Speakers dont work

check you settings . make sure you volums are up for each speaker, and see if you delay speaker settings are messed up , if that dont work switch speakers aroun see if its the speaker , if that dont work set system to defalt

well the reason for it not working is becausethe windows lost the speaker's driver so what you need to do is to re-install the driver of the speaker.

check the cable may be cable from first mall speaker problem

it sounds like the headphones shorted out the usb on your system, you might try some speakers that are not usb and see what you come up with,,,also check and make sur your sound isnt muted on the master control for the volume

Try and twist the jack which is connected to your PC, the solder inside could have snapped. If it has a diferent pwer source for the sound system, then power on, hold the jack and short the ends with your fingertips. If the speakers dont respond then its not getting any power, which could be simple loose connection too. Test both and then decide. If you dont have the correct driver then download from: http://www.new-drivers.com/files/speakers/Logitech/?gclid=CM_a2oOjtpkCFcQtpAod6hp-5Q........sodeep

Plug them into the one that has the green ring around it,

you might have to config them in controll panel then audio settings :)

Hi, It is simple power speaker unit and does not need any software to work.
Please check connections of speakers, hook its line wire in line-out of of PC and make sure PC have correct sound drivers installed. 

try a light, clean coating of solder on the ends of the wire strands after you strip them to make the ends like a solid wire. this will give the wire jacks something to bite into.
without further info I would only guess that the tension is weak on the spring loaded buttons or speaker jacks

your speaker working willbe okay
If it not working check the power uspply voltage

some time its due to dry soldering

• clean the LED leads and resolder it

It may due to LED trouble

• Replace the LED