Replacing The Main Pcb - Kyocera Mita KM-4230 Service Manual

3-4-1 Replacing the main PCB

(1) Replacing the main PCB only
After replacing the main PCB, remove the backup RAM (IC15) from the old main PCB
and fit it to the new main PCB to maintain the original setting data.
(2) Replacing the main PCB and backup RAM
When replacing the backup RAM along with the main PCB, perform the following steps.
Procedure
• Before removing the old backup RAM:
1. Enter the maintenance mode.
2. Execute maintenance item U000 to output a list of the current settings for
maintenance items.
3. Exit the maintenance mode.
4. Turn the main switch off and disconnect the power plug.
5. Replace the main PCB and backup RAM with the new ones.
• After installing the new backup RAM:
6. Insert the power plug and turn the main switch on.
7. Enter maintenance mode.
8. Execute maintenance item U020.
9. Execute maintenance item U252 and select the destination.
10. Execute maintenance item U000 and output a list of the current settings for
maintenance items.
11. Compare the lists output in steps 2 and 10. If there are any differences, reenter
the data in accordance with the values on the list output in step 2.
12. Exit the maintenance mode.
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