NO
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CAUSE
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HOW TO CHECK
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WHAT TO DO
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1
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- wiring lead in contact with, or foreign matter caught in movable part of occlusion detector
- I.V solution stains on unit
|
- Visual check
- Visual check
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- Correct the wiring
- Wipe off I.V solution with warm water
|
2
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- Unit not plugged into outlet, or power cord defective.
- Fuse blown [inside the inlet]
- Transformer defective
- CN-9 of main CPU connections bad.
- Fuse blown inside main PCB: ICP 2
- Rectifier defective [inside main PCB:PS1].
- Three terminal regulator damage. (radiating fin part: SI3132V)
- LED defective (inside sub PCB: LED 1)
|
- AC voltage not being received at service outlet
- Visual check on 2 fuses at the back. Tester check.
- Check potential difference between No-4 and No-6 pins of CN-9. If 13.8VAC voltage is not measured , suspect transformer defective
- Check connector
- Check fuse: ICP 2, applying tester between two ends of fuse.
- Check
potential difference between NO-1 & No-2 pins of CN-12. If about
17VDC voltage is not measured, suspect regulator defective.
- Check the potential difference between NO-3 & No-2 pins of CN-12. If about 13VDC voltage is not measured suspect regulator defective.
- Check the voltage between the 2 ends of resistance R1. If it is 0 or 13V suspect LED defective.
|
- Secure plug-receptacle connection. Replace power source cable for supply.
- replace fuse (315mA or 500mA slow blow type)
- Check transformer relevant wiring: replace transformer.
- Repair connector
- Replace main PCB.
- Replace main PCB.
- Replace radiating fin.
- Replace sub PCB.
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2
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9. Short-circuit of wiring.
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9. Check voltage between input/output ends of three terminal regulator and ground by tester.
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9. Replace main PCB or sub PCB.
|
3
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- Membrane sheet SW defective.
- Cable defective.
- Power supply circuit defective.
- Three terminal regulator for 5V output defective (Radiating fin part: SI 3052V)
- Short circuit
|
Self- check (*10) does not start.
- Suspect
the membrane sheet SW defective when: circuit between No-6 & No-10
pins of sub PCB connector (CN-1) remains open when power source SW is
pressed, or it is in short circuit condition before SW operation.
- Check cable by applying tester between No 12 pin of sub PCB (CN-2) and No 6 pin of main PCB (CN3B).
- Check if II level signal is output to No 12 pin of power source circuit IC7. Also No 1 pin of source power ON/OFF relay is on L level. Check if voltage between No-7 and No-8 pins of CN-12 is measured at about 13VDC.
- Suspect
regulator defective when: about 13VDC voltage is measured between No-7
& No-8 of pins of CN-12, but 5VDC is not measured between No-9 &
No8 pins
- Tester check between input/output ends of three terminal regulator and ground.
|
- Replace panel part.
- Replace cable.
- Replace main PCB.
- Replace rear panel.
- Replace main PCB or Sub.
|
4
|
- Sub PCB, ROM, RAM defective
- Main PCB, ROM, RAM defective
|
- Err-1 is displayed.
- Err-2 is displayed
|
- Replace sub PCB.
- Replace main PCB.
|
5
|
- Main CPU defective
- Motor drive circuit defective.
- Main PCB connector: CN-5 defective.
- Main PCB connector CN5 defective
- Cable defective.
- Motor defective
- Cable defective.
- Motor rotation detection sensor defective.
- Defective motor rotation detection circuit.
|
Err-3 is displayed.
- Suspect
main CPU. When signal is not generated on main CPU pins 36-43 or, when
signal is generated but pulse dignal is input also to main CPU NO.1 pin.
- Suspect
motor drive circuit defective: when signal is output on on main CPU
pins No 367-43, but voltage is ot measured on pins no.1 and No-1 of the
connector CN-5 or pulse dignal is not generated on pins 2-5
- Check connector.
- Check connector.
- Check cable.
- Motor is out of order when: signal
is generated on main CPU pins 36-43 AND voltage is measure on pins No-1
and No-6 of connector: CN-5 and pulse signal is generated on pins 2-5.
- Check cable.
- Suspect sensor. Defective when: pulse signal is not output between No-3 and No-4 pins of connector CN11 during motor is running.
- Suspect
circuit defective when: Pulse signal is not output from No-10 pin of
IC-12 of motor rotation detection circuit during motor is running.
|
- Replace main PCB.
- Replace Main PCB.
- Check connector.
- Check connector function.
- Replace cable
- Replace motor.
- Replace cable.
- Replace motor rotation detection sensor.
- Replace main PCB.
|
6
|
- Main PCB connector: CN-4 defective.
- Cable defective.
- Air-in-line detection circuit defective.
- Supersoniv air-in-line detection sensor defective.
- Main CPU defective.
- Main PCB connector: CN-6 defective.
- Cable defective.
- Occlusion detection PCB defective.
- Main CPU defective.
|
Err 4 is displayed.
- Check connector.
- Check cable.
- Check
if oscillator (QZ2) oscillates at 3.2MHz. Check if 1.6MHz pulse in
output fron No-3 pin of IC10 of air-in-line detection circuit. Check if there is 1.6MHz transmitting pulse between No-1 and No-2 pins of connector CN-4. Check if there is 1.6MHz receiving pulse between No-4 and No-5 pins of connector CN-4. Check if amplified recived signal is output frm NO-14 pin of IC-15 of air-in-line detection circuit. Check if voltage is measured on N)-16 pin of main CPU: (IC-1) exceeding threshold value [0.8v]
- Suspect sensor defective: when Wave receiving pulse signal is not output from pins No-4, No-5 of CN-4. despite wave transmitting pulse is input to pins No-1 and No-2 of connector [CN-4].
- Suspect
main CPU failure when: voltage is measured on No-16 pin of main
CPU:[IC-1] exceeding threshold value of [0.8V]and, at the same time 5V
voltage is added to pin No-12.
- Check connector.
- Check cable.
- Occlusion
detection PCB id judged to be out of order, if voltage between N0-3 and
No-4 pins does not change when occlusion frame is forced to move by
finger.
- Suspect
main CPU defective when: voltage is measured on No-16 pin of main CPU
(IC-1) not exceeding threshold value [1.0V] and at the same time 5V
voltage is added to pin No-12.
|
- Check connector.
- Replace cable.
- Replace main PCB.
- Replace supersonic air-in-line detection sensor.
- Replace main PCB.
- Check connector.
- replace cable.
- Replace occlusion detection PCB.
- Replace main PCB
|
7
|
E2-ROM errir
|
1. ERR 5 is displayed
|
1. Replace main PCB.
|
8
|
- Main PCB connector: CN-3 defective.
- Main or sub PCB defective
- Communication circuit defective.
|
Err 6,7 display or buzzer ON.
- Check connector.
- Err 6,7 display or buzzer ON.
- Err 6,7 display or buzzer ON.
|
- check connector.
- Replace main of sub PCB.
- Replace main or sub PCB.
- [Note]: Err display/buzzer On occurs also at time of DIP SW 8bit ON.(fall edge of timing chart.)
|
9
|
- Other switch is also ON.
- Sub PCB connector (CN-1) defective.
- Membrane sheet SW defective.
- Sub CPU defective
|
Err 8 is displayed
- Err 8 display.
- Check connector.
- Membrane SW is damaged when the following connector pins are ins short-circuit from the beginning [before SW ON] [CN-1]: 5-7P, 5-8P,5-9P, 2-7P, 2-8P, 2-9P, 3-7P, 3-8P, 3-9P, 4-8P, 4-9P.
- Other than the above.
|
- Power source re-switch ON.
- Check connector function.
- Replace panel part.
- Replace sub PCB.
|
10
|
- Sub PCB connector: CN-1 defective.
- Cable defective.
- Membrane sheet SW defective.
- Defective of source power SW disconnection detection circuit.
- Sub CPU defective.
|
Err 9 is displayed.
- Check connector.
- Check cable.
- Membrane SW is damaged when No-6 and No-10 pins of CN-1 of PCB are continuously in short circuit.
- Circuit is defective when: Output from No-42 pin of sub CPU continues on H level, despite membrane SW is normal.
- Other than the above.
|
- Check connection function.
- Replace cable.
- Replace membrane sheet SW.
- Replace sub PCB.
- Replace sub PCB.
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TERUMO INFUSION PUMP - TROUBLESHOOTING - MEDICAL ELECTRONICS
