Volume problem with VSX-D409

If this happens with the remote (there is a motor turning the knob), try turning it by hand.

Not surprising. The VSX-D409 doesn't have HDMI.

Could be that you wore out the volume knob, or may have turned it too far in either direction. If its the knob itself then depending on your experience working on electronic equipment and the ability to get a replacement knob you can maybe fix it yourself or may have to send it into Radio Shack for them to repair it.
If the knob turns real easy you probably have a worn out knob.

I have a VSX D508 Looks just like the VSX D409. Had the same prob with the volume control when I bought it. I first tried the cleaner. Better than what it was but didn't compleatly solve the problem and before long it was getting worse again.
It does have a rotary encoder instead of the traditional varible restance volume control. I finally broke down and removed it from the board and lightly sanded the contacts with fine sandpaper.
This involves removing the whole face from the main board and chassis. Not that bad, a couple screws and some ribbon jumpers and latches and it's off.
Next carefully pull the volume control straight off the shaft, remove the nut under it and lay it face down on a soft surface. Remove the screws that hold the circuit board to the face and slowley seperate the too, you'll have to release some latches also to sepperate them.
If you replace the volume control with a new one or clean the old one you have to go this far because it's soldered to the front side of the board. Yes, it has to be de-soldered from the board.
This control was not designed to be dissassembled but I was able to carefully open it and remove the shaft to totaly expose the contacts for a complete even couple of passes with the sandpaper.
I did have to use some 5-minute opoxy when I put it back together because I couldnt get the metal tabs to close as tightly as they were before it was opened.
I soldered in the volume control, put it back together and it's worked perfectly ever since. I don't know how much pioneer wants for a new one but I can tell you they wanted $69 plus shipping for a new remote for my receiver. And with this style of volume control you might be at their mercy as far as finding one from another source that fits.

This type of calibartion is known as a logarithmic scale.
The numbers refer to decibels below the maximum output of the amplifier section of the reciever, or decibels of attenuation (making smaller/quieter).

Without going through logarithim theorey, the logarithim (base 10) of 1 is 0. So if 1 is the maximum output of the amp, as you turn the knob down from maximum you are adding more and more attentuation to the output (relative to maximum) and so the loudness of what you hear goes down, even though the number on the scale is going up !

Most peolpe associate decibels with sound levels, but anything can be measured in decibels, so long as there is soemthing to reference it against.

If you can find a replacement part, replace it. it's possible that the sliding carbon has worn out

Hi...
Make sure all the speakers are connected properly at BOTH ends.
If still **** then seek a service tech

if you dont have the owners manual, this should help out alot, it has all 60 pages that has to do with the VSX-D409, you can go to this site to go to the manul it is to the right of the receive under resources http://www.pioneerelectronics.com/PUSA/Support/HomeEntertainment/AV-Receivers/PioneerReceivers/ci.VSX-D409.Support to use the manual it uses adobe, if you dont got that i could put everying on windows notepad an send it to ur email. Hope this works

Check the preamp Coupling Capacitor, which might have lost its value, or might have leaky dielectric.