Sharp DV-SL90UM Service Manual - Page 22

FLOW CHART NO.21 Audio is not outputted normally. Set the disc on the disc tray, and playback. No Are the analog audio signals outputted to each pin of CN1601 on AV CBA? CN1601 14PIN AUDIO-L CN1601 16PIN AUDIO-R Yes Are the analog audio signals inputted to each pin of IC1201. No IC1201 2PIN AUDIO-L IC1201 6PIN AUDIO-R Yes Is the "H" level mute signal outputted to CN1601 on AV CBA ? No CN1601 13PIN A-MUTE CN1601 15PIN A-R-MUTE Yes Are the analog audio signals outputted to each pin of IC1201? IC1201 1PIN AUDIO-L No IC1201 7PIN AUDIO-R Yes Are the audio signals outputted to the specific No output terminal? Are the audio signals outputted to the audio terminal (JK1404)? Replace the DVD Main CBA or DVD Mecha. Check each line between each pin of CN1601 and each pin of IC1201 on AV CBA, and service it if detective. CN1601 14PIN → IC1201 2PIN AUDIO-L CN1601 16PIN → IC1201 6PIN AUDIO-R Replace the DVD Main CBA or DVD Mecha. Replace IC1201. Check the periphery between Pins(1,7) of IC1201 and JK1404, and service it if detective. 1-8-6 E592ATS