Ns50d40sna14--suspect faulty panel

[cheech3629]

Everything is working except for the picture. I have tested for power at the t-con and there is 12v on both sides of the fuse. I have tested the first pin of the ribbon cable going to the panel and there is 12v there as well.
I have doing a lot of reading on here but i need to make sure this is definitely a bad panel. I have three sets doing the exact thing and i have only been repairing these for a short time.
any help would be appreciated.

[dskall]

Re: Ns50d40sna14--suspect faulty panel

You might look at this thread https://www.badcaps.net/forum/showth...ht=gamma+check

[sugar_ray]

Re: Ns50d40sna14--suspect faulty panel

Have you tried the flashlight trick? Placing the tv in a dark room and while the set is on hold the flashlight up to the panel at an angle to see if there is any motion going on?

If so you'd be looking at a backlight inverter, Burnt out LED strip or tcon itself

[cheech3629]

Re: Ns50d40sna14--suspect faulty panel

the backlights are working fine , you can see the whole screen lightly glow.if i unplug the t-con while the set is on there isn't any sign of lines, flickering or anything noticeable on the screen. the audio is fine the different hdmi ports are working.

[dskall]

Re: Ns50d40sna14--suspect faulty panel

Lots of voltages to be checked on t-con. Plug your voltages into spreadsheet from my last post may tell you if t-con is good

[CapLeaker]

Re: Ns50d40sna14--suspect faulty panel

Look at the left side of the Tcon. There are a bunch of voltage regulators etc on there.

[budm]

Re: Ns50d40sna14--suspect faulty panel

Beside checking the Voltages of the regulator ICs, there are many Voltage test points on the board. IE. VGH, VGL, V3D3, etc.