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LC-37AD5E
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)?
Is S-MUTE-LINE [IC1710 (100)] at H?
Is audio signal sent from pins (22) (L-ch) and (21) (R-ch) of
IC3002?
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.)
The unit does not enter the DTV mode. Or, the DTV menu does
not appear.
No video output during DTV reception.
No audio output during DTV reception.
No sound except from speakers (3)
NO
NO
YES
DTV troubleshooting
NO
NO
YES
Check the connection to AUDIO_OUTPUT external (J1201) and
external devices.
YES
Check IC1710 and its peripheral circuits, and S-MUTE line.
(Q1204, Q1203, etc.)
NO
Check IC3002 or peripheral circuits.
YES
Go to "The unit does not enter the DTV mode. Or, the DTV menu
does not appear."
YES
Go to "No video output during DTV reception. Colour of image
are not right."
YES
Go to "No audio output during DTV reception. Sound is low"
4 – 6
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