Power Is Not Supplied To Automatic Duplex Unit - Konica Minolta bizhub C250 Service Manual

Field Service Ver. 3.0 Aug. 2006
17.4.3

Power is not supplied to automatic duplex unit

Step
Is DC24 V being output from CN19-2 on
1
Duplex?
Is DC24 V being output from CNDUP-2 on
2
PWB-M?
3 Is the fuse on PU1 conducting?
17.4.4 Finisher
A. FS-501/FS-603
2
Step
Are DC24 V and DC5 V being applied to
1 CN60-11 and CN60-1, respectively, of the
Finisher?
Are DC24 V and DC5 V being applied to
2 PJ6PU1-1 on PU1 and CNFIN-1 on PWB-
M, respectively?
3 Is the fuse on PU1 conducting?
B. bizhub C252
2
Step
Are DC24 V being applied to CN65-1 of the
1
Finisher?
Are DC24 V being applied to PJ6DCPU-1
2
on DCPU?
Is the fuse on DCPU conducting?
3
Check Item
Check Item
Check item
17. Power supply trouble
WIRING
DIAGRAM Result
(Location)
Malfunction in Duplex.
K-22 NO
Check wiring from PWB-M
J-22 NO
to CN19 to Duplex.
YES Change PU1.
—
NO Malfunction in Duplex.
WIRING
DIAGRAM Result
(Location)
Malfunction in Finisher.
E-26 to 27 NO
Check wiring from PU1 to
R-8
NO PWB-M to Finisher.
G-26
YES Change PU1.
—
NO Malfunction in Finisher.
WIRING
DIAGRAM Result
(Location)
Malfunction in finisher.
E-26 to 27 NO
R-8 Check wiring from DCPU
NO
G-26 to finisher.
YES Change DCPU.
—
NO Malfunction in finisher.
Action
Action
Action
471