Panasonic TCP50S1

[Rustifer134]

Merry ( day after ) Christmas !

This 2009 Plasma tv, Panasonic TC-P50S1 went dark on me this past Sunday evening. A loud pop was heard just before the screen turned black. I am getting the "seven blinks of death".I would like to repair this set. I really like the display, even at 720p. And of course, I'd like to do it as inexpensively as possible. The search results (via Google) tells me it could be one of several boards. Which board is it likely to be ? There were no lightening storms that evening. No black out. No power surges, as far as I know. I suspect enough dust was collected to form a bridge on one of the boards, though I really don't know.I have already removed the "thousand" or so screws from the back cover. And it's not too dusty IMO. Purchased in late 2009. Is this set worth saving ? Advice would be appreciated.

[Moreno83]

Re: Panasonic TCP50S1

If you were happy with the tv and want to keep it ...then yes its worth saving! Could you please take some pictures of all boards?

Use the paperclip function to upload files. ( advanced ) Don't use external websites for uploading pictures.

7 blinks can be any board but my guess is the SC Board.

[ReeceyBurger123]

Re: Panasonic TCP50S1

Good research, Im already out.

[Moreno83]

Re: Panasonic TCP50S1

Reecey m8 , its not a vestel! 17IPs is your speciality


Service manual says 7 blinks is SC / SU or SD board. This means the 3 boards on the left.
You heard a loud pop....good chance the SC board is bad!

Do you have a multi meter?

[vinceroger69]

Re: Panasonic TCP50S1

service manual link

[ReeceyBurger123]

Re: Panasonic TCP50S1

Reecey m8 , its not a vestel! 17IPs is your speciality


Service manual says 7 blinks is SC / SU or SD board. This means the 3 boards on the left.
You heard a loud pop....good chance the SC board is bad!

Do you have a multi meter?

Ive fixed prolly more pannys than you have lol, I dont normally go into complex voltage lists as I cant be arsed to type it just this thread nothing at all to help us so I quit :

[Moreno83]

Re: Panasonic TCP50S1

Haha depends , i only repair Panasonic plasma's

Anyways remove the power cable and the SC20 cable from the SC board and get a multimeter. Measure for short on the white prong connector of the SC board. Constant beep is bad.

[ReeceyBurger123]

Re: Panasonic TCP50S1

Ahh shit, you mind getting yourself on my TNPA5105 thread then haha

[ljintexas]

Re: Panasonic TCP50S1

I have fixed two of these with similar symptoms. SU and SD board took out the SC board. Also found many what I would call loose screws on all boards.

My $.02

LJ

[ReeceyBurger123]

Re: Panasonic TCP50S1

http://www.ebay.co.uk/itm/TCP50S1-TX...-/191245600496

[Rustifer134]

Re: Panasonic TCP50S1

I do have a multimeter.

[Rustifer134]

Re: Panasonic TCP50S1

Here are the requested photos.

[Rustifer134]

Re: Panasonic TCP50S1

No short detected on the white prong connector of the SC board.

[ReeceyBurger123]

Re: Panasonic TCP50S1

What about SS ?

[Rustifer134]

Re: Panasonic TCP50S1

No short detected on the white (3) prong connector of the SS board

[ReeceyBurger123]

Re: Panasonic TCP50S1

Ok now remove the buffers from SC and jumper SC50 connector pins on the SC and see if the set comes on. If it aborts again check what Vsus does and Vsc.

[Rustifer134]

Re: Panasonic TCP50S1

I just noticed, that I actually checked the SC2 connections of the SC card and not the SC20, as instructed by Moreno83. SC20 looks like a ribbon kind of connection. So, my question here is, how do I test these tiny connections ?

[Moreno83]

Re: Panasonic TCP50S1

No no. You need to remove the SC20 ribbon cable from the SC board and remove the cable thats connected to the white prong connector going to the PS.
Remove the buffer boards from the tv or make sure that they DO NOT TOUCH the SC board.

Now measure in beep/diode mode on the white prong connector. No beep is usually good , same for SS board.

With the buffer boards disconnected from the SC board , search for a harddisk jumper and use the SC50 jumper. ( short 2 pins ).
Turn on the TV , does the set stay on or do you get a blink ?

[Moreno83]

Re: Panasonic TCP50S1

Ps , the SC50 connector is on the bottom left corner next to the black connector going to the buffer boards.
The buffer boards are connected to the SC board with these big bolts , remove the bolts and flip the buffer boards out of the way. Short the SC50 connector and turn on the tv.

[Rustifer134]

Re: Panasonic TCP50S1

The black connectors you are referring to. How are they removed from the pcb ?

Never mind. I got it. So far.