Canon PC1000s Service Manual page 325

CHAPTER
7
TROUBLESHOOTING
- - -
4.2.5 The
speaker fails to generate sound.
Volume setting
1)
Is the volume setting in user mode menu correct?
NO: Correct the setting.
Connector
2) Is the connection of the following connectors normal: 5315 on the
image processor PCB; 5401 and 5404 on the control panel PCB?
NO:
Correct the connection. If the flexible cable has a scratch, replace it.
Speaker
3) lky replacing the speaker. Is the problem corrected?
YES: End.
Control panel PCB. Image processor PCB
4) Replace the control panel PCB. Is the problem corrected?
YES: End.
NO: Replace the image processor PCB.
4.2.6
The message "INSTALL CARTRIDGE" fails to go OFF.
High-voltage contact (between machine and cartridge)
1) Is the high-voltage spring used to supply
high
voltage to the car-
tridge soiled?
YES: Clean it.
High-voltage contact (between high-voltage spring and DC controller PCB; 5205)
2)
Is the connection between the high-voltage spring and the DC con-
troller PCB (5205) normal?
NO: Correct the connection. If the problem cannot be corrected, replace
the faulty part.
Cartridge
3) Replace the cartridge.
Is the problem corrected?
YES: End.
NO:
Replace the DC controller PCB.
COPYRIGHT
0 2002
CANON INC.
CANON PClOOOsrirnageCLASS
DGM)s
REV.
1
AUG.2002
7-43