Re: Panasonic Plasma Horizontal Lines

Thanks for all the information. I finally managed to get those bars to go away. I had to re-seat some of the ribbons 5 or 6 times before the bars would go away. This reminds me of the first generation Nintendo or the Atari consoles where you had the cartridges with the contact points and you sometimes had to insert them 5 or 6 times before the game would load.

With the back off of the TV the original line problem is not surfacing but I don't want to leave the back off because of the voltages and I have young kids so that is a...

I have a Panasonic TC-P50G25 plasma TV which was getting thin horizontal lines that appear after the TV had been on for 15 minutes or so. The first picture attached to this post shows what it looks like.

Tom had said it was either a bad A board or a bad SD/SU board. I found an A board and replaced it but the lines persisted. Then I removed the back cover and hooked the TV up and tried to use a hair dryer to blow hot air on one card at a time to see if I could get the lines to appear quicker which would point to the part that is the culprit. However, with the back off I could not...

Re: A guide to fixing/troubleshooting some common plasma TV problems



Yeah, the original board did the same thing. I timed it twice and it runs without lines for 15 - 20 minutes before the lines start appearing again. If I leave the TV to cool down then the lines will go away but it takes a while to cool down enough for the lines to not appear right away.

How would I heat a part up? Blow a hot hair dryer on it?...

Re: A guide to fixing/troubleshooting some common plasma TV problems



I got a new A board for $30 on eBay with a 30 day warranty and installed it into the TV. I had no lines for about 5 minutes and then they returned so it seems that it is not the A board. If it is both the SU/SD boards then that would seem unlikely that both of them went bad at the exact same time because it has always been the whole TV screen. Any other possibilities?...

Re: A guide to fixing/troubleshooting some common plasma TV problems

I have a 50 inch Panasonic Plasma TV (TC-P50GT25) that has thin horizontal lines going across the entire screen from top to bottom. It happens with all inputs and varies in intensity. Sometimes I can turn it on and watch for 30 minutes or so with no lines but they always reappear. The lines flicker a lot and sometimes they are different colors but most of the time they are black.

I would appreciate any help in diagnosing the issue so that I can try and replace the defective part. The TV is only...