Panasonic TC-P50S30 Repair

[tvrepairhelp]

Hi, I'm trying to fix a Panasonic TC-P50S30 tv, it went dead after it was working fine, when I tried to turn it on, the light blinked seven times. I've looked into the repair a little but I have never tried to fix a tv before and am still learning a lot, I know there are a lot of great resources here for that. So I found out that the most common problem with seven blinks and easiest to fix is to replace the main board, which I found on ebay and ordered. Now here's where this gets confusing, when I got the board I realized the model was TNPH0914 2a, and the one in the tv is a TNPH0914 1a, but the 2a was listed on ebay with the TC-P50S30 I'm trying to fix. So this TV was sold new with a slightly different board.

I found this post where the op asked if the 1a is compatible with this tv and someone responded that you can't use it unless you're prepared to swap the panel control flash chip over. I don't even know what this is and this repair might be beyond me right now, especially because there's a chance that the main board isn't even the problem. Since the TNPH0914 1a board is in this tv, does this mean that the panel control flash chip would have to be swapped over again? Or maybe it would be easier to try to replace it with another 1a board? Any help would really be appreciated, thanks!

Edit: Also sorry for no pictures, I can't get the back of the tv off by myself, but I know which board is in there because I can read the model number through the back of the tv. It would be a few days before I could get some help taking the back off to take pictures.

[tw2005]

Re: Panasonic TC-P50S30 Repair

I'd love to know the sources you used that state the A-board is the most common cause for 7 blink. Nothing could be further from the truth.

Most common failure in this generation is the SC board, also poor earthing bolts that work loose and can get burn marks under the SC & SS boards.

So far I've read of , locked solid front LED, 14 blinks , 7 blinks for a bad SC board

The 1A & 2A are not the correct way to determine the board versions. Assuming Shopjimmy's info is good, TNPH0914AC, TNPH0914AS, or TNPH0914AK should work.

Hopefully the seller accepts returns.

You should be able to prove the A board is not 7blinks by trying this.

TV off. Disconnect SC2, SS11, P35 & the 3 white ribbons at the A board. now turn on normally and watch the front LED. If it turns on and stays on, no blinks then the A & P board have passed. Turn it off and let sit. Do not reconnect SC2,SS11 or P 35 for at about 5 mins to let the votage charge drop or you'll damage the panel / boards.


ModuslinkPTS repair boards

[tvrepairhelp]

Re: Panasonic TC-P50S30 Repair

Alright, I'm embarrassed, I'm a total newbie to this stuff and I'm probably making more mistakes than I even realize.

But I found this video on youtube where the same model of tv was fixed by replacing the a board, and you can see the inside of the tv there. He points out the model number that I'm talking about, that's what is on the board, the number in the circle is the difference I can see, I'm not sure about the correct versions.

I watched a few more videos and read some more stuff online and found that it was either the a board or the sc or sc and ss boards. I also found a video that showed that method for testing which one it is too, so I don't really have any excuses for ordering that a board too early or thinking it was the most common problem, except maybe for wishful thinking. I guess I have to test it in a few days when I have someone to help me.

[tvrepairhelp]

Re: Panasonic TC-P50S30 Repair

I looked it up and the ebay listing said TNPH0914AS TXN/A1PHUUS TNPH0914 for the a board that has a 2 on it. I think there still might be a chance it's the a board. Am I wrong?

[tw2005]

Re: Panasonic TC-P50S30 Repair

I looked it up and the ebay listing said TNPH0914AS TXN/A1PHUUS TNPH0914 for the a board that has a 2 on it. I think there still might be a chance it's the a board. Am I wrong?

I think A board unlikely, either try my suggestion or fit the board. if it 7 blinks with new board then I'll say not A, if it turns on with what I suggested then not A board. Odds are heavily stacked that it 'll be SC and sd/su need to be checked as well.