Toshiba e-STUDIO5540C Service Manual page 129

[F070] Communication error between System-CPU and Engine-CPU
Classification
Communication related service call
Check item
Switching regulator
SYS board
LGC board
IMG board
Replace parts
Switching regulator
LGC board
SYS board
IMG board
[F110] Communication error between System-CPU and Scanner-CPU
[F111] Scanner response abnormality
Classification
Communication related service call
Check item
Reproducibility
SYS board
SLG board
IMG board
Replace parts
SYS board
SLG board
e-STUDIO5540C/6540C/6550C/5560C/6560C/6570C
ERROR CODE and TROUBLESHOOTING
• Check the fuse (F210).
• Connector check (CN404, CN405)
• Board check
• Check the version of the system ROM.
• Connector check (CN135)
• Check the version of the engine ROM.
• Connector check (CN319, CN320)
• Connector check (CN422, CN423, CN424)
• Board check
• Replace the fuse (F210).
• Replace the switching regulator.
If the problem is not corrected with the replacement of the
LGC board, reinstall the removed LGC board and replace the
SYS board.
If the problem is still not corrected with the replacement of the
SYS board, reinstall the removed SYS board and replace the
IMG board.
Turn the power OFF and then back ON using the main power
switch.
• Check the version of the system ROM.
• Connector check
• Check the version of the scanner ROM.
• Connector check
• Connector check
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Error item
Measures
Remarks
Error item
Measures
Remarks