Others - Ricoh A109 Service Manual

SC791: Projector lamp does not turn off
- Definition - [C]
Projector lamp stays on when it should turn off.
<Possible causes>
•
Projector lamp regulator defective
SC792: Projector lamp overheat
- Definition - [C]
Projector control board detects the lamp overheat condition through the
thermistor.
<Possible causes>
•
Projector lamp regulator defective
•
Thermistor defective

1.11 OTHERS

SC900: Bk-total counter not on
- Definition - [B]
Bk-total counter does not turn on.
<Possible causes>
•
Bk-total counter defective
•
DC power supply board defective (FU802, FU804)
SC901: Bk-total counter not off
- Definition - [B]
Bk-total counter does not turn off.
<Possible causes>
•
Bk-total counter defective
SC902: FC-total counter does not turn on
SC903: FC-total counter does not turn off
- Definition - [B]
FC-total counter does not turn on or off.
<Possible causes>
•
FC-total counter defective
A109 6-24 FSM