sanyo EM - D953 no display?

Hi microwave was working great until I tried to open the door. Then the display just went off and I thought I heard a small 'pop' sound from inside the oven. Now nothing works at all.
I have checked the fuse in the plug and the power socket supply, both ok, so is there anything inside that could have blown and can easily be replaced? thanks for any help offered

Stephen James
December 2009