Question about Onkyo HTR500 Receiver

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Will not Turn on

Hi. Have unit where the Standby light flashes. When try to turn on, it goes on for less than 5 seconds then automatically turns itself off. I have unplugged and plugged in.

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Re: Will not Turn on

Unit has circuitry problem, have unit checked and repaired

Posted on Apr 27, 2008

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3 Answers

Pioneer SC-LX75 with a flashing green MCACC

dear, I have a problem when we have been listening to music through headphones turned on the light mccac (amp.err.) and then blocked pioneer sc-lx75. the unit can no longer turn a blue light constantly flashes. I've tried all the variants of the wires however unsuccessfully. device was purchased in Germany and is still under warranty however I live in Bosnia and here we have an authorized representative. my mate who is a wizard for technique will look at it blindly, so I ask if we can roughly tell which way to go. I know this is uncommonly what you ask, but the way to Germany and back to me pretty much cost time and money. Please help if at all possible, greeting dado from Banja Luka.

Nov 24, 2011 | Pioneer Audio & Video Receivers

1 Answer

Standby light is flashing rapidly and I cannot turn on

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In some cases, the STANDBY indicator may blink slowly, twice per second. In this case, turn off the unit, unplug the power cord, and check the following points.

Make sure the speaker cables are not reversed and connected to the wrong sides (+ and -) on the unit.

Make sure the speaker cables connected to the unit are not shorted. (Check both the unit end and the speaker end.)

Make sure the volume does not exceed the level that the unit is capable of producing.

When using the unit in a rack or other enclosed space, heat may build up inside the unit and cause a fire. When installing the unit, be sure to leave suffi cient space between the top, back and both sides of the unit and walls or other AV components to prevent the internal temperature from rising.

After checking these points, plug in the power cord and use the remote controller to turn on the unit. Turn down the volume before resuming playback. Confirm that there are no problems with the speaker connections and playback performance.

If this symptom recurs, request service at your nearest service center.

In rare instances, the unit may enter standby mode and the STANDBY indicator may blink rapidly, 8 times per second. In this case, unplug the power cord and request service at your nearest service center.

Feb 27, 2011 | Marantz SR7002 6.1 Channels Receiver

1 Answer

Unit only stays on for 4 seconds then turns itself off.

This is a short or unstable ohm load. Remove all speaker wire connections to see if the amp will stay on.
If the problem goes away when disconnecting the speaker wires try this:
1) Check volume level on zone one and zone 2 if connected. If it is too high the amp will go into protect mode and shut off exactly as you described.
2) Make sure no wires are touching any other wire or the metal surface of the amp. This will cause a short and send the amp into protect mode.

Nov 21, 2009 | Denon AVR-1705 Receiver

1 Answer

After turning ON the power/standby switch, the unit(receiver) display comes ON (green light) then after approx.4-5 seconds the display goes OFF and the unit defaults back to the standby mode (red light). I...

Is the red light flashing at first?
The unit may be going into protect mode. Lets hope it has done the job and the receiver has protected itself from failure.
Protect mode can result from speaker wires touching each other or the Amps2_bing.gif metal case. Check that first.
It can also be caused by unstable ohm loads if too many speakers2_bing.gif are connected to any of the outputs especially zone 2.
If you can remove all speaker wires and turn the unit back on. If it stays on, turn the volume down on the main zone and zone 2 if connected. Then reconnect speaker wires.

Nov 16, 2009 | Denon AVR-485 Receiver

1 Answer

Goes to standby with fast blinking red light after 5 seconds

From my experience you need to replace the Hi power module

Sep 11, 2009 | Denon AVR-1905 Receiver

1 Answer

Denon AVR older receiver but worked fine; now

Did you try to reset the unit? Resetting the unit has fixed every problem I have ever had......turn off unit.....hold down A+B at the same time then turn the unit back on...hold buttons for roughly 3 seconds....Let me know if it works.

Aug 20, 2009 | Denon AVR-1908

1 Answer

When i power on the device, it comes on but goes off about 5 seconds later.


1st thing to check is for GOOD speaker connections at both ends
and not mixing A and B speaker wiring.

A Denon is usually a good brand. Might be worth servicing if need be.

Sep 20, 2008 | Denon AVR-1905 Receiver

1 Answer

The unit will only turn on foe a few sec, due the standby light

Just inside the unit your power cord goes into a blackbox (like a coil of wire) that regulates the actual power the unit recieves, this maybe faulty and needs to be replaced but if this unit is out of warranty this maybe more expencive than a new one, the unit will still stay in standby but when you try to turn it on it draws more power and the supply control won't let it. I have had one of these units that has had the same problem in my work and it proved to dear to repair. Sorry hope this helped. You could try bypassing it but you would probably blow the unit up.

Jul 25, 2008 | Onkyo TX-SR600 Receiver

2 Answers

Kenwood VR-405

Hi changeman5 Have you tried to do a full reset on the unit. Disconnect from the wall for 24 hrs. Then try again. If the problem persists, it may have power supply issues, or a DC offset problem shutting it down. If you are game, I could talk you through some more diagnostics...


Apr 01, 2008 | Kenwood VR-405 Receiver

1 Answer

Receiver won't turn on. All I got is the flashing light.

Try pushing these buttons at the same timwe for a few seconds:
Advanced Surround + Enter..

'Advaned Surround' will be found in the front panel and 'Return' near the multi-jog dial.


Mar 09, 2008 | Pioneer VSX-D712 Receiver

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