Samsung UN40D6000SF Possible bad panel?

[JeffJ]

Took this unit apart cleaned and reseated all the t-con cables and what not. The picture issues comes and goes and moves to different spots on the screen. All my research says this is a bad panel but i'm conflicted, whats this look like to you. Static images are way worse, they slowly start getting cloudy white all over. Moving picture some times looks perfect some times has a few lines some times is barely watchable.

Thanks for the input.

[CapLeaker]

Re: Samsung UN40D6000SF Possible bad panel?

Did you check the tab bonds yet?

[JeffJ]

Re: Samsung UN40D6000SF Possible bad panel?

Did you check the tab bonds yet?

No, one of the screws to the plate that covers them are stripped from the factory :? I know no one has been in this tv it's my brothers. I'll have to cut it out with a dermal which is not fun.

If i had to make a guess, its the tab bonds though. This happened after his wife "cleaned" the screen, the bonds are on the bottom of the panel on this unit. I'm thinking some moisture seeped.

[ReeceyBurger123]

Re: Samsung UN40D6000SF Possible bad panel?

Tab bond fault IMO.

[budm]

Re: Samsung UN40D6000SF Possible bad panel?

'This happened after his wife "cleaned" the screen, the bonds are on the bottom of the panel on this unit. I'm thinking some moisture seeped.' The tab bond connections are probably corroded by now.

[dick_barton]

Re: Samsung UN40D6000SF Possible bad panel?

Have you checked the tabs and tab panel board to dry it out. You may be lucky since you say the problem comes and goes and moves around.

[JeffJ]

Re: Samsung UN40D6000SF Possible bad panel?

I'm going to grind the stripped screw off with a small dremel bit, and get to the tabs and tab boards. I'll Do that tomorrow i've left my shop for the day.

I'll keep you guys posted.

[JeffJ]

Re: Samsung UN40D6000SF Possible bad panel?

Know this is older, Took a look at the bonds they didn't have liquid damage, elected not to much with them since it was still watchable. Sent it back to my brothers place. Today i happened to come across a smashed screen unit with the same tcon, the tcon was working on the part of the screen that wasnt black blobbed. so i'll try that and let you guys know.

[Alastair E]

Re: Samsung UN40D6000SF Possible bad panel?

I had one doing this bright image lark....

If you look where the T-Con goes to the small half-length boards along the bottom of panel, you'll see the ends nearest the ribbon socket is close to the steel of the panel frame...

Over time/heat/use causes the paxolin of the board to sag and there's some chunky SMD caps/--or summit--that shorts to the steel frame giving this fault...

Wedge a bit of rubber in there--All's well again.

[JeffJ]

Re: Samsung UN40D6000SF Possible bad panel?

I had one doing this bright image lark....

If you look where the T-Con goes to the small half-length boards along the bottom of panel, you'll see the ends nearest the ribbon socket is close to the steel of the panel frame...

Over time/heat/use causes the paxolin of the board to sag and there's some chunky SMD caps/--or summit--that shorts to the steel frame giving this fault...

Wedge a bit of rubber in there--All's well again.

Thanks for the heads up, I'll be sure to check this out when i get it this weekend or next. Depending when he swings it by my shop.