I have a Harman Kardon Dpr 2005, and when i try to power it up the display shows and after 4 or 5 seconds it shuts off. I Have tried factory reset as the manual says, and still the same. I have read other posts and some people say it might be the D2 Audio Power Module, but i have disconected and even removed any wire leading to this part, and still the same thing. I have also removed every wire leading to the sound board, and still the same thing. All fuses look good, and can't find any trace of blown resistors. This receiver was babied since new, and no chance of over heating cause i use an extra external fan to keep it cool. This problem happened right in the middle of a movie. Never turned to loud either, but i don't think that would bother this amp... I thought it might have been going into protect mode but there are no wires of any kind going into the receiver now and still the same. Can anybody steer me in the right direction to fixing my problem. Thanks in advance..