I've got a Harman Kardon AVR-635 receiver that I've had for about 2 years now. Two nights ago I was watching TV and the power just cut off out of no where. It felt quite warm, but not extremely hot and I thought maybe the dog stepped on the power button on the control so I turned it back on. It seemed to run fine for the next hour or so until I turned it off.
The next day my girlfriend noticed it turning off 2 more times only to try to turn it back on and it cut off immediately. So, last night I had it on for about 30 minutes and it cut off. When trying to turn it back on it would cut off immediately. However, if I pick up the receiver and lightly jar it on the shelf it sits on it will turn right back on and work for random periods of time afterwards. I tried it three times and the first time it worked for about 45 minutes, the second time about 10 minutes, and the third for about 25 minutes.
During the times when the unit cuts off it is only slightly warm and the sides of the case are slighty higher than room temperature. I've checked to make sure there's a solid speaker connection and I plan on disconnecting it tonight, opening it up, and cleaning it out. Do you guys have any other ideas?
