My TV is a Panasonic P55VT50e.
My TV has the yellow blob issue (which isn't that bad, but I was recently suffering intensely under it). So I tried to unscrew the SC board to see what happens when I lift the board from the chassis a little bit. Then I heard a 'poof'. And immediately knew I blew the SC board and started measuring. And yes there was a full short circuit on the SC board (at this point I did not even look at the amount of blinks). I even found the shorted MOSFET, but I thought it would be best to order a new(2nd hand) SC board.
Then I replaced the SC board as a whole, but no, it did not help. Then I saw the 8 blinks. (The SC board did arrive with a broken coil on the bottom, and i took the one from the old board and replaced it, and the coil was not in the box, so it happened before he put it in the box)
If it did blink 7 times before, I do not know dumbly enough.
But besides this stupid action, I did also not notice the fact that the chassis is also functioning as a ground (–) for the other prints as well. Which probably wacked more boards, because of some probable funny current flows
?
As 8 blinks stand for a probable defective SS board, I ordered a new SS board(it’s not yet here). This was before I found this forum and some flow charts on how to troubleshoot the 50ST50, which I presume is almost the same in many ways.
So I started out at the 8 blinks section, and found out that when I disconnected the SS33 (flatcable to to the SS board) the blinks would change to 6. And the chart says, replace the A board.
But when I disconnect the flatcable to the SC board, the TV powers up (even the fans start to blow) and eventually turn to 6 blinks.
Is there more that I can check, before I order the ‘A board’?
(also when i disconnect the VSUS from the SC board while all flatcables are connected, i'm getting a nice 7 blinks)
My TV has the yellow blob issue (which isn't that bad, but I was recently suffering intensely under it). So I tried to unscrew the SC board to see what happens when I lift the board from the chassis a little bit. Then I heard a 'poof'. And immediately knew I blew the SC board and started measuring. And yes there was a full short circuit on the SC board (at this point I did not even look at the amount of blinks). I even found the shorted MOSFET, but I thought it would be best to order a new(2nd hand) SC board.
Then I replaced the SC board as a whole, but no, it did not help. Then I saw the 8 blinks. (The SC board did arrive with a broken coil on the bottom, and i took the one from the old board and replaced it, and the coil was not in the box, so it happened before he put it in the box)
If it did blink 7 times before, I do not know dumbly enough.
But besides this stupid action, I did also not notice the fact that the chassis is also functioning as a ground (–) for the other prints as well. Which probably wacked more boards, because of some probable funny current flows
?As 8 blinks stand for a probable defective SS board, I ordered a new SS board(it’s not yet here). This was before I found this forum and some flow charts on how to troubleshoot the 50ST50, which I presume is almost the same in many ways.
So I started out at the 8 blinks section, and found out that when I disconnected the SS33 (flatcable to to the SS board) the blinks would change to 6. And the chart says, replace the A board.
But when I disconnect the flatcable to the SC board, the TV powers up (even the fans start to blow) and eventually turn to 6 blinks.
Is there more that I can check, before I order the ‘A board’?
(also when i disconnect the VSUS from the SC board while all flatcables are connected, i'm getting a nice 7 blinks)
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