LIFEPAK 20/20e Defibrillator/Monitor
Troubleshooting
Service Code Table
(continued)
(Continued on next page)
Code
Service Code Description
Corrective Action
901b
Therapy PCB communication lost
1. Check the stack connector
2. Replace the A04 Therapy PCB
901d
Testing purpose only
Replace the A01 System PCB
9021
Impedance value indicates regulator in System PCB
pre-amp failed
1. Clear error and perform PIP
2. Replace the A01 System PCB
9c03
Therapy processor, unplanned reset
Replace the A04 Therapy PCB
9c04
Therapy/system controller communication watchdog
Replace the A01 System PCB
9c05
CRC error
1. Clear error and perform PIP
2. Replace the A04 Therapy PCB
9c06
Calibration constant A out of range
1. Perform TCP - defibrillator calibration
2. Clear Service Log
9c07
Calibration constant B out of range
1. Perform TCP - defibrillator calibration
2. Clear Service Log
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