C2357 (bizhub 750i)
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Contents
| Trouble type | C2357: DV 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 | -DV cooling fan (FM19) -CPU board (CPUB) -Base board (BASEB) |
Procedure
- Check the connector between FM19-relay CN804-BASEB CN37E for proper connection and correct as necessary.
- Check the fan for possible overload and correct as necessary.
- Check CPUB for proper installation and correct as necessary.
- FM19 load check
- Check code: 42
- Multi code: 15, 16
- Control signal: BASEB CN37E-1 (REM), BASEB CN37E-3 (LOCK)
- Location of electrical component: 24-K
- Replace FM19. (Part# A93EM10600)
- Replace CPUB. (Part# ACV7H02P02)
- Replace BASEB. (Part# ACV7H02101)