LG 55GA6400 Power Ok, No backlight, No image.

[alfredomfr1]

TV LG 55GA6400
No backlight, no image on screen (checked with a flashlight).
Good: 12v ok, 24v ok, Pwr-On: 3.3v, Main Capacitor: 396v
Bad: A-Dim: 0v, P-Dim: 0v, Drv-On: 0v

[budm]

Re: LG 55GA6400 Power Ok, No backlight, No image.

Main board is not sending the command signals for the backlights circuit.

[alfredomfr1]

Re: LG 55GA6400 Power Ok, No backlight, No image.

Main Board defective ?

[budm]

Re: LG 55GA6400 Power Ok, No backlight, No image.

That is what it looks like.