COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)CHAPTER 11 TROUBLESHOOTING11-104CausePick-up clutchDC controllerPCBSensorPick-upassemblyChecksSet the meter to the 30VDCrange, and connect the probes ofthe meter to the connectors on theDC controller shown. Does thevoltage change from 24 to 0 Vwhen the Copy Start key ispressed?Find out which sensor found the jamusing ‘B-JAM’ in service mode (). Is the sensor normal?]4]Step89YES/NOYESNONOYESActionCheck the wiring; ifnormal, replace thecorresponding clutch.Replace the DCcontroller PCB.Check the wiring and thelever; if normal, replacethe sensor.Remove the pick-upassembly, and check thespring.Cassette Clutch + –3 CL10 J117A-2 GND4 CL12 J130A-2 GNDDownload service manual and resetter printer at http://printer1.blogspot.com
