Sharp LC-32LD164E Service Manual page 47

↓
Does not the sound go out though the picture has come out when TV is received?
↓
MAIN UNIT:
Is the DIF signal output from pin (5/6) of Tuner (TU101)?
↓YES
Is the DIF signal sent to pin (Y19/W18) of IC U401?
↓YES
Refer to "No sound output in all modes".
↓
Does not the sound of the audio signal input to (Component) go out?
↓
MAIN UNIT:
Is the audio signal properly sent to pin (9)(YPbPr1L_In) and pin
(12)(YPbPr1R_In) of CN116?
↓YES
Is the audio signal properly sent to pin (V20) (YPBPR_L_IN) and
pin (R17) (YPBPR_R_IN) of IC U401?
↓YES
Refer to "No sound output in all modes".
↓
Does not the sound of the audio signal input to (Composite, Y/C) go out?
↓
MAIN UNIT:
Is the audio signal properly sent to pin (9)(YPbPr1L_In) and pin
(12)(YPbPr1R_In) of CN116?
↓YES
Is the audio signal properly sent to pin (V20) (YPBPR_L_IN) and
pin (R17) (YPBPR_R_IN) of IC U401?
↓YES
Refer to "No sound output in all modes".
LC-50LD264–LC-50LD265–LC-50LD265RU–LC-50LD266
No sound (during the reception of TV broadcasting)
NO
NO
No sound from external input devices (1)
NO
NO
No sound from external input devices (2)
NO
NO
25 47
Check the tuner and its peripheral circuits. Replace as required.
Check IC U401 its peripheral circuits.
Check the connection to CN116and the external input device.
Check the line between CN116and IC U401.
Check the connection to CN116 and the external input device.
Check the line between CN116 and IC U401.
LC-32LD164
LC-32LD165
LC-32LD166