Sharp LC-19SH7E/RU, Руководство по обслуживанию, Страница: 47 / 267

2008-03-14
LC-19SH7E/RU, LC-26SH7E/RU, LC-32SH7E/RU, LC-42SH7E/RU
47
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?
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 DIF signal output from pin (20) and pin (21) of TUNER
(TU201)?
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
(2) (SCT1_AUR_IN) of SCART1(CN500)? Check the setting of an external input device that connects of
CN500.
NO
Is the audio signal properly sent to pin (44) (SC1_LIN) and pin (43)
(SC1_RIN) of IC U605?
NO
Check the line between CN500 and IC U605.
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 CN557?
NO
Check the connection to CN557 and the external input device.
Refer to
“
No sound output in all modes
”
.
Is the audio signal properly sent to pin (50) (AV1_LIN) and pin (49)
(AV1_RIN) of IC U605? NO Check the line between CN557 and IC U605.
Is the DIF signal sent to pin (R25) and pin (T25) of IC U400?
NO
Check IC U400 its peripheral circuits.