Question about Televison & Video
When plugged in to the power source there is a loud static sound
Posted by Anonymous on
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Posted on Jan 02, 2017
What sort of computer do you have? Is it a laptop or desktop? Many
laptops have this problem and it is quite widespread in laptops. The
crackling or humming noise could be a result of interference from the
mains power signal.
If it's a laptop, try running it on battery alone (take out the mains power cord). My laptop has this kind of noise in speakers when running on mains electrical supply, but it goes away like magic when I run it on battery.
A more long-term solution is to buy a 'Ground Loop Isolator' and insert it between your computer and the speakers/earphones. They are quite cheap and you could get it for under £10. It removes all static noise and you'll hear crystal clear sound.
Posted on Jan 01, 2009
SOURCE: power supply issues
hi there, i recommend replacing the entire board. once you have a short like this, the micro board itself will become useless. the thin micro circuitry has become separated within the layers, preventing a closed current transfer. its best to order a new canvas so to speak.
Posted on Mar 11, 2009
What sources make it happen or which do not? All buzzing = something in the amplifier end. is it from all speakers or just one?
One external source= RCA cables not grounded. Reconnect them tightly with a twisting motion to wipe off oxidation.
Posted on Apr 10, 2009
I suspect the power supply for the effects processor has failed. The effects unit will "go crazy" when power supply is too low voltage.
If the amp has loud noise, then the power amp portion is PROBABLY OK.
I had a similar problem in a Behringer amp caused by a bad electrolytic filter cap.
Posted on Sep 03, 2009
SOURCE: how do I fix bad static?
Yes,loud static usually comes from bad isolation of sound signal path so it's probably a frayed cable or a loose jack. Or if you're unlucky some parts inside have failed.
Posted on Oct 26, 2009
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