Question about Pioneer VSX-817-S

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I have Wharfdale 4000 Xarus speakers connected to my Pioneer VSX 817, the last 6 months it keeps saying overload when i have the volume further than 40db. Never use to do it... and i have re wired the speakers and the amp, cut them, ensured no frays. Also tested the amp at max volume when speakers are detached (this does not cause an overload).... help please??

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Testing your amp at max with the speakers disconnected will not play a factor because there is no power being drawn so the amp is not being used. Those speakers are rated 90db and really pound but also draw a ton of amps. The key thing here is to keep it cool, cool, cool. Put a fan on it and keep your receiver on a hard surface with nothing stacked on top or anywhere within a foot of it. Keeping it cool will help prevent overloads or (protection mode). Back it down every now and them and give the system a rest for a few minutes. Double check the negative and positive connection on the speakers to the receiver. We all have hooked them up backwards sometime and this will have the effect you are expressing. What is the phase set at on your receiver? Set it down to "0" and go up to where it sounds best without distortion. One more very important thing. What is the Ohm switch on your receiver set at? Put the switch on 8 Ohm even though your running 6 Ohm speakers. That switch only steps down your voltage feed to the power selections which will hamper the overall dynamics and fidelity of your receiver. This switch is really not even necessary. Putting that switch at 8 Ohms will give you more headway and aid in keeping your amp cool.
Regards, Tony

Posted on Mar 24, 2011

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Pioneer vsx-d510


Disconnect all the speakers, and then check. Connect the speakers, one by one, and find which one makes it overload. That speaker is faulty. If you wish to get some details; check the site linked here. Pull up older posts.
http://electronicshelponline.blogspot.com/

Aug 15, 2016 | Pioneer Audio/Video Home Theater Remote...

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My Pioneer displays Overload


Overload is displayed when the amp draw is excessive, and can be caused by different faults.
when Overload is detected, the protection circuit will shut down the unit to prevent further damage.

The first thing to try is hard reset. Shut down the unit for about one hour to drain power completely.
This can fix minor problems that can cause overload, for example electrostatic charge accumulation on internal capacitors.

If that does not fix the problem, then you must find the fault.

Overload can be caused by shorted speakers, wrong impedance speakers, or by a contact on speakers wiring.
Check speakers connection and test different speakers with 6, or better 8 Ohms impedance.

Another test can be done by unplugging all speakers, and reconnecting and testing them one at a time, at a very low volume.

If the speakers are OK, then preamp, shorted input/output connectors, main power supply or faulty output transistors can draw too much amps causing overloading.

In that case it is recommendable contacting Pioneer at the number listed on the owners manual.

on Jun 22, 2009 | Pioneer VSX-D608 Receiver

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Dear Sirs, I have a Pioneer AV Receiver model VSX-817 and is connected to Monitor Audio Speakers (Fronts: BR5, Center: BR-LCR, Rears: BR1), Sub: MS309 (Mordaunt Short). I have connected each front...


Did you remember to remove the shorting link on the MA BR5 speaker terminal ..When you biwire the speakers you should remember to loosen the speaker terminal nuts and remove the shorting link plate between the HF and the LF terminals or you will short the amplifiers two channels together through the link. And modern amplifiers will take a lot of abuse at low volumes but at high volumes the protection circuit will turn off the device.

Apr 10, 2011 | Pioneer VSX-817-S

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.

Jan 25, 2011 | Pioneer VSX-817-S

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Receiver keeps turning off, says power overload. Can not adjust volume up or down with knob or remote. Just stays in the 90's


Maybe you have wrongly connected speakers and short-circuited the amplifier. Try disconnecting all speakers and then test if the receiver stays powered on or not. If not, then there is some problem and it needs repair.

Mar 07, 2010 | Pioneer VSX-D509S Receiver

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Receiver shuts down when setting volume above certain range.


disconnect all your speakers and if it still does it, yes, take it to service. if not, check all your speakers and wires. good luck

Feb 09, 2010 | Pioneer VSX-815-K Receiver

1 Answer

My pioneer amp vsx d508 reads overload.what to do?


Sounds like a bad amplifier IC.
Unhook all speakers at the back of your pioneer. turn it on and turn down the volume. If it's no longer in overload you have a bad speaker or speaker wires touching somewhere.
If its still in overload it's prlobley a amp IC and will cost between $25-$60 just for the part if you can replace it yourself.

Dec 27, 2009 | Pioneer VSX-D508

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VSX-D608 Overload and shutdown


Overload is displayed when the amp draw is excessive, and can be caused by different faults.
when Overload is detected, the protection circuit will shut down the unit to prevent further damage.

The first thing to try is hard reset. Shut down the unit for about one hour to drain power completely.
This can fix minor problems that can cause overload, for example electrostatic charge accumulation on internal capacitors.

If that does not fix the problem, then you must find the fault.

Overload can be caused by shorted speakers, wrong impedance speakers, or by a contact on speakers wiring.
Check speakers connection and test different speakers with 6, or better 8 Ohms impedance.

Another test can be done by unplugging all speakers, and reconnecting and testing them one at a time, at a very low volume.
No more than two 4 Ohms speakers can be connected to the unit, or you will get overload.

If the speakers are OK, then preamp, shorted input/output connectors, main power supply or faulty output transistors can draw too much amps causing overloading.

In that case it is recommendable contacting Pioneer at the number listed on the owners manual.

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Vsx-517 keeps going into overload mode!


Try this:
1. Turn off the receiver.
2. Disconnect all the speakers from the back of the receiver.
3. Turn on the receiver. Does it still go into overload? If so, it may need repair.
4. If not, turn the receiver back off and connect one speaker at a time and turn it back on.

Most likely one of your speaker cables is shorted out causing your receiver to get overloaded. Or, one of the speakers is damaged, having the same effect.

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Disconnect the speaker leads and see if this stops happening. If it does, connect up the speakers till the problem pops up, and that speaker that makes the problem happen is most likely bad. If the problems still happens with no speakers attached, then there is a problem in the audio output amp, and is going to need service , Good Luck

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