I have the Samsung hln507w. The tv would not turn on after several attempts. I get the three blinking light. The tv is unplug for a day, it fires up...great picture. Having read the posts on here, I decided to replace the Toshiba bulb with a Phillips conversion. After the conversion, the tv turns on right away. After a couple of hours, I tried turning the tv on, nothing. I unplug the tv. It turns on the next day. Now, it doesn't even turn on after unplugging it. It would click, click, click, and nothing. Any help is appreciated.