Re: Panasonic Plasma TC-P50GT30 7 blinks SC board shorted

Yes, I guess I willfully ignored the mentions of others replacing the screws. The original ones looked bigger like they would make better contact. I hadn't considered the added advantage of a lock washer that the new screws offered.

So, it was replacing the IGBTs (and maybe the diodes) plus improving the grounds that ultimately fixed my issue. The other parts that came with the kit (tiny IC, small transistor, and 6 tiny 15 ohm resistors) didn't come into play for my repair. No parts that weren't included in...

Re: Panasonic Plasma TC-P50GT30 7 blinks SC board shorted

An overdue follow-up to my 10/26 post:
I took off the IGBTs that I had soldered on in my original repair as all 6 were blown again. I also took off their accompanying diodes even though they tested OK with a meter, I figured they're low hanging fruit so why not change them out.

So, when my second repair kit from shop jimmy arrived, I replaced the 6 IGBTs and 2 diodes. I didn't bother with the 6 R15 resistors as the originals tested fine and were likely beyond my soldering expertise and the two other smaller...

Re: Panasonic Plasma TC-P50GT30 7 blinks SC board shorted

So I replaced the 6 shorted IGBTs, Q401,2, & 3, and Q421, 2, & 3 on the SC board.
I put the board back in and tested per t-shooting procedure and it looked like SU and SD were good. I powered up the TV and it worked like a champ. Then a day and a half later, it blew up again - all 6 IGBTs shorted again.

Does anyone know why this might be happening? Which component(s) could be causing my IGBTs to be blowing?

Re: ModusLink PTS not accepting new orders

Are there any competitors to moduslink that anyone can recommend?
Thanks.

Re: Panasonic Plasma TC-P50GT30 7 blinks SC board shorted

Yes, I put a meter on the buffers and tested per a related post. My meter isn't the best but I didn't see any low values that would indicate a failure.

When I'm ready, I'll put the repaired SC board back in while still isolating the buffers and go through the diagnostics to make sure the buffers are good.

Re: Panasonic Plasma TC-P50GT30 7 blinks SC board shorted

I have the same issue with 6 blown IGBTs on my TC-P50GT30 SC board. I'm not sure if any ICs are also fried. The SD and SU boards seem OK. I'm not the most experienced solderer but I've done some over the years. Is there solder that I need to melt underneath the IGBTs, or just the pins? If I have to melt underneath, is there a special iron I need?
Thanks.

-It failed with a very loud bang and flash.

Re: New Members - please post your introductions here

Hi, I'm Dan from just outside of Boston, and last night my Panasonic TCP50GT30 blew up. I joined this forum to gain insight into fixing it on the cheap. Looks like lots of great info here.