42LG5000 panel ot Tcon fault ?

[diif]

My friend has given me his 42LG5000 to look at.
From his description i thought it was a gamma fault but i don't think it is.
Image is kind of dark in the middle to the right with some image retention and a slow refresh rate in this bit.
I replaced the gamma chip anyway, just wondering if it will be cured by a new Tcon or if its panel failure. Thank you.

AVDD1 15.05v
VCOMF 6.00v
VCC 6.00v
VCOM2 6.00v
COM2 6.00v

[Moreno83]

Re: 42LG5000 panel ot Tcon fault ?

I have the same symptoms on a philips lcd , black area with a washed out screen. When i lift the lcd the fault disappears , its always on a cold start. So im guessing its a panel problem. Can you try and "squeeze" the housing? Maybe bent it a little and see if it changes.

[ReeceyBurger123]

Re: 42LG5000 panel ot Tcon fault ?

Common issue on these Panels is the Tab bond in the top left hand corner failing which causes either half or the whole screen to mess up. Take the frame off and check the Tab bonds.