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How do I fix my Yamaha amp it comes on but cits off after 3/4 seconds

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It sounds like the self protection circuit is shutting it down. Take it to a service shop for repair. A lot of times this is caused by a blown output transistor. Of course more info would not hurt, Yamaha makes a lot of different amps.

Posted on Nov 25, 2014

  • Shane Nobbs
    Shane Nobbs Nov 25, 2014

    Can this not be fixed at home ?

  • Shane Nobbs
    Shane Nobbs Nov 25, 2014

    And its a 5630

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How do I reset my yamaha rx-v671 receiver?


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 Yamaha DSP A1 after switching ON goes OF itself after 2-3 seconds! Please give me advice what to do Thanks, Alex


Register and download the manual for free at retrevo.com

http://www.retrevo.com/support/Yamaha-DSP-A1-Amps-manual/id/319ag811/t/2/

See Page 73 Troubleshooting.

Generally speaking, an amp protects 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.

Mar 06, 2011 | Yamaha DSP-A1 Receiver

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I have a HTR-6130 receiver the power and standby turns on only for 3 seconds and turns off . Bouth useing remote or unit standby/on i need to know if i can fix this or who can it only turns back on if i...


Generally speaking, an amp protects itself from heat, shorts and overloads. Check for loose speaker connections.


Overloads can be from excessive periods of high output 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 hands-on tech.

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1 Answer

'clicking' off a few seconds after turned on


Does the receiver work OK?
These are probably electromechanical switches (called relays) which yamaha uses a lot. They use electricity to connect/disconnect something by magnetic force and this causes the "clicks". It is used for example to connect the speakers to the output of apmlifier only after it has finished initializing to protect both the amp and the speakers.
When I turn on my RX-V465 I hear at least one click, it is probably connecting power to the amp. When turning it on with Radio button on remote I hear 3 clicks over 2-3 seconds.
So these clicks are normal and nothing to worry about. They occur also when you switch to the PURE DIRECT mode.

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


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

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Yamaha HTR-5940 turns off after one second.


HI my Yamaha is working fine exept input selector , I selilng it for parts 45 , amp working fine exept inputs ( one milti channel in works fine) korrado6@hotmail.com

Jun 21, 2008 | Yamaha HTR-5940 Receiver

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Is it worth fixing at this cost?


your repairman told you 2chips? the output stage of this amp should have 2pairs of power transistors each channel. that means 4pieces. and besides, my experince in Yamaha(where i worked before) not only we replace the poweroutput transistors but also the drivers. it doesn't cost that much. nor the service fee depends in your area but the cost of power transistor shoud be around US 0.95 that was 5years ago.

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No zone 2 sound coming from yamaha amp rx-v861


We had the same problem - I think it was reset when the power went off in a storm. Went to Yamaha website (http://www.yamaha.com/yec/faq/faqdetail.html?CNTID=206010&CTID=5009135) and found the following worked:

Assigning the receivers internal amp for Zone 2:
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  2. Press the [SET MENU] button on the remote control.
  3. Arrow down to Manual Setup and press the [ENTER] button on the remote control.
  4. Arrow to the Sound Menu option and press the [ENTER] button on the remote control.
  5. Arrow to Speaker Set and press the [ENTER] button on the remote control.
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  7. Press the [RETURN] button on the remote control to exit out and return to the Manual Setup.

Feb 16, 2008 | Yamaha RX-V661 Receiver

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