LG KP500 - Page 79

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5. Trouble shooting
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Input Signal is
High(TP1 C206,
TP2 C207) ?
Output Signal is
High(TP3 C212,
TP4C213)
?
Re
p
lace Main Board
Replace Audio
A
MP
(
U200
)
.
Check Speaker ís
Contacts are clear.
Yes
Resolder/Replace
Speaker
No
N
o
Y
es
N
o
Yes
Signal is
High(L400,
L40
3)?
N
o
Re
p
lace L400
,
L403
Yes
Assemble
Speaker contact
L403
L400