Hitachi IJ PH - Internal Communication Error C; M

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6.3.11 Internal Communication Error C / M
Internal Communication
Error C/M
Is the EZJ124 board
CN3 connector
disconnected or in
poor contact?
Is the EZJ93 board
CN3 connector
disconnected or in
poor contact?
Normality is restored when the
connector is disconnected and then
reconnected.
Replace the EZJ124 board
Yes
Yes
No
No
Resume the
operation.
Yes
No
Replace the EZJ93 board.
Yes
No
Insert the latest system-data memory
card and turn on the power switch.
Does the fault restore?
Does the fault restore?
System reset with Rescue CF
card.
Does the fault restore?
Does the fault restore?
Yes
No
Yes
No