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My Denon DRA F101 has a problem when I press the on /standby button on the tuner. The switch doesnt always switch on, and quite often clicks and stays red.

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  • 2 Answers

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Posted on Jan 02, 2017

Foxyjay
  • 13 Answers

SOURCE: Denon AVR-3805

If your amp looks like it's going to work as normal (ie the front display lights up as it should etc), but then the amp goes into protection mode when the anti-thud circuit times out, then I know what's likely to be wrong.

It's one of the power amplifier channels which has gone faulty.

I just found this out after having this problem with my AVR-1906.

I took the amp apart and de-soldered the suspected channel power transistors (centre channel in my case).....and hey-presto! it fired up as normal (obviously the centre channel would be out of service).

I have ordered the replacement transistors from Farnell (UK) at a miserly cost of around £2-£3 each.

Just waiting for them to arrive.

An alternative is, if you don't use all your channels, take the transistors from a known working but not needed channel and swap them over with the duff ones.

Hope thats of use!

Posted on Aug 16, 2008

  • 163 Answers

SOURCE: Standby light stays red and will not turn unit on.

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

  • 1 Answer

SOURCE: Denon DRA 397 Won't Turn On

me too did you ever get it fixed

Posted on Jan 06, 2010

  • 1 Answer

SOURCE: Denon DRA 325R has no bass response turn the bass

dra325r has no left chennel right side works fine help

Posted on Jan 04, 2011

  • 163 Answers

SOURCE: My Denon AVR-75 seems to stay in standby (red standby light is on) and I don'd get surround sound through it. How do I get it out of standby?

if the receiver does not power on from standby there is a problem like bad power supply or even bad macroprocessor. You need to bring it to a service center for diagnosing. 10-years old receiver, maybe better to buy new one.

Posted on Nov 27, 2011

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I have a denon DRA-397 receiver and when I try to bring it out of standby, it attempts to restart then returns to standby after the tuner starts up. The standby button has a flashing red ring rather


When the power indicator is blinking red, there are a few possible issues. 1) The unit has overheated internally due to insufficient air flow around the unit. Let it cool down and then make sure that you have it in a well-ventilated area. (If you keep your home theater devices in a "closet", make sure that you have good air flow so that the heat from all the devices doesn't build up.)

2) The speaker wire cores are touching each other or the back of the unit. The DRA-397 will shut itself off if it detects a short of the speaker wires. Check the connections and make sure that the wires are not touching where they shouldn't.

3) An internal short or fault has been detected. In this case, contact Denon for repair.

I hope this helps.

Cindy Wells
(Based on setting up our systems, it can be easy to have a loose speaker cable.)

Oct 17, 2012 | Audio Players & Recorders

1 Answer

I have a Denon DRA 397 receiver and when I power it up the standby light goes on but nothing else powers up?


If you are not pressing the power button on the remote that may be the problem

Apr 11, 2012 | Denon DRA-397

1 Answer

My denon DRA-295 does not remember stations I set to memory when completely turned off. If on standby all goes well. A month after the problem mentioned above the tuner started to modulate reception and...


My better guess is a CMOS chip is either bad or there is a cold solder connection in the vicinity. If the power supply is bad, the receiver would not power up.

Nov 23, 2010 | Denon DRA-295 2 Channels Receiver

2 Answers

Denon DRA-37 Receiver-Remote lock on. Need to unlock.


Refer to the "Initialization of the Microprocessor" section of the manual (page 16 of the PDF version of the manual).
1) Turn the unit OFF using the On/Off switch (not the standby switch).
2) Depress both the Speaker A and B switches, and turn the Power ON.
3) The entire display should flash at 1-second intervals. The microprocessor should be reset, and the remote should be unlocked.

Jan 23, 2010 | Denon DRA-37

1 Answer

The standy light continues to stay on


My CD player does the same thing. i need to press the power off button 2X then it'll power off. If it keeps doing it the easy way to correct it is to hook all you devices into a surge breaker and power off the unit.

Apr 11, 2009 | Denon DRA-685 Receiver

1 Answer

Standby light stays red and will not turn unit on.


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.

Apr 05, 2009 | Denon AVR-1906 Receiver

1 Answer

Stereo receiver is in a Panel Lock On mode and will not stay on


Hi, Press the B and the Mode buttons and then hit the power button.  This should unlock the panel....it worked for me.

Apr 12, 2008 | Denon DRA-397

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