Question about Denon AVR-1905 Receiver

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System turns on then the display says poweroff , this takes about 4 secs then the system shuts down,,, When turning on the power the system searches for the setting and immediatly shuts off

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  • humph1964 Jul 03, 2008

    my denon AVR 1905 also when powering on says AV surround reciever then powers down with the power button flashing red.Ive checked all terminals,none are touching and i,ve even unplugged everything and its still the same.I,ve used this amp practically every day for 3years or so with no probs.The only thing i do differently over the last few months is switch it off from standby on the main plug

  • hopalongis Jul 07, 2008

    I also have a denon AVR-1905 with the same problem. All the lights come on it clicks two times then it shuts down. I have tried everything I even took it to local shop and they said the power board would have to be replaced but said it would cost more for the board then for a new receiver. Before leaving the tech wispered that they really didn't know what was wrong thats just the answer they give when they have no answer.


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Hi,,,thanks for your good response...Understnding a 7.i surround system through chat is difficult...that ws why i couldnt get it right...if i was there at your place i would have solve that it in seconds...anyway you got it done by yourself thats what we wanted...thanks again

Posted on May 26, 2008

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1 Answer

My friend kept turning it up and i kept turning it back down then it just said poweroff

Sounds like your "friend" has cooked something. It could be one of your speakers (do they all sound ok for the 5 seconds it runs?), or it could be the receiver....
I would try disconnecting all the speakers and see if it stays on. If so, it may be one of the speakers. Connect them one at a time, and see if you can tell.

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1 Answer

How do i keep the power on when it goes out in five seconds?

You can't. It's the systems' internal safety circuit shutting it down friend

Not an expert on those machines but it sounds like the power output stage is faulty and overheating causing a shutdown.
Needs new output stage or repair ?

Sep 14, 2014 | Boston Acoustics Avr7120 A/v Receiver

1 Answer

Why does my pioneer stereo say POWEROFF and not turn on

Most likely it is going into a safe mode as one of the speaker connections might be creating a short in the audio amplifier. Check speaker terminals connections. The model number of the unit would be helpful to know.

Aug 15, 2014 | Audio Players & Recorders

1 Answer

After turning on my reciever i get a flashing poweroff on the display. unit then shuts down

check your speaker connection. if that doesn't work check your fuse to make sure it's good.

Mar 03, 2011 | Pioneer VSX-D510 Receiver

1 Answer

When I turn my optimus STAV-3770 on it reads poweroff and then cuts itself off..please help me

unfortunately most stereo mfgs. install a protect (shutdown) citcuit if it detects an internal short (bad amplifier )or a external short( bad speaker)....disconnectl speakers see if it still shuts down if so there is a genuine component failure inside..however if it stays on then in all likliehood its a bad speaker

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VSX-D457 Display's power off and then shutdown

Most likely it needs one of the output ICs. But check for cold solder rings on the ground connections of the input board. Est. for it to be repaired $100-$120

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Yamaha RX-V690 powers up and turns right off??????

All the speakers are connected at both ends?
If so, you have a power amp electrical break.
Not an easy fix.

Jan 14, 2009 | Yamaha RX-V690 Receiver

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I found the solution for me! I had the problem where after 1-5 seconds, my receiver would simply shut down. Twice now I've solved it.

The problem is most likely that you have speaker wire that is touching the opposite terminal or coming close to doing so. Check all your speaker wire terminals and make sure that they are not touching at all or coming close.

Also, make sure that your speaker wires are truly in speakers. If you have speakers plugged into the back of your receiver and then sitting out on the other end, that could be the problem as well.

I hope that helps - it solved it for me!

Nov 12, 2007 | Audio Players & Recorders

1 Answer

Vsx-d506s problem

It may be a PROTECT MODE. Check is your other equipment properly connected to receiver.

Oct 09, 2007 | Pioneer VSX-D506S Receiver

3 Answers


When you turn on receiver it will power off. Poweroff shows up and than turns off. if the front panal reads over load the output ic pac001a is defective i had repaired this model before

May 29, 2007 | Pioneer VSX-D710S Receiver

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