Question about Samsung LN40D550 LCD TV
I was watching TV, perfect image, then the image just started shaking looking like static. Is this something that can only be fixed by a professional?
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Posted on Jan 02, 2017
I had the same problem. Except mine never got better after the tv warmed up. I fortunately I still have my manufacturers warranty and Samsung sent a guy out within a few days. He replaced a few parts which really didn't do anything. However what he did that was interesting was on two circuit boards. One on the mid left and the other on the mid right. Apparently there is a nob or something he tweaked on each panel that cleared the grainy image right up. What he told me was that the it is basically pixels that are not turning off in sync. adjusting the two circuit boards syncs the pixels to turn on and off at the same time.
Posted on Nov 12, 2007
Sounds like a defective set. I have the same TV and don't have this problem. It's a long shot, but one thing you could try is turning on "Game Mode" which is designed for fast moving action.
Posted on Jul 15, 2008
your va and vs need to be adjusted and if that doesnt fix it then you have a board going bad but still requiers repair or service tech to find out
Posted on Feb 07, 2009
1st -- power board problem
2nd -- Y- Main Board problem
If you are familiar with TV,
Open the back panel first then check the fuse on power & Y-main
It had problem that the board's which disconnected fuse on.
Posted on Feb 24, 2009
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