LG 32LG710H Service Manual page 44

No OSD Trouble Shooting guide
Check P400 All
Voltage Level (5V, 12V, 16V)
Check Q401 output
Voltage(12V)
Check LVDS Cable
Check LCD Module
Control board
Copyright ⓒ 2009 LG Electronics. Inc. All right reserved.
Only for training and service purposes
N Check power connector and
RL_ON signal OK ?
Check Q401 application circuit
N
or replace Q401
Y
N
Replace Cable
Y
Y
Replace Power board
LGE Internal Use Only