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Overheating receiver My pioneer VSX-816 receiver overheats and causes one of the speakers to malfunction. The fan inside the component may not be working.

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I opened my receiver up and found the fan not working. So I took the front of the unit off so that I could access the fan. It looked brand new so I don't think it ever worked. I checked the fan connection with a volt meter and found 12 v only the fan still would not run. I took the red wire coming from the fan and put it to ground. Cut the yellow wire off the fan. and the black wire to the middle of the connector on board. there the fan worked. now I have a working fan. maybe this could be your fix just don't lose the screws and remember how this comes apart. I know the fan works not so sure it fixes problem but at least the fan is working so thats a start. At least it won't overheat. hope this helps

Posted on Nov 22, 2009

  • electricgary Dec 03, 2009

    just so everybody knows my problem seems solved no more problems as far as I can tell. I have left my receiver on for hours and hours and the speakers continue to work fine. this does work.

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If you can obtain an ohm meter, check the speakers by touching the leads to the meter and see what it says. The meter should be set to measure < 1 kohm. If it shows lower than 4 ohms you have a bad speaker. If you have multiple speakers on one channel then it cannot handle the drop in resistance and it is overheating.

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I have a pioneer vsx 2016. I'm facing an overheating problems on the AV. Just switch on the AV for 10 minutes and the overheat messag will appear on AV screen and the device will shut of.


http://audio.manualsonline.com/search.html?q=vsx2016

Does it indicate a problem with the fan? (Page 67)


FAN STOP

blinks in the display, then the power automatically switches off.


• Something is obstructing the fan. Remove the obstruction and try switching the receiver back on. If the

fan is still not working, or you can't remove the object, unplug the receiver from the wall and call a Pioneer

authorized independent service company.

• The fan is malfunctioning. Unplug the receiver from the wall and call a Pioneer authorized independent
service company.

Check for dust balls in and around it. Disconenct power before exploring inside.

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1 Answer

My pioneer vsx-816 sshows overload then shuts down,it happends when the volume is around 42 i have wharfedale speakers


Generally speaking, an amp protects itself from heat, shorts and overloads.


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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Pioneer VSX 816 X. Speakers have have static coming out of them and sound comes and goes from speakers. There have been instances when I'm watching a movie and I only have one speakers with sound. Very...


Hello
The output stage circuit of your Pioneer should be checked well to detect this fault. As sound output comes right at first, and it goes of intermittently, distorted and interrupted, there must be some overheating components are there in the audio output state of your set. As you know, there is no one sentence answer to any electronic devices' fault, as they are composed of thousands of components together, by soldering technique. Each and every component in it will and should work properly to what it is desigened to, otherwise fault will occur. There is an overheat protection circuit composed with the audio output section of most hi-watts amps. If this circuit has some trouble with it, the output section components will overheat, shutdown, distorted sound and such faults will occur.
It is very easy to repair a 'dead' set, than this type of faulty set. One have to check each and every component and should detect out the faulty component. It is really a very skilled work, and one must have thorough knoledge in electronics and proper measuring equipements to go up. A very high quality digital multimeter is a must to follow this fault. Moreover, a sound knoledge in following the schematic diagram of the set, which will look entirely different to that of the circuit boards inside.
Eventhough, this fault is very simple and no costly components has not burned out till now, I advice you to get this set repaired by any experienced service technician, or by the authorised service center for Pioneer at your town. Never switch ON this set till this fault has been rectified. It may make things more worse. For anyone, whatever experienced he or she may be, will take some time to detect this fault. OK.

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Dan

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