anyone an ex television repair man?

my toshiba lcd 42inch tv (model 42WLT58) seems to have a problem it wont turn on the standby switch wont even come on iv swapped the fuse and no joy wont even turn on from the button on the tv.
just wondering if anyone has any knowledge of fixing tvs i do have a chap coming round to pick it up but dont wana be scammed into paying for something that aint the problem.
my mate has looked up and it could be a faulty burnt out standby component??
had no problems with picture etc