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How do I reset my Denon DRA 685 receiver? I had received a "Protection" error message, and I checked and my speaker wires were reversed. So I've fixed that, and meanwhile I have lost my Owners Manual. I think I may need to "reset" it? How do I reset the receiver, now, as "Protection" is still showing!

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  • 2 Answers

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Posted on Jan 02, 2017


SOURCE: Denon Receiver flashed PROTECTION and stopped working after plastic smell

i just had the same thing happen to me what did you do to fix it?

Posted on Jan 04, 2008

  • 395 Answers

SOURCE: right channel not working

check the pre out /main in jumper there should be a loop jumper for both left and right. if you are using a graphic EQ check the wires connecting to the receiver and the EQ. also is this happening on all sources?

Posted on Feb 07, 2008

  • 1 Answer

SOURCE: Denon DRA 395 flashing red power light

Needs to be reset or fuse blown. Take to repair shop, cover has to be taken off and fuse replaced. You could fix it yourself but the warranty won't be honored. Do it yourself electronic shop should have a replacement fuse, may have to be soldered in place. Repair shop, should cost around $30.00 to $45.00 to fix, price of fuse $4.00 to $6.00. Your choice.

Posted on Mar 27, 2008

  • 54 Answers

SOURCE: Sonamp Set up

Tape out from dennon to tape in on sonamp then select source from dennon.

Posted on Apr 02, 2008

  • 1 Answer

SOURCE: Denon AVR-1508 Receiver problems - cuts off and goes into protect mode

i have the same problem . denon had changed knob and circuits ?! one day later ... same issue !
i have 5.1 evo tangent 4-8ohms and 2 technics 8ohmsand i use frquently A+B configuration

Posted on Nov 08, 2008

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1 Answer

The protection mode want go off from my reciver denon dra 685

Generally speaking, an amp protects itself from heat, shorts and overloads by refusing to turn on or stay on.

Overloads can be from excessive periods of high output or marginally low impedance loading by the speakers; and shorts would be wiring issues or a speaker blowing up.

You should be able to feel if it's hot. WHY is it overheating? Make sure it has sufficient ventilation on all sides and that vent holes are not blocked by dust balls. Ensure the fan (if equipped) is running as designed (some only operate on demand). Clean dust and debris from it.

If the amp comes back on after cooling, you're lucky. They only have so many self-protection cycles in their lives so continuously resetting or cycling their power without addressing the cause can do more harm than good.

If it protects immediately on a cool power up you should disconnect the speaker connections and try it 'naked'. If it comes up then diagnose which lead(s) are shorted. If it does not come up the problem is internal and should be left to an experienced and competent hands-on tech.

Feb 20, 2011 | Denon DRA-685 Receiver

1 Answer

What can i do to be able to take my denon dra685 out of protection mode??????

I just recently picked up a Denon DRA-685 receiver that was stuck in protection mode. I found a site online that suggested it was due to two bad resistors on the main circuit board. More specifically resistor R-105 and R-106. They are both 1 ohm x 1 watt resistors. I ordered these from a supplier on Amazon for a few dollars, and just snipped the old resistors off, leaving the soldered leads sticking out. I then thinned the new leads and soldered them to the protruding wires, so I didn't have to remove everything. The unit now works like new. I'm happy I spent the time doing this, and grateful to the tech who discovered the common problem with this unit. Hope this can help somebody else. H

Nov 14, 2010 | Denon DRA-685 Receiver

1 Answer

I cant get any sound to come out of the receiver. I checked that the speaker wires are not touching. if it is in protection mode how do I get that turned off

Good start checking your speaker wires. A better test would be to disconnect them entirely in case there's a short inside the speaker itself. Keep the volume WAY down when you power back up and see if it runs for a while. If it does, then you do have a short somewhere - probably inside speaker. If it trips off, you might want to think in terms of getting the problem fixed rather than defeating the protection circuit.

Nov 11, 2010 | Denon DRA-685 Receiver

2 Answers

Flashes protection

Yes, I agree with the expert, if problem still not solved after removing speaker wires then receiver got problem in amplifier output section and most likely output chips got bad.
Flashing protection is an error sign and unit wont power up to avoid further damage.
Visual check by experienced tech is required to fix the issue. Local repair shop will help you for that.

Jul 27, 2010 | Denon DRA-685 Receiver

1 Answer

Dra-685 the protection came on ,i found 2 speaker wires together,fixed that,but still stays on,thanks

You may have a speaker that is damaged and causing the protection to operate. Try unhooking all the speaker wiring from the receiver, turn the volume to minimum, and see if the protection still comes on. If the receiver is okay, you can start checking the speakers and wires to determine which one(s) may be responsible.

If the unit continues to go into protection even with no speakers connected, the trouble is inside the receiver. No protection circuit is absolutely perfect, so it's possible something failed before the circuit kicked in. Without the proper test equipment and service information, you won't be able to try fixing this yourself. Take the unit to a shop for an estimate.

Thanks for using Fixya! Hope your receiver's back in service soon.

Feb 02, 2010 | Denon DRA-685 Receiver

1 Answer

THe word Protection is coming across the screen instead of input or other

Dissconnect the speaker wires. If you still get the protect message you have a bad output stage in one of the amp channels. If the message does not appear you have a shorted speaker wire or a bad speaker. If the amp is bad you could still have a bad speaker or shorted wire that could have caused the amp to fail. Resolve this before reconnecting to the repaired amp or failure will reoccure.

Oct 31, 2009 | Denon DRA-685 Receiver

1 Answer

Reset danon receiver

You don't all you can do is unplug it for 5 mins

Jan 25, 2009 | Denon DRA-685 Receiver

2 Answers

Right channel not working may want to check the speaker fuse, located on the rear of the unit.. sometimes too small wattage speakers get hooked up and the speaker fuse will blow as to not hurt the speakers.
Hope this helps.

Feb 07, 2008 | Denon DRA-685 Receiver

1 Answer

Denon DRA 685

Could it be that the speakers load is too much for the amp to handle? What are the ohm ratings? It should handle a low load but I am just wondering? How effcient are they?

Nov 29, 2007 | Denon DRA-685 Receiver

1 Answer

Protection error

your loudspeakers tweeters have shortcut *try them separetly)


Sep 08, 2007 | Denon DRA-685 Receiver

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