Back again... made it almost two years since the last repair. (https://www.badcaps.net/forum/showthread.php?t=30442) Have had plenty of beers in your honor since then, tw2005, if you're paying attention.
Can't find another SN board and I really want this plasma to last another ten years, but I'll be damned if I haven't killed this board.
Started with a solid red LED after the set quit working and when I hit the power button it turned to 14 blinks. Immediately took the set apart and found a short on VSUS. SN2 shows dead short. Lifted the legs on the four IGBT's and the short "appeared" to have disappeared. I say appeared, cuz i'm still a novice and may have made an error - in all honesty, i don't remember how i came to that conclusion. Installed four new IGBT's plus another at Q622 which was showing a short. The diodes and resistors that come with the repair kits are testing just fine.
With five new transistors installed I am showing dead short at SN2, and do not want to give up on this set. TW if you're around, plz give me an idea of how to proceed. (I've already gone through our last posting and still can't find a way forward.)
Thanks!
Can't find another SN board and I really want this plasma to last another ten years, but I'll be damned if I haven't killed this board.
Started with a solid red LED after the set quit working and when I hit the power button it turned to 14 blinks. Immediately took the set apart and found a short on VSUS. SN2 shows dead short. Lifted the legs on the four IGBT's and the short "appeared" to have disappeared. I say appeared, cuz i'm still a novice and may have made an error - in all honesty, i don't remember how i came to that conclusion. Installed four new IGBT's plus another at Q622 which was showing a short. The diodes and resistors that come with the repair kits are testing just fine.
With five new transistors installed I am showing dead short at SN2, and do not want to give up on this set. TW if you're around, plz give me an idea of how to proceed. (I've already gone through our last posting and still can't find a way forward.)
Thanks!
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