Bought my samsuck in dec. 2005,about a year ago the bulb went out no problem,also checked the color wheel the bearing in it was out,replaced it. Still no picture, nothing but a black screen. A tv repairman friend of my wifes said it was probly the DMD board but start with the analog board. replaced it with a refurbished on $225.00.Still no pic.What should i do,I am not about to pay $300.00-$400.00 dollars for a repairman.please help i miss my Tv.