Question about Onkyo TX-8511 Receiver

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TX-SR800 circuitry protection activated

So how do we disable this feature or at least reset the unit so that we may able to use receiver again...pls help

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You maybe got to change the ICs audio amplifiers of the receiver they are damaged.

Posted on Apr 06, 2008


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How do I reset the protection circuitry on Yamaha RX-A820?

press and hold the 'tone control' and 'info' buttons and press power. This will release the protect. The first thing that show on the display will be the protect code to tell you why it shut down. If it turns right back off, then you most likely have a short in the amp that will need to be repaired.

Jan 25, 2015 | Yamaha Audio Players & Recorders

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Onyko tx nr616 receiver keeps shutting off. Only stays on for approximately 3 seconds. Can you help?

The amp protection circuit has been activated. Remove the power cord from the wall outlet immediately. Disconnect all speaker cables and input sources, and leave the AV receiver with its power cord disconnected for 1 hour. After that, reconnect the power cord and reconnect an input and a pair of speaker wires onto the unit. If the receiver still does not turn on than you will have to bring it in for service. Turn up the volume and if the receiver doesn't shut down, power off the receiver and add another pair of speakers. Power up the unit again and turn up the volume. If it doesn't shut down, power off the unit again. Now connect all your input sources and turn on your receiver. If the unit shuts down again, your unit will need to be further serviced at an authorized Onkyo service center.

Sep 30, 2014 | Onkyo Tx-nr616 7.2 Thx Certified Network...

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The protection circuitry has been activated 3 times consecutively and as a safety precaution, capability to turn on the power is disabled.

If there is no apparent cause for the protection mode activating (such as shorted speakers, burning smell, blown fuses, lighting strike or mains power surges), reset the protection as follows and see what happens.

Connect power cord to mains and wait 5 seconds or so. While holding down "info" and "tone control" buttons, press "main zone" power button briefly and release, but keep "info" and "tone control" buttons pressed for at least 3 more seconds. The unit should power up. Assuming the reason for the protection has passed or been fixed, the unit can now be turned off and then back on with the "main zone" power button to restore normal operation mode.
If the protector activates again, the fault is still present and the unit needs to be repaired, ideally by a Yamaha authorised repairer.
There are dangerous voltages present in high power amps and a lot of grunt in terms of stored energy - best left to trained technicians.

Apr 20, 2012 | Yamaha RX-V671 7.1 Channel AV Receiver

1 Answer

My onkyo tx-sr800 powers up and just when you think there should be sound it cuts off. whats up with that??

Sounds like it is failing its self test so it won't try to power anything. First step would be to disconnect the speakers, turn the volume control all the way down, then power it up. If it comes up OK, then you've got a wiring issue or a short in one of the speakers. If it still doesn't come up OK, then there is an internal issue in the circuitry - most likely the power amp, any you'll need professional repair help.

Oct 23, 2010 | Onkyo TX-SR800 Receiver

1 Answer

Onkyo TX-SV414Pro. No audio. Displays "Protect"

something is wrong either in one of your speaker connections or in the unit itself unplug for awhile to reset.try it again.make sure all connections are correct and nothing is touching.if that does not work it will be the unit itself

Jun 11, 2009 | Onkyo TX-SR803 Receiver

1 Answer

FM Frequency Steps


Appreciate the "Ask Me" and my compliments on the choice of an Onkyo TX-SR605.

Onkyos are not very common in my country. Often, they are imported from the US and since we follow US broadcasting standards, there would be no need for modifications particularly with the tuning steps.

To my knowledge, most manufacturers would be coming up with a single model but with:
  • variations of the firmware to suit the region/country of intended use; or
  • a service menu where the country/region of intended use is selectable; or
  • jumpers/bridges in the logic circuitry.
Simply, this is similar to having the unit with a voltage selector at the back for 120, 220 and 240 or an auto volt 100~240.

As to your concern, pls check:
  • if there is such a feature in the menu to change regional settings (the user manual may have this information);
  • firmware update, but rather than select US, pls select one appropriate for India;
  • a service manual where the logic circuitry would be shown and if there are movable jumpers/bridges for the selection of intended region/country (warranty may be void).
Hope this be of initial help/idea. Pls post back how things turned up or should you need additional information.

Good luck and kind regards. Thank you for using FixYa.

Aug 06, 2008 | Onkyo TX-SR605 Receiver

1 Answer

Onkyo TX-NR905 Protection Circuit Activated

The problem is not with the inputs. This unit is in protect because a problem has been detected in the output section. Try disconnecting the speaker wires and turning it on. If the unit remains on, there is a short in one of the speaker wires. If the unit still shuts down, there is an internal problem that will require repair. It sounds like this is a new piece. If so, it should be covered under warranty.

Keep us posted,

Jul 28, 2008 | Onkyo TX-NR905 Receiver

1 Answer

Fm tuner not workin in south africa

The unit will not outside the us.We have a different scan freq.

Mar 02, 2008 | Onkyo TX-SR800 Receiver

1 Answer

Tx-sr500 receiver

Hi,your fears are confirmed... the protection circuit is self resetting, and is operating because the amp will most probably have blown that channel as a result of the speaker wire short. At the risk of doing more damage(in the workshop,we always soft start an amp with output problems to prevent more damage)you could take the lid off, check and replace any blown fuses, be sure to use the same rating and type. If the problem persists, or the fuses fail again, it needs some expert attention. Off to the repair shop.... Good luck, and thanks for checking with FixYa

Feb 16, 2008 | Onkyo TX-SR500 Receiver

1 Answer

Onkyo tx-sr800 PROTECT mode

Hold video1 and press speakers A button, it will say "clear" If the message protect appears again, then its service time.

Aug 28, 2007 | Onkyo TX-8511 Receiver

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