I'm very sorry for any inconvenience this may have caused you. Unfortunately, this sounds like it may need servicing. Normally, I'd refer you to our support thread. But just so you know, I support US products and customers. And from what I can tell, this model is for the UK. (Correct me if I'm wrong.) So here's the Samsung UK portal for support on that product: http://www.samsung.com/uk/support/model/PS42A457P1DXXU
Hope this helps you!
Hi my Samsung plasma tv wont turn on all that happens is a red light quickly flashes on then off and nothing else happens .I have tryed leaving it on all night i have tryed switching on and off but nothing seems to work..Can you please tell me any advice or what to do..