SOURCE: What causes the static background noise in my keyboard?
Hi,
It sounds as though you have a static electricity problem in your volume pot. Although there are sprays on the market that you can use for all of the electrical switches on your keyboard which removes and suppresses static electricity, one way to make sure this is the problem is to slide your volume slider to maximum, then minimum, up and down about 10 to 20 times, if the scratchy sound begins to diminish, you knwo the problem lies there. As a matter of fact, if you do it long enough, the sound may go away altogether, although without a good spray of electronics cleaner or electrical contact cleaner (which you can find at stores like home depot or online, even eBay), the sound will return.
If this is not the case, and the scratchy static sound does not go away or depreciate, it could be your cords or even static on the pc board inside the unit. If you are confident that you can crack the case on your board without causign damage, then get a screwdriver and open the case (all screws are located on teh bottom of the unit) and give it a good spraying with electrical contact cleaner on all of the contacts and even a once over on all of the circuit boards. Do not wet the circuit boards with too much spray, rather, give them a light misting.
For areas where you plug in, like your 1/4 inputs, your midi ins and outs, and headphone jack, spray the contact cleaner inside the holes. You don't have to worry about spraying too much in these areas. Just do not oversaturate.
Hope this helps, and thanks for using FixYa
SOURCE: Tecknics SA-222-volume increasing/decreasing
Remove the cover and get some contact cleaner to spray into the volume control potentiometer assembly...this shoud fix it
SOURCE: When I turn the knob
It could be a safety protection meaning you could have a shorted speaker check all speakers and wiring, or it could be a defective volume control, try cleaning the volume with a contact cleaner spray you can find at any good electronic store (you normally have to open the radio to reach the POTENTIOMETER/VOLUME) to be able to spray inside it, than alternate (high/low) the control repetively to move/clean the volume's circuitry
Good luck!
SOURCE: I have been experiencing static
There have been problems with Dell's with the
crackling and it's in the PC, not the speakers. You can confirm whether
it's the speaker system or the PC by plugging in a headset. If it's OK
on the headset then it is the speaker system, but if you get the noise
on the headset then it's the PC.
IF it's the PC, several
things to do, (1) update the video drivers to the latest version. If no
new version is available install the version that is available. (2)
check the sound set up and make sure no "enhancements" are selected.
We've seen problems related to enhancements being enabled.
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