Hitachi UX Twin Nozzle Service Manual page 281

6.2.24 Model-key Fault
Model key fault
Does the fault recur after
disconnect and reconnect the model
key to EZJ133 board CN25?
No
Do the system reset by rescue software
Does the fault recur?
No
Replace the EZJ133 board. *1
Does the fault recur?
No
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 Fault
Language-key Fault
Does the fault recur after disconnect
and reconnect the language key to
EZJ133 board CN15?
No
Do the system reset by rescue software
Does the fault recur?
No
Replace the EZJ133 board. *1
Does the fault recur?
No
It is necessary to change the language key.
Contact your local Hitachi sales office with
the unit serial number and model name.
(*1):
Yes
[Caution]
Be sure to check that there is no wrong connection of
harnesses by referring to
Identifying method of harnesses]
Yes
Connection Diagram".
Yes
(*1): When you replace EZJ133 board, refer to
[Caution]
Yes
Be sure to check that there is no wrong connection of
harnesses by referring to
Identifying method of harnesses]
Connection Diagram".
Yes
Yes
6-39
When you replace EZJ133
[Replacement procedures of EZJ133 board]
EZJ133 board (MPU board)".
[Connector numbers and
Resume the
operation.
[Replacement procedures of EZJ133 board]
"3.3.1 EZJ133 board (MPU board)".
[Connector numbers and
Resume the
operation.
board, refer to
"3.3.1
in
"3.3.20 Electrical
in
in
in "3.3.20 Electrical