SOURCE: cobra 2000
Unplug it,and remove the cover. Hook it back up and turn it on. Take a pencil with the eraser end and gently press around where the volume is soldered in the circuit.Wiggle the volume knob,listen if volume change. Sounds like a cold solder joint.Re- solder the joints to volume,or could be a dirty control, if still no volume, turn off and spray inside of volume tuner with contact cleaner. hope this helps..
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
make sure you have an earth
******** before touching any parts inside your computer
hope this helps
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