Toshiba e-STUDIO 2555C Service Manual page 698

Check item
Error code
Check firmware version
Board check
HRNS-LGC-DEV-212
HRNS-LGC-DRM-212
HRNS-LGC-ADU-212
HRNS-DRV-SFBTRU-212
Parts to be replaced
LGC board
SYS board
LED head
HRNS-LGC-DEV-212
HRNS-LGC-DRM-212
HRNS-LGC-ADU-212
HRNS-DRV-SFBTRU-212
[F071] Communication initialization error between System-CPU and Engine-CPU
Classification
Communication related service
call
e-STUDIO2555C/3055C/3555C/4555C/5055C
ERROR CODE AND TROUBLESHOOTING
• Turn the power OFF and then back ON using the main
power switch, and then check if the error code changes to
another one.
• If it changes to another one, follow the procedure for the
changed error code.
• Check the version of the system firmware on the SYS board.
• Check the version of the engine firmware on the LGC board.
• Check if the connector CN128 on the SYS board and the
connector CN350 on the LGC board are completely
inserted.
• Check if the connector pin between the SYS board
(connector CN128) and the LGC board (connector CN350)
is disconnected.
• Check if the connectors CN380, CN381, CN382, CN383,
CN384, CN385, CN386 and CN387 of the LED head are
completely inserted, and the harness is disconnected or
open circuited.
• Check if the conductor patterns on the LGC board and SYS
board are short circuited or open circuited
• Connector check
• Harness check
Communication initialization error between System-CPU and
Engine-CPU
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