LG 26LG3000 white screen problem

[manoftheyear]

Re: LG 26LG3000 white screen problem

Thanks. Will try and find one from some junk boards.

There's still the low voltage on t-con main rail problem, probably gonna need the AO4449 mosfet replaced.

[mlwray]

Re: LG 26LG3000 white screen problem

Hi
Im having a similar problem, white screen of death.

I have measured the voltages to the T Con and they seem correct.

I have taken resistance measurements with respect to ground:

VDD = 34.7
VDA = 2.39K
VGHP = 1.4M falling
VGH = 600K rising
DP1 = measured ok using multimeter diode test function
DP3 = 39.4 one side and 0 ohms the other
CP42= 34.9
CP35 = 34.9
CP36 = 34.9

I am suspecting it may be DP3 but do not want to jump to conclusions without consulting the experts first.

Any help on this matter would be much appreciated.

[Th3_uN1Qu3]

Re: LG 26LG3000 white screen problem

Plug power and signal to your monitor and measure some voltages on the tcon, at the points where you measured resistance.