Hitachi UX Twin Nozzle - Page 281

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