COPYRIGHT © 2002 CANON INC.
2000 2000 2000 2000
CANON SmartBase PC1210D/1230D/1270D REV. 1 MAR. 2002
7-41
CHAPTER 7 TROUBLESHOOTING
4.2 Troubleshooting Malfunctions (other than service error)
4.2.1 Power is absent.
Power plug
1) Is the power plug connected to the power outlet?
NO:
Connect it firmly.
Power cord
2) Is the power cord connected to the machine? Moreover, is the
power cord normal?
NO:
Connect it. If it is faulty, replace it.
Source power
3) Is the rated voltage present at the power outlet?
YES: Replace the power supply PCB. If the fuse has blown, find and re-
move the cause.
NO:
The problem is not of the machine. Advise the user.
4.2.2 The LCD fails to operate.
Connector
1) Is the connection of the following connectors normal: J401 and
J402 on the control panel PCB; J315 on the image processor PCB;
J4020 on the LCD?
NO:
Connector them firmly. If the flexible cable has a scratch, replace
it.
LCD
2) Try replacing the LCD. Is the problem corrected?
YES: End.
Control panel PCB/Image processor PCB
3) Try replacing the control panel PCB. Is the problem corrected?
YES: End.
NO:
Replace the image processor PCB.