Samsung PN50B430P2D with vertical lines

[dcapper]

I have this Samsung with vertical lines. They are evenly placed on the screen, making me think it's not a panel problem. Is that caused by the upper scan drive or the XSUS?

[ReeceyBurger123]

Re: Samsung PN50B430P2D with vertical lines

Thats either a mainboard or Tcon problem, upload images of the boards.

[dcapper]

Re: Samsung PN50B430P2D with vertical lines

I'll have to do it when I get back from vacation. My buddy emailed me the pic and I thought I could get some ideas. I can get him to take the back off. I would say t-con but this a plasma.

[ReeceyBurger123]

Re: Samsung PN50B430P2D with vertical lines

Yes Plasmas use a Tcon lol otherwise known as the control board (in the centre of the set normally) but they do basically the same job.

[Hamie]

Re: Samsung PN50B430P2D with vertical lines

Agree with reecy.

Run test patters by jumping pins 3 and 4 on the control board.

If the lines remain it's a control board fault.

[dcapper]

Re: Samsung PN50B430P2D with vertical lines

Perfect. I'll get more info, post pics and an update. Sorry, just never knew the control board was the same as a tcon. Nobody has mentioned that to me before.

[ReeceyBurger123]

Re: Samsung PN50B430P2D with vertical lines

Narr its fine lol let us know

[dcapper]

Re: Samsung PN50B430P2D with vertical lines

My buddy popped into my house to look at the tv. The main board is a BN94-02802C. The logic board is a LJ92-01700A. I asked him to do the logic board test but he couldn't get the test pattern. He jumpered 3 to 4 and pulled the right ribbon cable. He said the tv turned on but it was a blank screen. Is that a main board or is that he's doing it wrong?

[ReeceyBurger123]

Re: Samsung PN50B430P2D with vertical lines

Make sure to remove the Lvds cable (main board to logik board) then try.

[dcapper]

Re: Samsung PN50B430P2D with vertical lines

He said that's what he did and it was just a blank screen. He had to leave but might go back to the house later on tonight.

[dcapper]

Re: Samsung PN50B430P2D with vertical lines

He sent me pics on the test screen. I told him to pull the wrong ribbon cable. The lines are still there. I guess the control board is faulty?

[augiedoggy]

Re: Samsung PN50B430P2D with vertical lines

So was this ever fixed? I have an insignia set with the same exact lines and results in diagnostics

[Hamie]

Re: Samsung PN50B430P2D with vertical lines

It'll be a control board fault.

[augiedoggy]

Re: Samsung PN50B430P2D with vertical lines

It was the small main logic control board... $15 fix..

[angelos]

Re: Samsung PN50B430P2D with vertical lines

Hi Guys,
I have the same tcon board, the LJ92-01700A,
My set does not give off the precharge flash on startup. I am not sure if the fault is on the X, Y or main logic board so i read up here about the AUTO GEN test where you short out pin 3 & 4 with the LVDS cable unplugged but i get nothing, no precharge or any image. Just the relay kicking in and out every 8 seconds trying to restart.
How do i go about pin pointing on which obard the problem is????

Regards
Angelos

[Andrew F. Ali]

Re: Samsung PN50B430P2D with vertical lines

Just for information. PLASMA TVs does not have a T-CON Bd. The correct name is LOGIC Control Bd. LCD and LED TVs have a T-CON Bd. Though both boards to basically the same work, when we are referring to a PLASMA TV we say LOGIC Control Bd and T-CON Bd when referring to LCD and LED TVs
I thought I should explain this so as not to confuse the 'Newbie' and for any critics to this Forum who may read this Thread.