Hyundai HPTD 4202s green light but no picture or sound......

[pharmer]

Hi Everyone first post......I have a Hyundai HPTD 4202S and when its switched on, both relays click and then one of the large capacitors makes a slight noise, then a relay clicks again.  Is this normal or is the relay de-energising? The green LED on the front lights up but then it just sits there.  Any ideas anyone?