LG U8120 Service Manual page 158

TP Command
-mode =4
-Wtxc=9750,0,1,0
-Syct=10700
-Txgn=1,43
-TFTI=10700
Step1: Check PAM control signal from N2000
Check R16 17
To Check PAM control
signal from Vi nce nne
(WP A REF)
Mean Value
No
2.4V ?
Yes
See the Step 2
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4. TROUBLE SHOOTING
Change the Board
Before Change board,
Check soldering(R1617)