LG GS290 - Page 73

- 74 -
LGE Internal Use Only Copyright © 2010 LG Electronics. Inc. All right reserved.
Only for training and service purposes
4. TROUBLE SHOOTING
GS290 Operational Description Revision B
LG Electronics 75/136 LGE Property
STAR
T
Input Signal is
Good(C364,C365
) ?
Output Signal is
High(C343,C342)
?
Replace Main Board
Replace Audio
AMP(U304)
Check Speaker ‘s
Combination with PCB.
Yes
Connect Speaker
completely.
No
No
Yes
No
Yes
Assemble