Samsung 50PN4500 horizontal stipe

[Ltank]

I had a Ysus problem. The original board Ysus EBR74825301 was burnt so got a replacement that has the 205 VDC. The original board shorted out the 205vdc. The new board has 205vdc but there is a wide horizontal section of good video but above and below it appears to have bad scan lines. Is it a bad
Ysus or X board Control Board or Main Board. I have not had this symptom before. I will post a pic of the screen

[Ltank]

Re: Samsung 50PN4500 horizontal stipe

Pic of stripe

[Ltank]

Re: Samsung 50PN4500 horizontal stipe

Sorry its a LG set. The Ysus and Buffer are a all in one board

[mmartell]

Re: Samsung 50PN4500 horizontal stipe

If the buffers are integrated into the YSUS then it looks like a faulty replacement.

[Caleb]

Re: Samsung 50PN4500 horizontal stipe

I had those lines show up on a panasonic I replaced the buffers on and mine was caused by misaligned ribbons into the buffer connnectors.

[tom66]

Re: Samsung 50PN4500 horizontal stipe

It's very hard to line up those connectors properly. Check they are all perfectly seated as you will see this if they are not.

Interesting that LG went for the combined Y-buffer/sus solution - they ain't done that before, even though Panny & Sammy have done it lots...

[Ltank]

Re: Samsung 50PN4500 horizontal stipe

Thanks Guys. I reseated all the P Connectors on the Ysus. P 706 on bottom would not seat all the way. The flat panel cable would not go all the way in. I had to use a small too to expand the connectors so the flat cable would seat. I guess the flip lever was not all the way open when the removed the cable bending the fragile pins on the board not leaving enough room for the cable to seat properly.

[tom66]

Re: Samsung 50PN4500 horizontal stipe

So it's fixed?

[Ltank]

Re: Samsung 50PN4500 horizontal stipe

Yes works fine