C1143 (bizhub 958/808)

Contents

Trouble type	C1143: Arm drive motors drive malfunction
Rank	B
Trouble detection condition	<When FS-537 or FS-537SD is installed> The arm home position sensor (PS26) is not turned ON (unblocked) or OFF (blocked) even after the set period of time has elapsed while the arm drive motor (M8) is energized.
Trouble isolation	–
Relevant electrical parts	• Arm drive motor (M8) • Arm home position sensor (PS26) • FS control board (FSCB)

 Procedure

1. Check the connector between M8-relay CN13<A>-FSCB J14 for proper connection and correct as necessary.
2. Check the connector of M8 for proper drive coupling and correct as necessary.
3. Check the connector between PS26-relay CN13<B>-FSCB J14 for proper connection and correct as necessary.
4. PS26 I/O check, sensor check
   • Control signal: FSCB J14<B>-3 (ON)
   • Location of electrical component: FS-537/FS-537SD 17-K to L
5. M8 operation check
   • Control signal: FSCB J14<A>-8 to 11
   • Location of electrical component: FS-537/FS-537SD 17-K to L
6. Replace M8. (Part# A87HPPA700)
7. Replace FSCB. (Part# A87HPP9M01)

NOTICE

• Link to the wiring diagram (FS-537/FS-537SD)

Please search Knowledge Base articles and Bulletins as they may contain relevant information and updated Part information such as Part numbers.

K.3.7.25 (Link to the Field Service Manual)