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 get the lines to appear much at all.
So, while I had the cover off I took off all the ribbons and connectors on the SD/SU/SC cards and blew compressed air to clean things out and then reconnected everything. Now, I have a different problem. Now I have consistent horizontal bands going across the screen all of the time. They appear right away unlike the original lines. The second picture attached shows what the bands look like.
I attempted to take the ribbons off and re-hook them up to try and get rid of the bands but have not been successful. So I have a couple questions...
1.) Does this still look like an SD/SU card issue?
2.) If I need to replace the SD/SU cards, do I also need to replace the SC card as well? I read in the Panasonic manual that bad SD/SU cards can mess up the SC card so the SC card should be replaced at the same time as the SD/SU card.
3.) Could this be a ribbon issue as opposed to one of boards?
Thanks for the help.
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 get the lines to appear much at all.
So, while I had the cover off I took off all the ribbons and connectors on the SD/SU/SC cards and blew compressed air to clean things out and then reconnected everything. Now, I have a different problem. Now I have consistent horizontal bands going across the screen all of the time. They appear right away unlike the original lines. The second picture attached shows what the bands look like.
I attempted to take the ribbons off and re-hook them up to try and get rid of the bands but have not been successful. So I have a couple questions...
1.) Does this still look like an SD/SU card issue?
2.) If I need to replace the SD/SU cards, do I also need to replace the SC card as well? I read in the Panasonic manual that bad SD/SU cards can mess up the SC card so the SC card should be replaced at the same time as the SD/SU card.
3.) Could this be a ribbon issue as opposed to one of boards?
Thanks for the help.
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