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C5356 (bizhub 750i)
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Contents
Trouble type | C5356: Machine internal cooling fan failure to turn |
Rank | B |
Trouble detection condition | The fan lock signal remains Low for a predetermined continuous period of time while the fan is turning. |
Trouble isolation | – |
Relevant electrical parts | -Machine internal cooling fan (FM25) -Expansion control board (EXCB) -CPU board (CPUB) -Base board (BASEB) |
Procedure
- Check the connector between FM25-relay CN402-BASEB CN1400E for proper connection and correct as necessary.
- Check the fan for possible overload and correct as necessary.
- Check the connector between EXCB CN2EX-BASEB CN12E for proper connection and correct as necessary.
- Check CPUB for proper installation and correct as necessary.
- FM25 load check
- Check code: 42
- Multi code: 25, 26
- Control signal: BASEB CN1400E-1 (REM), BASEB CN1400E-3 (LOCK)
- Location of electrical component: 22-K
- Replace FM25. (Part# 9313130051)
- Replace EXCB. (Part# AC74H00501)
- Replace CPUB. (Part# ACV7H02P02)
- Replace BASEB. (Part# ACV7H02101)