There are a few
simple things to check first:
Make sure your computer has a sound card.
You must be logged on as an
administrator to perform these steps.
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Click to open Device Manager.
If you are
prompted for an administrator password or confirmation, type the
password or provide confirmation.
Expand the Sound, video and game
controllers category. If a sound card is listed, you have
one installed. If no sound card is listed, You will need to install
one. See Install or remove a sound
card.
If you think you have a sound card installed but you
don’t see it under the Sound, video and game
controllers category, expand the Other
devices category and check any devices listed there.
If there is a yellow question mark next to the name of
the sound card, there might be a problem. Right-click the name of
the sound card, and then click Properties.
Click the General tab, and then
look in the Device status box to identify
problems with the sound card.
Make sure your speakers are plugged into a working
power source and turned on.
Make sure your speakers are correctly connected to the
computer.
On your speakers, find the cable that plugs into your
computer. Make sure that the speaker cable is plugged into the
speakers and the correct jack on the computer. For example, if the
cable is a 1/8 inch cable, there should be a round jack for it on
the back of the computer. If it is a universal serial bus (USB) cable, it
will plug into any USB port on your computer.
Make sure that the speaker volume is not muted or
turned down too low.
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Click to open Volume.
Under Main Volume, move the
slider up or down to raise or lower the volume.
Some mobile PCs have an external volume control on the
outside of the case. If you're using a mobile PC, check the
external volume control.
Make sure your headphones are not plugged into the line
out (headphone) jack of your sound card or computer (unless you
want to be listening with headphones rather than speakers). When
you plug in headphones, most computers automatically cut the sound
to the speakers.
If these steps don’t solve the problem, check the
information that came with your computer and speakers or go to the
manufacturer's website.
