Panasonic Plasma Intermittent Screen Problem

[jkopaczewski]

Been having this problem with my Panasonic Plasma TH-50PH9UK for several months now, but over the last month it has become more frequent.
Seeing distorted horizontal blue and sometimes red lines. Also the screen is starting to go black from the bottom up.
The issue would sometimes happen about 30 minutes after the TV was on and then go away after a while and not re-appear for weeks. Now it happens almost everyday.
Unplugged everything from the wall and that "fixed" the problem, but only for a few minutes.

Have isolated inputs and the problem is certainly the TV.

Thinking this might be a main control board issue, but looking for more experienced input.

Thanks in advance.

[ReeceyBurger123]

Re: Panasonic Plasma Intermittent Screen Problem

Possibly a lose Lvds cable have you took the back off ?

[jkopaczewski]

Re: Panasonic Plasma Intermittent Screen Problem

Haven't taken the back off yet. Will do that tonight. Thanks.

[jkopaczewski]

Re: Panasonic Plasma Intermittent Screen Problem

Just opened it up. The cable did not look loose, but I re-seated it anyways.
Turned on the TV while having the back off and saw a quick flicker of the problem, but haven't seen any other problems.
Should I just replace the main logic board?

Should also note, when the distortion appears it is moving all about the screen, but just a static image.

[ReeceyBurger123]

Re: Panasonic Plasma Intermittent Screen Problem

Turn the tv on and start messing with the cables to see if the glitch appears.

[jkopaczewski]

Re: Panasonic Plasma Intermittent Screen Problem

The problem appear when I messed with a cable attached to the main logic board. Re-seated the cable in the header and it's been working great.
Thanks again.

Almost bought a new TV. Glad I found this forum.
Now I can start saving for an OLED in a few years.

[ReeceyBurger123]

Re: Panasonic Plasma Intermittent Screen Problem

No worries nice fix Oled are great but they cant beat a good old Plasma like this buddy