Hey Everyone, I'm hoping you can help me out in the diagnosing and repair of a Panasonic TH-65PF11UK 65" Professional Plasma Monitor I bought fairly cheap that currently has a vertical black bar on the screen (with some random noise of various colors within that box)
The bar extends from the bottom of the screen to the center (bottom half) and is the exact width of one ribbon cable that connects to a buffer board.
The bottom buffer board that connects to the ribbon is PN: TNPA4625 and the ribbon cable causing the issue is the second one from the left.
I drew a little white box approximately around where the black bar is (the random colors are actually being produced)
I replaced the buffer board earlier today and started the TV, only to hear a pop and smell smoke coming from the new buffer board.
The TV kept running and displayed the same black box + random junk inside the box after the pop occurred (which was as soon as the replays clicked over)
C601 is missing on the new buffer board, however, I'm not certain if that was the pop or not because the burning smell appears to be concentrated closer to the second ribbon connector and a little to the left (where C607, D602, R622 and R623 are) whereas C601 is above the left-most ribbon cable.
It's a huge panel that cost $5000 or so new, however, now I'm stuck as to what I should try next.
I'm not sure if the panel is bad or if something else caused the new board to short out, as the only two connections to other boards are to the central bottom buffer board, and the board that interfaces with all the buffer boards.
It is possible that the capacitor fell off in shipping, as I wasn't looking for damage before I installed the board, or I may have gotten a bad "new" board, however, that it popped and smelled makes me think there are other issues.
The rest of the TV displays an image fine for what it's worth.
-Derek
The bar extends from the bottom of the screen to the center (bottom half) and is the exact width of one ribbon cable that connects to a buffer board.
The bottom buffer board that connects to the ribbon is PN: TNPA4625 and the ribbon cable causing the issue is the second one from the left.
I drew a little white box approximately around where the black bar is (the random colors are actually being produced)
I replaced the buffer board earlier today and started the TV, only to hear a pop and smell smoke coming from the new buffer board.
The TV kept running and displayed the same black box + random junk inside the box after the pop occurred (which was as soon as the replays clicked over)
C601 is missing on the new buffer board, however, I'm not certain if that was the pop or not because the burning smell appears to be concentrated closer to the second ribbon connector and a little to the left (where C607, D602, R622 and R623 are) whereas C601 is above the left-most ribbon cable.
It's a huge panel that cost $5000 or so new, however, now I'm stuck as to what I should try next.
I'm not sure if the panel is bad or if something else caused the new board to short out, as the only two connections to other boards are to the central bottom buffer board, and the board that interfaces with all the buffer boards.
It is possible that the capacitor fell off in shipping, as I wasn't looking for damage before I installed the board, or I may have gotten a bad "new" board, however, that it popped and smelled makes me think there are other issues.
The rest of the TV displays an image fine for what it's worth.
-Derek
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