Calling all Plasma TV Experts, LG 50PG25 Problems

[Azrial]

I picked up this LG Plasma TV LG 50PG25 (50PG60-UA) for free from a good friend who had thrown it away because the lower part of the screen had a bit of a "jitter" in it. Not really enough to make it un-viewable, but, well, he is richer and pickier then me.

Anyway, I have this job where I do patrol work in the deep ghetto, where they love to steal big screens so I took it to work. I live there half the week so I thought that it would be a great addition to my office to watch videos, Internet programming and DVDs off my Panasonic CF-31 Toughbook, that I have upgraded a bit...

So, at first, it works pretty good when it get warm, but the picture will gradually become quite grainy and color distorted. I made a video of this, and would like you to take a look to give me your opinions on which board(s) are the most likely to be bad.

I have my own pet theories from what I have been able to learn in the last few weeks, but am not ready to spend money without some more learned opinions.

http://vid246.photobucket.com/albums...psjmmrzbrp.mp4

So, what do you think?

[Azrial]

Re: Calling all Plasma TV Experts, LG 50PG25 Problems

Guys I have got 73 views and no one has a clue? Is the problem that perplexing, or have I failed to provide enough info for anyone to offer a theory.

[RCA2000]

Re: Calling all Plasma TV Experts, LG 50PG25 Problems

Well...seeing the video with the still and seeing how GOOD it looks...that just about RULES out ANY scan board issue---I would think.

SO...I would have to say a signal board issue...UNLESS..you are getting a dirty suppl of some sort to the signal board...but I CANNOT see how that would not effect it in ANY mode... ALMOST looks like it cannot "sync" with the video... chroma-- wise especially.

[Azrial]

Re: Calling all Plasma TV Experts, LG 50PG25 Problems

Thanks for stepping up to the plate RCA2000! But, you are going to dumb in down for me a bit, this is my first dance with bigscreens. Which boards are you suggesting, the "main board" with the A/V, HDMI, RCA and S-Video jacks?

I was kind of thinking that it was the S-Board....

[Nick's Tvs]

Re: Calling all Plasma TV Experts, LG 50PG25 Problems

If it seems like the picture is getting grainy as the tv warms up, it is possible that you have a cracked solder joint somewhere on an inductor possibly either Y or Z sustain. Check the back side of those for cracked joints.

[Azrial]

Re: Calling all Plasma TV Experts, LG 50PG25 Problems

If it seems like the picture is getting grainy as the tv warms up...

Yep, that is exactly what it does, but because of this inability to handle a moving image I am thinking now that it is more then one problem. : (

THANKS!