Hitachi IJ RX2 Service Manual page 212

6.3.13 Internal Communication Error C / M
Internal Communication
Error C/M
Is the EZJ126 board
CN1 connector
disconnected or in
poor contact?
No
Is the EZJ128 board CN1
connector disconnected or in
poor contact?
Ｎo
Used the SOP05 for
call up print data?
Yes
The strobe input timing is
following the regulation?
No
Input the strobe signal with correct
timing of the SOP05 instruction.
Does the fault recur?
No
Yes
Yes
No
Yes
Yes
Do the system reset by rescue soft
Does the fault recur?
No
Replace the EZJ128 board.
EZJ128
基板を交換する
Does the fault recur?
No
Replace the EZJ126 board.
Resume the
operation.
6-33
Normality is restored when the
connector is disconnected and
then reconnected.
Does the fault recur?
No
Yes
Yes
Yes