Hitachi IJ RX2 Service Manual page 202

6.2.24 Model-key Failure
Model key failure
Does the fault recur after disconnect
and reconnect the model key to
EZJ126 board CN15?
Do the system reset by rescue soft
Does the fault recur?
Replace the EZJ126 board.
Does the fault recur?
It is necessary to change the model key.
Contact your local Hitachi sales office with
the unit serial number and model name.
6.2.25 Language-key Failure
Language-key Failure
Does the fault recur after disconnect
and reconnect the language key to
EZJ126 board CN25?
Do the system reset by rescue soft
Does the fault recur?
Replace the EZJ126 board.
Does the fault recur?
It is necessary to change the language key.
Contact your local Hitachi sales office with
the unit serial number and model name.
Yes
No
Yes
No
Yes
No
Yes
No
Yes
No
Yes
No
6-23
Resume the
operation.
Resume the
operation.