Question about Pioneer VSX-D1011 7.1 Channels Receiver

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When turning the device on, it shuts down after 10 - 20 seconds. Sometimes it is not possible to turn receiver on at all and on very few times, I can turn it on and play a whole cd without problems...

I have tried disconnecting speakers (2.0 setup now), opened up the device and measured the main switch, hoping it was faulty, but it was not.

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  • Contributor
  • 18 Answers

Some receivers have a heat sensor circuit. It may be faulty. The transistors take about that long to heat up. It can prevent power intermittently. What brand model?

Posted on Nov 26, 2014

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  • Audio Service Clinic Nov 26, 2014

    I hate to comment on someone elses solutions, but as I worked for Pioneer for over 6 years as well as another 34 years in the industry, as their Audio Field Service Engineer, I can say for certain, Thermal sensors are mounted to the Heat Sink(aluminum bars that the output transistors are mounted to( you can see them through the top cover), do not need need any "warm up time". They simply measure the tempurature on that heat sink, and once they reache a certain temperature, that information is passed to either the main microprocessor, or the display microprocessor IC(two computers with your receiver) that cause to unit to shut down to protect the amplifier stage. That is not your issue here. There are may oof these microprocessor IC, due to the complexity of the receiver, as many as 5-7 ICs. There is an issue that I beleive your receiver has. It is know as DC Offset(as in a damaged amplifier) If DC voltage appears on the speaker putput line, it signals the Display microprocessor, which in turn, signals the main microprocesor to sitch off the power, until the problem is correct, to one, protect the speakers for damage, or further damage to the amplifier. This is not a DIY repair, It is very complicated circuitry. and if you are prepared and equiped, you will likely cause more damage by troubleshooting. If you need further understanding, or would like to inquire about a repair, please visit my website at audioserviceclinic.com. Thank you.

  • Audio Service Clinic Nov 26, 2014

    I hate to comment on someone elses solutions, but as I worked for Pioneer for over 6 years as well as another 34 years in the industry, as their Audio Field Service Engineer, I can say for certain, Thermal sensors are mounted to the Heat Sink(aluminum bars that the output transistors are mounted to( you can see them through the top cover), do not need need any "warm up time". They simply measure the tempurature on that heat sink, and once they reache a certain temperature, that information is passed to either the main microprocessor, or the display microprocessor IC(two computers with your receiver) that cause to unit to shut down to protect the amplifier stage. That is not your issue here. There are may oof these microprocessor IC, due to the complexity of the receiver, as many as 5-7 ICs. There is an issue that I beleive your receiver has. It is know as DC Offset(as in a damaged amplifier) If DC voltage appears on the speaker putput line, it signals the Display microprocessor, which in turn, signals the main microprocesor to sitch off the power, until the problem is correct, to one, protect the speakers for damage, or further damage to the amplifier. This is not a DIY repair, It is very complicated circuitry. and if you are prepared and equiped, you will likely cause more damage by troubleshooting. If you need further understanding, or would like to inquire about a repair, please visit my website at audioserviceclinic.com. Thank you.

  • Audio Service Clinic Nov 26, 2014

    Well, I guess Fix Ya's system doesn't like long answers, and I'm about the only one that will "push the envelope". There maybe a simple fix you should try first before worring about what I previously wrote. There is a procedure, in your owner's manual, known as Factory Reset, or Return to Factory Defaults. It is located in your owner's manual, usually about 2/3 the way through the manual. You may find that performing the precedure, clears your unit from any mispressed buttons(which I doubt) or any trouble faults picked up by any of the microprocessors. Try that first, before you sweat the hard stuff, which is whatr I do for a living! :-)

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there may be broken soldering points in the receiver take it to a workshop or open it your self and check it on the power source

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SOURCE: Overload

try turning the unit off in standby mode then hold down the enter button and then the power button for about 10m seconds that should reset the unit depending on how new the unit is it sometimes has a digital saftey setting but i doubt that would cause it to do what you are saying

Posted on Apr 02, 2008

  • 1 Answer

SOURCE: Overload...

Pioneer posted this on it's Canadian Web Site:

Poor wiring connections, bad wires or a bad speaker may cause this. As you increase the volume, you will increase the amount of current you are drawing from the receiver. To troubleshoot this issue, try the following:

  1. Disconnect each speaker wire connection. Inspect for any frayed or damaged wiring and replace it.
  2. Check the impedance of the speakers; make sure they are properly rated for your stereo. In most cases, they need to be 8 ohms. Only a few Pioneer receivers will support lower impedance.
  3. If the problem still continues, try these steps:
    1. Turn the receiver off.
    2. Remove one speaker.
    3. Turn the receiver on.
    4. Increase the volume.
If the receiver overloads, repeat steps 1-4 (selecting a different speaker each time). If you disconnect a certain speaker and the receiver no longer overloads, have this speaker checked at a service center. It could have a bad speaker component, like a tweeter, sub-woofer, or even a bad crossover.

Posted on Mar 10, 2009

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