42" Vizio No pix, No sound

[jr_tech]

I just got a call from my nephew about a Vizio 42" LCD set (GV42LHDTV) that does not turn on. No pix or sound. A faint relay click can be heard and a white LED in the front of the set comes on, which may be dimmer than normal, but that is all that it does. The set is about 7 years old. Any ideas? What should I look for or check?
PS I have never seen the insides of a LCD set before.

Thanks,
jr