LG U8110 Service Manual page 168

Check TP1201,TP1202,TP1203
Check if there is any major difference.
Refer to left side of Figure 4-39
Check R1333,C1223.
Check if there is any major difference.
Refer to right side of Figure 4-39
Control signal is OK.
See next page to check.
Check the short status between TP1201~TP1203
No
Simiar?
Yes
Check voltage of L1120,L1200,L1202,R1335
No
Similar?
Yes
- 169 -
4. TROUBLE SHOOTING
No
Short?
Yes
Change the board
No
VCCA= 2.7V?
Yes
Resoldering LPF block
Redownload SW
Resoldering VCCA block
(L1120,L1200,L1202,R1335)