Read Sharp DX-AT50H (serv.man15) Service Manual online
DX-AT50H
– 60 –
FLOW CHART NO.19
Audio is not outputted.
Set the disc on the disc tray and playback.
Are the analog audio signals outputted to each pin
of IC801 ?
of IC801 ?
Do the base of Q1203 and Q1204 become the
"H" level ?
"H" level ?
IC801 7 PIN AUDIO-L
IC801 8 PIN AUDIO-R
IC801 8 PIN AUDIO-R
IC1201 1PIN AUDIO-L
IC1201 7PIN AUDIO-R
IC1201 7PIN AUDIO-R
IC1201 2PIN AUDIO-L
IC1201 6PIN AUDIO-R
IC1201 6PIN AUDIO-R
Replace the DVD Main CBA Unit or DVD Mecha.
Replace the DVD Main CBA Unit.
Check or replace IC1201.
Check the periphery between Pins (1,7) of IC1201
and JK1201.
and JK1201.
Check each line between each pin of IC801
and each pin of IC1201.
and each pin of IC1201.
IC801 7 PIN
→
IC1201 2 PIN AUDIO-L
IC801 8 PIN
→
IC1201 6 PIN AUDIO-R
Are the analog audio signals inputted to each pin
of IC1201 ?
of IC1201 ?
Are the analog audio signals outputted to each pin
of IC1201?
of IC1201?
Are the audio signals outputted to the specific
output terminal ?
output terminal ?
Are the audio signals outputted to the L/R OUT
terminal (JK1201) ?
terminal (JK1201) ?
Yes
Yes
Yes
Yes
No
No
No
No
No
