Hi, I went to turn on my Denon DRA 397 the other day and I noticed that nothing happened when I pressed master power. Then I noticed that the red light that is usually on when the power was off was not on either. It's like the receiver is not getting power, however the other electronics that were plugged into that outlet still work. Perhaps the circuit got over ridden? Is there any easy fix to this?
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There's a couple of possibilities; power supply shutting down because of a fault within it; the PS shutting down because of excessive current drawn and that can be caused by a failure in the final amplifiers which are probably modular in design.
Sounds like the power supply went out. Check inside to see if a fuse is blown. Replace it once (with the exact rating) and if it blows a second time, then you have something shorting out and can be costly to repair. DO NOT replace the fuse with a higher rating for it might cause a fire.
Denon panel lock was not supposed to be supported on this model, somehow yours is. We need to reset the microprossessor.
as denon manual states:
switch off the unit by pressing power.
keep both speaker a and b pressed and turn on the unit by pressing power.
check that the entire display is flashin at 1 sec intervals and release buttons.
the mircoprossor has been reset.
if step 3 does not work start over again.
the receiver will go back to factory defaults.
let us know if further troubleshooting is needed.
This worked for me, but I'm sure tired of constantly searching for ways to fix the problems I encounter with my Denon DRA-397. When it works, it's great, but I don't have a degree in electrical engineering. Why can't they produce a user friendly trouble shooting guide?