10. E015CHAPTER 11 TROUBLESHOOTING11-88 COPYRIGHT © 1997 CANON INC. CANON NP6560/NP6360/NP6260 REV. 0 NOV. 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)CausePower supply(motor con-troller PCB isintegrated withpick-up motor)DC controllerPCBPick-up motor(M2)ChecksSet the meter to the 200VDCrange, and connect the + probe toJ612-3 and the – probe to J612-4on the DC controller PCB. Is thevoltage about 12 V?Is the voltage between thefollowing pins on the DC controllerPCB as indicated?(+) (–) VoltageJ114-B10 J114-B9 about 12 VJ114-B12 J114-B11 about 5 VConnect the + probe to J114-B8and the – probe to GND on theDC controller PCB. Does thevoltage change to about 5 V assoon as the motor starts to rotate?Replace the pick-up motor (M2). Isthe problem corrected?Step1234YES/NONONONOYESActionCheck the wiring fromthe DC power supplyPCB to the motorcontroller PCB; ifnormal, replace the DCpower supply PCB.Check the wiring fromthe DC controller PCB tothe motor controllerPCB; if normal, replacethe DC controller PCB.Check the wiring fromthe DC controller PCB tothe motor controllerPCB; if normal, replacethe DC controller PCB.End.
