HITACHI DV-P755U
Manual de Servicio

FLOW CHART NO.21 Audio is not outputted normally. Set the disc on the disc tray, and playback. Are the analog audio signals outputted to each pin of CN1601 on AV CBA? CN1601 13PIN AUDIO(L) CN1601 15PIN AUDIO(R) Yes Are the analog audio signals inputted to each pin of IC1201. IC1201 2PIN AUDIO(L) IC1201 6PIN AUDIO(R) Yes Is the "H" level mute signal outputted to CN1601 on AV CBA ? CN1601 14PIN AUDIO(R)-MUTE Yes Are the analog audio signals outputted to each pin of IC1201? IC1201 1PIN AUDIO(L) IC1201 7PIN AUDIO(R) Yes Are the audio signals outputted to the specific output terminal? Are the audio signals outputted to the audio terminal (JK1404)? No Check the periphery between Pins(1,7) of IC1201 and JK1404, and service it if detective. No Replace the DVD Main CBA or DVD Mechanism. Check each line between each pin of CN1601 and each pin of IC1201 on AV CBA, and service it if detective. CN1601 13PIN � IC1201 2PIN AUDIO(L) CN1601 15PIN � IC1201 6PIN AUDIO(R) No Replace the DVD Main CBA or DVD Mechanism.

No

No

Replace IC1201.

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