LG LPA-735 Service Manual page 12

LCD MODE CONT SIGNAL?
ALL "LOW"(MORMAL CONDITION)?
YES
TFT LCD PRESSURE VOLTAGE?
+15V,- 14.5V,+5V
YES
TFT LCD NORMAL?
YES
COLOR ADJUSTING NORMAL?
YES
EACH CONNECTOR?
YES
END
NO
MAIN B/D Check
NO
Power source and D2,D3,U4 Check
NO
Replace
NO
Readjust as adjustement standard
NO
Replace and Reassemble
NO
Replace
3-4