Question about Denon DRA-397
Displays doesn't stay on
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Posted on Jan 02, 2017
SOURCE: MY DENON DRA-435 A RECEIVER
These recievers were infamous for the power transformers going bad(opening) if more than 2 speakers were hooked up and it was cranked up.Did it die while playing?Do you have 4 or more speakers hooked up?Was there a power surge?Let me know........
Posted on Jul 23, 2008
Without looking at the schematics for this particular model, I'd surmise that the click is indeed a speaker protection relay. Generally this is fed by a number of different sense circuits that watch for power amp issues and/or excess speaker current and/or power supply output stability. Although the relays do indeed fail at times, generally it is not the relay that is at fault. If you have a scope and a schematic, you can check the various circuits that feed the relay for the exact cause. If not, you can do some experiments that might help deduce the problem: e.g. do headphones work when speakers do not, does the relay click on when no speakers are connected (or selected), etc. In my experience, it is most often the output transistor(s) in the power amp. But not always ;-)
Posted on Oct 15, 2008
Hi, Press the B and the Mode buttons and then hit the power button. This should unlock the panel....it worked for me.
Posted on Dec 30, 2008
Try to reset the macroprocessor. Unplug the unit from AC, hold both buttons SPEAKER A and SPEAKER B and plug the cord in outlet. After display flashes several times release the buttons. No result? - repair shop.
Posted on Apr 09, 2009
There are three modes (Auto, DTM, and PCM) on the input mode switch, on the main unit, selected by repeatedly pressing the input mode switch.
However, if you have already depressed the Analog button in, on the main unit you have predetermined the mode as analog.
On the remote, the INPUT MODE switch combines toggles for 5 choices, [Auto, PCM, DTS, Analog,
My guess is that either the input mode switch on the main unit and/or the remote are toggled to analog.
Posted on Apr 11, 2009
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