Sharp lc-32rd8, Руководство по обслуживанию

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LC-32RD8E/S/RU-BK/GY (1st Edition)
4 – 4
No sound (during the reception of TV(DIGITAL) broadcasting)
Does not the sound go out though the picture has come out when DTV is received?
YES
Is the audio signal output from pins(24, 25/ LETFT_M/P),
(28, 29/ RIGH_M/P) of IC4001
(SETTOP_BOX_DECODER). NO
Check IC4001 and its peripheral circuits.
YES
Is the audio signal input to pins(6, 5/ LETFT_M/P), (2, 3/
RIGHT_M/P) of IC4005(OP-AMP)?
NO
Check the line between IC4001 and IC4005.
YES
Is the audio signal sent from pins(7/AIN1L), (1/AIN1R) of
IC4005 to pins(10, 9) of IC3001 (MAIN_MICON)?
NO
Check the line between IC4005 and IC3001.
YES
Refer to “No sound output in all modes”.
No sound from external input devices (1)
Does not the sound of the audio signal input to EXT1(SCART1) go out?
Does not the sound of the audio signal input to EXT2(SCART2) go out?
YES
EXT1
Is the audio signal properly sent to pins(6/AIN3_L) and (2/
AIN3_R) of SCART1(SC1102)? NO
Check the setting of an external input device that connects of
SC1102.
EXT2
Is the audio signal properly sent to pins(6/AIN2_L) and (2/
AIN2_R) of SCART2(SC1101)? NO
Check the setting of an external input device that connects of
SC1101.
YES
EXT1
Is the audio signal properly sent to pins(14/AIN3_L) and
(13/AIN3_R) of IC3001(MAIN_MICON)? NO
Check the line between SC1102 and IC3001.
EXT2
Is the audio signal properly sent to pins(12/AIN2_L) and
(11/AIN2_R) of IC3001(MAIN_MICON)? NO
Check the line between SC1101 and IC3001.
YES
Refer to “No sound output in all modes”.