I have a Sanyo 50"plasma tv that stopped working Saturday. Model no. DO50749
I have no sound or pic. Indicator. Light comes on for a few seconds then goes out. I hear clicking in the back of the set in relation to the light. Is this a power supply problem or a main board problem. Tv belongs to my 95 year young grandmother. Please help!!!!!! I do get a little glow from the screen area when the indicator light is on.