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Sharp LC-42SB55E Service Manual

Sharp LC-42SB55E
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2008-03-14
LC-26SB25E/S/RU, LC-32SB25E/S/RU, LC-42SB55E/S/RU
43
The audio signal is not output (4)
No audio signal output from SPDIF_OUTPUT terminal.
TEREMINAL UNIT:
NO
The audio signal is not output (5)
No sound from HEADPHONE_OUTPUT terminal.
MINI AV_UNIT:
YES
YES
YES
Check IC U400 and its peripheral circuits.
Is ASPDIF audio signal output from pin (B22) of IC U400 to pin (6)
of connector CN553?
YES
Check the connection to SPDIF_OUT and external devices.
Is the audio signal output from IC U601 to pin (2) (HPOUTL) and
pin (3) (HPOUTR) of headphone terminal CN602?
Is the HPDET signal input into pin (C20) of IC U400 from pin (7) o
f
a headphone terminal (CN602)?
NO
Check the connection to CN602 and external headphone is plug
in well.
NO
Check the line between IC U601 and CN602.
Check IC U400 and its peripheral circuits.
Is the audio signal output from IC U400 of pin (F26) (AL1) and pin
(G25) (AR1) sent to pin (2)(VIN1) and pin (6)(VIN2) of IC U601?
NO
Check the line between IC U400 and IC U601.

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Sharp LC-42SB55E Specifications

General IconGeneral
BrandSharp
ModelLC-42SB55E
CategoryLCD TV
LanguageEnglish

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