TXP50V10E dying horizontal pixel line problem

[Synergi]

Hello badcaps.net community,

this actually my first visit of this forum and i need your help with my Panasonic Plasma screen. It's a TXP50V10E. I bought it back in 2009. It was once in repair at the panasonic service center in 2012. They had to replace the RFKBX0681A-M PC Board W/Component because it didn't turned on.

Now 1 year later I have another problem but I'm out of the garantie. So i have to DIY.

So here's the explainaton of the new problem:

When i turn on the screen, i have weird Problems with many pixels. When i get heated up, after like about 10 mins, the problem has gone mostly. Just 1 -2 lines left which have slight problems. The pictures will explain it best.















Here u can see the changes from minute to minute.

Can this be a heating problem so the A Board got crashed a bit or sth like that or what actually could cause this.

I have done a Panasonic Self Check and it says everything OK.

The screen has about 15000 Hours of usage read out of Panasonic Service menu.

Can anyone help me a bit? i can post a screen of the opened screen too if it helps.

tia Synergi

[tw2005]

Re: TXP50V10E dying horizontal pixel line problem

So does it go into service mode and you can run the pattern tests to see if it'd panel or A-board related?

[Synergi]

Re: TXP50V10E dying horizontal pixel line problem

Yeah i can run the pattern test, and when the screen is warmed up everything looks fine. u want some pictures of the pattern test pictures?

[freakaftr8]

Re: TXP50V10E dying horizontal pixel line problem

I highly doubt it's a panel problem because if it were a panel problem it would be like that constantly not as it warms up it goes away I'm thinking that you need to pull the back of an Apply heat to the a board with a heat gun or a hair dryer and see if the problem goes away immediately when its cold if it does I suspect the a board to be bad

[Synergi]

Re: TXP50V10E dying horizontal pixel line problem

Can u guys may tell me where actually the a board is?

Here is a picture of the opened screen.



Is it the on the right with the receiver on?

EDIT:

Does someone of u guys may know what they actually replaced at the service center? Because if it is the broken component i would stilll have guruantee on this part. I can just say from the log they gave me that they repaired the following part: RFKBX0681A-M PC BOARD W/COMPONENT

[freakaftr8]

Re: TXP50V10E dying horizontal pixel line problem

Think there referring to the big bottom right board where all the inputs go. Im talking about applying heat to the bottom center board. The square one. Its considered a control board. Try that ine. If no change try the input board.

[Synergi]

Re: TXP50V10E dying horizontal pixel line problem

I tested it with a hair dryer. (no heating gun)

When heating up the middle small square platine nothing changed. when i heated up the input board picture got better.

[freakaftr8]

Re: TXP50V10E dying horizontal pixel line problem

Like as in lines went away immediately?

[Synergi]

Re: TXP50V10E dying horizontal pixel line problem

Not immediatly but way more fast then waiting to heat up on herself. I just took 1-2 minutes.

[freakaftr8]

Re: TXP50V10E dying horizontal pixel line problem

Either that board is malfunctioning or its something in the vicinity of that board. Im im coing to step out on a limb and say that may be the same board that was replaced by the company. So it may very well be under some warranty still.

[Synergi]

Re: TXP50V10E dying horizontal pixel line problem

that would be awesome but the question is how can i determine that?

[tom66]

Re: TXP50V10E dying horizontal pixel line problem

The part "RFKBX0681A" is from a Panasonic DVD player, which is rather odd? Is that definitely from the right receipt?

[Synergi]

Re: TXP50V10E dying horizontal pixel line problem

Oh shit damn it. Then i failed because i kept the wrong paper. Yes the DVD Player was too once in repair at the same time at panasonic service center. And i thought i had the one of the TV. Shit so i can't look up which component they changed.

I will try call them after christmas and may they still have it in their database, and i will talk with them directly about this problem.

But as it seems now u guys would may say that the input board is broken.

So a small side question of me is if they do not handle this guruantee which i highly doubt, where should i try to buy one new and what will it cost if someone know. Should i try buying one directly from the panasonic service center at my place?

tia

[freakaftr8]

Re: TXP50V10E dying horizontal pixel line problem

Well if you want to pay an arm and a leg go panasonic. If you want to do this inexpensive go ebay. Just note the part number on the board including revision numbers and model number of your tv.

[freakaftr8]

Re: TXP50V10E dying horizontal pixel line problem

oh and another question I noticed on your pictures there seems to be a white square in the upper left hand corner is that actually showing up on the screen or is that just a reflection?

[Synergi]

Re: TXP50V10E dying horizontal pixel line problem

I will try buy it anywhere cheap x) The white square is just the text of the tv saying HDMI is selected. I don't know why its that shiny on the pictures. Propably because of the bad camera.