Panasonic Viera TX-P42VT30E TNPA5330 blown

[WildPuppy]

Re: Panasonic Viera TX-P42VT30E TNPA5330 blown

I know, but right now I (or the authorized service) don't have it.
I'll order one to have on-hand, just in case...

[Moreno83]

Re: Panasonic Viera TX-P42VT30E TNPA5330 blown

You could buy a SS board and use those parts. These boards have all the parts you need. They are cheap because they never fail or buy FGD4536TM from ebay.

[WildPuppy]

Re: Panasonic Viera TX-P42VT30E TNPA5330 blown

I still have the order of FGD's placed, but they will arrive withing 2-3 weeks...
I thought about buying SS boards, but I think I need two to cover all 6 FETs. I am not sure right now.

[Moreno83]

Re: Panasonic Viera TX-P42VT30E TNPA5330 blown

I will check to see how many are on the SS board when i get home. I got a few of these boards.

[Moreno83]

Re: Panasonic Viera TX-P42VT30E TNPA5330 blown

I googled on TNPA5331 and there are 6 fets on the board you can use

[WildPuppy]

Re: Panasonic Viera TX-P42VT30E TNPA5330 blown

Thanks for the tip about SS-boards, I'll keep an eye out in case of repeated problems.

Hopefully final update:

TV ran ok until now (about 4 hours). Re-assembled everything, started up, all ok.
Temperature in the area of the FETs is about 30-35degC at case surface, 35 with very bright pictures and a lot of ambient light (outside of the TV, K thermocouple taped to case).
Hopefully that DG302 from the shitty kit will hold, as I am sick and tired of taking out all those screws

Many thanks to all that contributed, special thanks to Moreno83.

[Moreno83]

Re: Panasonic Viera TX-P42VT30E TNPA5330 blown

You are welcome! I am glad you fixed the tv , great model with very nice picture quality. How is the burn in?
The DG302 is probably ok otherwise you would have had 6 blinks.

Did you check the contacts on the back of the sc board? Usually they are black because of arching....

You can recognize the fake parts by the logo. The Fairchild circle on original components are engraved in the fet. The fakes just have a stamp.
With isopropanol or nail polish remover you can wash off the logo from fake parts. Original parts the logo will get visibly better....

Another great panasonic saved from the bin.

[WildPuppy]

Re: Panasonic Viera TX-P42VT30E TNPA5330 blown

You are welcome! I am glad you fixed the tv , great model with very nice picture quality. How is the burn in?

Indeed, great colors, beautiful image. There are some slight burn-in marks in the corners, where the channel logos usually sits and in the bottom area where the subtitles are, but not visible under normal watching conditions. They do show up tho on a full white picture...

Did you check the contacts on the back of the sc board? Usually they are black because of arching....

That was the first thing I did after taking out the boards. Indeed, scorching occurred on all three planes of contact, the metal chassis, the board and the screws undersides. Cleaned the chassis and the screws with sand paper and took out the affected solder on the board.

Another great panasonic saved from the bin.

[WildPuppy]

Re: Panasonic Viera TX-P42VT30E TNPA5330 blown

I'm happy to report that the kit DG302 transistor holds up just fine, the TV is still working great after these few days. I imagine that if it was to break, it would have done so by now.

[Moreno83]

Re: Panasonic Viera TX-P42VT30E TNPA5330 blown

Yes the DG302 is probably a good part.