Vestel 50 inch LED backlight, Sound, No picture.

[Diah]

Re: Vestel 50 inch LED backlight, Sound, No picture.

Tcon ribbon connected
VGH 0.10V
VGL 0.00V
VSS 0.10V
AVDD 0.27V
AGIN 0.00

Tcon ribbon disconnected

VGH 1.21V
VGL 0.05V
VSS 0.00V
AVDD 1.31V
AGIN 0.00V
Any reason why theres nothing on the screen when you disconnect one ribbon at a time?
Normally you get a white screen each side

Thanks

LCD function depend on T-CON pulse signal not voltage,, if there are no pulse nothings will displaying on the screen