I have a LN46A650 and am having the same issues. Any information on this would be greatly appreciated.
I have a Samsung DLP tv that when I try to turn it on it keeps power-cycling on and off for about 20 minutes before finally kicking on. I have seen posts on this and am wondering how I can go about getting help. I have loved this tv and starting to become very disappointed as I read posts and it sounds like I will have to wait till Samsung says it is an issue or pay myself to fix it - I don't have the money to fix it. I don't feel comfortable trying to fix it myself. Is there anything else that I can do?