Picture 'Hanging' high contrast

[Yingus]

Hi, I have a 32 inch Sony LCD and recently the picture has seemed a little too bright on light scenes and a little too dark on dark scenes, Also if a still picture or text has been on the screen for a few seconds then you can still see it if you change channel. I am posting a picture with the fault. I have looked around but can't find much info but i assume it will be there TCON/LVDS board or the panel at fault, any info would be very much appreciated, Thank you.

Ignore the wavy lines, That's just the camera picking them up.

[Th3_uN1Qu3]

Re: Picture 'Hanging' high contrast

Tcon most definitely. One of the voltages required to drive the panel (most likely VGH or VGL) has gone missing.

[budm]

Re: Picture 'Hanging' high contrast

Show us the pictures of the T-CON board.

[Yingus]

Re: Picture 'Hanging' high contrast

Got almost all of the board on the picture, Hope this helps.

[Shinju]

Re: Picture 'Hanging' high contrast

Seems to but cut off on the sides, is that the whole board?

[budm]

Re: Picture 'Hanging' high contrast

Check those test points VGMA 1~XX DC voltages.

[Yingus]

Re: Picture 'Hanging' high contrast

I'm assuming you mean the VGAMA points on the top right of the picture.

@Shinju there's hardly anything else to see at the sides so thought i would just get a closer look at the board instead.

[Yingus]

Re: Picture 'Hanging' high contrast

Top left i meant...

[budm]

Re: Picture 'Hanging' high contrast

Yes.

[Yingus]

Re: Picture 'Hanging' high contrast

OK, The readings are:
1 - 4.69
2 - 4.84
6 - 6.98
9 - 7.56
11 - 8.16
12 - 6.21
14 - 7.09
17 - 4.20
22 - 0.34

Hope that helps.

[tom66]

Re: Picture 'Hanging' high contrast

It is bad, another AS15 fault...!

[Yingus]

Re: Picture 'Hanging' high contrast

Thank you kindly for all the comments, Although i already know a little bit about electronics and i love to tinker i have only just started to mess with Tv's so it's very much appreciated of you guys.