Olivetti d-color MF651, Service Manual, Page: 841 / 1053

Field Service Ver. 2.0 Jul. 2009 19. TROUBLE CODE
781
TROUBLESHOOTING
(2) When FS-527+SD-509 is installed
19.5.43 C1151: Center-staple stapler drive motor malfunction
Relevant parts
Center staple alignment motor/R (M23)
Center staple alignment home sensor/R (PS41) SD drive board (SDDB)
FS control board (FSCB)
Step Action
WIRING DIAGRAM
Control signal
Location (Electri-
cal component)
1
Check the motor and sensor connectors for
proper connection, and correct as neces-
sary.
— —
2
Check the connector of M23 for proper
drive coupling, and correct as necessary.
— —
3 PS41 I/O check, sensor check SDDB PJ9-3 (ON) SD-509 G-2
4 M23 operation check SDDB P7-5 to 8 SD-509 G-2
5 Change M23 — —
6 Change SDDB — —
7 Change FSCB — —
Relevant parts
Center staple motor (M23)
Stapler home sensor (PS33) SD drive board (SDDB)
FS control board (FSCB)
Step Action
WIRING DIAGRAM
Control signal
Location (Electri-
cal component)
1
Check the motor and sensor connectors for
proper connection, and correct as neces-
sary.
— —
2
Check the connector of M23 for proper
drive coupling, and correct as necessary.
— —
3 PS33 I/O check, sensor check SDDB CN403-17 (ON) SD-508 C-10
4 M23 operation check SDDB CN406<A>-1 to 4 (ON) SD-508 K-8
5 Change M23 — —
6 SDDB ICP4 conduction check — —
7 Change SDDB — —
8 Change FSCB — —
Y110571-1 Service Manual