Panasonic TC-P50S1

[jstiene]

Hello.

I picked up a Panasonic TC-P50S1. 7 Blinks when it is turned on. I disconnected the power connector at CN2 and data cable to the SC board. I then get 6 blinks. Does this mean it is definitely bad? Is there a way to test the board with a voltmeter or ohm meter? Also, how can I test the SD/SU boards to see if they are shorted?

Any help would be appreciated.
Thanks!

[tw2005]

Re: Panasonic TC-P50S1

Hello.

I picked up a Panasonic TC-P50S1. 7 Blinks when it is turned on. I disconnected the power connector at CN2 and data cable to the SC board. I then get 6 blinks. Does this mean it is definitely bad? Is there a way to test the board with a voltmeter or ohm meter? Also, how can I test the SD/SU boards to see if they are shorted?

Any help would be appreciated.
Thanks!

presume you're asking about the SC board. SC failure is pretty common with these TNPA4782, repair of that board is about the only option. not cheap but looks like shopjimmy may be going to do a kit just none available but could probably work out the parts included.

easiest way to confirm bad sc is to disconnect it from the buffer boards( 3 connections), then the 4 earth screws on the sd/su are removed(2 each) they are the ones hat attach to the sc. then on the sc there is a 2 pin sc50 connector, jumper those pins together. turn the TV on and see if still 7 blinks or turns on no error.

if no error then just the buffer boards, if error then sc board and still need to check buffers.

I think $140 or there abouts for sc repair.

if you search tnpa4782 or your model or P50g15 , p50g10 you're bound to find plenty to read

[jstiene]

Re: Panasonic TC-P50S1

tw2005,

So I started the disconnect process that you explained and when I got to SC50 to jump it, I found that it was already jumped with a drop of solder. I can see that someone used a soldering iron to do so as part of the white connector was melted.

And I did disconnect all connectors and the result was 6 red blinks.

So I think that means the SC board is bad correct?

Thanks for your help BTW..much appreciated

[tw2005]

Re: Panasonic TC-P50S1

tw2005,

So I started the disconnect process that you explained and when I got to SC50 to jump it, I found that it was already jumped with a drop of solder. I can see that someone used a soldering iron to do so as part of the white connector was melted.

And I did disconnect all connectors and the result was 6 red blinks.

So I think that means the SC board is bad correct?

Thanks for your help BTW..much appreciated

sounds like they bailed due to cost, it's possible to get the parts, just hard to be sure self repair will be successful but a few guys have managed to fix these boards.

yes if jumped and errors bad sc but checking the buffers is essential if you decide to repair the sc. I'd check them anyway so you know where you're at.

[tw2005]

Re: Panasonic TC-P50S1

this is an image I've marked with some guesses of what this kit contains assuming all this can restore a TNPA4782

[jstiene]

Re: Panasonic TC-P50S1

tw2005, is there a way to test the SU/SD boards to determine if they are good or bad?

Thanks!