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Haier Manuals
Color television
LC22KW1
Service manual
Main Board Failure Check - Haier LC22KW1 Service Manual
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9-3. Main board failure check
State: No Sound
No Sound
(All Mode)
Check the input
Source
Pass
Check the input/output
Of IC U13 of Main B/D
Pass
Check the input/output
Of IC U55 of Main B/D
Pass
Check the input/output
Of IC U2 of Main B/D
Pass
Check the Speaker
Pass
Check the Sperker
wire
Fail
Fail
Fail
Fail
Fail
45
Change Source input
Re-soldering or change
IC U13
Re-soldering or change
IC U55
Re-soldering or change
IC U2
Change the Speaker
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This manual is also suitable for:
Hlc22kw1b
Mtk5380lc
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