Re: Samsung LN40A500T1F intermittent distortion

I thought I would give an update. What I eventually found was that the cable that attaches to the video board needed to be pulled away from the panel. Attached is a picture of a pill bottle I taped in place to keep the cable pulled away. I had previously tried cleaning the cable ends and the connectors, first with isopropyl alcohol and later with some very light sanding with find sandpaper followed by more isopropyl alcohol. These things sometimes temporarily fixed the problem but within a week or so the problem was back. I also placed...

Re: Samsung LN40A500T1F intermittent distortion

Update: I thought I'd give an update for others who might have a similar problem. Although I had disconnected and reseated the cable ends that connect the main board to the T-con board several times before posting, it never seemed to fix the issue I was having and wiggling the connectors while the picture was distorted never corrected the problem. So, almost a week ago now I removed the cable connectors and used some compressed air to blow off the male and female connections. Then I used a Q tip and some isopropyl alcohol to clean...

I have a Samsung LN40A500T1F. Most of the time when I turn it on after it has been off for a while, I get audio but the picture has lines and colors that change and the intended image is not displayed. Sometimes, I can leave the TV on for about 1 minute, turn it off, then turn it back on and get a good viewable image. If I leave it on, the good image remains viewable until the next time it is turned off, cools down and is turned back on. I have attached some pictures, the first three of which were taken within about 10 seconds of each other. The fourth picture was taken after I turned off the...

Re: New Members - please post your introductions here

Good evening. I work on various types of electronics as a hobby. I have an electrical engineering background and get a lot of satisfaction out of fixing things.