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Yamaha RX- V373 The protection circuitry has been activated 3 times consecutively and as a safety precaution, capability to turn on the power is disabled.

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Posted on Jan 02, 2017

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squish22
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SOURCE: 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.

Posted on Aug 09, 2012

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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.

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Htr-3064 reset power on


I had a Power surge in Brisbane this week and found my YAMAHA HTR-3064 AV receiver unresponsive. Thanks to the Squish22's post, I tried the above approach, which is also listed for another Yamaha model (RX-V667) Unfortunately nothing happened. Another post suggested holding the 'straight' button as you power up to go into "advanced" menu (under DILLIGAF's post.) This also did not work.
I thought I'd try pressing all 3 buttons and powering up, which worked a treat. so here's exactly what I did:

Yamaha HTR-3064 - Protection mode reset:
  1. Remove the Power cord form mains power and wait 10 seconds.
  2. Plug cord in and turn on wall socket power.
  3. While holding down "info", "straight" and "tone control" buttons, press "main zone" power button. I got a click and it was good to go from there.
I had all of my speakers unplugged at the time and tested off the headphone jack before plugging all the cables back in again. Not sure if I needed to unplug everything, but I was about to dismantle and look for a fuse when I tried this method.
Saved me a new system / service fee. Hope it helps you too.
Thanks Squish22 and DILLIGAF for the head-start!

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Usb crashes after playing several music and stops loading contents from usb. I had to turn the power off and on again to load. Is there any latest firmware for Rx v 373 yet?

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Need manufacturer's setup code for Yamaha AV Receiver RX-V373


Using 1056B03 universal remote from Time Warner. Several codes actually will turn the unit off and allow volume control. Or..I can turn on and volume control. Can't do both. I tried to use the receiver codes in the vcr mode, but the remote rejects receiver codes (i.e. only accepts vcr codes).

It looks like one or the other, not both.

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Yamaha receiver picture disappears and reappears when changing volume


I had the same problem with HDMI input to the RX-V373 from a DirecTV receiver. The RX-V373 volume display and menus on the screen are HD only, which forces the monitor to switch modes when viewing SD.

My solution was to turn off 480i and 480p signals from the DirecTV receiver, and also turn off its native output. The DirecTV receiver then upconverts SD signals to HD. Changing RX-V373 volume then doesn't affect monitor video mode.

May 10, 2012 | Yamaha Audio Players & Recorders

1 Answer

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

After power outage, the units internal saftey switch has activated. How do i reset the reciever? It's a Yamaha RX A1000


If the protection circuitry has been activated 3 times consecutively you may have to contact Yamaha as it says in the Troubleshooting section of the manual.

http://usa.yamaha.com/products/audio-visual/aventage/rx-a1000_black__u/


Generally speaking, an amp attempts to protect itself from heat, shorts, overloads and operator exuberance by refusing to turn on or stay on.

Overloads can be from excessive periods of high output or marginally low impedance loading by the speakers; and shorts would be wiring issues or a speaker blowing up.

You should be able to feel if it's hot. WHY is it overheating? Make sure it has sufficient ventilation on all sides and that vent holes are not blocked by dust balls. Ensure the fan (if equipped) is running as designed (some only operate on demand). Clean dust and debris from it.

If the amp comes back on after cooling, you're lucky. They only have so many self-protection cycles in their lives so continuously resetting or cycling their power without addressing the cause can do more harm than good.

If it protects immediately on a cool power up you should disconnect the speaker connections and try it 'naked'. If it comes up then diagnose which lead(s) are shorted. If it does not come up the problem is internal and should be left to an experienced and competent hands-on tech.

Check for loose speaker connections at the speaker as another possible root cause for intermittent shutdown.

Jul 27, 2011 | Yamaha RXA1000 Receiver

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