Scanning System Related Service Call - Sharp AR-651 Service Handbook

5. 1. 9. Scanning system related service call

[C26] Peak detection error
Does the exposure lamp light? (Perform the output check in the test mode: 03-267)
YES
NO
1. Check if the connectors of the exposure lamp and inverter are disconnected.
2. Check the SLG board if the connector pin J9 is disconnected and the harness is short- or open-
circuited.
3. Check if the conductor pattern on the SLG board is short- or open-circuited.
4. Replace the SLG board.
5. Replace the inverter.
6. Replace the exposure lamp.
AR-651/810 TROUBLE SHOOTING
1. Check if the connectors on the CCD and SLG boards are disconnected.
2. Check if the shading correction plate is dirty.
3. Check if the conductor pattern on the CCD board is short- or open-circuited.
4. Check if the conductor pattern on the SLG board is short- or open-circuited.
5. Replace the lens unit.
6. Replace the SLG board.
5 - 60