LG GX500 - Page 84

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4. TROUBLE SHOOTING
GX500 Operational Description Revision A
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Figure 4-17. Speaker
Checking Flow
STAR
T
Input Signal is
High(C705,C706)
?
Output Signal is
High(L703,L704)
?
Replace Main Board
Replace Audio
AMP(U701)
Check Speaker ‘s
Contacts are clear.
Yes
Resolder/Replace
Speaker
No
No
Yes
No
Yes
Assemble
Speaker contact