Pioneer AXY1153 Quick Start Manual

Page:SERVICE INFORMATION (QUALITY)Date: No.:MODEL No. * SER. NoCOPART NUMBER DE SYMBOL/DESCRIPTION( ! ):You should use specified parts by safety regulations.PIONEER SERVICE NETWORK CORPORATION NOTE:PARTS CODE1:Changeable form old to new. Memo:2:Not Interchangeable at all.3:Interchangeable in both ways.5:Do not use old parts. ( E1 W1 )KORefer to following pages.Additional 1/4ServiceManual SQH09003Feb. 9, 2009HE Technical Support GroupService Support DivisionPART NUMBERCURRENT PARTS*SERVICEREMEDYPGQI630025Removing chip ceramic capacitor C614 of PFC over voltage detection circuit on power supply unitAs per this change, Assy suffix is changed to AXY1153-BService remedy onlyFACTORYCOUNTER-MEASURES/M No.NEW PARTSDETAILSYMPTOMCAUSEPower down with no standby LED suddenly occurs when changing channel while watching TV(AC power recycling restores operation.)Since the comparator which detects over voltage of PFC of power supply unit generates oscillation, protector circuitmalfunctions caused by change of oscillation attribute to occurrence of sudden load change due to switching channel.(PFC: Power Factor improvement Circuit )SYMBOL/DESCRIPTIONH. KISHIDA, MANAGERIn case of subjected symptom above , please treat this remedy , removing C614.If the operation is not restored by recycling AC power , please replace Power Supply Assy .Please refer to following pages for procedure and PCB handling .Note: All WPC stock has been treated this remedy .

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