Pink screen on Panasonic TH-46PZ850U plasma display

Posted on 2010-01-03
Medium Priority
Last Modified: 2013-11-06
I am the owner of a fourteen month old Panasonic TH-46PZ850U. Unfortuantely, the picture now looks like one is looking through pink glasses. This problem started recently at power on and would go away after an hour or so. That behavior lasted for a few days and now the problem does not go away. However, the image at the very top 10% or so of the screen almost looks normal. Has anyone seen this issue before? I do have a photo of the image if anyone is interested.

I thought that it might be a bad cap or solder joint on the power supply board so I swapped it out and that did not make a difference.

Question by:rprenove
LVL 12

Expert Comment

ID: 26168752
Unfortunately, those symptoms are common with problems with either the logic board or the panel itself.

Expert Comment

ID: 26169149
This is common if the display card is loose. So try to pull it out and set it again firmly.

Expert Comment

ID: 26169359
I 've got a better experience in LCD but perhaps it's the same : when it's pink it's due to the ccfl : cold cathode lighting the screen is failing. a bit hard to change yourself but nothing is impossible.
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Author Comment

ID: 26172434
Which board are you referring to when you say "display board".  It appears that there is a board on each side of the panel that is driving the display.

Expert Comment

ID: 26177534
No, it is inside the box. Outside is screen only. If you are not familiar with it better to approach to local hardware technician to tighten the loose board.

Accepted Solution

rprenove earned 0 total points
ID: 26290021
The problem was resolved by dis-connecting and re-connecting mutiple connectors on the video processing booard.

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