Hello:
I have a Panasonic TC-P50G20 Plasma TV. It suddenly would not turn on and went into "locked mode" with a solid red LED on the front panel and would not respond to any inputs with no picture. I got some trouble shooting flow charts and ran through them unplugging the SC and SS boards and then P35 connector but still the TV would go into "locked mode" (Solid Red LED, No blink codes, no picture, no response to any inputs remote or on TV). Originally this led me to believe it was the "P" board but I got another one with same result so I did some more checking and now I believe the most likely problem is the "A" board. This was confirmed by several TV repair techs I have talked to.
During all of this for some reason I tried turning on TV (goes into lock mode) then holding down power button until it "resets" with relay click and LED goes out and then turning on again right away and repeated the process and sudden the TV turned on!
It will stay on and work perfectly for as long as I leave it on (many hours even) but if I turn it off it will not turn on again unless I go through the "turn on/ reset / turn on" cycle several times... sometimes it take 2-3 cycles sometimes over 8.
I have 2 questions:
1. Does this sound like an "A" board problem?
2. If so since it "almost" works are there any components on the "A" board that I can test or replace to see if I can get it to work rather than buying a whole new board?
The "A" board number is TNPH0834 "AE"
I have not found much on the forums about "no blink code" problems. Thanks you for your help
I have a Panasonic TC-P50G20 Plasma TV. It suddenly would not turn on and went into "locked mode" with a solid red LED on the front panel and would not respond to any inputs with no picture. I got some trouble shooting flow charts and ran through them unplugging the SC and SS boards and then P35 connector but still the TV would go into "locked mode" (Solid Red LED, No blink codes, no picture, no response to any inputs remote or on TV). Originally this led me to believe it was the "P" board but I got another one with same result so I did some more checking and now I believe the most likely problem is the "A" board. This was confirmed by several TV repair techs I have talked to.
During all of this for some reason I tried turning on TV (goes into lock mode) then holding down power button until it "resets" with relay click and LED goes out and then turning on again right away and repeated the process and sudden the TV turned on!
It will stay on and work perfectly for as long as I leave it on (many hours even) but if I turn it off it will not turn on again unless I go through the "turn on/ reset / turn on" cycle several times... sometimes it take 2-3 cycles sometimes over 8.
I have 2 questions:
1. Does this sound like an "A" board problem?
2. If so since it "almost" works are there any components on the "A" board that I can test or replace to see if I can get it to work rather than buying a whole new board?
The "A" board number is TNPH0834 "AE"
I have not found much on the forums about "no blink code" problems. Thanks you for your help
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