samsung tv sound problem?

my samsung tv model code le40k87bdx.problem to turn it on its take time and clicking severl time .some time no picture and some time no sound .i contect with tv repairer ,he said its expire.it cost you alot buy a new.then i find this fourm.i thanks to every one who shaired .i ring on 0845 no samsung tecnical .arange a enginer free of cost because its manificturing fault.engineer change 4 suply capaster .its take 20 min.know tv works fine.

raja.w
March 2011