SHARP TROUBLE & ERROR CODES AR-651, AR-810 - OlsonBros

5. 1. 11. Communication system related service call
[C55] RADF I/F being abnormal
Is the harness between the ADF board and SLG board open-circuited?
NO
Replace the harness.
Is the ADF board short- or open-circuited?
NO
Replace the SLG board.
1. Replace the ADF board.
2. Perform the EEPROM initialization of RADF, sensor automatical adjustment
and tray width sensor adjustment.
[C56] Communication error between the main CPU and PFC-CPU
(1) Check if the conductor pattern around IC57 and IC58 is not short- or open-circuited.
(2) Replace the LGC board.
[C57] Communication error between the main CPU and IPC board
Is the connector between the LGC board and IPC board connected inadequately?
NO
Reconnect the connecter.
Is the conductor pattern on the IPC board short- or open-circuited?
NO
YES
YES
YES
YES
Replace the LGC board.
Replace the IPC board.
AR-651/810 TROUBLE SHOOTING 5 - 68