14. E05015. E05116. E202 (Locks the keys but does not indicate a code.)ActionReplace PS20.Replace the holding trayY motor (M9).End.Replace the DCcontroller PCB.CHAPTER 10 TROUBLESHOOTINGCauseHolding tray Xhome positionsensor (PS21)Holding tray Xmotor (M8)Holding traydriver PCBDC controllerPCBChecksIs the holding tray X homeposition sensor (PS21) normal?Disconnect J209 from the holdingtray driver PCB. Is there electricalcontinuity between the followingpins on the motor side?J209-1 and -2J209-5 and -6Replace the holding tray driverPCB. Is the problem corrected?Step123YES/NONONOYESNOActionReplace the PS21.Replace the holding trayX motor (M8).End.Replace the DCcontroller PCB.CauseHolding tray Yhome positionsensor (PS20)Holding tray Ymotor (M9)Holding traydriver PCBDC controllerPCBChecksIs the holding tray Y homeposition sensor (PS20) normal?Disconnect J208 from the holdingtray driver PCB. Is there electricalcontinuity between the followingpins on the motor side?J208-4 and -5J208-8 and -9Replace the holding tray driverPCB. Is the problem corrected?Step123YES/NONONOYESNOCauseScanner homeposition sensorDC controllerPCBChecksIs the scanner at home positionwhen E202 turns on?Is the scanner home positionsensor (PS1) normal? (See thedescriptions on how to checkphotointerrupters.)Step12YES/NONONOYESActionSee “The scanner failsto move forward.”Check the wiring fromthe DC controller PCB toPS1; if normal, replacePS1.Replace the DCcontroller PCB.COPYRIGHT © 1997 CANON INC. CANON NP6045 REV. 1 MAR. 1997 PRINTED IN JAPAN (IMPRIME AU JAPON) 10-83
