Communication Related Service Call - Toshiba e-STUDIO520 Service Handbook

5.1.9

Communication related service call

[C550] RADF interface error
(1) Check if the harness connecting the ADF board and SLG board is disconnected or open cir-
cuited.
(2) Check if the conductor pattern on the ADF board is short circuited or open circuited.
(3) Check if the conductor pattern on the SLG board is short circuited or open circuited.
(4) Replace the ADF board.
(5) Replace the SLG board.
[C560] Communication error between Engine-CPU and PFC
(1) Check if the conductor pattern around IC57 and IC58 is not short- or open-circuited.
(2) Replace the LGC board.
[C570] Communication error between Engine-CPU and IPC board
(1) Check if the LGC board and IPC board are connected properly.
(2) Check if the conductor pattern on the IPC board is short circuited or open circuited.
(3) Check if the conductor pattern on the LGC board is short circuited or open circuited.
(4) Replace the IPC board.
(5) Replace the LGC board.
[C580] Communication error between IPC board and Finisher
(1) Check if the specified finisher is attached.
(2) Check if the harness connecting the IPC board and the finisher controller PC board is discon-
nected or open circuited.
(3) Check if the conductor pattern on the IPC board is short circuited or open circuited.
(4) Check if the conductor pattern on the finisher controller PC board is short circuited or open cir-
cuited.
(5) Replace the IPC board.
(6) Replace the finisher controller PC board.
[C590] Communication error between Engine-CPU and Laser-CPU
(1) Check if the harness between the LGC board and PLG board is not disconnected or open-cir-
cuited.
(2) Check if the conductor pattern around IC13, IC55, IC125 and CN342 on the LGC board is not
short circuited or open circuited.
(3) Check if the conductor pattern around IC9, IC25, IC32 and CN204 on the PLG board is not short-
or opencircuited.
(4) Check if the connector CN103, CN104 on the SYS board is disconnected.
(5) Replace the LGC board.
(6) Replace the PLG board.
e-STUDIO520/523/600/603/720/723/850/853
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