20 Most Recent Logitech Z-640 Computer Speakers Questions & Answers

Open the Sound control panel in the computer and verify that the output is set to external speakers. You can verify by playing with the System Alert sounds; this will weed out application problems. There are a few applications that have the sound output selection crossed up on some computer models - selecting the internal speakers will send the sound to the external speaker jack(s) and vice versa. If you have headphones or a different set of speakers, try them just make sure the computer is not the problem.

Yes but it depends on how they plug into the back of the sub as to how hard I will be

Hi Ray,if there is no power going thru than,might probably be your fuse in the subwoofer that's blown.What you have to do is remove the wire mesh from the front using a terminal flat screw driver. You will notice that there are screws around the speakers,remove them inorder to take the speakers out.Once you've done that take out the speakers gently so that you dont disconnect any wires inside.Turn the peakers over and you will see a fuse attached to the speaker.Try replacing the fuse with the asme ratings.Please refer to the image below on what the back of the peaker looks like.All the best and Good Luck.G..

Here is a link to the manual for your surrond sound speakers.http://logitech-viva.navisite.net/web/ftp/pub/pdf/speakers/z640.pdfI hope this helps you

well you &hash39;s why do you think there is a short in the cord did you hear static?
if you are having problems with your sound if your computer came with a motherboard disc the sound drivers could be on it click start control panel administrive tools computer management device manager scroll to sound,video and game controllers you might see a yellow question mark? Right click to reinstall drivers click start control panel sounds and audio,volume,advanced,speakers make sure you have selected the (((appropriate speakers))) also audio you will find 3 drop down lists make sure you have the correct settings there also click start control panel sounds and audio devices you can adjust the volume there also select speaker volume you can change your settings there you can also tick in the box place icon in taskbar if his does not fix the problem

have you tried this control panel sounds and audio,volume,advanced,speakers select the appropriate speakers from the drop down list or navigate to the device manager scroll to system devices + to expand,system speaker right click properties then select use this device (enable) also you might check the speakers plug/outlet is usually at the back of the computer you will have to open up the computer to check the lead attached to the rear of the input plug make sure the connection is good try cleaning your computer of dust using a fine air blower from a compressor making VERY sure that there is no MOISTURE in the air line specifically around the sound card and the CPU central processing unit dust causes static to build up in a computer hope this helps

You may have to call Logitech support or email to find out what the pin out is. that would be my only solution if there is one.

If you suspect your sound card, I'd need to know the model and make of your computer. If you can find out what kind of computer it is, often the manufacturers website provides you with the downloads. What you would need is an audio driver.

you might need to select stereo speakers click start control panel sounds and audio,volume,advanced,speakers make sure you have selected the (((appropriate speakers))) also audio you will find 3 drop down lists make sure you have the correct settings there hope this helps

if your computer came with a motherboard disc the sound drivers could be on it you might have to uninstall then restart your computer then reinstall both the sound drivers and the sound card make sure you have both of these devices backed up to a disc before uninstalling a yellow? question mark means you need to install/update driver to do this right click to install driver also click start control panel administrive tools computer management device manager scroll to sound,video and game controllers you might see a yellow question mark? Right click to reinstall drivers click start control panel sounds and audio,volume,advanced,speakers make sure you have selected the (((appropriate speakers))) also audio you will find 3 drop down lists make sure you have the correct settings there also click start control panel sounds and audio devices you can adjust the volume there also select speaker volume you can change your settings there you can also tick in the box place icon in taskbar if his does not fix the problem

have you tried this control panel sounds and audio,volume,advanced,speakers select the appropriate speakers from the drop down list or navigate to the device manager scroll to system devices + to expand,system speaker right click properties then select use this device (enable) also you might check the speakers plug/outlet is usually at the back of the computer you will have to open up the computer to check the lead attached to the rear of the input plug make sure the connection is good try cleaning your computer of dust using a fine air blower from a compressor making VERY sure that there is no MOISTURE in the air line specifically around the sound card and the CPU central processing unit dust causes static to build up in a computer hope this helps don

The different connectors are for 5.1 surround audio, and are for different speakers with your system.

• The green connector is for your front-right/front-left speakers
• The black connector is for your rear-left and rear-right speakers
• The orange plug is for your center speaker.

Most laptops do not have support for 5-speaker audio, so if you want to test each individually, you will need to plug them in one at a time and test playing sounds through them.
Hope this helps,

If you can get around to the back of your PC they should be colour coded, green to green (speakers) pink to pink (mic) etc,

If they are not colour coded, play something and then get back there and move the port one by one until you hear it playing. You will definitely find the mic port easily as it should have a image of a mic stamped onto the metal by the port, its the speakers that are a bit harder to work out from the images
Let us know how you get on :)

• Verify that all cables are plugged in correctly. Make sure the rear and/or center/sub audio cable is plugged in to the correct port. On most surround sound cards, the rear audio port is black, the front audio port is green, and the center/sub audio port is orange. If you do not have a surround sound card, make sure you obtain the proper adapter (discussed in the next paragraph) or use surround sound emulation if your speaker system offers it. If you are not sure if you have a surround sound card, please check with the manufacturer of your sound card for details.
• Make sure your sound card supports the same amount of channels as your speaker system contains. For 4.1 systems, it should have a front and rear speaker jack on the card. For 5.1 systems, the card should have a front, rear, and center/sub, output. The card should be properly installed and configured. Please contact your sound card manufacturer for details. If you do not have a surround sound capable sound card, you can use the M3D button on the controller unit (if you own a z-560 or z-540) or use the source selector switch (if you own a z-5300 or x-620). If you do not have any of the models above, you can use an adapter to split the signal for the front and rear speakers. This type of adapter is a 3.5mm male to 2-3.5mm female jacks. You can purchase this adapter at your local electronic store. Please refer to your manual if you do not know if your speaker system can emulate surround sound.
• Try connecting the speakers to a portable sound device such as a walkman or portable CD player. Plug the speakers into the headphone jack, but make sure the volume is lowered so the speakers are not over powered. You can do this for both the front, rear, center/sub speakers to verify that they work. If the speaker system works on the walkman, then you are experiencing a configuration issue with your sound card. Please contact your sound card manufacturer.
• Check the system Volume Control located in the System tray. Make sure that the volumes are at a reasonable level and are not checked for Muting.

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