I have a Samsung 50" DLP HDTV model no. HLN507W. When u turn the tv on there is no picture or sound. The lamp and timer lights flash together. I replaced the bulb but that didn't fix the problem I had a tv repair shop look at it and was told that the light engine needed to be replaced. They said that it would cost $900 and that the tv wasn't worth fixing. Does this sound right. Should I get a second opinion. Know of any reliable shops in the Orlando area. Thanks for your help.