Picture ok, all source no sound
Check R701 and
R712 ok?
NO
NO
NO
Check C701
and C709 ok?
OK?
Replace R706.
NO
Check speaker
cables or speaker
NO
32
Replace R701
or R712.
Replace C701
or C709.
Check U701
pin8 +5V
Check C705,C707,
C715 and C730
Replace C705 C707,
C715 or C730
Check EC704
and EC705
Replace EC704
or EC705.
Содержание 22PFL5557/V7
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Страница 33: ...8 PCB Layout TOP 33 ...
Страница 34: ...BUTTOM 34 ...