CHAPTER 11 TROUBLESHOOTINGCOPYRIGHT © 1997 CANON INC. CANON NP6330 REV.0 MAY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON) 11-8317 E22418 E24019 E710, E711CauseBlank shutterhome positionsensor (PS20)DC controllerPCBChecksTurn on the power switch. Doesthe blank shutter (slide shutter)move?Is the blank shutter home positionsensor normal? (See theinstructions on how to checkphotointerrupers.)Step12YES/NONONOYESActionSee “The blank shutterfails to move.”Check the wiring fromthe DC controller PCB tothe sensor; if normal,replace the sensor.Replace the DCcontroller PCB.CauseMalfunctionDC controllerPCBChecksTurn off and on the power switch.Is the problem corrected?Step1YES/NOYESNOActionEnd.Replace the DCcontroller PCB.CauseMalfunctionDC controllerPCBChecksTurn off and on the power switch.Is the problem corrected?Step1YES/NOYESNOActionEnd.Replace the DCcontroller PCB.
