MY DIGIHOME PVR 80 STOPPED WORKING?

TRIED TO WATCH A RECORDED PROGRAM AND IT KEPT TRYING TO REWIND, I WOULD PRESS THE PLAY AND FAST FORWORD BUTTONS AND COULD WATCH THE PROGRAM FOR SEVERAL MINUTES BEFORE IT WOULD SELF REWIND, THE DISPLAY ON THE FRONT PANEL LOOKED GREEK BUT ON CLOSER INSPECTION ALL DISPLAY SYMBLES WERE ON TOGETHER, FOLLOWING MORNING COULD NOT GET ANYTHING, NO DISPLAY NO CHANNELS, NOTHING. POWER GOING INTO UNIT BUT NO CONTROL BUTTONS WORK ON UNIT OR REMOTE.