Roland KC550 Amp Keyboard "problems" Questions

I've a problem with the Beringer XENYX1204FX I Have a problem with this Mixer. Sometimes when i'm using it, it starts to turn on and off too fast... I'm not shire if it is a problem with the ...

buttons are not working My Roland GW-8 has got some problems. Some buttons not working properly. for ex: Style,Select, Enter,Dual,Split etc... When I choose piano, its selecting Sax section. the tone ...

...time. I previously had a PSR-350 I think or 360, but what ever the case, it use to give the same problems..Mine was not the only one with this problem, i have seen problems with other brands of ...

loosing volumen and a high noise expecting when trying to play concern like a gorund problem or some thig like that the amp is 4 yrs old Often a broken input jack is the problem causing this. Wiggle ...

feedback overpowers amp output...I have fixed my guitars, fixed and replaced chords, tried other amps, tried other guitars, and nothing seems to fix the problem...If there a way to switch polarity on ...

...channel/ effect channel. I have had this problem on two different units....any solutions? Similar problems? MAYBE CHECK YOUR TOGGLE SWITCH, YOU MAY HAVE TO REPLACE IT. Do a factory reset -

hi ihve soundcraft efx12 & the problem is in the effect, it hanges if i use the program selector, all the leds related to lexicon effects lit up.ithink the problem is in the the lexicon card. ...

my P150 model has a problem with power...had it fixed in local repair shop but works only for a while then goes back to the same problem..i person fixed it already gave up an told me to bring to a ...

...is shorted, you will find certain notes interact. You need to find which are OK and which causes problems... Defining the keys as problems in chords does not help as we need key numbers such as C3 ...