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C7624 (bizhub 750i)
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Contents
| Trouble type | C7624: Power line B4 error |
| Rank | C |
| Trouble detection condition | The fuse detection unit detected an error for a predetermined time. |
| Trouble isolation | – |
| Relevant electrical parts | -Envelope detection relay board (ENVDRB) -Expansion control board (EXCB) |
Procedure
- EXCB ICP5 conduction check
- Check the connector between ENVDRB CN2-relay CN253-relay CN254-EXCB CN6EX for proper connection and correct as necessary.
- Replace ENVDRB. (Part# AA7NH00W00)
- Replace EXCB. (Part# AC74H00501)