Pioneer 434CMX - PDP - 43" Plasma Panel Service Manual

Also see for PDP 434CMX: Operating instructions Quick reference parts lists Brochure & specs Operating instructions Service manual

PDP-434CMX1101 2 3 41 2 3 4CDFABEAudioNo sound from thespeakersYesNoAre the SP cablesproperly connected?Is sound muting set?Connect the SP cablesproperly then check again.YesIs the volume set to 0?NoNoYesCancel muting then check again.Raise the volume then check again.YesIs a signal output from IC5003on the AUDIO AMP Assy?Is a signal output from IC7603on the AV I/O Assy?Check the connection betweenthe AUDIO AMP Assy and theSP Terminal Assy.YesNo sound from AUDIOOUTYesNoIs sound muting set?Is the sound from theAUDIO OUT in accor-dance with VOL control?Cancel muting then check again.NoYesYes Is the volume set to 0? No Raise the volumethen check again.YesAUDIO AMP Assy # $YesNoHas the signal arrived at IC5003on the AUDIO AMP Assy? Check around IC5003.NoYesIs IC7601 on the AV I/O Assyproperly controlled by themicrocomputer?YesCheck the communication betweeneach input terminal and IC7601.Check the communicationbetween IC7601 and IC7603.Check around the IC7603.Is communication betweenIC7603 and the micro-computer OK?Check the control line fromthe microcomputer.YesHas the signal arrived atIC7603 on the AV I/O Assy?No Check the communication line.AUDIO AMP Assy @YesNoNoNoIs a signal output from IC7601on the AV I/O Assy?No YesCheck around IC7605, IC7606,and IC7607 on the AV I/O Assy,and the connection between theAV I/O Assy and AUDIO AMP Assy.AV I/O Assy =AV I/O Assy -AA A