Question about Pioneer VSX-D509S Receiver

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Overloads all the time under 40db.

Pioneer VSX-D509S.
G'day Guys,
My Pioneer VSX-D509S shuts down with "overload" flashing away.
I have changed the speaker cable as the old ox-free cable was old and replaced with new ox-free cable. My JBL 150W speakers(made in the USA...not China) are fine but my 100W Wharfdales(made in the UK) the left one has blown. I replaced with a new set and the left one has gone again. If I use just the JBL's they work fine but still it overloads at under 40db, over 40db works okay. I have only used in surround mode once many years ago as I found it very hard to set up and still do, remote is so big and hit the set up only works when it wants...you sit press set up again and again. I had Kenwood before and worked with no problems.
I only got Pioneer because my new DVD player(Pioneer DV-355) was black and the Kenwood was silver...lol, like to have all the same colour.

Glen.
Australia.

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Hi Glen. The thing with these new units is that they are so fussy when it comes to frequency range on the speakers. The frequency has to be within the range that the amplifier specifies, or you'll have problems. I suggest that you check your manual to see what the required frequency shuold be and take it from there. I have one myself and love Pioneer

Posted on Aug 03, 2009

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1 Answer

How to 'fix' a Pioneer VSX-D509S that stopped working when we lost power to our house. Suggestions?


Try holding down the advanced surround button and power button. If the unit locked itself into protect, this should clear it.

Jan 03, 2013 | Pioneer VSX-D509S Receiver

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Poweroff and shut down


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 a root cause for intermittent shutdown.

May 04, 2011 | Pioneer VSX-D509S Receiver

1 Answer

Pioneer VSX D710S, I hook everything up and turn the unit on, after about 5-10 seconds it flashes POWER OFF and shuts down.


I wouldn't hold my breath waiting for free detailed circuitry.


A precise make and model might yield more-specific answer.


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 24, 2011 | Pioneer VSX-D710S Receiver

1 Answer

I keep getting overload message and then reciever shuts off, trying different things like disconnecting speakers and power, no fix yet, any ideas? thx


If this amp is being overworked to much(playing music or whatever at high volume) it does this cooling it down could help or just leave it off for a hour or so it should work again then, i know this coz i have the same amp

Jul 31, 2010 | Pioneer VSX-D509S Receiver

1 Answer

I have receiver VSX-D509S. Have had it for


Check for a bad ground on the input circuit board. you will need to re-solder them. Remove top cover and rear panel (many screws on rear panel) The input board can easily be accessed and resoldered. you should also check for a bad ground on the speaker jacks. If it is not repaired, sooner or later you will probably need an output IC. good luck.

Oct 16, 2009 | Pioneer VSX-D509S Receiver

1 Answer

Pioneer VSX-D509S keeps shutting off


Aside from any intrinsic problem with your receiver, the usual suspects are;
1) Poor receiver ventilation. 2) Very high levels of bass. 3) Shorts in the speaker wiring. 4) A rubbing loudspeaker voice coil.

Sep 20, 2009 | Pioneer VSX-D509S Receiver

1 Answer

I turn on my Pioneer VSX-D509S 5.1 surround amp comes on for a few seconds and then it says "powering off"... and shuts off


Disconnect all your speaker wires from the back of the receiver and turn it back on. If it shuts off, you need to have it serviced. If not post a comment and I can walk you thru troubleshooting. Hope this helps

Jun 24, 2009 | Pioneer VSX-D509S Receiver

1 Answer

My pioneer reciever says overload


Bad news: it probable needs an amp ic (or output transistors). Unless you are very technically minded it's a job for a pro.

Mar 05, 2009 | Pioneer VSX-D509S Receiver

2 Answers

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.

Dec 08, 2007 | Pioneer VSX-D514 Receiver

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