Power Supply-Related Malfunctions; Copier Is Not Energized At All - Minolta CF2002 Service Manual

3-3.

Power Supply-Related Malfunctions

(1)

Copier is not energized at all.

IO Board (PWB-IO)
Step Check Item
Is a power voltage supplied across
1
PJ3PU1-1 and 3 on PU1?
Are the fuses (F1 and F2) on PU1 con-
2
ducting?
Is a power voltage supplied across
3
CN1PU2-1 and 2 on PU2?
4 Is the fuse (F1) on PU2 conducting?
Is DC5 V being output from CN2PU2-3
5
on PU2?
Is DC5 V being input to PJ15PU1-1 on
6
PU1?
Is DC5 V being input to PJ1IO-3 on the
7
IO Board?
Relevant Electrical Parts
DC Power Supply 1 (PU1)
DC Power Supply 2 (PU2)
WIRING
DIAGRAM
(Location)
30-H
—
30-F
—
31-F
28-F
14-E
T-69
Result Action
Check wiring
NO between the wall
outlet and PJ3PU1.
NO Change PU1.
NO Change PU1.
NO Change PU2.
NO Change PU2.
NO Change PU2.
NO Change PU1.
YES Change PWB-IO.