Panasonic TH 50PZ80U Transparent Vertical Bar

[jmp906]

I have a 2008 Panasonic Viera TH-50PZ80U. When the TV warms up, a 3 inch transparent yellowish vertical bar appears in a fixed position from top to bottom on the right side of the screen. The bar overlays any video input including the TV's menus. It first appeared with images that have white backgrounds. It now appears with any background. It may disappear for a while if I tap on the chassis. I have re-seated some of the ribbon cables with no effect on the bar. Has anyone else experienced this? Any suggestions on how to diagnose and solve this problem? Thanks much.

[tom66]

Re: Panasonic TH 50PZ80U Transparent Vertical Bar

This will be a loose ribbon but it will be on the bottom of the plasma panel not the side. Have you reseated those ones? Very common issue on these panels.

[jmp906]

Re: Panasonic TH 50PZ80U Transparent Vertical Bar

Thank you, Tom. I did reseat the ribbons that lined up with the bar without success. I will have to try to reseat all of them.

[jmp906]

Re: Panasonic TH 50PZ80U Transparent Vertical Bar

I reseated the ribbon cable but the transparent vertical bar still appears. Removing the ribbon cable replaces video with static in the bar. Is the next step to replace the C1 buffer board? Is there any way to determine if the problem is with the board or the components in the ribbon cable?

[tom66]

Re: Panasonic TH 50PZ80U Transparent Vertical Bar

Which board does the bar cover, C1, C2, ...?
Also, can you provide a picture of the fault?

[wreksta]

Re: Panasonic TH 50PZ80U Transparent Vertical Bar

His buffers are clip type forget what i mentioned lol

[jmp906]

Re: Panasonic TH 50PZ80U Transparent Vertical Bar

Thank you. I posted a picture of the fault. Had to start a new thread "Panasonic TH 50PZ80U Transparent Vertical Bar-image"

[jmp906]

Re: Panasonic TH 50PZ80U Transparent Vertical Bar

Image of transparent vertical yellow line. This line appears after the TV is on for 45 minutes.

[freakaftr8]

Re: Panasonic TH 50PZ80U Transparent Vertical Bar

Had same tv with same issue in the left side if the screen. Turned out to be a bad chip on the ribbon of the panel. Eventually it got to the point where it caused a sos shutdown. Had to eventually remove the sos on the ss board with owners blessing. It kept going.