Question about Denon DRA-775RD 2 Channels Receiver

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How to repair Denon DRA-775RD? - Denon DRA-775RD 2 Channels Receiver

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Posted on Jan 02, 2017

rommelalilin
  • 2178 Answers

SOURCE: I have a Denon receiver dra 545a that won't power

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.

Posted on Oct 31, 2010

dunnbiker
  • 8546 Answers

SOURCE: denon dra-775rd receiever was working

Generally speaking, an amp attempts to protect itself from heat, shorts, overloads and operator exuberance 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.

Check for loose speaker connections at the speaker as a root cause for intermittent shutdown.

Posted on May 15, 2011

  • 1 Answer

SOURCE: denon dra-95vr receiver has no sound out. All

DRA-425 HAS NO SOUND, EVERYTHING ELSE WORKS. FOUND ONE FUSE THATS GOOD, ARE THERE ANY MORE. YHANK YOU

Posted on Feb 11, 2013

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1 Answer

Protection


I just had this same problem and called Denon. I was told to unplug the unit and unplug all attached to it. Then, push both the tuning buttons at the same time (both the up and the down) hold them in while plugging the Denon back to the electrical. Watch the front of the Denon and see 5 cycles flash on the tuner display and then let go of the tuner buttons. Then plug things back in.
That helped the protect thing for minutes. I redid it several times.
No good. One of the channels blew out. I would now get rid of it for parts. I have not had luck with Denon.

May 11, 2013 | Denon DRA-775RD 2 Channels Receiver

11 Answers

I need a 2621217005 for a Denon DRA-1025RA receiver.


http://www.vancebaldwin.com/products/?DEN2621217005

Jun 24, 2008 | Denon Audio Players & Recorders

1 Answer

Denon dra-775rd receiever was working then shut down and now only getting the little red light...nothing else please help if you can thank you


Generally speaking, an amp attempts to protect itself from heat, shorts, overloads and operator exuberance 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.

Check for loose speaker connections at the speaker as a root cause for intermittent shutdown.

May 15, 2011 | Denon DRA-775RD 2 Channels Receiver

1 Answer

Denon dra 397 shuts done if I turn on both zone a & b. Have a 100 watt volume control on each pair of speakers. Works fine with only zone a or zone b on, but not both.


Let's understand this - you have an external volume control wired in series with each front speaker set?

Can you elaborate on their electrical characteristics?

http://www.retrevo.com/support/Denon-DRA-397-Receivers-manual/id/696dj087/t/2/

Page 24.

A + B 8 - 16 ohms

Jan 22, 2011 | Denon DRA-397

1 Answer

I have a Denon receiver dra 545a that won't power on... how costly might it be to repair


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.

Oct 31, 2010 | Denon DRA-397

1 Answer

Looking for Denon dra 1025r Service &/or user manual


I have a Denon Dra-1025R operating instruction book,if this what you need and I can offer some info let me know

May 06, 2009 | Audio Players & Recorders

2 Answers

Denon receiver (DRA 397) will not speak to iPod dock


IF YOUR NOT USING A DENON IPOD DOCKING STATION IT WILL NOT FUNCTION CORRECTLY.
YOU CAN CONNCET OTHER TYPES OF IPOD DOCKING STATIONS BUT YOU WILL NOT HAVE CONTROL THROUGH THE DENON AND ONLY CONNECT THE AUDIO FOR THAT DOCKING STATION TO THE DENON AS ANOTHER SOURCE INPUT

Oct 13, 2008 | Denon DRA-397

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