ECG- 9010K
ECG- 9020K
SERVICE MANUAL
cardiofax GEM
ELECTROCARDIOGRAPH
ECG-9010K
ECG-9020K
0634-001307A
CONTENTS
Contents
Conventions Used in this Manual and Instrument....................................................................i
Warnings, Cautions and Notes ......................................................................................i
Explanations of the Symbols in this Manual and Instrument .........................................i
Section 1 General ...................................................................................1C.1
Introduction ......................................................................................................................... 1.1
Service Policy ..................................................................................................................... 1.2
Specifications...................................................................................................................... 1.3
Panel Description................................................................................................................ 1.5
ECG-9010K Electrocardiograph ............................................................................... 1.5
Top Vie w ......................................................................................................... 1.5
Operation Panel.............................................................................................. 1.6
Right Side Panel ............................................................................................. 1.7
ECG-9020K Electrocardiograph ............................................................................... 1.8
Top Vie w ......................................................................................................... 1.8
Operation Panel.............................................................................................. 1.9
Right Side Panel ........................................................................................... 1.10
Composition...................................................................................................................... 1.11
ECG-9010K Electrocardiograph ............................................................................. 1.11
ECG-9020K Electrocardiograph ............................................................................. 1.12
Location ............................................................................................................................ 1.13
Block Diagram...................................................................................................................1.14
Connection Diagram ......................................................................................................... 1.15
Section 2 Maintenance ...........................................................................2C.1
Replacement....................................................................................................................... 2.1
Periodic Replacement Schedule............................................................................... 2.1
Cleaning.............................................................................................................................. 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 Gear.................................. 2.3
Section 3 Troubleshooting and System Error Message ......................3C.1
Troubleshooting Flowchart .................................................................................................. 3.1
T roubleshooting Table.......................................................................................................... 3.4
Troubleshooting General Operation Prob lem............................................................ 3.4
Troubleshooting Recording Problem......................................................................... 3.6
System Error Message ....................................................................................................... 3.7
Service Manual ECG-9010/9020 Rev A C.1
CONTENTS
Section 4 System Test, Adjustment and Setting ..................................4C.1
System T est ........................................................................................................................ 4.1
Overall ...................................................................................................................... 4.1
Calling up the Test Level 1 ........................................................................................ 4.2
Calling up the Test Level 2 ........................................................................................ 4.3
Entering the System Test Number ............................................................................ 4.4
Executing the System Test ........................................................................................ 4.5
Quitting the System Test ........................................................................................... 4.6
Exiting the System Test Mode ................................................................................... 4.6
Demonstration .................................................................................................................... 4.7
Recorder ............................................................................................................................. 4.8
Thermal Head ................................................................................................................... 4.11
Key.................................................................................................................................... 4.12
Memory............................................................................................................................. 4.13
Single Memory Test Mode ...................................................................................... 4.14
Continuous Memory Test Mode .............................................................................. 4.14
LCD/LED........................................................................................................................... 4.15
Input Unit .......................................................................................................................... 4.17
Calibration......................................................................................................................... 4.18
Communication................................................................................................................. 4.19
CRO/EXT1........................................................................................................................4.21
System Setup Initialization................................................................................................ 4.23
ECG Findings List Recording............................................................................................ 4.24
Recording Resolution Setting ........................................................................................... 4.25
Cue Mark Adjustment ....................................................................................................... 4.26
Date and Time Setting ...................................................................................................... 4.28
Setting the Date and Time ............................................................................ 4.28
Section 5 Board/Unit Description..........................................................5C.1
Block Diagram..................................................................................................................... 5.1
Pow er Unit........................................................................................................................... 5.2
ECG Control Board ............................................................................................................. 5.2
Flash ROM Board ............................................................................................................... 5.3
Inverter Board ..................................................................................................................... 5.3
Section 6 Disassembly and Assembly..................................................6C.1
Before Y ou Begin ................................................................................................................. 6.1
Warnings and Cautions ............................................................................................ 6.1
Required T ools.......................................................................................................... 6.1
Board and Unit Location ........................................................................................... 6.2
Cable Connection ..................................................................................................... 6.3
Removing the Top Casing ................................................................................................... 6.4
Removing the LCD Assy..................................................................................................... 6.5
Removing the Thermal Head Assy ..................................................................................... 6.6
Removing the Motor Assy................................................................................................... 6.8
Removing the Speaker Assy............................................................................................... 6.9
C.2 Service Manual ECG-9010/9020 Rev A
CONTENTS
Removing the Inverter Board ............................................................................................ 6.10
Removing the ECG Control Board.................................................................................... 6.11
Removing the Po w er Unit.................................................................................................. 6.12
Replacing the Thermistor and Termistor Cable....................................................... 6.14
Removing the Battery Terminal Assy ................................................................................ 6.15
Removing the Magazine Assy .......................................................................................... 6.16
Removing the Bottom Casing ........................................................................................... 6.17
Replacing the Fuse on the Po wer Board........................................................................... 6.18
Replacing the Lithium Battery on the ECG Control Board ................................................ 6.19
Section 7 Replaceable Parts List...........................................................7C.1
General Parts List ............................................................................................................... 7.2
Top Casing Assy ................................................................................................................. 7.4
Top Casing Assy, RK-0007 for ECG-9010K.............................................................. 7.4
Top Casing Assy, RK-0009 for ECG-9020K.............................................................. 7.5
Thermal Head Assy , YZ-011H8........................................................................................... 7.6
Motor Assy, GC-0011.......................................................................................................... 7.7
Speaker Assy, RK-0005...................................................................................................... 7.8
Magazine Assy, RH-0001 ................................................................................................... 7.9
Battery T erminal Assy, RK-0006 ....................................................................................... 7.10
LCD Assy, VL-0001........................................................................................................... 7.11
Cart and Fixing Plate ........................................................................................................ 7.12
Patient Cab le Hanger........................................................................................................ 7.14
Section 8 Connector Pin Assignment ...................................................8C.1
Pow er Unit........................................................................................................................... 8.1
CN11 (to AC Inlet) .................................................................................................... 8.1
CN21 (to ECG control board) ................................................................................... 8.1
CN31 (to Thermal Head) .......................................................................................... 8.1
CN51 (to Battery)...................................................................................................... 8.1
ECG Control Board ............................................................................................................. 8.2
CNJ011 (to Thermal Head)....................................................................................... 8.2
CNJ012 (to Inverter Board)....................................................................................... 8.2
CNJ013 (to LCD) ...................................................................................................... 8.3
CNJ021 (to Flash ROM Board)................................................................................. 8.3
CNJ031 (to SIO Connector)...................................................................................... 8.5
CNJ032 (to Key Connector)...................................................................................... 8.5
CNJ033 (to Speaker) ................................................................................................ 8.6
CNJ035 (to Po wer Unit)............................................................................................ 8.7
CNJ036 (to Motor) .................................................................................................... 8.8
CNJ041 (to CRO Connector).................................................................................... 8.8
CNJ043 (to EXT INPUT Connector) ......................................................................... 8.8
CNJ091 (to ECG Connector) .................................................................................... 8.9
Flash ROM Board ............................................................................................................. 8.10
CNJ021 (to ECG Control Board) ............................................................................ 8.10
Service Manual ECG-9010/9020 Rev A C.3
CONTENTS
Inverter Board ................................................................................................................... 8.12
CN1 (to ECG Control Borad) .................................................................................. 8.12
CN2 (to LCD module) ............................................................................................. 8.12
External Input/Output Socket ............................................................................................ 8.13
SIO Socket.............................................................................................................. 8.13
EXT Input and CRO Output .................................................................................... 8.13
C.4 Service Manual ECG-9010/9020 Rev A
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 inf ormation, 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 bear the respective descriptions as given.
Cardiograph
Attention, consult
operator’s manual
Equipotential terminal
Serial input/output terminal
Input terminal for analog
signal
Output terminal for analog
signal
Eject (magazine release
button)
Type CF applied part
The CE mark is a protected
conformity mark of
European Community.
The products herewith
comply with the
requirements of the
Medical Device Directive
93/42/EEC.
Service Manual ECG-9010/9020 Rev A i
Operation panel (for ECG-9010K onlly)
Alternating current
“On” only for a part of
equipment
“Off” only for a part of
equipment
Battery charging (lamp/on
screen)
Battery check (lamp/on
screen)
QRS sync lamp
Age
REST/PERIODIC
recording
Paper speed
Gain
Paper feed
Mark
Filter
Copy
Calibration
START/STOP recording
Automatic control
Manual control
Operation panel (for ECG-9020K only)
Alternating current
“On” only for a part of
equipment
“Off” only for a part of
equipment
Battery charging (lamp/on
screen)
Battery check (lamp/on
screen)
Age
Sex
Mode
Rhythm
Paper feed
Filter
Copy
Calibration
START/ST OP recording
Automatic control
Mark
ii Service Manual ECG-9010/9020 Rev A
Manual control
Display (for ECG-9020K only)
QRS sync lamp
Patient cable
Attention, consult
operator’s manual
Defibrillation-proof
Type CF applied part
Service Manual ECG-9010/9020 Rev A iii
Section 1 General
Introduction ........................................................................................................................ 1.1
Service Policy .................................................................................................................... 1.2
Specifications..................................................................................................................... 1.3
Panel Description............................................................................................................... 1.5
ECG-9010K Electrocardiograph .............................................................................. 1.5
T op Vie w ........................................................................................................ 1.5
Operation Panel............................................................................................. 1.6
Right Side Panel ............................................................................................ 1.7
ECG-9020K Electrocardiograph .............................................................................. 1.8
T op Vie w ........................................................................................................ 1.8
Operation Panel............................................................................................. 1.9
Right Side Panel .......................................................................................... 1.10
Composition.....................................................................................................................1.11
ECG-9010K Electrocardiograph ............................................................................ 1.11
ECG-9020K Electrocardiograph ............................................................................ 1.12
Location ........................................................................................................................... 1.13
Block Diagram.................................................................................................................. 1.14
Connection Diagram ........................................................................................................ 1.15
Service Manual ECG-9010/9020 Rev A 1C.1
Introduction
1. GENERAL
This service manual provides useful information to qualified service personnel to
understand, troubleshoot, service, maintain and repair the ECG-9010K/9020K
Electrocardiograph (referred to as “the instrument” in this service manual).
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 A 1.1
1. GENERAL
Service Policy
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:
• A special facility is necessary to repair multi-layer boards because most 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.
1.2 Service Manual ECG-9010/9020 Rev A
Specifications
ECG input
Input impedance 10 MΩ or more
Electrode offset tolerance ±500 mV or more
Input unit protection Isolated and defibrillator protected
Standard sensitivity 10 mm /mV ±2%
Common mode rejection ratio 100 dB or more
Frequency response 0.05 to 150 Hz (– 3 dB or more)
Waveform data pr ocessor
Sample rate 500 samples/s (input unit: 8,000 samples/s)
AC line filter 50/60 Hz, OFF
High-cut filter 75, 100, 150 Hz
EMG filter 25/35 Hz
Time constant 3.2 s or more
Waveform status detection Electrode detachment (polarization voltage),
Sensitivity selection 5, 10 , 20 mm/mV
1. GENERAL
Noise (high frequency)
LCD (monochrome with CCFT backlight) (for ECG-9020K only)
Size 5.6 inch
Number of dots 320 × 240
ECG waveform 3 channel:Real time 12 ECG lead complexes
6 channel: 2.5 s
Rhythm lead: 10 s
Displayed data Waveform, patient information, recording settings,
operation mode, heart rate, QRS sync mark, error message,
electrode detachment, noise
Recorder
Printing method High resolution thermal printer head
Printing density 200 dpi (8 dots/mm)
Scanning line density 1 ms
Recording width 104 mm
Number of recording channels 2, 3, 4, 6
Paper speed 10, 12.5, 25, 50 mm/s
(10 and 12.5 mm/s available for ECG-9020K only)
Printed data Program type, version, date and time, paper speed, sensitivity,
lead name, filter, hospital name, patient information,
timing mark, event mark, electrode detachment, noise
Mechanical noise 48 dB or less at paper speed 25 mm/s
External input/output
External input 10 mm/0.5 V ±5%, input impedance 100 kΩ or more
Signal output 0.5 V/1 mV ±5%, output impedance 100 Ω or less
Serial I/O Communication method: RS-232C
Baud rate: 2400, 4800, 9600, 19200, 38400,
57600, 115200
Service Manual ECG-9010/9020 Rev A 1.3
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 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°C
(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 90% RH
Electromagnetic compatibility Class B
Other Indoor portable
Dimensions and weight
Dimensions 280 W × 52 H × 216 D mm (excluding protrusions)
Weight ECG-9010K: approx. 2.5 kg (with battery), approx. 1.9 kg (without battery)
ECG-9020K: approx. 2.9 kg (with battery), approx. 2.1 kg (without battery)
Safety
Safety standard:
IEC601-1 Amendment 1,2
IEC601-2-25
Type of protection against electric shock:
AC po wer: 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:
Continuous
1.4 Service Manual ECG-9010/9020 Rev A
Panel Description
1. GENERAL
ECG-9010K Electrocardiograph
T op View
3
2
1
Name
1. Operation panel
2. Magazine (recording paper container)
3. Magazine release button
Service Manual ECG-9010/9020 Rev A 1.5
1. GENERAL
Operation Panel
14
18
4
5
6
7
15
16
17
9
8
10
11
13
12
Name
4. Battery charge lamp
5. Battery operation lamp
6. AC power lamp
7. POWER key/lamp
8. FEED/MARK key
9. FILTER key/lamp
10. COPY/CAL key/lamp
11. STA RT/STOP key/lamp
12. AUTO/MANUAL key/lamp
13. REST/PERIODIC key/lamp
14. AGE key/lamp
15. SPEED key/lamp
16. GAIN key/lamp
17. LEAD keys/lamp
18. QRS sync lamp
1.6 Service Manual ECG-9010/9020 Rev A
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-9010K Operator’s Manual.
19
20
24
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
21
25
22
23
Service Manual ECG-9010/9020 Rev A 1.7
1. GENERAL
ECG-9020K Electrocardiograph
T op View
3
2
4
1
Name
1. Operation panel
2. Magazine (recording paper container)
3. Magazine release button
4. LCD screen
1.8 Service Manual ECG-9010/9020 Rev A
Operation Panel
1. GENERAL
16
5
6
7
8
9
Name
5. Battery charge lamp
6. Battery operation lamp
7. AC power lamp
8. POWER key/lamp
9. MODE key
10 RHYTHM key/lamp
11. FEED/MARK key
12. FILTER key/lamp
13. COPY/CAL key/lamp
14. STA RT/STOP key/lamp
15. AUTO/MANUAL key/lamp
16. F1, F2, F3 function keys
17. AGE key
18. SEX key
10
11
12
17
13
18
14
15
Service Manual ECG-9010/9020 Rev A 1.9
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-9020K Operator’s Manual.
19
20
24
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
21
25
22
23
1.10 Service Manual ECG-9010/9020 Rev A
Composition
ECG-9010K
Electrocardiograph
1. GENERAL
ECG-9010K
(Optional)
RK-0002 Bottom Casing Assy
RK-0003 Internal Parts
GC-0011 Motor Assy
RH-0001 Magazine Assy
RK-0004 Thermal Head Assy
RK-0005 Speaker Assy
RK-0006 Battery Terminal Assy
RK-0007 ECG-9010K Top Casing Assy
SC-903D Power Unit
UT-23561 ECG Control Board
UT-2357 Flash ROM Board
KD-103E Cart
KH-801E Patient 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”.
Service Manual ECG-9010/9020 Rev A 1.11
1. GENERAL
ECG-9020K Electrocardiograph
ECG-9020K
RK-0002 Bottom Casing Assy
RK-0003 Internal Parts
GC-0011 Motor Assy
RH-0001 Magazine Assy
RK-0004 Thermal Head Assy
RK-0005 Speaker Assy
RK-0006 Battery Terminal Assy
RK-0009 ECG-9020K Top Casing Assy
SC-903D Power Unit
UT-23561 ECG Control Board
UT-2357 Flash ROM Board
(Optional)
VL-0001 LCD Assy
KD-103E Cart
KH-801E Patient 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
••
Replaceable Parts List”.
1.12 Service Manual ECG-9010/9020 Rev A
Location
1. GENERAL
Motor Assy
Speaker Assy
ECG Control Board
Thermal Head Assy
LCD Assy (for ECG-9020K only)
Flash ROM Board
Inverter Board
(for ECG-9020K
only)
Pow er Unit
Service Manual ECG-9010/9020 Rev A 1.13
1. GENERAL
Block Diagram
NOTE
The LCD module and inverter board are used for the ECG-9020K only.
AC
source
Piezo-electric
buzzer
Motor, Motor sensor,
Mark sensor
Membrane key
LCD module
2 pin
5 pin
Inverter board
Thermal head
CN11 (3pin)
Po wer Unit (SC-903D)
CNA011
CNA012
CNA015
CNA013
CN31 (16pin)
CNJ032 (2pin)
CNJ036 (12pin)
CNJ033 (40pin)
CNJ012 (12pin)
CNJ013 (6pin)
CNJ011 (12pin)
CN021
(30pin)
CN51 (4pin)
Flash ROM Board
ECG Control Board
(UT-23561)
CNJ035 (30pin)
(UT-2357)
CNJ011 (80pin)
CNJ021 (80pin)
CNJ031 (D-SUB 9pin)
CNJ043 (mini jack)
CNJ041 (mini jack)
CNJ091 (D-SUB15pin)
SIO
EXT-IN
CRO
Patient Input
Battery
CNA014
1.14 Service Manual ECG-9010/9020 Rev A
Connection Diagram
Index Connector No. NK Code No. Description
1* CNA011 543993A ZHR-2 speaker cable (L50)
2 CNA012 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 CNA015 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.
1. GENERAL
¬ CNA011
® CNA013
- CNA012
° CNA015
¯ CNA014
Service Manual ECG-9010/9020 Rev A 1.15
Section 2 Maintenance
Replacement...................................................................................................................... 2.1
Periodic Replacement Schedule.............................................................................. 2.1
Cleaning............................................................................................................................. 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 Gear................................. 2.3
Service Manual ECG-9010/9020 Rev A 2C.1
Replacement
2. MAINTENANCE
This section describes the periodic replacement and cleaning of parts which are
required to maintain the instrument in good working condition.
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 Schedule
To maintain the performance of the instrument, the parts listed in the table below
must be periodically replaced by qualified service personnel.
Part NK Code No. Description Recommendation
LCT-1912ANK 332543B Battery * See below.
KPT-104-8MGF1-NKC 541816 Thermal head After 30 km of
recording
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 Schedules
Cleaning the Paper Mark Sensor and Paper Empty Sensor
To maintain the performance of the instrument, the parts listed in the table below
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
1. Remove the magazine. The illustration below shows the location of the
paper mark sensor and paper empty sensor.
2. Use a 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 Rotation Sensor and Greasing the Motor Gear and Gear Meshed with Motor Gear
1. Detach the top casing from the bottom casing as described in the
“Disassembly and Assembly” section.
2. Remove the two screws holding the motor assy to the bottom casing and
remove the motor assy.
3. Remove the two screws to expose the motor rotation sensor and
photodiode.
Motor assy
Motor rotation sensor and
photodiode
Motor SENS board
Bottom casing
4. Use a piece of cotton moistened with alcohol to clean the sensor and
photodiode.
5. Use a 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.
Motor
2.4 Service Manual ECG-9010/9020 Rev A
Section 3 T roubleshooting and
System Error Message
Troubleshooting Flowchart ................................................................................................. 3.1
T roub leshooting T a ble......................................................................................................... 3.4
Troubleshooting General Operation Prob lem........................................................... 3.4
Troubleshooting Recording Prob lem........................................................................ 3.6
System Error Message ...................................................................................................... 3.7
Service Manual ECG-9010/9020 Rev A 3C.1
This section describes how to troubleshoot the instrument, using the following:
Is there any response when
any switch is pressed?
Check the cable connection
to the CNJ012 connector
on the ECG control board.
The ECG control board
is faulty.
The ECG control board is faulty.
The Inverter board is faulty.
The power LED is on but
there is no LCD display.
Is the LCD backlight on?
Is the cable firmly
connected to the CNJ013
connector on the ECG
control board?
Yes
No
No
Yes
The LCD unit is faulty.
Normal
Yes
- flowchart
- troubleshooting table
- system error messages at power-up
Troubleshooting Flo wchart
Use the troubleshooting flowchart to find the possible sources of a problem.
Troubleshooting Flowchart
<ECG-9020K only>
3. TROUBLESHOOTING AND SYSTEM ERR OR MESSAGE
Service Manual ECG-9010/9020 Rev A 3.1
3. TROUBLESHOO TING AND SYSTEM ERROR MESSAGE
The power of the
instrument does not turn
on.
Does the instrument
operate during AC
power operation?
Yes
Does the LED of the AC power
light?
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.
Is the battery charged?
Yes
Yes
No
No
No
Charge the battery.
Check the cable connections
to the CNJ013 connector on
the ECG control board and
the connector on the Inverter
board.
Normal
Check the F0102 battery
fuse on the power board.
Normal
The power board is faulty.
Check the cable connection
to the CN51 connector on
the power board.
Normal
Is the F0102 battery fuse
on the power board blown?.
No
The power unit is faulty.
Yes
Replace the F0102 battery
fuse on the power board.
3.2 Service Manual ECG-9010/9020 Rev A
The recorder does not
feed the recording paper
when the Start switch is
pressed.
3. TROUBLESHOOTING AND SYSTEM ERR OR MESSAGE
Does the LED for the Start
switch light up?
Yes
Does the recorder print
when the recording paper
is manually pulled out
from under the thermal
head?
Yes
Check the cable connection
to the CNJ036 connector
on the ECG control board.
Normal
The motor is faulty.
The ECG control board
is faulty.
No
Does the recorder print
in manual mode?
No
Does the paper empty
mark blink?
No
The ECG control board is
faulty.
Yes
Yes
Normal
Check the cable connection
to the CNJ036 connector
on the ECG control board.
Normal
The ECG control board
is faulty.
The paper mark sensor
is faulty.
Service Manual ECG-9010/9020 Rev A 3.3
3. TROUBLESHOO TING AND SYSTEM ERROR MESSAGE
Troubleshooting T able
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 “Correctiv e Action” column.
4. If the 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
Problem Poss ible Cause/Crite ria Action
The powe r LED li ghts but there
is no display or backlight on the
LCD screen.
The instr ument does not operat e
during AC power operation.
The instr ument does not operat e
on bat tery pow er.
Faulty connection to the CN012
or CNJ013 connector on the ECG
control board.
Faulty I nverter b oard. Replace t he I nverter b oard.
Fa ul ty LC D mo dul e .
Blown F011 or F012 power uni t
fuse.
Faulty connection to the CN033
or CNJ035 connector on the ECG
control board.
Damaged power cord. Replace the power cord.
Faulty power unit. Replace the power unit.
Faulty ECG control b oard. Replac e t he ECG control b oard.
Damaged membrane key. Replace the membrane key.
The batter y is not cha rged. Charge t he batt ery.
Blown F051 battery fuse. R eplace the F051 battery fuse.
Check the connection to the CNJ012
and CNJ013 connector on the ECG
control board.
Replace the LCD module.
Replace the F011 or F012 power unit
fuse.
Check the connection to the CNJ033
and CNJ035 connector on the ECG
control board.
Damaged battery. Replace t he batt ery.
Faul ty con nect ion to the CNJ 033
or CNJ035 connector on the ECG
control board or the CN031 or
CN051 connecto r on the power
unit.
3.4 Service Manual ECG-9010/9020 Rev A
Check the connection to the CNJ033
and CNJ035 connector on the ECG
control board a nd the CN031 and
CN01 connector on the power unit.
3. TROUBLESHOOTING AND SYSTEM ERR OR MESSAGE
Problem
Possible Cause/ Crite ria
Ac ti on
No key or switch operation. Damaged membrane key. Replace the membrane key.
Faulty connection to the CNJ033
connector on the ECG control
board.
Check the connection to the
CNJ033 connector on the ECG
control board.
Faulty ECG control board. Repla ce the ECG contr ol board.
Only certai n electr ode l ead
waveforms are di splayed on the
screen or noise appears on the
waveform.
The electrodes or cabl es
connections from the patient to
the instrument is not properly
connected.
Make sure that al electrodes and
cables connection fro m the patient
to the in strum ent are pr oper ly
connected.
Faulty ECG control board. Repla ce the ECG contr ol board.
No electrode lead waveforms are
displayed on the screen or noise
Electrodes not attached to t he
patient.
Make sure that the electrodes are
properly att ached to t he p atient.
appears on all waveforms.
Faulty ECG control board. Repla ce the ECG contr ol board.
Vertical a nd hori zontal s trips
appear on the LCD screen a t
constant intervals.
Faulty connection to the CNJ013
connector on the ECG control
board.
Check the connection to the
CNJ013 connector on the ECG
control board.
Faulty ECG control board. Repla ce the ECG contr ol board.
Faulty LCD unit. Replace the LCD unit.
No sound. Check the connection to the
CNJ032 connector on the ECG
control board.
Faulty spea ker. R eplace t he spea ker assy.
Check the connection to the
CNJ032 connector on the ECG
control board.
Service Manual ECG-9010/9020 Rev A 3.5
3. TROUBLESHOO TING AND SYSTEM ERROR MESSAGE
Troubleshooting Recording Problem
Problem
The recorder does not f eed the
recording paper when th e Start
switch is pressed.
The recording paper is fed but
there is no printing.
Possible Cause/Criteria
Dirty paper mark sensor. Clean the paper mark sensor.
Faulty connection to the CNJ033
or CNJ036 connector on the ECG
control board.
Damaged membrane key. Replace the membrane key.
Faulty ECG control board. Replace the ECG control board.
Faulty motor. Replace the motor.
The thermal head is incorrectly
positioned.
Faulty connection to the CNJ011
connector on the ECG control
board or the CN031 connector on
the power unit.
Faulty thermal head. Replace the thermal head.
Faulty power unit. Replace the power unit.
Check the connection to theCNJ033
and CNJ0336 connectors on the ECG
control board.
Readjust the position of the thermal
head.
Check the connection to the CNJ011
connector on the ECG control board
and the CN031 connector on the
power unit.
Action
The paper mark cannot be
detected.
Sometimes the recorder does
not print and blank recording
paper is fed from the reco rder.
The recording paper tracks
zigzag or to one side.
Faulty ECG control board. Replace the ECG control board.
Dirty paper mark sensor. Clean the paper mark sensor.
Faulty connection to the CNJ036
connector on the ECG control
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
protects the thermal head f rom
strong noise like hum is rejecting
noisy waveforms.
Dirty thermal head
The recording paper is not
properly set in the instrument.
The thermal head is incorrectly
positioned.
Inaccurate or worn out platen
roller.
.
Check the connection to the CNJ036
connector on the ECG control board.
Check the electrode attachment to the
patient, and if necessary, re-position
the electrodes so that a good ECG
waveform is displayed.
Clean the thermal head.
Make sure that the recordig paper is
aligned with the lower recording
paper guide
Readjust the position of the thermal
head.
Replace the magazine assy.
3.6 Service Manual ECG-9010/9020 Rev A
System Error Message
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.
If the same system information appears again after restarting the
instrument, do not use the instrument until service per sonnel 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.
3. TROUBLESHOOTING AND SYSTEM ERR OR MESSAGE
NOTE
System Information
Indicates an error number to identify the problem. To solve the problem, do the
corrective action described below.
Er ro r No. Mea ni ng
"00" Input unit error: An inte rrupt signal of 2 ms
is generated.
"01"
Input unit er ror: Ther e is no res ponse to t he
host.
"02"
Input unit error: Communication protocol
error.
"03"
"04"
"05"
4 bit CPU error: Initializat ion err or. Replace the ECG control bo ard.
4 bit CPU error: "No respons e" error. Replace the ECG contro l bo ard.
A key on the operaton panel is short-
circuited.
"06"
"07"
"08"
RTC error: No i nterrupt signal of 125 ms. R eplace th e ECG control bo ard.
RTC error: I ncorre ct data in SRAM. Replace th e ECG contro l bo ard.
All the system setup settings other than the
items described in the following note a re
re turned to th e fac tory ini tial sett ings . Thi s
is because the lithi um battery is replaced.
"09"
Lithium battery is completely dischar ged. Replace the lithium battery.
Corrective Action
Replace th e ECG control bo ard.
Replace th e ECG control bo ard.
Replace th e ECG control bo ard.
Replace the membrane key.
"Error 08" appears once aft er the lithi um
battery i s r eplaced. Correct ive action i s not
required.
"10"
"11"
Bus err or. Replace th e ECG control bo ard.
Address err or. Replace th e ECG control bo ard.
Service Manual ECG-9010/9020 Rev A 3.7
3. TROUBLESHOO TING AND SYSTEM ERROR MESSAGE
Error No. Meaning
"12"
"13"
"14"
"15"
Illegal command. Replace the ECG control board.
Zero division error. Replace the ECG control board.
Power off time out. Replace the ECG control board.
EEPROM error: This occurs due to the
EEPROM check error, installed language
error or communication error between the
host and EEPROM.
"16"
"17"
"18"
"19"
Local language flash memory error. Replace the ECG control boa rd.
ECG model error. Replace the ECG control board.
Local language is not installed. Install the local language.
Local language is not installed. Install the local language.
Error in memory area for local language. Re-install the local language.
"20"
Local language
text file
version does not
match the ECG software version.
"21"
"22"
ECG interpretation error (Time over). Check the input waveforms. If any noise is
The entered information does not match the
data in the flash memory.
Correctiv e Action
Replace the ECG control board.
Install the local language
text file
which is
the same version as the ECG software.
superimposed on the waveforms, find and
eliminate the cause. If no noi se is
superimposed on the waveform, replace the
ECG control board.
Replace the ECG control board.
NOTE
••
• “Error 05” also appears when an y key on the operation panel is
••
pressed and held down.
••
• 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 ERR OR MESSAGE
Error History
Indicates the latest three errors and the date of the latest error, as in the example
below.
********** System Information **********
Error number: 1 5
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
System T est ....................................................................................................................... 4.1
Overall ..................................................................................................................... 4.1
Calling up the Test Level 1 ....................................................................................... 4.2
Calling up the Test Level 2 ....................................................................................... 4.3
Entering the System Test Number ........................................................................... 4.4
Executing the System Test....................................................................................... 4.5
Quitting the System Test .......................................................................................... 4.6
Exiting the System Test Mode .................................................................................. 4.6
Demonstration ................................................................................................................... 4.7
Recorder ............................................................................................................................ 4.8
Thermal Head .................................................................................................................. 4.11
Key................................................................................................................................... 4.12
Memory............................................................................................................................ 4.13
Single Memory Test Mode ..................................................................................... 4.14
Continuous Memory Test Mode ............................................................................. 4.14
LCD/LED.......................................................................................................................... 4.15
Input Unit ......................................................................................................................... 4.17
Calibration........................................................................................................................ 4.18
Communication................................................................................................................ 4.19
CRO/EXT1....................................................................................................................... 4.21
System Setup Initialization............................................................................................... 4.23
ECG Findings List Recording........................................................................................... 4.24
Recording Resolution Setting .......................................................................................... 4.25
Cue Mark Adjustment ...................................................................................................... 4.26
Date and Time Setting ..................................................................................................... 4.28
Setting the Date and Time ..................................................................................... 4.28
Service Manual ECG-9010/9020 Rev A 4C.1
System Test
4. SYSTEM TEST, ADJUSTMENT AND SETTING
This section describes:
• 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.
Overall
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 • Recorder
• Recorder • Thermal head
• Key* • Recording resolution setting
• Memory* • Key*
• LCD/LED*
(1)
• Memory (single)*
• Input unit* • Memory (continuous)
• Calibration* • LCD/LED*
(1)
• Communication* • Input unit*
• CRO/EXT1* • Calibration*
• System Setup Initialization* • Communication*
• ECG Findings List Recording • CRO/EXT1*
• System Setup Initialization*
• Cue mark adjustment
(1)
LCD is checked for the ECG-9020K only.
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 actions solve the problem, contact
your Nihon Kohden representative.
Service Manual ECG-9010/9020 Rev A 4.1
4. SYSTEM TEST, ADJUSTMENT AND SETTING
Calling up the Test Level 1 1. If the power is on, turn it off.
Release the FEED/MARK key immediately after the instrument starts
printing. If y ou 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.
NOTE
The only difference between the ECG-9010K and ECG-9020K printouts is the
description of the key explanation.
Printout (ECG-9020K)
System Test
1:
To check system, press system
test number, then press
START/STOP key.
2:
To quit the test, press
AUTO/MANUAL key.
Key Explanation
0: COPY/CAL
1: F1
2: F2
3: F3
4: AGE
5: SEX
6: MODE
7: RHYTHM
8: FEED/MARK
9: FILTER
Test level 1
Demonstration [00]
Recorder [01]
Key [02]
Memory [03]
LCD/LED [04]
Input unit [05]
Calibration [06]
Communication [07]
CRO/EX1 [08]
System Setup Initialization [10]
ECG Findings List Recording [11]
Sytem T est Screen (ECG-9020K)
4.2 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.
Release the FEED/MARK key immediately after the instrument starts
printing. If y ou 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/MANUAL 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.
NOTE
System Test
1:
To check system, press system
test number, then press
START/STOP key.
2:
To quit the test, press
AUTO/MANUAL key.
Key Explanation
0: COPY/CAL
1: F1
2: F2
3: F3
4: AGE
5: SEX
6: MODE
7: RHYTHM
8: FEED/MARK
9: FILTER
The only difference between the ECG-9010K and ECG-9020K printouts is the
description of the key explanation.
Printout (ECG-9020K)
Test level 2
Recorder [00]
Thermal head [01]
Recording resolution setting [02]
Key [03]
Memory (single) [04]
Memory (continuous) [05]
LCD/LED [06]
Input unit [07]
Calibration [08]
Communication [09]
CRO/EXT1 [10]
System Setup Initialization [12]
Cue mark adjustment (−4.0 mm) [13]
Cue mark adjustment (−3.5 mm) [14]
Cue mark adjustment (−3.0 mm) [15]
Cue mark adjustment (−2.5 mm) [16]
Cue mark adjustment (−2.0 mm) [17]
Cue mark adjustment (−1.5 mm) [18]
Cue mark adjustment (−1.0 mm) [19]
Cue mark adjustment (−0.5 mm) [20]
Cue mark adjustment ( 0 mm) [21]
Cue mark adjustment (−0.5 mm) [22]
Cue mark adjustment (−1.0 mm) [23]
Cue mark adjustment (−1.5 mm) [24]
Cue mark adjustment (−2.0 mm) [25]
Cue mark adjustment (−2.5 mm) [26]
Cue mark adjustment (−3.0 mm) [27]
Cue mark adjustment (−3.5 mm) [28]
System Setup transfer [29]
System Setup receiver [30]
Reset elapsed time [31]
Download font [32]
Sytem T est Screen (ECG-9020K)
Service Manual ECG-9010/9020 Rev A 4.3
4. SYSTEM TEST, ADJUSTMENT AND SETTING
Entering the System Test Number
Operation panel
Use the following keys on the operation panel to enter a 2-digit number for
executing the desired system 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 < (left arrow) 6 SPEED + LEAD < (left arrow)
2 LEAD > (right arrow) 7 SPEED + LEAD > (right arrow)
3 FEED/MARK 8 SPEED + FEED/MARK
4 FILTER 9 SPEED + FILTER
9010 Program sheet
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
15324
6
4.4 Service Manual ECG-9010/9020 Rev A
7
8
9
0
4. SYSTEM TEST, ADJUSTMENT AND SETTING
Executing the System Test
Press the START/STOP key. For some tests, the System Test screen is displayed
during the test as shown below (ECG-9020K only).
System T est Screen (ECG-9020K)
If you entered an unspecified number, an alarm occurs. The alarm indication is
different between the ECG-9010K and ECG-9020K as follows:
• ECG-9010K: 8 repeating “pips” alarm sound is generated.
• ECG-9020K: 8 repeating “pips” alarm sound and the “Invalid number.
Please re-enter number” error message is displayed as shown
below.
70
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 System Test Mode
After all desired system tests are finished, press the POWER key.
4.6 Service Manual ECG-9010/9020 Rev A
Demonstration
4. SYSTEM TEST, ADJUSTMENT AND SETTING
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
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 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
Not printed in Test level 2.
Refer to the “Thermal Head”
section for this check.
Paper mark
Small rectangle printed
when the paper mark is
detected.
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 Sour ce of Proble m
A dirty thermal head can cause some parts
to be u nevenly o r incom plete ly print ed.
1.2.Clean t he t hermal h ead wit h the t hermal
head cl eaner pen.
Corrective Action
If this does not fix the problem, replace
the thermal head.
A faulty thermal head can cause some parts
at a certain position to be unevenly or
incom plet ely print ed.
1.2.Clean t he t hermal h ead wit h the t hermal
head cl eaner pen.
If this does not fix the problem, replace
the thermal head.
Check Procedure f or Grid
Check that all the parts of the grid are clearly, evenly and completely printed.
Possible Source of Problem
A faulty ECG control boar d ca n caus e all or
Replace the ECG contro l bo ard.
Corrective Action
some pa rts to be unclear, une venly or
incom plet ely print ed.
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 Sour ce of Proble m
Corrective Action
Badly positioned t hermal head. 1.2.Adjust t he thermal head po sition.
If this does not fix the problem, replace
the thermal head.
Damaged, deformed or badl y pos itioned
motor g ear .
1.2.Check the motor gear and its po sit ion.
If this does not fix the problem, replace
the motor ge ar.
Dirty motor rot ation sens or. Clean the motor rotation s ensor as
described in the "Maintena nce" sect ion.
Loose or damaged axle. Tighten and check the axle as described
in the "Disassembly and Assembly"
section.
Faulty motor. Replace the mot or.
Faulty
ECG control board. Replace t he ECG control board.
Service Manual ECG-9010/9020 Rev A 4.9
4. SYSTEM TEST, ADJUSTMENT AND SETTING
Check Procedure 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 Sour ce of Problem
If the paper mark is not occasionally
detected, the paper mark sensor is di rty.
If the paper mark is not detected at all, the
paper mark sensor board is faulty.
Clean the paper mark sensor as descr ibed
in the "Maintenance" section.
Replace the paper mark sensor board.
Corrective Act ion
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 f eed direction
Small
rectangle
Paper mark
4.10 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.
To 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
Incorrectly set thermal head recording
resolution setting.
Faulty cable connection to the CNJ011
connector on the ECG control board or the
CN031 connector on the power unit.
Adjust the thermal head recording resolution
as described in this section.
Check the cable connections to the CNJ011
connector on the ECG control board and the
CN031 connector on the power unit.
Corrective Action
Faulty power unit. Replace the power unit.
Badly positioned recorder component. Check and adjust the recorder component
position.
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.
The POWER and AUTO/MANUAL keys cannot be checked by this test.
To check if these two keys are functioning correctly, do the following:
••
• POWER key
••
Check that the power of the instrument is on or off when the
POWER key is turned on or off.
••
• AUTO/MANUAL key
••
Check that the Key test is stopped by pressing the AUTO/MANUAL
key.
NOTE
Check Procedure for Operation Panel Key
Check that the name of the pressed key is printed.
Possible Source of Problem
Damaged membrane key. Repl ace the membrane key.
Cor rect iv e Ac ti on
4.12 Service Manual ECG-9010/9020 Rev A
Memory
4. SYSTEM TEST, ADJUSTMENT AND SETTING
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 mode 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)
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 13.4 V
Error count
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, 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 f or Single Memory Test Mode
Check that no “Error” messages appear.
Continuous Memory Test Mode
Possible Source of Problem
Faulty memory on the ECG control bo ard. R eplace the ECG control boa rd. Each
memory mounted o n th e ECG contr ol bo ard
cannot be re placed at memory component
level.
Cor rect iv e Ac ti on
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 f or Continuous Memory Test Mode
Check that no “Error” messages appear.
Possible Source of Problem
Faulty memory on the ECG control bo ard. R eplace the ECG control boa rd. Each
memory mounted o n th e ECG contr ol bo ard
cannot be re placed at memory component
level.
Cor rect iv e Ac ti on
4.14 Service Manual ECG-9010/9020 Rev A
LCD/LED
4. SYSTEM TEST, ADJUSTMENT AND SETTING
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 T est (ECG-9020K onl y)
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:
12
43
LED T est
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:
••
• Battery charge lamp: Not lit (This lamp indicates the remaining
••
battery power before and after the LED
test during battery operation.)
••
• AC power lamp: Lit
••
••
• POWER lamp: Lit when AC power is used
••
Service Manual ECG-9010/9020 Rev A 4.15
4. SYSTEM TEST, ADJUSTMENT AND SETTING
Procedure
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
CNJ013 connector on the ECG control
board.
Check the cab le connections to the CNJ012
and CNJ013 connector s on the ECG control
board.
Faulty LCD module. Repl ace the L CD module.
Faulty ECG contro l bo ard. Replace the EC G contro l board.
Check Procedure for LED Test
Check that all the LEDs on the operation panel light up.
Possible Sou rce of Problem
Faulty cable connection to the CNJ012 or
CNJ013 connector on the ECG control
board.
Check the cab le connections to the CNJ012
and CNJ013 connector s on the ECG control
board.
Cor rect iv e Acti on
Damaged membrane key. Repl ace the membrane key.
Faulty ECG contro l bo ard. Replace the EC G contro l board.
4.16 Service Manual ECG-9010/9020 Rev A
Input Unit
4. SYSTEM TEST, ADJUSTMENT AND SETTING
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, 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
C1 Normal
C2 Normal
C3 Normal
C4 Normal
C5 Normal
C6 Normal
Input check jig
Procedure
1. Connect the electrode lead to the instrument.
2. Attach all tips of each electrode lead to the 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/MANUALl key. The instrument returns to the
stanby mode for entering the system test number.
Check Procedure f or Input Unit Test
Check that the lead off condition is detected correctly.
Possible Source of Problem
Corr ect iv e Ac ti on
Faulty ECG contro l board. Replace the ECG control bo ard.
Faulty input chec k j ig. Replace the input chec k j ig.
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 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.
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
10 mm±2%
more than 7.3 mm
25 mm
Possible Source of Problem
Faulty ECG contro l bo ard. Replace the EC G contro l board.
4.18 Service Manual ECG-9010/9020 Rev A
Cor rect iv e Ac ti on
Communication
4. SYSTEM TEST, ADJUSTMENT AND SETTING
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 (SIO). 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 )
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
Error count
0
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
2. TXD
3. RXD
4. RTS
5. CTS
6. DSR
7. GND
8. HS
9. DTR
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 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
Faulty ECG contro l bo ard. Replace the EC G contro l board.
Cor rect iv e Ac ti on
4.20 Service Manual ECG-9010/9020 Rev A
CRO/EXT1
4. SYSTEM TEST, ADJUSTMENT AND SETTING
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 from 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 CRO/EXT1 test result.
Preparation
A locally made check jig is required for the test. To make the check jig, use the
two 3.5φ monaural jacks and leads and solder the signal line and ground line of the
two jacks with leads as shown below.
Signal line
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
Cor rectiv e Action
Faulty ECG contro l bo ard. Replace the EC G contro l board.
4.22 Service Manual ECG-9010/9020 Rev A
System Setup Initialization
This is used to reset all the system settings to the factory initial settings.
The following settings are not reset to the factory initial settings even
if the instrument is initialized.
••
• date and time*
••
••
• recording resolution setting*
••
••
• cue mark position*
••
••
• elapsed time
••
••
• saved ECG data
••
For settings marked with *, refer to the f o llowing 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 man ual.
4. SYSTEM TEST, ADJUSTMENT AND SETTING
NOTE
••
• display language**
••
••
• hospital name**
••
••
• direct/modem connection**
••
••
• local language font
••
Procedure
Enter the system test number [10] (Test level 1) or [12] (Test level 2) and press the
START/ST OP ke y.
If the initialization is completed, the folloing occurs:
• ECG-9010K: One “bing bong” alarm sound is generated and the instrument
returns to the stanby mode for entering the system test number.
• 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.
Service Manual ECG-9010/9020 Rev A 4.23
4. SYSTEM TEST, ADJUSTMENT AND SETTING
ECG Findings List Recording
This is used to print 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
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 START/STOP key.
4. SYSTEM TEST, ADJUSTMENT AND SETTING
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
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. Put the paper to the paper cutting part as if the paper was cut as shown below.
If the broken 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
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.
Tracking direction
Apply “+” to
measured value.
Paper mark
Measure direction.
Marked point
Apply “−” to
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.
4.26 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 Adjustment System Test Adjustment
No. Value (mm) No. Value (mm)
[13] − 4.0 [21] 0.0
[14] − 3.5 [22] + 0.5
[15] − 3.0 [23] + 1.0
[16] − 2.5 [24] + 1.5
[17] − 2.0 [25] + 2.0
[18] − 1.5 [26] + 2.5
[19] − 1.0 [27] + 3.0
[20] − 0.5 [28] + 3.5
6. Enter the appropriate system test number [xx] and press the START/STOP key.
The “Cue mark adjustment [xxx mm]” message is printed and the instrument
returns to the standby mode for entering the system test number. The
adjustment is completed.
7. Verify that the broken line on the paper lines up with the cutting part on the top
casing.
Service Manual ECG-9010/9020 Rev A 4.27
4. SYSTEM TEST, ADJUSTMENT AND SETTING
Date and Time Setting
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 ECG9010K/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.
Setting the Date and Time
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 y ou 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 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.
4.28 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.
Service Manual ECG-9010/9020 Rev A 4.29
4. SYSTEM TEST, ADJUSTMENT AND SETTING
• If 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.
NOTE
If you entered an unspecified number, an alarm occurs. The alarm indication is
different between the ECG-9010K and ECG-9020K as follows:
• ECG-9010K: 8 repeating “pips” alarm sound is generated.
• ECG-9020K: 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
Block Diagram.................................................................................................................... 5.1
Po wer Unit.......................................................................................................................... 5.2
ECG Control Board............................................................................................................ 5.2
Flash ROM Board .............................................................................................................. 5.3
Inverter Board .................................................................................................................... 5.3
Service Manual ECG-9010/9020 Rev A 5C.1
Block Diagram
5. BOARD/UNIT DESCRIPTION
NOTE
The LCD module and inverter board are used for the ECG-9020K only.
AC
source
Piezo-electric
buzzer
Motor, Motor sensor,
Mark sensor
Membrane key
LCD module
2 pin
5 pin
Inverter board
Thermal head
CN11 (3pin)
Power Unit (SC-903D)
CNA011
CNA012
CNA015
CNA013
CN31 (16pin)
CNJ032 (2pin)
CNJ036 (12pin)
CNJ033 (40pin)
CNJ012 (12pin)
CNJ013 (6pin)
CNJ011 (12pin)
CN021
(30pin)
CN51 (4pin)
Flash ROM Board
ECG Control Board
(UT-23561)
CNJ035 (30pin)
(UT-2357)
CNJ011 (80pin)
CNJ021 (80pin)
CNJ031 (D-SUB 9pin)
CNJ043 (mini jack)
CNJ041 (mini jack)
CNJ091 (D-SUB15pin)
SIO
EXT-IN
CRO
Patient Input
Battery
CNA014
Service Manual ECG-9010/9020 Rev A 5.1
5. BOARD/UNIT DESCRIPTION
Po wer Unit
ECG Control Board
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.
The ECG Control board consists of the following components:
Component Description
CPU: MC68EC020 (Operating frequency: 25 MHz)
ROM: For system software, 2 MB
DRAM: Main memory, 1 MB
Flash memory: For font of local language, 1 MB
For filing data, 256 KB
Real time clock: For monitoring back-up battery, built-in 140 B SRAM
Timer: 1 ms timer
Interrupt request signal ON/OFF: selectable
Operation mode: fixed
Serial interface: Equivelent to RS-232C, 1 channel
Baud rate: 2,400 to 115,200 bps selectable
Speaker circuit: Beep sound, Sound by noise generator
Interrupt request: Auto-vector method
Interface: To ECG input section
Recorder:
LCD:
Controller: For keyboard
A/D converter:
5.2 Service Manual ECG-9010/9020 Rev A
Flash ROM Board
Inverter Board
5. BOARD/UNIT DESCRIPTION
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.
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 and
Assembly
Before You Begin................................................................................................................ 6.1
Warnings and Cautions ........................................................................................... 6.1
Required T ools ......................................................................................................... 6.1
Board and Unit Location .......................................................................................... 6.2
Cable Connection .................................................................................................... 6.3
Removing the Top Casing .................................................................................................. 6.4
Removing the LCD Assy.................................................................................................... 6.5
Removing the Thermal Head Assy .................................................................................... 6.6
Removing the Motor Assy.................................................................................................. 6.8
Removing the Speaker Assy.............................................................................................. 6.9
Removing the Inverter Board ........................................................................................... 6.10
Removing the ECG Control Board................................................................................... 6.11
Removing the Po wer Unit................................................................................................. 6.12
Replacing the Thermistor and Termistor Cable ...................................................... 6.14
Removing the Battery Terminal Assy ............................................................................... 6.15
Removing the Magazine Assy ......................................................................................... 6.16
Removing the Bottom Casing .......................................................................................... 6.17
Replacing the Fuse on the Po wer Board.......................................................................... 6.18
Replacing the Lithium Battery on the ECG Control Board ............................................... 6.19
Service Manual ECG-9010/9020 Rev A 6C.1
Before Y ou Begin
Warnings and Cautions
6. DISASSEMBLY AND ASSEMBLY
The procedures in this section tell how to remove, replace and install major
components in the instrument.
Removing, replacing and installing major components should be done by
qualified service personnel.
W ARNINGS
••
• 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.
Required T ools
CAUTIONS
••
• Before connecting or disconnecting any cables, turn off the
••
instrument, 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.
• 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
Service Manual ECG-9010/9020 Rev A 6.1
6. DISASSEMBLY AND ASSEMBLY
Board and Unit Location
Motor Assy
Speaker Assy
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)
Flash ROM Board
Inverter Board
(for ECG-9020K
only)
ECG Control Board
Power Unit
6.2 Service Manual ECG-9010/9020 Rev A
6. DISASSEMBLY AND ASSEMBLY
Cable Connection
The following cable connection diagram shows the connection of the cables in
the instrument.
Cable Connection Diagram
® CNA013
- CNA012
° CNA015
¬ CNA011
¯CNA014
Service Manual ECG-9010/9020 Rev A 6.3
6. DISASSEMBLY AND ASSEMBLY
Removing the Top Casing
1. Reverse the instrument and remove the three M3 pan head screws.
M3 pan head screw
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
Film cable
CA UTION
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.
and your finger as shown in the expanded illustration and remove the film
cable.
Film cable connector
Top casing
6.4 Service Manual ECG-9010/9020 Rev A
Removing the LCD Assy
1. Remove the top casing as described in 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
ECG control board and pull out the LCD assy film cable from the connector
on the ECG control board to remove it.
6. DISASSEMBLY AND ASSEMBLY
NOTE
This procedure is used for the ECG-9020K only.
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 Thermal Head Assy
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. 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.
CA UTION
3. Disconnect the thermal head assy connector from the thermal head assy.
4. 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
with spring washer
Thermal head
bracket
Thermal head
spring
Thermal head
assy
Thermal head
spacer
Thermal head
assy connector
Mark sensor BD
earth plate spring
6.6 Service Manual ECG-9010/9020 Rev A
Thermal head bracket
fixed rib
Thermal head
spring hook
6. DISASSEMBLY AND ASSEMBLY
5. Remove the thermal head springs from the thermal head spring hooks.
6. Remove the three M3 pan head screws with spring washers.
CA UTIONS WHEN REPLACING
••
• Replace the thermal head bracket so that the mark sensor BD earth
••
plate spring is not damaged.
••
• 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”
2. Remove the LCD assy as described in the “Removing the LCD Assy”
3. Remove the thermal head bracket as described in the “Removing the
4. Remove the two M3 pan head screws holding the motor assy to the bottom
5. Disconnect the motor assy connector from the ECG control board.
section.
section. This step is for the ECG-9020K only.
Thermal Head Assy” section.
casing.
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
earth plate
M3 pan head screw
with spring washer
with spring washer
Mark sensor board
Motor assy connector
Lead hook
6.8 Service Manual ECG-9010/9020 Rev A
ECG control
board
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.
6. DISASSEMBLY AND ASSEMBLY
ECG control
board
Speaker
Speaker assy
connector
Service Manual ECG-9010/9020 Rev A 6.9
6. DISASSEMBLY AND ASSEMBLY
Removing the Inverter Board
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.
1. Remove the top casing as described in the “Removing the Top Casing”
section.
WARNING
NOTE
This procedure is used for the ECG-9020K only.
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.
Inverter board
connector
Inverter
board
ECG control
board
6.10 Service Manual ECG-9010/9020 Rev A
Removing the ECG Control Board
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 T ranslator Support T ool 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.
6. DISASSEMBLY AND ASSEMBLY
CA UTION
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
ECG control
board
Service Manual ECG-9010/9020 Rev A 6.11
connector
6. DISASSEMBLY AND ASSEMBLY
Removing the Power Unit
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 ground terminal assy.
6. Remove the two M3 pan head screws with spring washers holding the power
unit to the bottom casing.
CA UTION
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.
M3 pan head screw
with spring washer
Thermistor
wire
Spacer bolt 2
(shorter)
Spacer bolt 3
(longer)
Thermistor
Battery cover
plate
6.12 Service Manual ECG-9010/9020 Rev A
Ground terminal
assy
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.
CA UTION
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 power 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
wire
Thermistor
Ferrite tape
Thermistor
seal
Service Manual ECG-9010/9020 Rev A 6.13
6. DISASSEMBLY AND ASSEMBLY
Replacing the Thermistor and Thermistor Cable CA UTION
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. R eplace the thermistor so that is in the correct position, as shown below.
CA UTION
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.
< Side view >
Battery
compartment
Thermistor
wire
Thermistor seal
Thermistor tip
6.14 Service Manual ECG-9010/9020 Rev A
Removing the Battery Terminal Assy
1. Remove the top casing as described in the “Removing the Top 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. DISASSEMBLY AND ASSEMBLY
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 nut
Hook
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.
E-ring
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
Removing the Bottom Casing
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.
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.
6. DISASSEMBLY AND ASSEMBLY
NOTE
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 power unit as described inthe “Removing the Power Unit”
section.
7. Remove the battery terminal assy as described in the “Removing the Battery
Terminal Assy” section.
8. Remove the magazine assy as described in the “Removing the Magazine
Assy” section.
Service Manual ECG-9010/9020 Rev A 6.17
6. DISASSEMBLY AND ASSEMBLY
Replacing the Fuse on the Power Board
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 are 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.
NOTE
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
2
1
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 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.
CA UTION
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
board
Service Manual ECG-9010/9020 Rev A 6.19
Lithium battery
Section 7 Replaceable P arts List
General Parts List .............................................................................................................. 7.2
Top Casing Assy ................................................................................................................ 7.4
Top Casing Assy, RK-0007 for ECG-9010K............................................................. 7.4
Top Casing Assy, RK-0009 for ECG-9020K............................................................. 7.5
Thermal Head Assy , YZ-011H8.......................................................................................... 7.6
Motor Assy, GC-0011......................................................................................................... 7.7
Speaker Assy, RK-0005..................................................................................................... 7.8
Magazine Assy, RH-0001 .................................................................................................. 7.9
Battery T erminal Assy, RK-0006 ...................................................................................... 7.10
LCD Assy, VL-0001.......................................................................................................... 7.11
Cart and Fixing Plate ....................................................................................................... 7.12
Patient Cab le Hanger....................................................................................................... 7.14
Service Manual ECG-9010/9020 Rev A 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 A 7.1
7. REPLACEABLE PARTS LIST
General Parts List
Index NK Code No. Qty Description
101 RK-0009 1 ECG-9020K top casing Assy ECG-9020K上部ケース Assy
101A RK-0007 1 ECG-9010K top casing Assy ECG-9010K上部ケースAssy
201 VL-0001 1 LCD Assy LCD Assy
205 1124-037173 1 High voltage label コウアツラベル (BS)
206 543984 1 Inverter board CXA-K0505-VJL インバータBD
207 6114-088371A 1 Shield sheet 1 インバータゼツエンシート
208 UT-2357 1 Flash ROM board FLASH ROM BD
209 6113-028492B 1 Flash ROM board guide Flash ROM BDガイド
210 6113-028741B 1 Shield plate ニュウリョクブシールドバン
211 6114-088335 2 Spacer bolt 1 LCDシチュウ
212 UT-23561 1 ECG control board ECG CONTROL BD
213 6113-030453A 1 Shield sheet 2 ECG CONTシールドシート
301 6114-073378A 2 Ground lug アースラグ
302 515284 3 Bearing B-F3-27 ベアリング B-F3-27
303 2229-000673 3 Power unit ground name plate SC-612E アースメイバン
304 6112-010405A 1 Thermal head bracket サーマルヘッドオサエ
305 6114-088291A 2 Thermal head spring サーマルヘッドバネ
306 YZ-011H8 1 Thermal head Assy サーマルヘッドAssy
307 6114-088308A 1 Mark sensor BD earth plate ペーパBD アースバン
308 GC-0011 1 Motor Assy モータAssy
309 6114-096077 1 Thermal head assy ヘッドスペーサ
310 6111-004405A 1 Recorder plate レコーダキバン
311 RH-0001 1 Magazine Assy マガジンAssy
312 6114-096086 1 Connector spacer コネクタスペーサ
313 6114-097085 2 Thermal head bracket collar サーマルヘッドオサエカラー
401 SC-903D 1 Power unit 電源ユニット
402 6114-087764A 1 Flash ROM board cover Flash ROM BDフタ
404 6114-088326A 2 Spacer bolt 2 Flash ROM BDシチュウ
405 6114-088317A 1 Spacer bolt 3 BD カンシチュウ
412 547507 4 Mini clamp TMC-6 横型ミニクランプ TMC-6
501 RK-0006 1 Battery terminal Assy バッテリ端子Assy
502 6114-088398A 1 Thermistor seal サーミスタシール
503 6114-087862A 1 Release lever カイジョレバー
505 6111-004388A 1 Bottom casing カブホンタイ
506 6144-005993A 1 Ground terminal Assy アースタンシAssy
507 6113-028483A 1 Battery case cover BATTフタ
508 6114-094293 1 Battery case rubber BATTラバ
509 6114-088424A 1 Suction paper キュウスイシ
510 547516 4 Rubber foot TM-166-12 バンポン TM-166-12
511 6114-088406A 1 Battery cover plate BATTカバ
512 RK-0005 1 Speaker Assy スピーカAssy
7.2 Service Manual ECG-9010/9020 Rev A
7. REPLACEABLE PARTS LIST
Service Manual ECG-9010/9020 Rev A 7.3
7. REPLACEABLE PARTS LIST
Top Casing Assy
Top Casing Assy, RK-0007 for ECG-9010K
Index NK Code No. Qty Description
1 6114-087853A 1 Release button 解除ボタン
2 547525 1 Ultra spring C105 ULTRA SPRING C105 (圧縮コイルバネ)
3 6143-008671 1 Operation panel Assy 9010K操作パネル Assy for ECG-9010K
4 6123-010278B 1 Top casing for ECG-9010K XM 上部本体シルク図
5 6114-092731A 1 Membrane EMI spring メンブレイン EMI バネ
6 541914 1 Ferrite core FPC-24-12-3 フェライトコア FPC-24-12-3
7 6114-092749A 1 Ferrite tape フェライトテープ
7.4 Service Manual ECG-9010/9020 Rev A
7. REPLACEABLE PARTS LIST
Top Casing Assy, RK-0009 for ECG-9020K
Index NK Code No. Qty Description
1 6114-087853A 1 Release button 解除ボタン
2 547525 1 Ultra spring C105 ULTRA SPRING C105 (圧縮コイルバネ)
3 6143-008234B 1 Operation panel Assy 9020K 操作パネル Assy
for ECG-9020K
4 6123-010153A 1 Top casing for ECG-9020K 上部本体シルク図
5 6114-092731A 1 Membrane EMI spring メンブレインEMIバネ
6 6114-088362A 1 LCD filter LCD フィルタ
7 541914 1 Ferrite core FPC-24-12-3 フェライトコア FPC-24-12-3
8 6114-092749A 1 Ferrite tape フェライトテープ
Service Manual ECG-9010/9020 Rev A 7.5
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