Dc Power Is Absent - Canon 1130 Service Manual

44

DC power is absent.

Cause
AC power supply
Transfer unit lever
switch (SW3), left
front cover switch
(SW4), delivery
cover switch
(SW5)
DC power supply
PCB
COPYRIGHT © 2002 CANON INC.
Step
1 Is AC power present between the
following terminals?
between J701-1 and J701-3 and
between J701-2 and J701-4 on the
DC power supply PCB
2 Turn off the power switch, and
disconnect the power plug; then,
check each switch (SW3, SW4,
SW5) for electrical continuity. Is it
normal?
3 Disconnect all connectors of the
DC power supply PCB (J1702,
J1703, J1704, J1705, J1706).
Connect the power plug to the
power outlet, and turn on the power
switch. Is the DC power output of
each connector normal?
Connector
J1702
J1703
J1704
J1705
J1706
CANON CLC1100/1130/1150/1160/1180 REV.2 FEB. 2002 PRINTED IN JAPAN (IMPRIME AU JAPON)
CHAPTER 13 TROUBLESHOOTING
Checks
Pin Output
1 38V
1 to 4 24V
1 12V
3 3.3V
1 24V-F
3 8.8V
5 8VR
7 -8V
9 15V
1, 2 5V
Yes/No Action
NO See IV. 43.
NO Replace the faulty
switch.
NO Replace the DC power
supply PCB.
13-131