19. TROUBLE CODE Field Service Ver. 2.0 Jul. 2009
770
TROUBLESHOOTING
(2) When FS-527+SD-509 is installed
19.5.24 C1115: Center-staple knife drive motor malfunction
(1) When FS-526+SD-508 is installed
Relevant parts
Center staple alignment motor/F (M24)
Center staple alignment home sensor/F (PS42)
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 M24 for proper
drive coupling, and correct as necessary.
——
3 PS42 I/O check, sensor check SDDB PJ9-6 (ON) SD-509 G-2
4 M24 operation check SDDB PK7-1 to 4 SD-509 G-3
5 Change M24 — —
6 Change SDDB — —
7 Change FSCB — —
Relevant parts
Center fold knife motor (M32)
Center fold knife home sensor (PS34)
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 M32 for proper
drive coupling, and correct as necessary.
——
3 PS34 I/O check, sensor check SDDB CN407-3 (ON) SD-508 K-6
4 M32 operation check SDDB CN411-1 to 2 SD-508 K-8
5 Change M32 — —
6 SDDB ICP8 conduction check — —
7 Change SDDB — —
8 Change FSCB — —
Service Manual Y110571-1
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