Sharp AR-810 Instrukcja Użytkownika Pobierz pdf (Strona 68)

AR-651/810 TROUBLE SHOOTING 5 - 68

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?

Replace the harness.

Is the ADF board short- or open-circuited?

1. Replace the ADF board.

2. Perform the EEPROM initialization of RADF, sensor automatical adjustment

and tray width sensor adjustment.

Replace the SLG board.

[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?

Reconnect the connecter.

Is the conductor pattern on the IPC board short- or open-circuited?

Replace the IPC board.

Replace the LGC board.

YES

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Sharp AR-810 Instrukcja Użytkownika Strona 68