magnavox 51mp392h-no picture,no sound

[Guest]

Hello.I have a Magnavox 51' rear projection tv.It worked great until i turned it on this morning and there is no picture and no sound but,the tv powers on fine.No clicking sounds,no awkward smell.I opened the back panel of the tv.I do not think the bulbs are getting power to them.Could it be a bad power supply or some type of relay,bad joints?
Thank you for anyone who can help!!!!