Olivetti d-color MF651, Service Manual, Page: 915 / 1053

Field Service Ver. 2.0 Jul. 2009 21. POWER SUPPLY TROUBLE
855
TROUBLESHOOTING
21.3 Power is not supplied to ADF
21.4 Power is not supplied to option
21.4.1 LU-204/301
21.4.2 FS-526/527
Step Check item
WIRING
DIAGRAM
(Location)
Result Action
1 Is DC24 V being output from CN610 on
ADF? Q-21 YES Malfunction in ADF
2 Is DC24 V being output from PJ013-3 on
DCPU? K-26 NO Check wiring from DCPU
to ADF.
3 Is the fuse on DCPU conducting? — YES Change DCPU.
NO Malfunction in DF-611
Step Check item
WIRING
DIAGRAM
(Location)
Result Action
1 Is DC24 V being applied to hookup
connector CN425? W-12 to 13 NO Malfunction in LU-204/301
2 Is DC24 V being output from CN19 on
PFTDB? U-12 to 13 NO Check wiring from PFTDB
to CN19 to LU-204/301.
3 Is the fuse on DCPU conducting? — YES Change DCPU.
NO Malfunction in LU-204/301
Step Check item
WIRING
DIAGRAM
(Location)
Result Action
1 Are DC24 V being applied to CN331<L>? L-26 NO Malfunction in finisher.
2 Are DC24 V being applied to PJ006-3 on
DCPU? K-26 NO Check wiring from DCPU
to finisher.
3 Is the fuse on DCPU conducting? — YES Change DCPU.
NO Malfunction in finisher.
Y110571-1 Service Manual