Just posted in the AVR-889 thread for a problem I'm having with that unit. While that's getting resolved I have a 2312CI that just started acting up on me as well. It's been fine for three months, but over the weekend I swapped the receivers. When I swapped back the 2312CI started doing something really weird.
Basically, when I turn it on, the power light flashes green for a few seconds while the unit powers up, then there's a click and the light goes solid green and the unit is operational. This is as normal.
But then, 10-12 seconds later, there's another click, the unit's display blanks, and the power light starts flashing green again. Once more, it clicks, the light goes solid green, and the unit is up.
This repeats endlessly until I shut off the power.
Doing some diagnosis, last night I reset the microprocessor, which didn't resolve the problem. Then I unplugged all the connections from the back, which didn't resolve the problem. Then moved the unit itself to a number of different power outlets, which didn't resolve the problem.
Finally, I left the unit unplugged for about 10 minutes. Once I plugged it back in, the issue was gone.
That lasted for about 24 hours, and now it's back.
Any thoughts? Did the power supply on this unit just go or something? I called Denon support today to ask if they've seen this problem at all. Let's just say they were not very helpful.
Thanks in advance for any help...