2WA/2NJ/2RK
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Notes when replacing the main PWB
When replacing the main PWB, make sure to
remove the SSD (a) from the old board and
install it in the new board (b).
IMPORTANT
A machine without the SSD does not start
up.
Do not replace the main PWB, engine PWB
and SSD at the same time.
Figure 4-267
Execute the following setting after replacing the main PWB.
1. Return the SSD back up data.
*: Before executing U004, make sure to execute.
Execute maintenance mode U026/ Flash/ Restore.
2. Setting the machine number
*: When the power is turned on, C0180 error occurs if there is no machine number data. Execute U004 to
match the serial numbers stored in the PWBs.
Execute it after confirming the engine PWB machine serial number matches the main unit serial number.
Wrong data will be written when there is a discrepancy in U004.
Executing maintenance mode U004
(1)Input "004" using the numeric keys and press the [Start] key.
(2)Select [Execute] and press the [Start] key.
(3)Turn the power switch off then on. Wait more than 5 seconds between the power off and on.
3. Execute maintenance mode U917 to import the settings once exported.
*: Before operating, perform data backup in U917.
4. ID correction operation setting (maintenance mode U464): Calib
(1)Input "464" using the numeric keys and press the [Start] key.
(2)Select [Calib].
(3)Select [Execute] and press the [Start] key.
*: Calibration starts.
a
b
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