Sharp LC-42SB55E Service Manual

LC-26SB25E/S/RU, LC-32SB25E/S/RU, LC-42SB55E/S/RU
40
No sound from external input devices (1)
↓
Does not the sound of the audio signal input to SCART1 go out?
Does not the sound of the audio signal input to SCART2 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
No sound from external input devices (3)
↓
Does not the sound of the audio signal input to AV3(Composite/Y/C) go out?
MAIN UNIT: ↓
↓YES
↓YES
Is the audio signal properly sent to pin (6) (SCT1_AUL_IN) and pin
(2) (SCT1_AUR_IN) of SCART1(CN500)?
Is the audio signal properly sent to pin (6) (SCT2_AUL_IN) and pin
(2) (SCT2_AUR_IN) of SCART2(CN501)?
Check the setting of an external input device that connects o
f
CN500.
NO
Check the setting of an external input device that connects o
f
CN501.
NO
Is the audio signal properly sent to pin (J25) (SC1_LIN) and pin
(J26) (SC1_RIN) of IC U400?
Is the audio signal properly sent to pin (J23) (SC2_LIN) and pin
(J24) (SC2_RIN) of IC U400?
NO
NO
Check the line between CN500 and IC U400.
Check the line between CN501 and IC U400.
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 CN553?
NO
Check the connection to CN553 and the external input device.
Refer to “No sound output in all modes”.
Is the audio signal properly sent to pin (K23) (AV1_LIN) and pin
(K24) (AV1_RIN) of IC U400?
NO
Check the line between CN553 and IC U400.
Is the audio signal properly sent to pin (4) (AV3_AudioLIN) and pin
(6) (AV3_AudioRIN) of CN650?
NO
Check the connection to CN650 and the external input device.
Refer to “No sound output in all modes”.
Is the audio signal properly sent to pin (L23) (SIDE_LIN) and pin
(L24) (SIDE_RIN) of IC U400?
NO
Check the line between CN650 and IC U400.

Sharp LC-42SB55E Specifications

General

Brand	Sharp
Model	LC-42SB55E
Category	LCD TV
Language	English