Samsung PS50A557S3F - vertical lines on right hand side

[noledud]

Samsung PS50A557S3F

Hi all i have a 50 inch plasma with vertical lines on one side ( right when facing screen )

I have added some pics below, can anyone suggest on where i start my trouble shooting ?

The pics were taken while the panel test was running

[tom66]

Re: Samsung PS50A557S3F - vertical lines on right hand side

I'm going to say about 90% that the plasma panel is dead. This is an extremely common issue with A-series Samsung plasmas. Not economical to repair I'm afraid.

The only saving grace is that there aren't always static lines. They do vary. It's possible, though unlikely, that it is just a control board fault or loose connector. Can you take a video of the fault?

[noledud]

Re: Samsung PS50A557S3F - vertical lines on right hand side

here is the video

https://www.dropbox.com/s/el2eidt8em8spcc/IMG_0641.MOV

just fyi information i got the tv with a power fault so i have been diag that so have had connectors off and on etc

2 bad caps were on the y board and also replaced the ps

that is now repaired and this is the first i have had the panel powered

[tom66]

Re: Samsung PS50A557S3F - vertical lines on right hand side

What's it look like with analog snow or moving input... do the lines ever move? Did you ever plug in or unplug the Y-main or X-main connector while the set had power (may have caused a small spark?)

[noledud]

Re: Samsung PS50A557S3F - vertical lines on right hand side

bump

[noledud]

Re: Samsung PS50A557S3F - vertical lines on right hand side

hi sorry tom66 you reply only showed after i bumped

snow is this - see attached pic and video is here

https://www.dropbox.com/s/nqlsekl1ktb6tpw/IMG_0650.MOV

no the lines never move

i have taken the y main and buffer boards out and clean re seated cables etc

the lines do not move at all i have tried flexing the screen and all cables never changes

no i didnt ever remove connectors while powered always leave it for a while after power

but there were 2 caps blown on the y main

[tom66]

Re: Samsung PS50A557S3F - vertical lines on right hand side

Hmm, yeah, looks like a bad panel to me, sorry! I give control board a very small chance of causing this because the lines do somewhat change but not as I would expect.

[noledud]

Re: Samsung PS50A557S3F - vertical lines on right hand side

ok well i have had the control board out so i will remove clean and put back first.

Thanks for your input tom66

[noledud]

Re: Samsung PS50A557S3F - vertical lines on right hand side

have you got any ideas what causes this as the person i got it off said it was on the wall and then stopped working and was just clicking - i replaced 2 caps on y main and also replaced ps

it now powers but panel is damaged ? can this happen with shorting ?

[tom66]

Re: Samsung PS50A557S3F - vertical lines on right hand side

People lie. I have had this before. It is a shame, the first one you get with more faults than advertised. You lose trust.

[noledud]

Re: Samsung PS50A557S3F - vertical lines on right hand side

It is a shame and don't want to give up tbh

Can i ask everyone's opinion would you carry on and look at getting a control board or call it a day

There must be some of you who have given a repair a 0% chance but then found it to work?

[tom66]

Re: Samsung PS50A557S3F - vertical lines on right hand side

Depends how much a board costs, sounds like you have invested a fair bit in this, so I would probably bail out by now. Thankfully, it doesn't happen often.

[noledud]

Re: Samsung PS50A557S3F - vertical lines on right hand side

or is there a way i can confirm its the panel with out trying a control board ?

[tom66]

Re: Samsung PS50A557S3F - vertical lines on right hand side

If there was a way aware to myself, I would have mentioned in, maybe if you have a scope you could check the data lines to each address buffer. The only thing telling me it is control board is the lines change now and then, but they don't change enough (if that makes any sense...)

I stick to PZ80 Panasonics they do not have this problem AFAIK, avoid A-Series Samsung like plague due to this fault and similar faults.

[noledud]

Re: Samsung PS50A557S3F - vertical lines on right hand side

so far its £40 for the tv, £30 for PS and £2 on caps

[noledud]

Re: Samsung PS50A557S3F - vertical lines on right hand side

we keep posting at the same time tom66 lol, im going to strip clean contacts then rebuild if it still dont work then break for parts.

Again thanks for all your help mate

[noledud]

Re: Samsung PS50A557S3F - vertical lines on right hand side

hi tom66 i wanted to grab you befor you went offline

i have striped the y main connectors main board connectors and the bottom pcb connectors

cleaned all with PCB cleaner and re built

i now only have 1 bar that has been moving

pics to follow in a min my batt went and wanted to grab you before you went

[tom66]

Re: Samsung PS50A557S3F - vertical lines on right hand side

You could have got lucky, just a loose connector.....

[noledud]

Re: Samsung PS50A557S3F - vertical lines on right hand side

this is the video you can see the static behind the vertical bar

https://www.dropbox.com/s/cmspd569xmmist0/IMG_0663.MOV

and i have attached the pic

as you can see its much better

where do you think i concentrate my efforts as i cleaned a lot of connectors then i want to try and narrow it down

[tom66]

Re: Samsung PS50A557S3F - vertical lines on right hand side

That line looks like a loose connector now, a lot more like what I would expected. That is very strange but lucky. Just make sure it's all seated properly and it should work.