LC-19LE320, LC-22LE320, LC-26LE320, LC-32LE320, LC-37LE320, LC-42LE320
54
No sound (during the reception of TV broadcasting)
Does not the sound go out though the picture has come out when TV is received?
MAIN UNIT:
YES
YES
No sound from external input devices (1)
Does not the sound of the audio signal input to SCART1 go out?
TEREMINAL UNIT:
YES
YES
No sound from external input devices (2)
Does not the sound of the audio signal input to AV1 (Component) go out?
MAIN UNIT:
YES
YES
Is the IF signal output from pin (16) and pin (17) of TUNER
(TU102)?
NO
Check the tuner and its peripheral circuits. Replace as required.
Refer to “No sound output in all modes”.
Is the audio signal properly sent to pin (6)(SCT1_AUL_IN) and pin
?
Check the setting of an external input device that connects of
CN151
NO
Is the audio signal properly sent to pin (AA32) and pin (AB33) of IC
U401?
NO
Check the line between CN151 and IC U401
Refer to “No sound output in all modes”.
Is the audio signal properly sent to pin (2)(AV1_AudioLIN) and pin
(4)(AV1_AudioRIN) of CN116?
NO
Check the connection to CN116 and the external input device.
Refer to “No sound output in all modes”.
Is the audio signal properly sent to pin (AD33) and pin (AC34) of IC
U401?
NO
Check the line between CN116 and IC U401.
Is the IF signal sent to pin (AH35) and pin (AH37) of IC U401?
NO
Check IC U401 its peripheral circuits.
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