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C7622, C7623 (bizhub C750i)
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Contents
| Trouble type | C7622: Power line B2 error C7623: Power line B3 error |
| Rank | C |
| Trouble detection condition | The fuse detection unit detected an error for a predetermined time. |
| Trouble isolation | – |
| Relevant electrical parts | -PH unit -Expansion control board (EXCB) |
Procedure
- EXCB ICP1 or ICP3 conduction check.
- Check the connector between the PH unit-relay CN306-EXCB CN10EX for proper connection and correct as necessary.
- Check the connector between the PH unit-relay CN300-EXCB CN7EX for proper connection and correct as necessary.
- Replace the PH unit. (Part# ACKNR70100)
- Replace EXCB. (Part# AA7NH00500)