Canon imageRUNNER 2535, Service Manual, Page: 152 / 362

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Parts Replacement and Cleaning > PCB > Removing the DC Controller PCB > Action to Take after Replacement/RAM Clearing
Parts Replacement and Cleaning > PCB > Removing the DC Controller PCB > Action to Take after Replacement/RAM Clearing
Removing the Power Supply PCB
■ Replacement Procedure
1) Remove the inside base cover.( “Removing the Inside Base Cover”(page 4-17). )
2) Remove the left rear cover.( “Removing the Left Rear Cover”(page 4-18). )
3) Remove the left cover.( “Removing the Left Cover”(page 4-16). )
4) Disconnect all connectors on the power supply PCB.
5) Remove the power supply PCB.
- 3 screws
x3
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Removing the DC Controller PCB
■ Before Replacement/RAM Clearing
Print the service data list in the service mode.
REPORT > REPORT OUTPUT > SERVICE DATA LIST
Replacement Procedure
1) Remove the rear cover (right). ( “Removing the Rear Cover (Right)”(page 4-21).. )
2) Remove the rear cover (left). ( “Removing the Rear Cover (Left)”(page 4-22).. )
3) Disconnect all connectors on the DC controller PCB.
4) Remove the DC controller PCB.
- 6 screws (Screw A is tightened together with the earth cable.)
x6
■ Action to Take after Replacement/RAM Clearing
1) Clear the DC controller settings and counters.
Enter the service mode, and Then select the following:
CLEAR > ENGINE > ENGINE BKRAMCLK (Clearing of the RAM on the DC controller
PCB)
2) Turn OFF and then ON the main power switch. (Turning OFF/ON the main power switch
clears the RAM.)
3) If uploading of backup data fails before replacement due to the damage to the DC
controller PCB, enter the values of service mode items recorded on the service label.
Since the values recorded on the service label may be outdated, check the service mode
item list (#SERVICE DATA LIST) printed out in advance, and then enter the latest values.
4) Turn OFF and then ON the main power switch. (Turning OFF/ON the main power switch
allows the values entered for the service mode items to take effect.)
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