Canon PC980 Service Manual - Page 334

CHAPTER 11 TROUBLESHOOTING 16 Pickup fails. (cassette) Cause Main motor (M1) Cassette Paper in cassette Pickup clutch solenoid (SL1), Cassette pickup solenoid (SL5) Step 1 2 3 4 Checks Does the main motor (M1) rotate when the Copy Start key is pressed? Is the cassette set correctly? Is the paper in the cassette placed correctly? Set the meter range to 30 VDC, and connect the meter probes to the following terminals. Does the voltage change to about 24 V in keeping with pickup operation? YES/NO NO NO NO NO Action See "The main motor fails to rotate." Set the cassette correctly. Instruct the user on the correct method of placing paper. Check the wiring from the solenoid to the DC controller PCB; if normal, replace the solenoid. Pickup clutch solenoid (SL1) Cassette pickup solenoid (SL5) + - J109-4 J109-3 J132-2 J132-1 Table 11-402 Cassette spring DC controller PCB 5 Is the force of the cassette spring within specification? (See p. 11-10.) NO Replace the cassette spring. YES Replace the DC controller PCB. COPYRIGHT © 1999 CANON INC. CANON PC800s/900s REV.0 AUG. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON) 11-69