Question edited for clarity.
Question moved to model category.
This is for the 508
To factory reset your Pioneer VSX-D508 audio receiver, you will need to follow these steps:
Turn off the receiver.
Press and hold the "Tone" and "Speaker A" buttons on the front panel of the receiver.
While holding these buttons, turn the power back on.
When the display shows "Initialize," release the buttons.
The receiver will now begin the factory reset process. When it is finished, the display will show "Completed."
Turn the receiver off and then back on again to complete the reset.
Keep in mind that this process will reset all of the settings on your receiver to their default values. You will need to reconfigure any settings that you have changed since you purchased the receiver.
That type of subwoofer is not used with this receiver. This receiver actually outputs no power for a subwoofer, therefore only needs a plain ol' rca signal wire. This is due to the fact that you need a powered sub... one that you plug in to the wall and it has its own built in amp. you simply run an rca from yyour 505s to that sub.
The support section of the Pioneer website would seem like a good place to begin and failing that I am sure you will find a specialist forum.
What you are proposing to do I think, is to connect two speakers to each of the two remaining working outputs.
Connecting two speakers in parallel will tend to make the amplifier think it is one speaker of a reduced impedance into which it will attempt to deliver more power for a given volume setting. If you like your music loud you could soon overload the output stages.
Connect two speakers if you like but if you don't want to stress your amp you should set the volume control to half of your usual setting, when you could discover your disatisfaction with the arrangement or if the amp is a well-designed tough unit you might just get away with it.
Alternatively, you could take it to the repair shop and get it fixed.
Just disconnect the cables, use a fresh set and validate the connections from the receiver to the speakers... This happens when it's cross connected or you have the speakers connected to the Sub connection. Just validate the connections from the user / connection manual that you should have received with the set
Sounds like the amp has an internal fault,most likely in the power amp/driver stage.If you have a manual and know how to repair amplifiers you could do it,otherwise it is a job for a technician.
www.pioneerusa.com then support. I could not find your "Exact" model, and it could depend on where it was purchased. Look at units closely labeled to yours and chances are it will be the same with a different #. Hope this helps
Still need to solucção pioneer VSX-605s and-505s not VSX. I want to thank the provision of his plan. I am more in search of the manual services of receiver VSX-605s ....
Check the balance control. Apart from that the unit will have to be checked internally to ascertain where the signal is breaking down. This will require some skill and some equipment. My guess is it will be a dry solder joint or a dried out capacitor. If a capacitor looks 'leaky' or swollen, it is a good bet it is outside its tolerance and should be replaced. Sorry couldn't be any better help. Good luck.