Communication Error Between System-Cpu And Scanner-Cpu; Scanner Response Abnormality - Toshiba e-STUDIO477S Service Manual

Procedure
2 Check firmware version
3 Board check
Parts to be replaced
PU board
SYS board
LED head
Harness of LED head
[F110] Communication error between System-CPU and Scanner-CPU
[F111] Scanner response abnormality
Classification
Communication related service
call
Check item
SU board
SYS board
Parts to be replaced
SU board
SYS board
e-STUDIO477S/527S/477SL
ERROR CODE AND TROUBLESHOOTING
Check item
• Check the version of the system firmware on the SYS
board.
• Check the version of the PU firmware on the PU
board.
• Check if the connector CN118, CN119 on the SYS
board and the connector CUIF0, CUIF1 on the PU
board are completely inserted.
• Check if the connector pin between the SYS board
(connector CN118, CN119) and the PU board
(connector CUIF0, CUIF1) is disconnected.
• Check if the connectors HEAD0K of the LED head is
completely inserted, and the harness is disconnected
or open circuited.
• Check if the conductor patterns on the PU board and
SYS board are short circuited or open circuited
Error content
[F110] Communication error between System-CPU and Scanner-
CPU
[F111] Scanner response abnormality
Measures
• Check if the harness connecting the SU board and SYS board is
disconnected or open circuited.
• Check if the conductor pattern on the SU board is short circuited
or open circuited.
Check if the conductor pattern on the SYS board is short circuited or
open circuited.
Remark
Measures
Remark
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