulty The instrument does not operate during battery power operation The power board is faulty No Is the battery charged Charge the battery m Check the cable connection to the CN51 connector on the power board Normal Is the F0102 battery fuse Yes Replace the F0102 battery on the power board blown fuse on the power board No The power unit is faulty 3 2 Service Manual ECG 9010 9020 Rev A 3 TROUBLESHOOTING AND SYSTEM ERROR MESSAGE The recorder does not feed the recording paper when the Start switch is pressed Does the LED for the Start No switch light up Does the recorder print when the recording paper is manually pulled out from under the thermal head Check the cable connection The ECG control board is to the CNJ036 connector faulty on the ECG control board Does the paper empty Yes Check the cable connection mark blink H lto the CNJ036 connector N on the ECG control board o Normal e The ECG control board is faulty The paper mark sensor is faulty e The motor is faulty The ECG control board is faulty Service Manual ECG 9010 9020 Rev A 3 3 3 TROUBLESHOOTING AND SYSTEM ERROR MESSAGE
38. M Replace the ECG control board 08 All the system setup settings other than the Error 08 appears once after the lithium items described in the following note are battery is replaced Corrective action is not returned to the factory initial settings This required is because the lithium battery is replaced 09 Lithium battery is completely discharged Replace the lithium battery 10 Bus error Replace the ECG control board 11 Address error Replace the ECG control board Service Manual ECG 9010 9020 Rev A 3 7 3 TROUBLESHOOTING AND SYSTEM ERROR MESSAGE x Meaning O Corrective Action 12 Replace the ECG control board 13 Replace the ECG control board 14 Replace the ECG control board I5 EEPROM error This occurs due to the Replace the ECG control board EEPROM check error installed language error or communication error between the host and EEPROM 16 Replace the ECG control board 17 Replace the ECG control board 18 Install the local language 19 Install the local language Error in memory area for local language Re install the local language 20 Local language text file version does not Install the local language text file which is match the ECG software version the same version as the ECG software 21 ECG interpretation error Time over Check the input waveforms If any noise is superimposed on the waveforms find and eliminate the cause If no noise is superimpose
39. Reverse the instrument and remove the three M3 pan head screws 8 pan head screw CAUTION When opening the top casing be sure not to let the top casing fall off Otherwise the film cable which connects the top casing and ECG control board and the film cable connector may be damaged If the film cable is damaged you must replace it with a new top casing assy 2 Open the top casing in the direction of the arrow shown below 3 Release the lock of the film cable connector with the small flat blade driver and your finger as shown in the expanded illustration and remove the film cable Film cable connector Film cable Top casing 6 4 Service Manual ECG 9010 9020 Rev A 6 DISASSEMBLY AND ASSEMBLY Removing the LCD Assy NOTE This procedure is used for the ECG 9020K only 1 Remove the top casing as described the Removing the Top Casing section 2 Remove the four M3 pan head screws with spring washers which are marked with circles shown below 3 Disconnect the LCD assy cable from the ECG control board 4 Lift up the LCD assy so that the LCD assy flat cable is perpendicular to the control board and pull out the LCD assy film cable from the connector on the ECG control board to remove it LCD assy cable connector M3 pan head screw with spring washer LCD assy film cable Service Manual ECG 9010 9020 Rev A 6 5 6 DISASSEMBLY AND ASSEMBLY Removing the Therma
40. SERVICE MANUAL cardiofax GEM ELECTROCARDIOGRAPH ECG 9010K ECG 9020K ECG 9020P ECG 9022K 0634 001307B KOHDEN Section 1 Section 2 Section 3 CONTENTS Contents Conventions Used in this Manual and Instrument i Warnings Cautions and Notes d naa o o aa rada e i Explanations of the Symbols in this Manual and i CIC P Hm 1C 1 m 1 1 Service Policy ee T T TE 1 2 lares 2 1 8 1 5 ECG 9010K Electrocardiograph sess 1 5 VIGW kasqa 1 5 Operation Panel ssessssssssesesesseseeennen entnehmen entries entren rents nennen 1 6 Right Side Panel Sia kata 1 7 ECG 9020K P Electrocardiograph 1 8 Mid ER 1 8 Operation e ces ERR EST Lea inv E So uc E REEL dak 1 9 Fight Side Panel 1 10 ECG 9022K Electrocardiograph sese 1 11 View 1 11 Operation Panel a 1 12 Right Side 1 13 COMPOSITIO
41. SO flat head screw M3x6 Bracket spring NOTE The parts marked with are replaced by parts A B and C when the Input Box is used Service Manual ECG 9010 9020 RevB 7 REPLACEABLE PARTS LIST 7 15 Service Manual ECG 9010 9020 Rev B Section 8 Connector Pin Assignment Bar T 8 1 to 22 a tare ata cline tee see ches e Da atte 8 1 CN21 to ECG control board Jurusan aa aaa nnns 8 1 CN31 to Thermal Head a 8 1 GN51 to Battery etie t ie ERE RENE 8 1 EGG Control Board u em eerie IRE rau t eic c de 8 2 CNJ011 to Thermal Head 8 2 CNJ012 to Inverter Board enne nnne 8 2 CGNJOTS to EOD Sua citt ee dee Get petite itis 8 3 CNJ021 to Flash ROM Board 8 3 to SIO COnnector ri riri enr er BRL tpe ie eb re Pit 8 5 CNJ032 to Key Connector 8 5 9083 to Speaker ite eere etie 8 6 GNJ095 to Power nlt uu tite ete pai reete iet 8 7 CNJ036 to a qana haqa risen nnns nnne 8 8 CNJ041 to CRO Connector a nens 8 8 CNJ043 to EXT INPUT Connector 8 8 CNJ091 to ECG
42. START STOP key After adjustment is completed the instrument prints out the test result as shown below and returns to the stanby mode for entering the system test number A number of 1 to 8 is printed at the right of Thermal head level if the thermal head resolution is adjusted correctly An Error is printed when it is necessary that the thermal head is replaced with a new one The following is an example printout of the Recording Resolution Setting system test Thermal head level 4 Service Manual ECG 9010 9020 Rev A 4 25 4 SYSTEM TEST ADJUSTMENT AND SETTING Cue Mark Adjustment 4 26 This is used to adjust the distance mm between the broken line on the recording paper and paper cutting part on the top casing so that the paper can be just cut at the broken line The ideal adjustment is that the broken line on the paper lines up with the cutting part on the top casing when cutting the paper Procedure 1 Enter the system test number 21 Test mode 2 and press the START STOP key to verify the distance between the broken line on the paper and the paper cutting part The instrument feeds the recording paper with the Cue mark adjustment 0 0 mm message and stops feeding it after a paper mark is detected The right edge of the paper mark against the paper tracking direction lines up the broken line on the paper 2 Putthe paper to the paper cutting part as if the paper was cut as shown below If the broke
43. V1 to V6 are printed as shown below If all the rectangular printed CAL waveforms have the amplitude of 1 mV and time constant of more than 3 2 seconds the sensitivity and time constant of the input analog signal processing circuit are normal 1Omn m 25mm s Filter OFF lOmm mV I v3 Procedure Enter the system test number 06 Test level 1 or 08 Test level 2 and press the START STOP key After all CAL waveforms for eight leads are printed the test automatically ends and the instrument returns to the standby mode for entering the system test number To cancel the test press the START STOP key or AUTO MANUAL key The instrument returns to the standby mode for entering the system test number Check Procedure for Calibration Waveforms Check that all the rectangular printed CAL waveforms match the following conditions in the illustration below Amplitude when CAL waveform is risen 10 mm 2 Amplitude of point which is 25 mm more than 7 3 mm from the rising point of the CAL waveform more than 7 3 mm 10 mm 2 Ks 25 mm Possible Source of Problem Corrective Action Faulty ECG control board Replace the ECG control board 4 18 Service Manual ECG 9010 9020 Rev A 4 SYSTEM TEST ADJUSTMENT AND SETTING Communication This is used to check the external communication input output line of the instrument using the check jig The instrument has one standard communication connector S
44. age During power up and operation the instrument continuously checks itself for system failure If a failure is detected system information and error history are printed on the recording paper and all operations are stopped System information and error history are also displayed ECG 9020 only or printed due to transient noise After printing the system information and error history the power of the instrument is automatically turned off NOTE If the same system information appears again after restarting the instrument do not use the instrument until service personnel has corrected the cause of the problem Sending a copy of the system information to your nearest Nihon Kohden distributor helps us to troubleshoot your problem quickly System Information Indicates an error number to identify the problem To solve the problem do the corrective action described below 00 Input unit error An interrupt signal of 2 ms Replace the ECG control board 01 Input unit error There is no response to the Replace the ECG control board 02 Input unit error Communication protocol error 03 4 bit CPU error Initialization error Replace the ECG control board 04 4 bit CPU error No response error Replace the ECG control board 05 A key on the operaton panel is short Replace the membrane key circuited 06 RTC error No interrupt signal of 125 ms Replace the ECG control board 07 RTC error Incorrect data in SRA
45. al settings NOTE The following settings are not reset to the factory initial settings even if the instrument is initialized e date and time e display language e recording resolution setting hospital name e cue mark position e direct modem connection e elapsed time e local language font e saved ECG data For settings marked with refer to the following corresponding subsection in this section for settings marked with refer to Changing Settings Before Measurement System Setup Screen in the ECG 9010K 9020K operator s manual Procedure Enter the system test number 10 Test level 1 or 12 Test level 2 and press the START STOP key If the initialization is completed the folloing occurs e 9010 One bing bong alarm sound is generated and the instrument returns to the stanby mode for entering the system test number e ECG 9020K A System Setup Initialization message appears with one bing bong alarm sound and the instrument returns to the stanby mode for entering the system test number Refer to the ECG 9010K 9020K operator s manual for the factory initial settings Following is the LCD display after the system has been initialized syatem lest Enter test number Press Start Stop key to start test Test number syetem Setup Initialization Service Manual ECG 9010 9020 Rev A 4 23 4 SYSTEM TEST ADJUSTMENT AND SETTING ECG Findings List Recording This is used to p
46. ar the respective descriptions as given Cardiograph Type CF applied part Attention consult Input terminal for analog N operator s manual signal Output terminal for analog The CE mark is a protected Equipotential terminal signal conformity mark of European Community The products herewith comply with the 2 Eject magazine release requirements of the lt gt Serial input output terminal buda 5 Medical Device Directive 93 42 EEC Service Manual ECG 9010 9020 Rev A i Operation panel for ECG 9010K onlly only for a part of REST PERIODIC equipment recording 5 gt Copy Off only f t of n T PDAS Paper speed v Calibration Battery charging lamp on screen START STOP recording Battery check lamp on Paper feed Automatic control screen QRS sync lamp Manual control Operation panel for ECG 9020K only Alternating current On only for a part of equipment Off only for a part of equipment Calibration Battery charging lamp on screen START STOP recording Battery check lamp on steen Paper feed Automatic control Manual control ii Service Manual ECG 9010 9020 Rev A Display for ECG 9020K only e QRS sync lamp Patient cable Attention consult operator s manual Service Manual ECG 9010 9020 Rev A Defibrillation proof Type CF applied part Section General iael Ea Em 1 1 Service POU CY EM 1 2
47. as described in the Removing the Top Casing section Remove the LCD assy as described in the Removing the LCD Assy section This step is for the ECG 9020K only Remove the inverter board as described in the Removing the Inverter Board section This step is for the ECG 9020K only Remove the ECG control board as described in the Removing the ECG Control Board section Remove the ground terminal assy Remove the two pan head screws with spring washers holding the power unit to the bottom casing CAUTION Be sure to use the correct length spacer bolt when replacing the power unit The two types of spacer bolts which are used in the power unit are almost the same length 7 Remove the three spacer bolts holding the power unit to the bottom casing pan head screw Spacer bolt 2 with spring washer shorter Spacer bolt 3 longer Thermistor wire Thermistor Battery cover terminal plate assy Service Manual ECG 9010 9020 Rev A 6 DISASSEMBLY AND ASSEMBLY 8 Disconnect the battery terminal assy connector from the power unit 9 Remove the ferrite tape holding the thermistor wire to the battery compartment 10 Remove the battery cover plate CAUTION Do not completely lift off the power unit from the bottom casing before removing the thermistor Otherwise the thermistor wire will break 11 Slightly lift up the powe
48. asing Assy LCD Assy High voltage label Inverter board Shield sheet 1 Flash ROM board Flash ROM board guide Shield plate Spacer bolt 1 ECG control board Shield sheet 2 Ground lug Bearing B F3 27 Power unit ground name plate Thermal head bracket Thermal head spring Thermal head Assy Mark sensor BD earth plate Motor Assy Thermal head assy Recorder plate Magazine Assy Connector spacer Thermal head bracket collar Power unit Flash ROM board cover Spacer bolt 2 Spacer bolt 3 Mini clamp TMC 6 Battery terminal Assy Thermistor seal Release lever Bottom casing Ground terminal Assy Battery case cover Battery case rubber Suction paper Rubber foot TM 166 12 Battery cover plate Speaker Assy Service Manual ECG 9010 9020 RevB 7 REPLACEABLE PARTS LIST 7 3 Service Manual ECG 9010 9020 Rev B 7 REPLACEABLE PARTS LIST Top Casing Assy Top Casing Assy RK 0007 for ECG 9010K Index NK Code No 6114 087853A 547525 6143 008671 6123 010278B 6114 092731A 541914 6114 092749 NYDN Rot Qty j j gem j Description Release button Ultra spring C105 Operation panel Assy Top casing for ECG 9010K Membrane EMI spring Ferrite core FPC 24 12 3 Ferrite tape 7 4 Service Manual ECG 9010 9020 RevB Top Casing Assy RK 0009 for ECG 9020K Index 1 2 3 10 t NK Code No 6114 087853A 547525 6143 00
49. ated and defibrillator protected 10 mm mV 2 100 dB or more 0 05 to 150 Hz 3 dB or more 500 samples s input unit 8 000 samples s 50 60 Hz OFF 75 100 150 Hz 25 35 Hz 3 2 s or more Electrode detachment polarization voltage Noise high frequency 5 10 20 mm mV LCD monochrome with CCFT backlight for ECG 9020K P ECG 9022K only 5 6 inch 320 x 240 3 channel Real time 12 ECG lead complexes 6 channel 2 5 s Rhythm lead 10s Waveform patient information recording settings operation mode heart rate QRS sync mark error message electrode detachment noise High resolution thermal printer head 200 dpi 8 dots mm 1 ms 104 mm 2 3 4 6 10 12 5 25 50 mm s 10 and 12 5 mm s available for ECG 9020K only Program type version date and time paper speed sensitivity lead name filter hospital name patient information timing mark event mark electrode detachment noise 48 dB or less at paper speed 25 mm s 10 mm 0 5 V 5 input impedance 100 kQ or more 0 5 V 1 mV 5 output impedance 100 Q or less RS 232C 2400 4800 9600 19200 38400 57600 115200 Communication method Baud rate 1 GENERAL Power requirement Line voltage 100 to 127 VAC 220 to 240 VAC 10 Line frequency 50 or 60 Hz Power input Up to 120 VA Power consumption 49 W or less Built in battery Voltage 12 V LCT 1912ANK Current consumption 6A or less Environment Operating temperature 10 to
50. crews with spring washers CAUTIONS WHEN REPLACING e Replace the thermal head bracket so that the mark sensor BD earth plate spring is not damaged e Hook the thermal head springs to the thermal head spring hooks after replacing the thermal head bracket Service Manual ECG 9010 9020 Rev A 6 7 6 DISASSEMBLY AND ASSEMBLY Removing the Motor Assy 1 Remove the top casing as described in the Removing the Top Casing section 2 Remove the LCD assy as described in the Removing the LCD Assy section This step is for the ECG 9020K only 3 Remove the thermal head bracket as described in the Removing the Thermal Head Assy section 4 Remove the two M3 pan head screws holding the motor assy to the bottom casing 5 Disconnect the motor assy connector from the ECG control board 6 Remove the bundle of leads which connects the mark sensor board and ECG control board from the lead hook 7 Remove the M2 pan head screw with spring washer holding the mark sensor BD earth plate to the bottom casing NOTE The motor assy does not contain the motor sensor BD earth plate To order the motor sensor BD earth plate refer to General Parts List in Section 8 8 Lift off the motor sensor board with the motor sensor BD earth plate M2 pan head screw Mark sensor BD spring washer earth plate Mark sensor board M3 pan head 22 with spring washer Motor assy connector ECG control
51. d on the waveform replace the ECG control board 22 entered information does not match the Replace the control board data in the flash memory NOTE e Error 05 also appears when any key on the operation panel is pressed and held down e When Error 08 appears the following settings are not reset to the factory initial settings even if the instrument is initialized display language hum filter hospital name direct modem connection recording resolution setting cue mark position elapsed time local language font saved ECG data 3 8 Service Manual ECG 9010 9020 Rev A 3 TROUBLESHOOTING AND SYSTEM ERROR MESSAGE Error History Indicates the latest three errors and the date of the latest error as in the example below System Information Error number 15 Date Apr 20 1998 10 41 AM Program 9020K Version 01 00 01 01 01 01 Error History No 1 Error number 15 Apr 20 1998 10 30 AM No 2 Error number 15 No 3 Error number 15 NIHON KOHDEN Mon Apr 20 10 41 11 JST 1998 Service Manual ECG 9010 9020 Rev A 3 9 Section 4 System Test Adjustment And Setting E 4 1 ce D erts 4 1 Calling up the Test 1 4 2 Calling up the Test Level 2 a 4 3 Entering the System Test Number
52. de Check that no Error messages appear memory mounted on the ECG control board cannot be replaced at memory component level 4 14 Service Manual ECG 9010 9020 Rev A 4 SYSTEM TEST ADJUSTMENT AND SETTING LCD LED This is used to check all LEDs on the operation panel LED LCD control circuit and all dots on the LCD ECG 9020K only First the LCD test starts and after the LCD test is complete the LED test starts The LCD test is not performed for the ECG 9010K LCD Test ECG 9020K only The LCD displays the following four types of test patterns every two seconds in the following order 1 Diagonal lines are displayed 2 Entire LCD lights up 3 LCD is completely dark but backlight lights 4 Backlight does not light The LCD image for each pattern changes as follow LED Test The LEDs on the operation panel light up by one and remain lit until all LEDs light up After all LEDs light up they go out at a time NOTE With regard to the LEDs of Battery charge lamp AC power lamp and POWER lamp check if they are in the following condition during the LED LCD test e Battery charge lamp Not lit This lamp indicates the remaining battery power before and after the LED test during battery operation e AC power lamp Lit e POWER lamp Lit when AC power is used Service Manual ECG 9010 9020 Rev A 4 15 4 SYSTEM TEST ADJUSTMENT AND SETTING 4 16 Proc
53. der 00 Cue mark adjustment 4 0 mm 13 To check system press system Thermal head 01 Cue mark adjustment 3 5 mm 14 test number then press Recording resolution setting 02 Cue mark adjustment 3 0 mm 15 START STOP key Key 03 Cue mark adjustment 2 5 mm 16 2 Memory single 04 Cue mark adjustment 2 0 mm 17 To quit the test press Memory continuous 05 Cue mark adjustment 1 5 mm 18 AUTO MANUAL key LCD LED 06 Cue mark adjustment 1 0 mm 19 Input unit 07 Cue mark adjustment 0 5 mm 20 Key Explanation Calibration 08 Cue mark adjustment 21 0 COPY CAL Communication 09 Cue mark adjustment 0 5 mm 22 1 Fl CRO EXTI 10 mark adjustment 1 0 mm 23 2 F2 System Setup Initialization 12 Cue mark adjustment 1 5 mm 24 3 F3 Cue mark adjustment 2 0 mm 25 4 AGE Cue mark adjustment 2 5 mm 26 5 SEX Cue mark adjustment 3 0 mm 27 6 MODE Cue mark adjustment 3 5 mm 28 7 RHYTHM System Setup transfer 29 8 FEED MARK System Setup receiver 30 9 FILTER Reset elapsed time 31 Download font 32 Sytem Test Screen ECG 9020K stem Test Enter test number Press Start Stop kev to start test Test number 5 Service Manual ECG 9010 9020 Rev A 4 3 4 SYSTEM TEST ADJUSTMENT AND SETTING Entering the System Test Use the following keys on the operation panel to enter a 2 digit number for Number executing the desired syst
54. ectrocardiograph 1 GENERAL Za NIHON KOHDEN cardiofaxGEM ail 1 2 3 OH 9v 9449155 23157 i x O ele Name Operation panel Magazine recording paper container Magazine release button LCD screen Ie Bs Service Manual ECG 9010 9020 Rev B 1 GENERAL Operation Panel O10 16 17 D _ 1 2 3 5 ow o ECG 9022K O A D h Qs n ENT LATE 10 41 12 13 14 Name Battery charge lamp Battery operation lamp AC power lamp POWER key lamp MODE key RHYTHM FEED MARK key FILTER COPY CAL key lamp START STOP key lamp AUTO MANUAL key lamp F1 F2 F3 function keys AGE key SEX key Service Manual ECG 9010 9020 Rev B 1 GENERAL Right Side Panel For the mark refer to the descriptions for the Right Side Panel in Section 1 Panel Descriptions of the ECG 9022K Operator s Manual Service Manual ECG 9010 9020 Rev B Battery Pack ok 1 912 12v 1 9Ah Name Patient input connector 20 21 22 23 24 25 EXT IN connector CRO OUT SIO connector AC power cord socket Battery compartment Equipotential ground terminal 1 GENERAL Composition ECG 9010K Electrocardiograph ECG 9010K RK 0002 Bottom Cas
55. edure Enter the system test number 04 Test level 1 or 06 Test level 2 and press the START STOP key After the test the instrument returns to the standby mode for entering the system test number To cancel the test press the AUTO MANUAL key Check Procedure for LCD Test Check that all the dots on the screen light up and go out according to the test pattern Possible Source of Problem Corrective Action Faulty cable connection to the CNJ012 or Check the cable connections to the CNJO12 CNJ013 connector on the ECG control and CNJ013 connectors on the ECG control board board Faulty LCD module Replace the LCD module Faulty ECG control board Replace the ECG control board Check Procedure for LED Test Check that all the LEDs on the operation panel light up Possible Source of Problem Corrective Action Faulty cable connection to the CNJ012 or Check the cable connections to the CNJO12 CNJ013 connector on the ECG control and CNJ013 connectors on the ECG control board board Damaged membrane key Replace the membrane key Faulty ECG control board Replace the ECG control board Service Manual ECG 9010 9020 Rev A 4 SYSTEM TEST ADJUSTMENT AND SETTING Input Unit This is used to check if the input analog signal processing circuit detects the lead off condition correctly using the provided input check jig If each lead is connected when the input analog signal processing circuit works correctly
56. em Test After all desired system tests are finished press the POWER key Mode 4 6 Service Manual ECG 9010 9020 Rev A 4 SYSTEM TEST ADJUSTMENT AND SETTING Demonstration This is used to learn or teach instrument operation While executing this test item the instrument generates dummy 12 lead ECG resting waveforms until the power of the instrument is turned off The ECG waveforms can be recorded and also displayed as shown below ECG 9020k only Procedure Enter the system test number 00 Test level 1 and press the START STOP key To quit the test turn the power of the instrument off by pressing the POWER key Dummy 12 lead ECG resting waveforms on LCD esting ECG M 35 Years dep em Lee rfc p Review Service Manual ECG 9010 9020 Rev A 4 7 4 SYSTEM TEST ADJUSTMENT AND SETTING Recorder This is used to check the condition of the recorder by printing test patterns The recording test patterns consist of the following and are printed in the following order 1 Diagonal lines 2 Characters H and X Test level 1 only 3 Grid 4 Paper speed scales 10 12 5 25 and 50 mm s 5 Paper mark detection The recorder test of Test level 1 contains the same recorder test and thermal head test as Test level 2 With regard to the check procedure for characters H and X refer to the Thermal Head section Procedure Enter the system test number 01 Test level 1 or 00 Test level
57. em test The specified system test numbers are indicated in the xx bracket at the right of each system test item on the printout output when the Test level 1 or 2 is called up Refer to the Calling up the Test Level X section To delete the entered number press the AUTO MANUAL key To delete a 2 digit number press the AUTO MANUAL key twice At this time the ones digit number is deleted before the tens digit number is deleted ECG 9010K Keys and Corresponding Number Values Number Key Number Key 0 GAIN 5 SPEED GAIN 1 LEAD lt left arrow 6 SPEED LEAD lt left arrow 2 LEAD gt right arrow 7 SPEED LEAD gt right arrow 3 FEED MARK 8 SPEED FEED MARK 4 FILTER 9 SPEED FILTER Operation panel GU f o O O aVRV1 V4 R iT n 1 m NF w O 3 B E ge ECG 9010K 2 5 2 9010 Program sheet fe 74 NIHON KOHDEN 9001087 0 0 o0 OO Q9 8 0 0 4 BACK SPACE TEST STOP For easy reference place the provided 9010 Program sheet on the operation panel ECG 9020K Keys and Corresponding Number Values Number Key Number Key 0 COPY CAL key 5 SEX key 1 F1 function key 6 MODE key 2 F2 function key 7 RHYTHM key 3 F3 function key 8 FEED MARK key 4 AGE key 9 FILTER key 1 2 3 4 5 nan x F2 Q O 8 o eec e TTT 6 7 8 9 0 4 4 Service Manual ECG 9010 9020 Rev A Executing the Sy
58. ent unplug the AC power cord from the instrument and remove the rechargeable battery Fuses cut off the power when an abnormality occurs in the instrument Eliminate the malfunction before replacing the fuse Use the correct fuse only The fuse rating is shown on the holder Removal and replacement of any component in the instrument should be done by qualified service personnel Use only parts recommended by Nihon Kohden to assure maximum performance from your instrument Required Tools Service Manual ECG 9010 9020 Rev A Anti static bench mat Wrist ground strap Phillips screwdriver insulated type Flat blade screwdriver insulated type Hex Allen wrench or hex keys Hex driver Tweezers 6 DISASSEMBLY AND ASSEMBLY Board and Unit Location The following see through diagram shows the location of the boards and units in the instrument See through Diagram Thermal Head Assy LCD Assy for ECG 9020K only Motor Assy Flash ROM Board Inverter Board Speaker Assy for ECG 9020K ECG Control Board Power Unit 6 2 Service Manual ECG 9010 9020 Rev A 6 DISASSEMBLY AND ASSEMBLY The following cable connection diagram shows the connection of the cables in Cable Connection the instrument Cable Connection Diagram amp CNA013 012 015 lt z r CNA014 6 3 Service Manual ECG 9010 9020 Rev A 6 DISASSEMBLY AND ASSEMBLY Removing the Top Casing 1
59. ermal head 3 24 V 24 V for thermal head 6 24 V 24 V for thermal head CN51 to Battery Pin No Signalname Description 1 BATT Battery power 2 BATT Battery power Service Manual ECG 9010 9020 Rev A 8 CONNECTOR PIN ASSIGNMENT Pin No Signalname Description 16 PWROVER 17 SPOFF 18 HEADRST 19 DCXAC 20 OFFKEY 21 CHGLEDA 22 CHGLEDK 23 ACLED 24 POWERSW 25 5 26 5 27 5 28 DCPOWER 29 DCPOWER 30 AGNDSND Pin No Signalname Description 7 24VGND Ground for thermal head 8 24VGND Ground for thermal head 9 24VGND Ground for thermal head 10 24VGND Ground for thermal head 11 24VGND Ground for thermal head 12 24VGND Ground for thermal head Pin No Signalname Description 3 BATT Battery power 4 BATT Battery power 8 1 8 CONNECTOR PIN ASSIGNMENT ECG Control Board CNJ011 to Thermal Head Model 63261 1490 Pin No Signalname Direction 1 THLATCH Output 2 THDATA Output 3 XSTROPEI Output 4 XSTROPEI Output 5 XSTROPEI Output 6 XSTROPEI Output 7 XSTROPEI Output 8 XSTROPEI Output 9 THERM Input 10 DGND 11 5 12 5 13 THSCLK Output 14 NC CNJ012 to Inverter Board Model 53261 0690 Pin No Signalname Direction 1 VIN Output 2 GND 3 VREMOTE Output 4 VBRIGHT Output 5 NC 6 XLCD Input 8 2 Description Data latch output to thermal head Print data to thermal head Thermal head driver enable output Thermal head driver enab
60. for Paper Mark Detection In one complete recorder test a small rectangle is printed near each paper mark if the paper mark is correctly detected by the mark sensor Refer to Cleaning and Greasing in Section 2 for the location of the mark sensor Check that a small rectangle is printed before each paper mark on the second and third pages only Possible Source of Problem Corrective Action If the paper mark is not occasionally Clean the paper mark sensor as described detected the paper mark sensor is dirty in the Maintenance section If the paper mark is not detected at all the Replace the paper mark sensor board paper mark sensor board is faulty About paper mark Every page of recording paper has a paper mark at the lower right corner Pages are divided by broken lines In the automatic recording the recording stops after the paper mark is detected by the mark sensor This enables the next printing to start from the beginning of the next page Recording paper Broken line Paper feed direction Small rectangle s Paper mark Service Manual ECG 9010 9020 Rev A Thermal Head 4 SYSTEM TEST ADJUSTMENT AND SETTING This is used to check the condition of the thermal head by printing out the characters H and X continually Procedure Enter the system test number 01 Test level 2 and press the START STOP key The characters H and X are printed as follows T
61. for system test 56 LD 07 Input Output Data bus 57 LD 06 Input Output Data bus 58 LD 05 Input Output Data bus 59 LD 04 Input Output Data bus 60 LD 03 Input Output Data bus 61 LD 02 Input Output Data bus 62 LD 01 Input Output Data bus 63 LD 00 Input Output Data bus 64 LD 23 Input Output Data bus 65 LD 22 Input Output Data bus 66 LD 21 Input Output Data bus 67 LD 20 Input Output Data bus 68 LD 19 Input Output Data bus 69 LD 18 Input Output Data bus 70 LD 17 Input Output Data bus 71 LD 16 Input Output Data bus 72 LD 27 Input Output Data bus 73 LD 28 Input Output Data bus 74 LD 29 Input Output Data bus 75 LD 30 Input Output Data bus 76 LD 31 Input Output Data bus 77 LD 15 Input Output Data bus 78 5 V 5 V for logic circuit 79 DGND Ground for digital circuit 80 DGND Ground for digital circuit Service Manual ECG 9010 9020 Rev A 8 11 8 CONNECTOR PIN ASSIGNMENT Inverter Board CN1 to ECG Control Borad Pin No Signalname Direction Description 1 VIN Output 10 4 to 12 V for backlight 2 GND Ground 3 VREMOTE Output Backlight On Off output 0 V Not light 5 V Light 4 VBRIGHT Output Backlight brightness control output 0 V when bright is set to maximum 5 NC Not connected 6 XLCD Input LCD identification input CN2 to LCD module Pin Signalname Direction Description 1 Iout Output Power for backlight 2 NC Not connected 3 Ioutreturn Input Power for backlight
62. head Check Procedure for Grid Check that all the parts of the grid are clearly evenly and completely printed Possible Source of Problem Corrective Action A faulty ECG control board can cause all or Replace the ECG control board some parts to be unclear unevenly or incompletely printed Check Procedure for Paper Speed Scales Check that the accuracy of each paper speed during actual recording is within 2 The scales for 4 seconds at 10 mm s and 12 5 mm s paper speeds and the scales for 2 seconds at 25 mm s and 50 mm s paper speeds are consecutively printed For example the length for 4 seconds on the time scale printed at 10 mm s paper speed must be within 39 2 mm to 40 8 mm Possible Source of Problem Corrective Action Badly positioned thermal head Adjust the thermal head position If this does not fix the problem replace the thermal head Damaged deformed or badly positioned Check the motor gear and its position motor gear If this does not fix the problem replace the motor gear Dirty motor rotation sensor Clean the motor rotation sensor as described in the Maintenance section Loose or damaged axle Tighten and check the axle as described in the Disassembly and Assembly section Faulty motor Replace the motor Faulty ECG control board Replace the ECG control board Service Manual ECG 9010 9020 Rev A 4 9 4 SYSTEM TEST ADJUSTMENT AND SETTING 4 10 Check Procedure
63. head KPT 104 8MGF1 NKC 2 6114 088389A 1 Shield sheet 3 Lo 2 SF uA 7 8 Service Manual ECG 9010 9020 RevB Motor Assy GC 0011 Index NK Code Qty Description 1 6113 028536A 1 Gear bracket 2 6114 087906 1 Gear 2 3 106993 1 E ring E 24 4 6114 087898 1 1 5 6114 087915 1 Gear 3 6 355108 1 Hexagon socket screw M2X4 7 6114 087889C 1 Motor gear 8 6114 088282A 1 Motor bracket 9 343975 1 Motor DN35 7306NIB 10 544002A 1 ZHR 12 motor cable L120 65 11 6190 005844 1 Motor sensor board 12 387626 1 Photo interrupter GP1A53HR 13 248438 1 Ceramic capacitor K104Z20Z5UF53H5 14 6190 016583 1 Mark sensor board 15 541834 1 Photo reflector NJL5801K F1 7 REPLACEABLE PARTS LIST Service Manual ECG 9010 9020 Rev B 7 9 7 REPLACEABLE PARTS LIST Speaker Assy RK 0005 Index NK Code Qty Description 1 0424 007654 1 RK 0005 7 10 Service Manual ECG 9010 9020 RevB Magazine Assy RH 0001 Index NK Code No 107002 6114 088415A 6112 010397A 6114 088353A 547534 6114 087871A 6113 028527A 6114 023887A QV tn Ut Qty 2 2 1 1 1 1 1 2 Description E ring E 32 Paper roller spacer Paper Magazine Paper magazine shaft Ultra spring C1477 Paper roller gear Paper roller 14 110 Brush Service Manual ECG 9010 9020 Rev B 7 REPLACEABLE PARTS LIST 7 REPLACEABLE PARTS LIST Index Q Battery Terminal Assy RK 0006 7 12 NK Code No 544011A 2113 013175B 2
64. ing Assy RK 0003 Internal Parts GC 0011 Motor Assy RH 0001 Magazine Assy RK 0004 Thermal Head Assy RK 0005 Speaker Assy 0006 Battom Terminal Assy RK 0007 ECG 9010K Top Casing Assy SC 903D Power Unit UT 23561 ECG Control Board UT 2357 Flash ROM Board Optional KD 104E Cart 801 Patinet Cable Hanger DI 106D Fixing Plate for Cart YC 901D Carrying Case To order a replacement assembly above use the Code No To order a replacement component inside an assembly refer to Section 7 Replaceablet Parts List 1 14 Service Manual ECG 9010 9020 Rev B 1 GENERAL ECG 9020K Electrocardiograph ECG 9020K RK 0002 Bottom Casing Assy RK 0003 Internal Parts GC 001 1 Motor Assy RH 0001 Magazine Assy RK 0004 Thermal Head Assy RK 0005 Speaker Assy 0006 Battom Terminal Assy RK 0009 ECG 9020K Top Casing Assy SC 903D Power Unit UT 23561 ECG Control Board UT 2357 Flash ROM Board VL 0001 LCD Assy Optional as KD 104E Cart bosses KH 801E Patinet Cable Hanger Pine DI 106D Fixing Plate for Cart MT Carrying Case To order a replacement assembly above use the Code No To order a replacement component inside an assembly refer to Section 7 Replaceablet Parts List Service Manual ECG 9010 9020 Rev B 1 15 1 GENERAL ECG 9020P Electrocardiograph ECG 9020P RK 0002 Bottom Casing Assy RK 0003 Internal Parts GC
65. inuous Performance Performance standard IEC 60601 2 51 2003 1 4 Service Manual ECG 9010 9020 Rev B 1 GENERAL Panel Description ECG 9010K Top View Electrocardiograph 4 NIHON KOHDEN cardiofaxGEM 1 aVRV1 V4 o aVF V2 VS lt all V3 Ve EXTIN O 1 gt e o o Operation panel 2 Magazine recording paper container 3 Magazine release button Service Manual ECG 9010 9020 Rev B 1 GENERAL 1 6 Operation Panel ECG 9010K I aVRV1 V4 aVF V2 V5 o o V aVF V3 Ve EXT IN O A pe owl D I E lt Ej S 9 15 Name 6 Battery charge lamp Battery operation lamp AC power lamp POWER key lamp FEED MARK key FILTER key lamp COPY CAL key lamp START STOP AUTO MANUAL key lamp REST PERIODIC key lamp AGE SPEED GAIN LEAD keys lamp QRS sync lamp 71 11 12 Service Manual ECG 9010 9020 Rev B Right Side Panel 1 GENERAL For the mark refer to the descriptions for the Right Side Panel in Section 1 Panel Descriptions of the ECG 9010K Operator s Manual Service Manual ECG 9010 9020 Rev B 19 20 2 22 23 24 25 Battery Pack ok 1
66. ion External signal input 10 mm 0 5 V Ground for analog circuit Service Manual ECG 9010 9020 Rev A CNJ091 to ECG Connector Model JAY 15S 1A28 Pin No Signalname Direction 1 C2 Input 2 C3 Input 3 C4 Input 4 C5 Input 5 C6 Iutput 6 SHIELD 7 NC 8 NC 9 R Input 10 L Input 11 F Input 12 Input 13 NC 14 RF Input 15 NC Service Manual ECG 9010 9020 Rev A Description ECG signal input ECG signal input ECG signal input ECG signal input ECG signal input Cable shield Not connected Not connected ECG signal input ECG signal input ECG signal input ECG signal input Not connected ECG signal input Not connected 8 CONNECTOR PIN ASSIGNMENT 8 9 8 CONNECTOR PIN ASSIGNMENT Flash ROM Board CNJ021 to ECG Control Board 8 10 Model 87BMN 080R Pin No Signalname Direction 1 DGND 2 DGND 3 5 V 4 XCSROI Output 5 XCSRO2 Output 6 SROMC Output 7 SROMR Output 8 LA 00 Output 9 LA 01 Output 10 LA 02 Output 11 LA 03 Output 12 LA 04 Output 13 LA 05 Output 14 LA 06 Output 15 LA 07 Output 16 LA 08 Output 17 LA 09 Output 18 LA 10 Output 19 LA 11 Output 20 LA 12 Output 21 LA 13 Output 22 LA 14 Output 23 LA 15 Output 24 LA 16 Output 25 LA 17 Output 26 LA 18 Output 27 LA 19 Output 28 LD 08 Input Output 29 LD 09 Input Output 30 LD 10 Input Output 31 LD 11 Input Output 32 LD 12 Input Output 33 LD 13 Input Outpu
67. ions solve the problem contact your Nihon Kohden representative 4 1 4 SYSTEM TEST ADJUSTMENT AND SETTING Calling up the Test Level 1 4 2 1 If the power is on turn it off NOTE Release the FEED MARK key immediately after the instrument starts printing If you continue to hold the FEED MARK key for more than 15 seconds the instrument recognizes that the FEED MARK key is short circuited and prints the system information Error 05 at the end of printing 2 Press the POWER key while pressing the FEED MARK key Hold the FEED MARK key until the instrument begins to print the system test procedure relationship between the input number and its corresponding key name on the operation panel and system test number list as shown below The Test level 1 is called up and the instrument is in standby mode for entering the system test number The System Test screen appears for the ECG 9020K only as shown below To cancel printing the following information press the START STOP key The only difference between the ECG 9010K and 9020 printouts is the description of the key explanation Printout ECG 9020K System Test Test level 1 1 Demonstration 00 To check system press system Recorder 01 test number then press Key 02 START STOP key Memory 03 2 LCD LED 04 To quit the test press Input unit 05 AUTO MANUAL key Calibration 06 Communication 07 Key Explanation CRO EX1 08 0 COPY CAL
68. l Head Assy CAUTION Do not touch the surface of the thermal head with your bare hands This can cause some dots of the thermal head to malfunction If you touch the surface of the thermal head clean it with the provided thermal head cleaner pen or cotton moistened with alcohol 1 Thermal head bracket Remove the top casing as described in the Removing the Top Casing section Remove the LCD assy as described in the Removing the LCD Assy section This step is for the ECG 9020K only Disconnect the thermal head assy connector from the thermal head assy Push the thermal head bracket fixed rib in the direction of the arrow shown below and lift off the thermal head bracket from the thermal head bracket fixed rib If the thermal head bracket is not removed completely push the other side of the thermal head bracket fixed rib the same as above and completely lift off the thermal head bracket M3 pan head screw 2 with spring washer ax Qo ws 5 gt Thermal head spring Thermal head assy s Thermal head a spacer Thermal head 2 j assy connector ze Thermal head bracket Re fixed rib Mark sensor BD NZ earth plate spring 2 6 6 Thermal head spring hook Service Manual ECG 9010 9020 Rev A 6 DISASSEMBLY AND ASSEMBLY 5 Remove the thermal head springs from the thermal head spring hooks 6 Remove the three M3 pan head s
69. le output Thermal head driver enable output Thermal head driver enable output Thermal head driver enable output Thermal head driver enable output Thermal head temperature input detected by thermistor Ground for digital circuit 5 V for digital circuit 5 V for digital circuit Data shift output to thermal head Not connected Description 10 4 to 12 V for backlight Ground Backlight On Off output 0 V Not light 5 V Light Backlight brightness control output 0 V when bright is set to maximum Not connected LCD identification input Service Manual ECG 9010 9020 Rev A CNJ013 to LCD Model FH3 12S 1 25DSA Pin No Signalname Direction 1 S Output 2 CPI Output 3 CP2 Output 4 NC 3 LCDON Output 6 LCD 0 Output 7 LCD 1 Output 8 LCD 2 Output 9 LCD 3 Output 10 5 V Output 11 DGND 12 28 V Output CNJ021 to Flash ROM Board Model 87BFN 080R Pin No Signalname Direction 1 DGND 2 DGND 3 T5V 4 XCSROI Output 5 XCSRO2 Output 6 SROMC Output 7 SROMR Output 8 LA 00 Output 9 LA 01 Output 10 LA 02 Output 11 LA 03 Output 12 LA 04 Output 13 LA 05 Output 14 LA 06 Output 15 LA 07 Output 16 LA 08 Output 17 LA 09 Output 18 LA 10 Output 19 LA 11 Output 20 LA 12 Output 21 LA 13 Output 22 LA 14 Output 23 LA 15 Output 24 LA 16 Output 25 LA 17 Output 26 LA 18 Output Service Manual ECG 9010 9020 Rev A 8 CONNECTOR PIN ASSIGNMENT Description Scannning start out
70. leshooting Flowchart ete rtr t e rer nr B ees 3 1 Troubleshooting Table s eee Do Gier bite 3 4 Troubleshooting General Operation Problem 3 4 Troubleshooting Recording Problem sese 3 6 System Error Message enne 3 7 Service Manual ECG 9010 9020 Rev A 3C 1 3 TROUBLESHOOTING AND SYSTEM ERROR MESSAGE This section describes how to troubleshoot the instrument using the following flowchart troubleshooting table system error messages at power up Troubleshooting Flowchart Use the troubleshooting flowchart to find the possible sources of a problem Troubleshooting Flowchart lt ECG 9020K only The power LED is on but there is no LCD display Is the LCD backlight on No Is the cable firmly Yes The ECG control board is faulty connected to the CNJ013 The Inverter board is faulty connector on the ECG control board N o The ECG control board 15 faulty Yes Check the cable connection to the CNJO12 connector on the ECG control board The LCD unit is faulty Service Manual ECG 9010 9020 Rev A 3 1 3 TROUBLESHOOTING AND SYSTEM ERROR MESSAGE The power of the instrument does not turn on Does the instrument operate during AC power operation Does the LED of the AC power Check the cable connections light to the CN
71. level 1 or 09 Test level 2 and press the START STOP key The instrument prints the test result of each test if the instrument detects an Error To print the test result without quiting the test press the START STOP key The results of all tests performed until the START STOP key are pressed are printed You can see the test number and the number of errors on Count of test and Error count on the printout respectively To quit the test press the AUTO MANUAL key The instrument prints the results of all tests performed until the AUTO MANUAL Key is pressed When the test result is completely printed 8 repeating pips sound is generated and the instrument returns to the standby mode for entering the system test number Check Procedure for Serial Communication Check that no error messages appear Possible Source of Problem Corrective Action Faulty ECG control board Replace the ECG control board 4 20 Service Manual ECG 9010 9020 Rev A 4 SYSTEM TEST ADJUSTMENT AND SETTING CRO EXT1 This is used to check the external output input terminal using the check jig The instrument has the input signal terminal EXT IN connector and output signal terminal CRO OUT connector at the rear of the instrument In this test the instrument prints the known triangular waveform signals generated inside the instrument at the lower trace on the recording paper the moment the instrument outputs the signals fr
72. message is printed and the instrument returns to the standby mode for entering the system test number The adjustment is completed Verify that the broken line on the paper lines up with the cutting part on the top casing 4 27 4 SYSTEM TEST ADJUSTMENT AND SETTING Date and Time Setting Setting the Date and Time 4 28 The date and time of the instrument are set in the System Setup mode In the System Setup mode you can also set the entire system settings of the instrument which determines the operation conditions of the instrument Refer to the ECG 9010K 9020K operator s manual for details This setting is necessary when the back up battery lithium battery is completely or almost completely discharged or replaced with a new one The life time of the back up battery is about 7 years You can note whether the back up battery is completely or almost discharged by the system error message Refer to the System Error Message section in Section 3 1 Call up the System Setup mode 1 If the power is on turn it off NOTE Release the FEED MARK key immediately after the instrument starts printing If you continue to hold the FEED MARK key for more than 15 seconds the instrument recognizes that the FEED MARK key is short circuited and prints the system information Error 05 at the end of printing 2 Press the POWER key while pressing the COPY CAL key Hold the COPY CAL key until the instrument begins to print the list
73. n line lines up the paper cutting part you do not have to perform this adjustment If there is a deviation between the broken line and paper cutting part go to step 3 Paper cutting part Tracking direction Broken line Paper mark 3 Mark the point where the paper is at the paper cutting part 4 Measure the distance mm between the broken line and marked point Measure direction A Marked point Tracking direction Apply to Apply to measured value measured value Broken line Paper mark 5 Apply the plus symbol to the measured value when the marked point is before the broken line against the tracking direction of paper or minus symbol to the measured number when the marked point is behind the broken line The resulting value is recognized as the adjustment value Service Manual ECG 9010 9020 Rev A Service Manual ECG 9010 9020 Rev A 4 SYSTEM TEST ADJUSTMENT AND SETTING The following is a list of the relationship between the adjustment value and its corresponding system test number you should execute System Test No Adjustment Value mm 4 0 3 5 3 0 2 5 2 0 1 5 1 0 0 5 System Test No pawa Adjustment Value mm 0 0 0 5 1 0 1 5 2 0 2 5 3 0 3 5 Enter appropriate system test number and press the START STOP key The Cue mark adjustment xxx mm
74. nd Paper Empty paper mark sensor and paper empty sensor Sensor 2 Usea piece of cotton moistened with alcohol to clean both sensors Paper mark sensor Paper empty sensor 2 2 Service Manual ECG 9010 9020 Rev A 2 MAINTENANCE Cleaning the Motor 1 Detach the top casing from the bottom casing as described in the Rotation Sensor and Disassembly and Assembly section Greasing the Motor Gear and Gear Meshed with 2 Remove the two screws holding the motor assy to the bottom casing and Motor Gear remove the motor assy 3 Remove the two screws to expose the motor rotation sensor and photodiode Motor assy 8 Motor rotation sensor photodiode Bottom casing 4 Use a piece of cotton moistened with alcohol to clean the sensor and photodiode 5 Usea brush to clean the holes in the gear Service Manual ECG 9010 9020 Rev A 2 3 2 MAINTENANCE 6 Use EM 50L NK code No 547712 grease to grease the motor gear and the gear which directly meshes with the motor gear as shown below Top view Motor gear Gear meshed with motor gear 7 Reattach the MOTOR SENS board to the motor with the two screws 8 Reattach the motor assy to the bottom casing with the two screws 9 Reattach the top casing to the bottom casing as described in the Disassembly and Assembly section 2 4 Service Manual ECG 9010 9020 Rev A Section 3 Troubleshooting and System Error Message Troub
75. o understand troubleshoot service maintain and repair the ECG 9010K ECG 9020K P and ECG 9022K Electrocardiograph referred to in this service manual as the instrument ECG 9010K or ECG 9020K which includes ECG 9020P and ECG 9022K All replaceable parts or units of this instrument and its optional units are clearly listed with exploded illustration to help you locate the parts quickly The System test Adjustment and Setting section in this service manual describes the maintenance that should be performed by qualified service personnel The Maintenance section in the operator s manual describes the maintenance that can be performed by the user The information in the operator s manual is primarily for the user However it is important for service personnel to thoroughly read the operator s manual and service manual before starting to troubleshoot service maintain or repair this instrument This is because service personnel needs to understand the operation of the instrument in order to effectively use the information in the service manual Service Manual ECG 9010 9020 Rev B 1 1 1 GENERAL Service Policy 1 2 Nihon Kohden Corporation s basic policy for technical service is to replace faulty units printed circuit boards or parts We do not support component level repair of boards and units outside the factory for the following reasons special facility is necessary to repair multi layer boards because mos
76. o quit the test press the AUTO MANUAL key and the instrument returns to the standby mode for entering the system test number Printout of Thermal Head Test Result H XXXXX H XXXXX H XXXXX H XXXXX H XXXXX H XXXXX H XXXXX H XXXXX H XXXXX H XXXXX H XXXXX H XXXXX H XXXXX H XXXXX H XXXXX H XXXXX H XXXXX H XXXXX H XXXXX H XXXXX H XXXXX H XXXXX H XXXXX H XXXXX H XXXXX H XXXXX H XXXXX H XXXXX H XXXXX H XXXXX H XXXXX H XXXXX H XXXXX H XXXXX H XXXXX H XXXXX H XXXXX H XXXXX H XXXXX H XXXXX H XXXXX H XXXXX H XXXXX H XXXXX H XXXXX H XXXXX H XXXXX H XXXXX H XXXXX H XXXXX H XXXXX H XXXXX H XXXXX H XXXXX H XXXXX H XXXXX H XXXXX H XXXXX H XXXXX H XXXXX H XXXXX H XXXXX H XXXXX H XXXXX H XXXXX Check Procedure for Characters H and X Check that all the parts of the characters H and X are clearly evenly and completely printed and that the characters are not printed zigzag or diagonally Possible Source of Problem Corrective Action Incorrectly set thermal head recording Adjust the thermal head recording resolution resolution setting as described in this section Faulty cable connection to the CNJO11 Check the cable connections to the CNJO11 connector on the ECG control board or connector on ECG control board and the CNO031 connector the power unit CNO031 connector on the power unit Faulty power unit Replace the power unit Badly positioned recorder component Check and adjust the recorder component position
77. ode is selected the memory is continuously tested until the AUTO MANUAL key is pressed The number of Count of test increases by one each time the entire memory test is tested One complete memory test takes about 30 seconds If no fault is detected an OK message appears for each memory If a fault is detected an Error message appears and the number of Error count for each memory increases by one Printout of Memory Test Result Memory test result Count of test 1 Error count Main memory BIT ADR OK 0 Recorder memory BIT ADR Error E88004 000000h 1 VRAM BIT ADR Error C10000h C10004h 1 Program ROM OK 0 Flash memory NONE 0 Input unit SRAM Error 1 Input unit ROM OK 0 Input unit EEPROM OK 0 File memory Error 1 Hospital NIHON KOHDEN HOSPITAL Model 9020K Version 01 01 Input unit version 01 01 Analizing version 01 01 Date Apr 24 1998 10 41 AM Cardiograph internal temp 46 5 C Elapsed time 0 hours Thermal head temperature 36 0 C Battery voltage 134 V Service Manual ECG 9010 9020 Rev A 4 13 4 SYSTEM TEST ADJUSTMENT AND SETTING Single Memory Test Mode This mode tests the entire memory once You can use this mode to fully check all memory if a memory problem frequently occurs Procedure Enter the system test number 03 Test level 1 or 04 Test level 2 and press the START STOP key After the test the test result is automatically printed When the test result is completely printed
78. om the CRO OUT terminal to the EXT IN connector At the same time the instrument prints the triangular waveform signals input to the EXT IN connector at the upper trace on the recording paper There is no delay time between the printed waveforms on the upper and lower traces The following is an example printout of the test result 250mm s CRO Preparation A locally made check jig is required for the test To make the check jig use the two 3 50 monaural jacks and leads and solder the signal line and ground line of the two jacks with leads as shown below Ground line Service Manual ECG 9010 9020 Rev A 4 21 4 SYSTEM TEST ADJUSTMENT AND SETTING Procedure 1 Connect the check jig to the CRO OUT EXT IN sockets of the instrument 2 Enter the system test number 08 Test level 1 or 10 Test level 2 and press the START STOP key To quit the test press the START STOP key or AUTO MANUAL key The instrument returns to the standby mode for entering the systme test number Check Procedure Check that the shape of the two printed triangular waveforms are the same and there is no delay time between them Possible Source of Problem Corrective Action Faulty ECG control board Replace the ECG control board 4 22 Service Manual ECG 9010 9020 Rev A 4 SYSTEM TEST ADJUSTMENT AND SETTING System Setup Initialization This is used to reset all the system settings to the factory initi
79. op Casing secion 2 Remove the LCD assy as described in the Removing the LCD Assy section This step is for the ECG 9020K only 3 Remove the inverter board as described in the Removing the Inverter Board section This step is for the ECG 9020K only 4 Remove the ECG control board as described in the Removing the ECG Control Board section 5 Remove the Motor assy as described in the Removing the Motor Assy section 6 Remove the battery cover plate This plate is attached to the bottom casing by the five hooks on the bottom casing 7 Remove the battery terminal assy cable from the cable hooks on the bottom casing 8 Remove the M3 flat screw and M3 nut Battery cover plate Battery terminal assy cable M3 flat screw Service Manual ECG 9010 9020 Rev A 6 15 6 DISASSEMBLY AND ASSEMBLY Removing the Magazine Assy Removal Put the tip of the small flat blade driver in the space between the E ring and magazine chassis then push the E ring in the direction of the smaller arrow shown below and pull off the magazine assy in the direction of the bigger arrow shown below Magazine shaft Replacement Put the plastic magazine shaft into the attachment hole and put the metal magazine shaft with the E ring and spring into the attachment hole while pressing and holding down the shaft in the direction of the smaller arrow above 6 16 Service Manual ECG 9010 9020 Rev A 6 DISASSEM
80. put Input data latch ouput Data input clock output Not connected Display control output L OFF Display data output 0 Display data output 1 Display data output 2 Display data output 3 5 V for logic circuit Ground for digital circuit 17 to 26 V for driving LCD Description Ground for digital circuit Ground for digital circuit 5 V for logic circuit Chip select 1 for ROM Address 000000 to 0FFFFF Chip select 2 for ROM Address 100000 to 1FFFFF Serial ROM clock output Serial ROM clock output Address bus Address bus Address bus Address bus Address bus Address bus Address bus Address bus Address bus Address bus Address bus Address bus Address bus Address bus Address bus Address bus Address bus Address bus Address bus 8 3 8 CONNECTOR PIN ASSIGNMENT Pin Signalname Direction Description 27 LA 19 Output Address bus 28 LD 08 Input Output Data bus 29 LD 09 Input Output Data bus 30 LD 10 Input Output Data bus 31 LD 11 Input Output Data bus 32 LD 12 Input Output Data bus 33 LD 13 Input Output Data bus 34 LD 14 Input Output Data bus 35 XRESET Output Reset output 36 XDSACK0 Output Output for system test 37 XDSACKI Output Output for system test 38 Output Read output 39 XWE Output Write output 40 XBERR Output Output for system test 41 LA 22 Output Address bus 42 LA 21 Output Address bus 43 SROMD Input Serial ROM data 44 LA 20 O
81. r display LED output LED display output LED display output LED display output LED display output LED display output LED display output LED display output LED display output LED display output LED display output LED display output LED display output LED display output at power on LED display output LED display output for AC power Ground for digital circuit Charging display LED cathode output Charging display LED anode output Power switch Ground for digital circuit Keyboatd input Keyboard input Keyboard input Keyboard scan input Keyboard scan input Keyboard scan input Keyboard scan input Not connected Not connected Not connected Not connected Not connected Service Manual ECG 9010 9020 Rev A CNJ035 to Power Unit Model TX24 30P 12S T H1 Pin No Signalname Direction 1 DGND 2 DGND 3 DGND 4 DGND 5 DGND 6 DGND 7 DGND 8 DGND 9 DGND 10 DGND 11 DGND 12 DGND 13 DGND 14 DGND 15 DGND 16 PWOVER Input 17 POFF Output 18 HDOVER Input 19 DCXAC Input 20 OFFKEY Input 21 CHGLEDA Input 22 CHGLEDK Input 23 ACLED Input 24 PSW Output 25 5 V 26 5 27 5 28 12 V 29 12 V 30 AGNDSND Service Manual ECG 9010 9020 Rev A 8 CONNECTOR PIN ASSIGNMENT Description Ground for logic circuit Ground for logic circuit Ground for logic circuit Ground for logic circuit Ground for logic circuit Ground for logic circuit Ground for logic circuit Ground for logic circ
82. r unit and pull out the thermistor from under the rechargeable battery 12 After pulling out the thermistor lift off the power unit from the bottom casing Thermistor Thermistor seal Service Manual ECG 9010 9020 Rev A 6 13 6 DISASSEMBLY AND ASSEMBLY Replacing the Thermistor and Thermistor Cable 6 14 CAUTION Observe the following when replacing the thermistor The thermistor wire must go under the thermistor seal as shown below Positioning the thermistor wire over the thermistor seal results in incorrect temperature measurement or a damaged thermistor To prevent incorrect temperature measurement the thermistor must be positioned so that only the tip is just past the edge of the thermistor seal as shown below 1 Replace the thermistor so that is in the correct position as shown below CAUTION The thermistor cable must be attached to the side of the battery compartment with the ferrite tape so that the thermistor cable is not put on the battery cover plate This will cause the thermistor cable to be damaged 2 Attach the thermistor cable to the side of the battery compartment with the ferrite tape as shown previously lt Side view gt Battery Thermistor seal compartment Thermistor wire Thermistor tip Service Manual ECG 9010 9020 Rev A 6 DISASSEMBLY AND ASSEMBLY Removing the Battery Terminal Assy 1 Remove the top casing as described in the Removing the T
83. re the same Use the correct fuse only The fuse rating is shown on the fuse holder 1 Remove the top casing as described in the Removing the Top Casing section 2 Remove the LCD assy as described in the Removing the LCD Assy section This step is for the ECG 9020K only 3 Remove the inverter board as described in the Removing the Inverter Board section This step is for the ECG 9020K only 4 Remove the ECG control board as described in the Removing the ECG Control Board section 5 Remove the power unit as described in the Removing the Power Unit section 6 Remove the blown fuse from the fuse bracket with the small flat blade screwdriver Symbol NK Code No Description 1 323241 218008 8A 2 322893 218002 2A 6 18 Service Manual ECG 9010 9020 Rev A 6 DISASSEMBLY AND ASSEMBLY Replacing the Lithium Battery on the ECG Control Board The lithium battery is used for backing up the system setup setting NOTE Replace the lithium battery when the No 08 or 09 system error message appears or after the lithium battery is used for approx 7 years 1 Remove the top casing as described in the Removing the Top Casing section 2 Remove the LCD assy as described in the Removing the LCD Assy section This step is for the ECG 9020K only 3 Remove the LCD inverter board as described in the Removing the LCD Inverter Board section This step is for the ECG 9020K only 4 Remove
84. rint out the list of all ECG findings used for the instrument The instrument informs you of the ECG finding as a result of the ECG interpretation when analyzing the ECG Procedure Enter the system test number 11 Test level 1 and press the START STOP key When the list is completely printed one bing bong alarm sound is generated and the instrument returns to the standby mode for entering the system test number To cancel printing the list press the START STOP key or AUTO MANUAL key The instrument returns to the standby mode for entering the system test number 4 24 Service Manual ECG 9010 9020 Rev A 4 SYSTEM TEST ADJUSTMENT AND SETTING Recording Resolution Setting This is used to adjust the thermal head recording resolution after the thermal head is replaced with a new one or when the printout is not clearly evenly and completely printed Normally the resistor value of the heating element on the thermal head is a specific value which varies from thermal head to thermal head Even if the same energy is applied to the thermal head the recording quality varies due to the difference of the thermal head resistor value Therefore adjusting the thermal head recording resolution is required to evenly print regardless of the thermal head resistor value Do the following procedure to automatically adjust the thermal head recording resolution Procedure Enter the system test number 02 Test level 2 and press the
85. rter board connector Inverter board GY lt ECG control board Service Manual ECG 9010 9020 Rev A 6 DISASSEMBLY AND ASSEMBLY Removing the ECG Control Board CAUTION Local language text is stored in the flash memory on the ECG control board When the ECG control board is replaced local language text is not available only English text is available To use the ECG with your own language after the ECG control board is replaced you must reload the local language files to the ECG Refer to the YZ 012H6 Translator Support Tool operator s manual 1 Remove the top casing as described in the Removing the Top Casing section 2 Remove the LCD assy as described in the Removing the LCD Assy section This step is for the ECG 9020K only 3 Remove the inverter board as described in the Removing the Inverter Board section This step is for the ECG 9020K only 4 Remove the three M3 pan head screws with spring washers 5 Remove the two spacer bolts 1 6 Disconnect the thermal array assy connector from the ECG control board 7 Lift off the ECG control board from the power board The CNJ035 connector on the ECG control board is directly connected to its socket on the power board Spacer bolt 1 Thermal array assy connector ECG control board Service Manual ECG 9010 9020 Rev A 6 11 6 DISASSEMBLY AND ASSEMBLY Removing the Power Unit 6 12 Remove the top casing
86. stem Test 4 SYSTEM TEST ADJUSTMENT AND SETTING Press the START STOP key For some tests the System Test screen is displayed during the test as shown below ECG 9020K only System Test Screen ECG 9020K Key test Test number 3 If you entered an unspecified number an alarm occurs The alarm indication is different between the ECG 9010K and ECG 9020K as follows e ECG 9010K 8 repeating pips alarm sound is generated e ECG 9020K 8 repeating pips alarm sound and the Invalid number Please re enter number error message is displayed as shown below Enter test number Press Start Stop key to start test Test number Invalid number Please re enter number To re enter the system test number do either of the folowing Delete the previously entered number by pressing the AUTO MANUAL key Enter the system test number by overwriting the previously entered number Service Manual ECG 9010 9020 Rev A 4 5 4 SYSTEM TEST ADJUSTMENT AND SETTING Quitting the System Test The procedures to quit each system test vary from test to test Some tests automatically end after an alarm sound is generated or a printout is output Refer to the following explanations for each test After quitting each test the instrument returns to the standby mode for entering the system test number After a system test is completed you can execute other system test without exiting the System Test mode Exiting the Syst
87. t 34 LD 14 Input Output 35 XRESET Output 36 XDSACK0 Output 37 XDSACKI Output 38 Output Description Ground for digital circuit Ground for digital circuit 5 V for logic circuit Chip select 1 for ROM Address 000000 to 0FFFFF Chip select 2 for ROM Address 100000 to 1FFFFF Serial ROM clock output Serial ROM clock output Address bus Address bus Address bus Address bus Address bus Address bus Address bus Address bus Address bus Address bus Address bus Address bus Address bus Address bus Address bus Address bus Address bus Address bus Address bus Address bus Data bus Data bus Data bus Data bus Data bus Data bus Data bus Reset Output for system test Output for system test Read output Service Manual ECG 9010 9020 Rev A 8 CONNECTOR PIN ASSIGNMENT PinNo Signalname Direction Description 38 XOE Output Read output 39 XWE Output Write output 40 XBERR Output Output for system test 41 LA 22 Output Address bus 42 LA 21 Output Address bus 43 SROMD Input Serial ROM data 44 LA 20 Output Address bus 45 LA 23 Output Address bus 46 FC 0 Out put Output for system test 47 FC 1 Out put Output for system test 48 FC 2 Out put Output for system test 49 LA 26 Output Address bus 50 LA 25 Output Address bus 51 LA 24 Output Address bus 52 SIZO Output Output for system test 53 5171 Output Output for system test 54 XAS Output Output for system test 55 RXW Output Output
88. t of the components on the board are SMD surface mount devices and most of the circuits employ a gate array method To fulfill safety certification requirements a special facility is necessary to verify safety as medical equipment after the power unit is repaired NOTE When ordering parts or accessories from your nearest Nihon Kohden Corporation s distributor please quote the NK code number and part name which is listed in this service manual and the name or model of the unit in which the required part is located This will help us to promptly attend to your needs Always use parts and accessories recommended or supplied by Nihon Kohden Corporation to assure maximum performance from your instrument Service Manual ECG 9010 9020 Rev B 1 GENERAL Specifications ECG input Input impedance Electrode offset tolerance Input unit protection Standard sensitivity Common mode rejection ratio Frequency response Waveform data processor Sample rate AC line filter High cut filter EMG filter Time constant Waveform status detection Sensitivity selection Size Number of dots ECG waveform Displayed data Recorder Printing method Printing density Scanning line density Recording width Number of recording channels Paper speed Printed data Mechanical noise External input output External input Signal output Serial Service Manual ECG 9010 9020 Rev B 10 or more 500 mV or more Isol
89. t request Interface Recorder LCD Controller A D converter 5 2 MC68ECO020 Operating frequency 25 MHz For system software 2 MB Main memory 1 MB For font of local language 1 MB For filing data 256 KB For monitoring back up battery built in 140 B SRAM ms timer Interrupt request signal ON OFF selectable Operation mode fixed Equivelent to RS 232C 1 channel Baud rate 2 400 to 115 200 bps selectable Beep sound Sound by noise generator Auto vector method To ECG input section For keyboard Service Manual ECG 9010 9020 Rev A 5 BOARD UNIT DESCRIPTION Flash ROM Board The Flash ROM board has a 2 MB flash ROM for writing the control program analysis program Japanese font and English font to the ROM Also there is a space for mounting an EEPROM Inverter Board The inverter board produces the power for the LCD backlight module using 12 VDC power from the power unit and turns on off the power of the instrument according to the signal from the ECG control board Service Manual ECG 9010 9020 Rev A 5 3 Section 6 Disassembly Assembly Before You Begin Board and Unit Location Removing the Thermal Head Assy Removing the Speaker Assy Removing the Inverter Board Removing the ECG Control Board Replacing the Thermistor and Termistor Cable Removing the Battery Terminal Assy Removing the Magazine Assy Removing the Bottom Casing Service Man
90. te mah etes 5 2 Flash ROM 5 3 Inverter BOaId u uma kuyu suhu utet assibus Beer du be RETE 5 3 Service Manual ECG 9010 9020 Rev A 5C 1 5 BOARD UNIT DESCRIPTION Block Diagram AC source NOTE The LCD module and inverter board are used for the ECG 9020K only CNJ032 2 Piezo electric CNAO11 buzzer Motor Motor sensor CNA012 I Mark sensor Membrane key d CNJO33 40pin CNJ021 80pin LCD module CNJ012 12pin CNJ031 D SUB 5 pin Inverter board Thermal head li SN OS CN31 16pin Flash ROM Board UT 2357 CNJ036 12 CNJ011 80pin SIO ECG Control Board T 23561 E U s CNJ043 mini jack Al EXT IN CNJ041 mini jack li CRO H CNJO1 1 12pin 11 3pin N021 Power Unit SC 903D 30pin 30pin CNJ091 D SUB15pin Patient Input CN51 4pin Battery CNA014 Service Manual ECG 9010 9020 Rev A 5 1 5 BOARD UNIT DESCRIPTION Power Unit The Power unit consists of the power source battery charging and control circuits The Power unit uses the switching regulation method to produce the power required for the instrument ECG Control Board The ECG Control board consists of the following components Component Description CPU ROM DRAM Flash memory Real time clock Timer Serial interface Speaker circuit Interrup
91. the START STOP key is pressed in the second setting mode the second is reset to 00 seconds and the instrument starts working from 00 seconds If the power of the instrument is turned off before the START STOP key is pressed the newly entered numbers are invalid 4 Press the START STOP key to save the new numbers The newly entered numbers are automatically printed Following is the LCD screen when year 1998 is saved Input setting number Enter setting number and press Start Stop key If you entered an unspecified number an alarm occurs The alarm indication is different between the ECG 9010K and 9020 as follows e ECG 9010K 8 repeating pips alarm sound is generated e 9020 8 repeating pips alarm sound and the Invalid number Please re enter number error message is displayed To re enter the system test number do either of the folowing Delete the previously entered number by pressing the AUTO MANUAL key Enter the system test number by overwriting the previously entered number 5 Repeat steps 2 to 4 to enter the new numbers for the other setting 6 Turn the power of the instrument off to exit the System Setup mode 4 30 Service Manual ECG 9010 9020 Rev A Section 5 Board Unit Description Boek DAOA aS u u Saa 5 1 nit tae aseo totes ee a a dois iip cR REY 5 2 Control Board erae eth t uman h Dre et i
92. ual ECG 9010 9020 Rev A Warnings and Cautions Required Tools necs oci denen dae Cable Connection eene nennen nennt nens Removing the Top 1 nennen nnne Removing the LCD Removing the Motor Removing the Power Unit u Replacing the Fuse on the Power Replacing the Lithium Battery on the ECG Control Board 6C 1 6 DISASSEMBLY AND ASSEMBLY The procedures in this section tell how to remove replace and install major components in the instrument Before You Begin Removing replacing and installing major components should be done by qualified service personnel Warnings and Cautions WARNINGS To avoid the possibility of injury to yourself or damage to the instrument do not install or remove any component or change switch settings while the power is on and wait 10 minutes before installing to or removing any component from the instrument after the power is off To avoid accidental discharge of static electricity which could damage the instrument components use a wrist ground strap when installing or removing any component of the instrument CAUTIONS Before connecting or disconnecting any cables turn off the instrum
93. uit Ground for logic circuit Ground for logic circuit Ground for logic circuit Ground for logic circuit Ground for logic circuit Ground for logic circuit Ground for logic circuit Power overheat input Power off output Thermal head power over current input Battery operation status input Power off request input Charging display LED input Charging display LED inut AC power display LED input Power ON OFF switch 5 V for logic circuit 5 V for logic circuit 5 V for logic circuit 12 V for analog circuit 12 V for analog circuit Ground for sound circuit 8 7 8 CONNECTOR PIN ASSIGNMENT CNJ036 to Motor Model B12B ZR Pin No Signalname Direction 1 5 2 Input 3 PAMARK Input 4 DGND 5 M Output 6 5 VR301 Output 7 5 V 8 DGND 9 5 VR499 10 MOTRET 11 MOTPP 12 MOTPM CNJ041 to CRO Connector Model SG8036 Pin No Signalname Direction 1 CRO 2 AGND CNJ043 to EXT INPUT Connector Model SG8036 Pin Signalname Direction 1 EXT IN 2 AGND 8 8 Description 5 V for paper empty mark sensor Paper empty snsor input Mark sensor input Ground for paper empty mark sensor Paper empty sensor LED output Mark sensor LED output Ground for digital circuit LED signal for sensor which detects number of motor rotation Detection input of number of motor rotation Motor power Motor power Description External signal output 0 5 V 10 mm Ground for analog circuit Descript
94. utput Address bus 45 LA 23 Output Address bus 46 FC 0 Out put Output for system test 47 FC 1 Out put Output for system test 48 FC 2 Out put Output for system test 49 LA 26 Output Address bus 50 LA 25 Output Address bus 51 LA 24 Output Address bus 52 SIZO Output Output for system test 53 SIZ1 Output Output for system test 54 XAS Output Output for system test 55 RXW Output Output for system test 56 LD 07 Input Output Data bus 57 LD 06 Input Output Data bus 58 LD 05 Input Output Data bus 59 LD 04 Input Output Data bus 60 LD 03 Input Output Data bus 61 LD 02 Input Output Data bus 62 LD 01 Input Output Data bus 63 LD 00 Input Output Data bus 64 LD 23 Input Output Data bus 65 LD 22 Input Output Data bus 66 LD 21 Input Output Data bus 67 LD 20 Input Output Data bus 68 LD 19 Input Output Data bus 69 LD 18 Input Output Data bus 70 LD 17 Input Output Data bus 71 LD 16 Input Output Data bus 72 LD 27 Input Output Data bus 73 LD 28 Input Output Data bus 74 LD 29 Input Output Data bus 8 4 Service Manual ECG 9010 9020 Rev A Pin No Signalname Direction 75 LD 30 Input Output 76 LD 31 Input Output 77 LD 15 Input Output 78 5 V 79 DGND 80 DGND CNJ031 to SIO Connector Model JEY 9S 1A28 Pin No Signalname Direction 1 FG 2 TXD Output 3 RXD Input 4 RTS Output 5 CTS Input 6 DSR Input 7 GND 8 HS Input 9 DTR Output CNJ032 to Key Connector

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