Olivetti d-color MF651, Service Manual, Page: 745 / 1053

Field Service Ver. 2.0 Jul. 2009 17. JAM DISPLAY
685
TROUBLESHOOTING
17.3.13 Misfeed at exit section
17.3.14 ADF turnover section
Relevant parts
Exit motor (M4)
Fusing motor (M30)
Switchback motor (M33)
Gate switch solenoid (SD1)
Paper exit sensor (PS39)
ADU paper passage sensor/1 (PS47) Paper feed/transport drive board (PFTDB)
Printer control board (PRCB)
Step Action
WIRING DIAGRAM
Control signal
Location (Electri-
cal component)
1 Initial check items — —
2 PS39 I/O check, sensor check PFTDB CN4-12 (ON) Q-5
3 PS47 I/O check, sensor check PFTDB CN3-3 (ON) Q-7
4 M4 operation check PRCB CN18-17 to 20 C-14
5 M30 operation check
PRCB CN9-3 (REM)
PRCB CN9-6 (LOCK)
K-8
6 M33 operation check PRCB CN18-13 to 16 C-14
7 SD1 operation check PRCB CN18-7 (REM) C-13
8 Change PFTDB — —
9 PFTDB ICP7 conduction check — —
10 Change PRCB — —
Relevant parts
Switchback roller pressure/retraction motor (M5)
Before read sensor (PS9)
Reverse registration sensor (PS8) DF control board (DFCB)
Step Action
WIRING DIAGRAM
Control signal
Location (Electri-
cal component)
1 Initial check items — —
2 PS9 I/O check, sensor check DFCB PJ14-8 (ON) DF-618 B-6
3 PS8 I/O check, sensor check DFCB PJ12-2 (ON) DF-618 I-3
4 M5 operation check DFCB PJ6-10 to 11 DF-618 I-7
5 Change DFCB — —
Y110571-1 Service Manual