Hi, I have a samsung LNT4661FX/XAC its been around 3 years.. Recently there are a bunch of red dots appearing on the screen no matter what channel or input its on.. they stay there even if I close it and reopen it! The only way to temporarly remove them is to unplug the enitre tv and then replug and start it.. But they always return! And slowly slowly they are becoming more and more.. Is there a way to fix this or imy only option is sending it for repairs? Thanks a lot!!

SOURCE: Little red dots

The driver board is going bad it sounds like and if you do not call up and get it fixed under warranty, as it should still be under a warranty, then its going to be a nice hefty repair bill. Good Luck Ps Please dont forget to rate this thread

SOURCE: Vertical lines in LCD tv screen

Need to check the two things.

1st -- need to exchange T-con Board.
2nd -- need to exchange the cables between T-con & LCD panel or
between T-con & Main(LVDS cable)

SOURCE: I can't find our model anywhere!

no

SOURCE: Samsung Plasma TV

I have this problem too. I have had a technician over to service it twice already and I picked up on a few things he did to fix it. Here is what I learned. the raining pixels has to do with the timing in the circuit boards. Basically telling them when to turn on and off. I would only recomend this solution if you are technically inclined. Remove the back from your tv on the left upper quadrant you should see a small gray dial with marks that a Philips screw driver would fit it. There are three or four of these on the boards scatter across the tv. Each on corresponds to the colors firing in sequence. Take your Philips and turn it to either extream. You should see a your screen go crazy with whatever color corresponds to the dial. Then ever so slowly turn the dial undtil you don't see any more flickering. Do that with each dial and you should be able to get rid of most of the flickering. on the right side of the there is a panel underneath the support bar with orange adjuster. I don't know what they do but they also help reduce the flickering. A word of caution. If you can use something non metallic to adjust these dials. There is a small metal lip to keep the dial from turning too far. If your screw driver touches it. It will fry the dial and your screen will blink red/yellow or blue. and you will have to buy a new board. Luckily they are only about 30 bucks, but I learned the hard way.

SOURCE: Purple dots on HD LCD samsung model LNT4661FX/XAA when on.

hi,
your lcd micron tube in the panel had already worn out.
got to replace the panel