Logitech R-20 + Windows 7 = Subwoofer not working

Hi names Rui i like to help you by giving you step by step instruction in propely hocking up your logitech speakers:

Instructions

1. Connect the black plug of the rear right speaker into the black plug on the subwoofer.

2. Connect the yellow plug on the rear left speaker into the yellow input on the subwoofer.

3. Connect the red plug of the front center speaker into the red input on the subwoofer.

4. Connect the white plug of the front left speaker into the white input on the subwoofer.

5. Connect the d-sub connector plug from the front right speaker into the d-plug connector on the subwoofer.

6. Connect the green, black and orange input to the matching plugs on your computer. If you have a four-channel sound card, connect the green plug from the input audio cable to the front plug of the card and the black plug to the rear plug. Do not connect the orange input. If you are using a two-channel sound card, connect the green plug from the input audio cable to the "Line Out" jack on the sound card. Do not connect the green and orange plug.

7. Plug the subwoofer power chord into the electrical power outlet.

8. Place your subwoofer on ground around your computer desk. Position the front center speaker on top of your computer monitor.

9. Place the left and right front speakers on the sides of the monitor. Position the left and right rear speakers behind you, making sure they are pointing toward the front left and right speakers.

10. needs to support 5.1 surround. Normally, more than three sockets for sound indicates that it does. Then you need to use the software that comes with the sound hardware to configure it for 5.1 - Default will be 2.1 or just 2.
Check the control panel out. This is a lot easier under Windows 7.- Here you can access what you need via the speaker icon on the system tray (right click)
There is NO problem with your OS or hardware, this is pretty standard...

hope this will help you solve your problem.

Try pulling the power from the unit for a few minutes, the reconnect. Make sure you've got the surround settings correct. If that doesn't do it, you've likely popped the amp or the amp's power supply in the sub box.

open your subwoofer because main system is inside in your subwoofer than clean it with a air blower ..
this happens when dust is inside the system....

You don't identify the subwoofer so we have to guess.

Since it only supports a powered subwoofer I would guess you just need a standard single RCA cable available anywhere hifi cables are sold.

This undoubtably is a driver problem. You could try running and installing in Administrator, mode and compatability Mode for XP SP2. Either that or ask Logitech whats their fix.

After time they may collect dust. clean them a bit.Do u have an extended warranty. may your should use it . if that does work maybe time for an upgrade..

Hi all, I also purchased a logitech x-540 a few days ago and also have the center speaker outputting sound when i test or play the subwoofer. I didn't think this is normal and am now confused. Maybe its a problem with the audio drivers? MB is a ASUS P6T Deluxe V2 with Soundmax drivers. Hopefully someone can help to diagnose/ find a soluytion.

did you fix it? I have exactly the same problem, I'd appreciate any help please

There must be a control on subwoofer, like a volume control. Turn it and check it. Also check the connections.

in my view, it is due to any of the following
1. its fuse burnout or wire breaked, check fuse and cordwire
2. its subwoofer coil is damaged to loud volume, replace it
3. its amplifier IC is damaged, replace IC