Samsung LN32A450C1DXZA Panel Problem?

[kevinm34232]

Doesn't have the typical vertical lines but these horizontal bars and other abnormalities.

Did the typical reseating of LVDS and ribbon cables, and also pressed on tab bonds with no change.

Could this be anything other than the panel? Thanks!

[budm]

Re: Samsung LN32A450C1DXZA Panel Problem?

It looks similar to the one that I fix.
https://www.badcaps.net/forum/showth...P8D#post295889

http://s807.photobucket.com/user/bud...82691767857023

[kevinm34232]

Re: Samsung LN32A450C1DXZA Panel Problem?

You're right Bud it does look very similar. Nice fix BTW!

My board is different design but has same components.

Are those replacement diodes available or should I do what you did?

[budm]

Re: Samsung LN32A450C1DXZA Panel Problem?

I do not know about the exact repalcement Diode,I just use the 1N4148/914 signal diodes, so far the TV is still working.
Did you try heating and cooling yet to see if acts the same way as mine?

[kevinm34232]

Re: Samsung LN32A450C1DXZA Panel Problem?

I freeze sprayed panel earlier and over t-con and main board but did not see any changes, Ill have to try to just do that part. Also my TV does this when turned on from cold, and then just seems get a little worse.

[kevinm34232]

Re: Samsung LN32A450C1DXZA Panel Problem?

I froze those diodes, turned on and pic was the same, then lost video completely for a couple minutes, then it came back on the same.

Also each of the 6 diodes tested good on the multimeter.

Wonder if I should gamble on a t-con board, everytime I do Im wrong though!

[kevinm34232]

Re: Samsung LN32A450C1DXZA Panel Problem?

FYI replaced T-Con board and it was not the fault in this case so almost positive bad panel.

[tom66]

Re: Samsung LN32A450C1DXZA Panel Problem?

Probably tab bonds.

[budm]

Re: Samsung LN32A450C1DXZA Panel Problem?

The one that I fixed, at first I thought it was the bad panel so I put it away for a couple months, then I decided to work on it again and found the bad Diodes.
It is not real easy to figure out 100% if the problem is caused by T-CON or panel.