CANON PS7000
Manual de Servicio

Chapter 3 Troubleshooting

B

Remove the Network Board, and measure the resistance at C2 on the Main Board. *1
Yes

Correct?
No

Replace the Network Board.

Remove the DC Fan, and measure the resistance at C2 on the Main Board. *1
Yes

Correct?
No

Remove the Power Cord from the secondary side, and measure the resistance at C2 on the Main Board. *1
Yes

Replace the DC Fan.

Correct?
No

Check coating of the Power Cord at the secondary side. Good?
No Yes

Replace the Main Board. *3

Replace the Power Cord at the secondary side.

Replace the Power Supply board assy.

To Start of Troubleshooting.

*1: The correct resistance at C2 is 40 to 50-ohm. *2: Measure the resistance between VCC (12 pin) and GND (5 pin). The correct resistance is 1M-ohm or more. *3: Be sure to use the EEPROM from the original Main Board on the replaced new Main Board. (See page 1-5 for details.)

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