Communication System Related Service Call; Radf I/F Being Abnormal; Communication Error Between The Main Cpu And Pfc-Cpu; Communication Error Between The Main Cpu And Ipc Board - Toshiba e-STUDIO650 Service Handbook

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?
YES
NO
Is the ADF board short- or open-circuited?
YES
NO
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?
YES
NO
Is the conductor pattern on the IPC board short- or open-circuited?
YES
NO
Replace the LGC board.
e-STUDIO550/650/810 TROUBLE SHOOTING
Replace the harness.
1. Replace the ADF board.
2. Perform the EEPROM initialization of RADF, sensor automatical adjustment
and tray width sensor adjustment.
Reconnect the connecter.
Replace the IPC board.
5 - 68 JUNE 2002 © TOSHIBA TEC