Sharp LC-32LD165E - Page 47

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LC-32LD164
LC-32LD165
LC-32LD166
LC-50LD264–LC-50LD265–LC-50LD265RU–LC-50LD266
25
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 (Component) go out?
MAIN UNIT: ↓
↓YES
↓YES
No sound from external input devices (2)
↓
Does not the sound of the audio signal input to (Composite, Y/C) go out?
MAIN UNIT: ↓
↓YES
↓YES
Is the DIF signal output from pin (5/6) of Tuner (TU101)?
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 (9)(YPbPr1L_In) and pin
(12)(YPbPr1R_In) of CN116?
NO
Check the connection to CN116and the external input device.
Refer to “No sound output in all modes”.
Is the audio signal properly sent to pin (V20) (YPBPR_L_IN) and
pin (R17) (YPBPR_R_IN) of IC U401?
NO
Check the line between CN116and IC U401.
Is the audio signal properly sent to pin (9)(YPbPr1L_In) and pin
(12)(YPbPr1R_In) 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 (V20) (YPBPR_L_IN) and
p
in
(
R17
)
(
YPBPR
_
R
_
IN
)
of IC U401?
NO
Check the line between CN116 and IC U401.
Is the DIF signal sent to pin (Y19/W18) of IC U401?
NO
Check IC U401 its peripheral circuits.