Sharp AQUOS LC-37AD5E, Руководство по обслуживанию

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LC-37AD5E
4 – 6
No sound except from speakers (3)
No audio output from AUDIO_OUTPUT terminal.
Checklist:
1) Is the MUTE button on the remote control set to ON?
•••
Set to OFF.
2) Check the connection to external devices.
•••
Is there any improper connection?
Is audio signal sent to pins (13) (L-ch) and (15) (R-ch) of
AUDIO_OUTPUT (J1201)?
YES Check the connection to AUDIO_OUTPUT external (J1201) and
external devices.
NO
Is S-MUTE-LINE [IC1710 (100)] at H? YES Check IC1710 and its peripheral circuits, and S-MUTE line.
(Q1204, Q1203, etc.)
NO
Is audio signal sent from pins (22) (L-ch) and (21) (R-ch) of
IC3002? NO Check IC3002 or peripheral circuits.
YES
Check the audio signal output line from pins (22) (L-ch) and (21)
(R-ch) of IC3002 to pins (13) (L-ch) and (15) (R-ch) of
AUDIO_OUTPUT. (Q1202, Q1201, etc.)
DTV troubleshooting
The unit does not enter the DTV mode. Or, the DTV menu does
not appear.
YES Go to “The unit does not enter the DTV mode. Or, the DTV menu
does not appear.”
NO
No video output during DTV reception. YES Go to “No video output during DTV reception. Colour of image
are not right.”
NO
No audio output during DTV reception. YES Go to “No audio output during DTV reception. Sound is low”