hi I have a Phillips 42pf5331 plasma tv that will not switch on the symptoms are when I switch it on at the mains it makes a couple of clicking noises as if its triping out from the power board area but all I get is a solid red standby light and if I press the power button on the side the red light just goes out ive opened the back to look for bad capacitors and cant see any. my next plan is to change all the caps on the main power board but just want to see if im missing anything any ideas would be greatly appreciated