Question about Boston Acoustics BA745 Computer Speakers

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Speaker noise When I adjust my volume control knob, there is a VERY loud static noise. I think it might be dust or lint, but when I opened the case to try to clean it, the electronic board is glued in so I can't access the inside of the knob control. Anyone have any suggestions?

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The contacts on the volume control (potentiometer) get oxidized over time on any analog rotary volume control. With the power off, crank the volume control back and forth real fast for a minute or two, this will do the most cleaning of the contacts that you can do without access to the insides. Ultimately you'll probably need to sprary some tuner wash/tuner cleaner or other electronic parts cleaner in the know (with the electricity disconnected) and then work the knob back and forth. Tuner wash bottles are available at electronic specialty stores or radio shack and usually have a long extension tube (like what comes with WD40). You might be surprised where you can reach with the extension tube.

Posted on Sep 01, 2007

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Posted on Jan 02, 2017

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Volume problems on computers often happen for a variety of reasons.

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Usually the problem isn't even an error but just merely an adjustment that needs to be made.

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The speaker plug/outlets is usually at the back of the computer or if its a laptop on the side


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 with no dust as dust causes static electricity


clean your computer of dust using a can of compressed air or 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



If this doesn't solve your problem, try reseating the sound card into your computer.


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sure the connection is good with no dust as dust causes static electricity


clean your computer of dust using a fine air blower from a compressor making VERY sure that there is

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dust causes static to build up in a computer

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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 selected correct speaker settings there

click start control panel sounds and audio devices select advanced there might be a tick in the mute box untick it

if his does not fix the problem

click start control panel sounds and audio devices you can adjust the volume there also select speaker

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further volume control settings you will need to right click on the speaker volume icon system select adjust volume


click start 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 speaker plug/outlets is usually at the back of the computer or if its a laptop on the side

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 with no dust as dust causes static electricity


clean your computer of dust using a fine air blower from a compressor making VERY sure that there is

no MOISTURE in the air line or use a can of compressed air specifically around the sound card and the CPU central processing unit

dust causes static to build up in a computer


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click start 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

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the speaker plug/outlets is usually at the back of the computer or if its a laptop on the side

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 with no dust as dust causes static electricity


clean your computer of dust using a fine air blower from a compressor making VERY sure that there is

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hope this helps


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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
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Read this here -
http://forums.logitech.com/t5/2-1-2-0-Speaker-Systems/Z-2200-Touching-the-remote-volume-knob-results-in-a-very-loud/m-p/369699;jsessionid=4ED1A1BC248CB27152E9281D845FAF4A

Hi, the crackling is mostly a result from dust and debris building up on the contacts of the volume knob over the years.
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and
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m/E

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