Question about Denon AVR-587

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Denon 528 amplifier cuts out after a few minutes

Denon amplifier cuts out I turn it right back on after a few moments it works for a while and then turns off again

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Disconnect the speakers and see if amp will stay on. if this the case maybe suspect one of the o/p amps

Posted on Feb 08, 2010

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1 Answer

Why does the amp stop working while playing?


If this is an amplifier, you have a bad component that is most likely a capacitor.

Aug 07, 2015 | Audio Players & Recorders

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Distortion appears while trurnning up the volume on right channell


You just need to replace your volume knob for a better one , a couple of bucks 10 dollar

Jun 18, 2014 | Denon PMA-100M Amplifier

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We have a DENON L.C twin transformer amplifier PMA-735R that has an input selector that freaks out now and again. Recently it has gotten worse, it just goes back and forth between tuner and cd etc. for...


Hi Readers to of Fixya,
This entry is January 22, 2016.
I own a Denon PMA 735R which I bought new in 1999, it is very good Amp; starting about a few years ago the input selector would occasionally randomly jump from CD to Phono to Tape etc., but would always end up back at CD so it was not terribly annoying until a few days ago when it started happening all the time. I am a very knowledgeable electronics person (I built musical keyboards at one time) so my thought was just that it was a dust problem and I started with that premise. I fixed it using an Electrical Parts Cleaner spray and here is how I did it:
I unplugged it, removed the CD input RCA cables and removed the L & R speaker cables and took it off its shelf and set it on a towel on my soft sofa; I removed the casing by unscrewing four big silver screws on the sides (my model is silver) and the three small black screws on the back top; I removed the Input Selector indicator knob on the front and the Record Out Selector indicator knob and the Volume knob, I then removed the small nut that holds the three of them tightly in place to the front panel; I then stood it on its back so that the front was facing up; I then sprayed my Electrical Parts Cleaner spray into the Input Selector indicator post liberally and then put the knob back in place and kept turning the indicator back and forth for a few minutes to work the cleaner inside the post down into the circuit board connection; I did the same with the Record Out Selector indicator post and I did the same with the Volume post; I then put the small nuts back on the three posts and tightened them; I then put the knobs back on the three posts; I then stood it back on its normal upright position and put the casing back on and then the screws; I placed back on its shelf and hooked up the cables and switched it back on and played my CD's, it has been working perfectly fine. The whole process took less than 30 minutes.I hope this helps.

Feb 20, 2012 | Denon Audio Players & Recorders

1 Answer

Output will cut out -- headphones work for a bit then they too cut out. Turn it off and don't touch the volume control. When you turn it back on it might work for a few minutes or it might not.


This is an indicatin of a circuit overload condition and is being handled appropriately by the protective circuit built into the output side of the amplifier. Have the problem fixed by an electronics shop to avoid blowing out or burning up your speakers and headphones. One thing to check at home is to make sure there are no shorted wires to the speakers you are currently using. Try different wires and a different set of headphones.
Hope this helps.

Feb 10, 2011 | Denon AVR-2802

1 Answer

I have a Denon AVR-587. It has worked fine for 2-3 years, but ever since I tried to connect it to a different set of speakers, it cuts out after a few minutes and I hear this loud clicking sound coming...


There is a short either on the speaker wires to the speakers or the speakers are defective (some sort of a short or too low of resistance). Lastly, check to see if a stray strand of wire is not touch the left and right terminals. Any short in the network (wire, lack of insulation, staple, screw, etc. ) will cause the system to clip.

Nov 10, 2010 | Denon AVR-587

1 Answer

I have a Denon AVR 1509 and when I turn the power on it flashed green but after about 2 seconds it cuts out and and then flashed red every 0.5 seconds.


Usually its the power output stage . You can visibly check it if theres a burned resistor on the output amplifier. On the base of the Power output transistor if the voltage is the same as the collector pin it will indicate a shorted power amplifier circuit.



May 20, 2010 | Denon AVR-1508 Receiver

1 Answer

I have a denon amplifier Model : AVR-2805G when i turn off the amplifier the volume for DVD player cannot be increased pls advise


you have to hook the dvd player directly up to the tv in order to get volume. when you turn the amplifier off, it's going to cut off the volume to the dvd player.

Jul 31, 2009 | Audio Players & Recorders

1 Answer

Amp turns off after about 5-10 minutes of use for a few seconds


One of two things...Amp is going into overload protection (should be indicated by a light on the amp), or you have insufficient power going to the amp....if this is the problem, try a 2 farad capacitor on the input power line to the amp.

Mar 12, 2009 | Kenwood KAC-8104D Car Audio Amplifier

1 Answer

Nad C320 right channel stops working then comes back again


This sounds like the "pre-amp" section is cutting out or there is some interruption in the signal path. A few things to try:

1) With the unit off, try "working" the volume,balance and tone controls. This means, turn them up and down a number of times to clear any debris that may be in the controls themselves.

2) Work the input selector switch the same way if it is a rotary switch.

3) Try turning on/off the tape monitor switch a few times.

4) Keep track of whether this problem is sensitive to heat. Does teh channel shut down more quickly once the unit has been on for a while?

Lastly, if you can solder, look for any solder joint that appears grainy or has rings and resolder it.

Update this with your results and we'll continue on...

Thanks,
Dan

Jan 15, 2009 | NAD C320 2-Channel Amplifier

1 Answer

Denon AVR-4802R automatically shuts off in multi-zone mode


i had the volume of the multi-zone tuned too high and was attenuating it in an external control box. Once i took the multi-zone volume down to -25db, the problem went way. My main zone was operating around -35db so did not have the problem.

Nov 23, 2008 | Denon AVR-4802 Receiver

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