DOWNLOAD Sharp DX-AT50H (serv.man15) Service Manual ↓ Size: 32.7 KB | Pages: 6 in PDF or view online for FREE

Model
DX-AT50H (serv.man15)
Pages
6
Size
32.7 KB
Type
PDF
Document
Service Manual
Brand
Device
DVD / Troubleshooting
File
dx-at50h-sm15.pdf
Date

Sharp DX-AT50H (serv.man15) Service Manual ▷ View 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 ?
Do the base of Q1203 and Q1204 become the 
"H" level ?
IC801   7 PIN   AUDIO-L
IC801   8 PIN   AUDIO-R
IC1201   1PIN   AUDIO-L
IC1201   7PIN   AUDIO-R
IC1201   2PIN   AUDIO-L
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.
Check each line between each pin of IC801 
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 ?
Are the analog audio signals outputted to each pin 
of IC1201?
Are the audio signals outputted to the specific 
output terminal ?
Are the audio signals outputted to the L/R OUT 
terminal (JK1201) ?
Yes
Yes
Yes
Yes
No
No
No
No
No
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 ?
Do the base of Q1203 and Q1204 become the 
"H" level ?
IC801   7 PIN   AUDIO-L
IC801   8 PIN   AUDIO-R
IC1201   1PIN   AUDIO-L
IC1201   7PIN   AUDIO-R
IC1201   2PIN   AUDIO-L
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.
Check each line between each pin of IC801 
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 ?
Are the analog audio signals outputted to each pin 
of IC1201?
Are the audio signals outputted to the specific 
output terminal ?
Are the audio signals outputted to the L/R OUT 
terminal (JK1201) ?
Yes
Yes
Yes
Yes
No
No
No
No
No
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 ?
Do the base of Q1203 and Q1204 become the 
"H" level ?
IC801   7 PIN   AUDIO-L
IC801   8 PIN   AUDIO-R
IC1201   1PIN   AUDIO-L
IC1201   7PIN   AUDIO-R
IC1201   2PIN   AUDIO-L
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.
Check each line between each pin of IC801 
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 ?
Are the analog audio signals outputted to each pin 
of IC1201?
Are the audio signals outputted to the specific 
output terminal ?
Are the audio signals outputted to the L/R OUT 
terminal (JK1201) ?
Yes
Yes
Yes
Yes
No
No
No
No
No
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 ?
Do the base of Q1203 and Q1204 become the 
"H" level ?
IC801   7 PIN   AUDIO-L
IC801   8 PIN   AUDIO-R
IC1201   1PIN   AUDIO-L
IC1201   7PIN   AUDIO-R
IC1201   2PIN   AUDIO-L
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.
Check each line between each pin of IC801 
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 ?
Are the analog audio signals outputted to each pin 
of IC1201?
Are the audio signals outputted to the specific 
output terminal ?
Are the audio signals outputted to the L/R OUT 
terminal (JK1201) ?
Yes
Yes
Yes
Yes
No
No
No
No
No
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