Question about Pioneer VSX-D704S Receiver

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Vsx-d704s When turned on it reads over load

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Re: vsx-d704s

There is a problem with the apeakers, the speaker feed wires or worse case is a blown audio output stage circuit in the amp. Good Luck

Posted on Apr 08, 2007

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I can't get my tuner to work, but everything else works fine. All I get is static went I turn to the radio stations on both FM/AM

If you are in a fringe area you might need an external antenna to work with your tuner. Happens.

Oct 15, 2015 | Pioneer VSX-D704S Receiver

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I have a pioneer vsx-d704s reciever and when it is at a very low to 0 volume i get a low level scratching only on the left side. im not sure if it goes away when i turn it up or not but i dont think so

The volume knob is dirty. Behind the face of receiver the "pot", (as they are called) needs sprayed with contact cleaner. I use CRC QD contact cleaner. If the volume is a slider your can use the straw type devise for pin point spraying in the slider slot with receiver off and unplugged. After spraying work the slider back and forth to distribute the cleaner inside. If you have to remove the cover for a rotary "pot"spray while working the dial. Hope that helps..

Jul 16, 2011 | Pioneer VSX-D704S Receiver

1 Answer

Pioneer problem overload shutoff

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

Feb 26, 2011 | Pioneer VSX-D704S Receiver

1 Answer

My pioneer VSX-D704S won't turn on. Only The standby light turns on.


Your unit being stuck in standby mode is an indication that its having a power problem. Remove its plug from the wall and fix it back into the wall, then turn it on again. If its still stuck in safe mode, then the power supply board in the unit is the cause of the problem.

The power supply board might be defective and maybe that's why the unit won't power up. Its receiving power but it cannot transfer the current to the necessary part of the unit because a capacitor, diode, etc may have been faulty. Until these bad components are replaced, the unit might not come on.

To actually find out what's wrong, you need to disassemble the unit with a screw driver and check what's wrong. You will be needing a meter in order to test the components on the power board, once you detect any bad component, you can make necessary replacement at any electronics accessories store withing our vicinity. This is the only way by which you can detect the problem.

Of course, testing the power board with a meter will require someone that has the ability. So it you can't, then you might be needing the help of a repairman or you can call a friend that has the ability to help you out.

I wish you the best of luck.

Jan 17, 2011 | Pioneer VSX-D704S Receiver

1 Answer

Blown 125v 10amp fuse blown what is the problem?

The problem shall be in the Power section of the amplifier. Check for burned transistors.

Nov 20, 2009 | Pioneer VSX-D704S Receiver

1 Answer

Looking to down load a free manual for pioneer vsx 4800 user guide thanks

Here is the manual for the VSX-1019AHK that you have listed on the product guide. I did not find the manual for the VSX-4800.


Aug 22, 2009 | Pioneer VSX-1019AHK A/V receiver

1 Answer


It is in protection and will need to be serviced. Find a local AUTHORIZED pioneer service center.

Jun 10, 2009 | Pioneer VSX-D704S Receiver

1 Answer

Pioneer VSX-D411 receiver "Amp Error" message

Unfortunatelly your receiver has failed. The front panel is telling you one of the power modules is probably bad. Not an DIY type of repair. These parts are near $40.00, plus cost of replacing.
Look at options to replace your trusted receiver with a new one.
Good luck

Dec 28, 2008 | Pioneer VSX-D411 Receiver

1 Answer


Have the speakers disconnected and turn on unit. If it still shuts down due to thermal protection the amplifier IC pack is damaged. Amplifier IC is tied to one side of the power supply by design. The left channel is probably shorted at the MOSFET on the pack. Nothing you can do but have it serviced. This is a common PIONEER failure.

Apr 08, 2007 | Pioneer VSX-D704S Receiver

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