Canon Image Reader-A1 iR5000i Service Manual page 687

Wiring, DC load, DC power supply PCB
3) Turn off the main power switch. Is the voltage between the follow-
YES: Check the wiring from the DC power supply PCB to each load.
NO:
4.2.3 Pickup fails
General condition
1) Slide out and then in the cassette. Is the sound of the lifter falling
NO:
Sensor
2) In service mode (COPIER>DISPLAY>JAM), find out which sensor
NO:
Drive motor
3) Is each drive motor mounted correctly?
NO:
COPYRIGHT © 2001 CANON INC.
CHAPTER 4 TROUBLESHOOTING IMAGE FAULTS/MALFUNCTIONS
ing terminals on the DC power supply PCB as indicated when the
power is turned on in about 3 min?
Connector
J4014-1 to 5
J4017-1 to 5
J4003-7
J4015-1 to 3
J4003-5
J4004-1
J4008-1
J4009-1
J4016-1, 2
J4003-3, 4
J4005-1
J4004-3
J4009-3
J4003-1
J4006-1
J4007-1, 3
J4010-1
J4011-1
J4013-2
However, the above output voltages assume tolerances of ±10% in
the AC input power.
Replace the DC power supply PCB.
and the lifter motor rotating heard?
See "The lifter fails to move up."
has detected the jam. Is the sensor normal?
Check the wiring and the sensor lever; if normal, replace the sen-
sor.
Mount the motor correctly.
2000 2000 2000 2000
Output voltage
3VA1
3VA2
3VA3
3VB
5V
5V
5V
5V
5V
12VU
24VU1
24VU2
24VU2
24VU3
24VU3
24VU4
24VU4
24VU4
24VA
CANON iR5000i/iR6000i REV.0 JUNE 2001
Remarks
± 3%
± 3%
± 3%
+ 2%, - 2.5%
± 3%
± 3%
± 3%
± 3%
± 3%
± 5%
± 5%
± 5%
± 5%
± 5%
± 5%
± 5%
± 5%
± 5%
+ 7%, - 5%
4-39 T