Field Service Ver. 1.0 Mar. 2006 8. Trouble code65FS-603Troubleshooting(4) Stapler/Crease Clock Sensor (Saddle Section)8.3.9 C11C1: Punch Control Board malfunctionsRelevant electrical partsStaple/Folding Motor Clock Sensor (PI14-FN)Staple/Folding Motor (M7-FN)Finisher Control Board (PWB-A FN)Step ActionWIRING DIAGRAMControl signalLocation(Electrical compo-nents)1Check the motor and sensor connectorsfor proper connection, and correct asnecessary.— —2Check the connector of motor for properdrive coupling, and correct as neces-sary.— —3 PI14-FN I/O, sensor check PWB-A FN CN9A FN-5 FS-603 G-84 M7-FN operation check when the MainPower Switch is turned OFF and ON. PWB-A FN CN6A FN-3 to 4 FS-603 B-35 PWB-A FN replacement — —Relevant electrical partsFinisher Control Board (PWB-A FN)Punch Control Board (PWB-B PK)Step ActionWIRING DIAGRAMControl signalLocation(Electrical compo-nents)1 Turn OFF and ON the main switch. — —2 Check the connection condition betweenthe Punch Unit and PWB-A FN. — —3Measure the voltage between CN14-5(+) and CN14-3 (-) of the PWB-A FN. Isthe voltage 24VDC?— —4 Initialize Punch Unit EEP-ROM. — —5 PWB-B PK replacement — —6 PWB-A FN replacement — —Y104710-1 Service Manual
