Mackie Tapco Th15a Thump Active Loudspeaker "reversed polarity" Questions

I need a volume pedal for a SX KN6000 Technics keyboard I bought a Yamaha FC7 foot controller - it works, but backwards. When you push down it goes softer (or quieter) instead of louder. There must be

On a Mackie Thump Th15a loudspeaker, diodes D106 and D107, which diode has reverse polarity? Contact Mackie Customer Service for the best answer. Mackie Tech Support Both diodes have the same polarity

...reversed polarity from the Standard Power AV adaptor you get in the market. The center is NEGATIVE. When you try to use a new power supply that is NOT a CASIO original, you may need to reverse the ...

...polarity will be reversed. I tried that. It still works in reverse. What can I do to get the pedal to work right? You should have a setting on the keyboard which allows you to switch pedal control. ...

...polarity reversed... the electronics didn't "play well" with this scenario. If this model has a powerpack on the cord, that may be the culprit as well. If it is just a straight a/c cord, the ...

When I plug the damper pedal into my Roland ep 77 the damper comes on and stays on no matter if the pedal is pressed or not pressed. Using an M Gear SP2 pedal with dual polarity. Problem is the same ...

...polarity on the adapter plug. It must correspond to the diagram on the keyboard . If it's reversed, just cut and resolder the cable that connects to the keyboard. My 3500 also has a similar problem. ...

I have a bad hum in my digetech live 4 When I plug the vocalist in there is a bad hum you may have a bad cord. try others. all so try reversing the polarity on the back of the amp. DFD

...11.5 volts in nothing happens no power up or display PSRE 403 yamaha If the power supply is NOT the original one, it may be reversed polarity. The supply should be a PA-3C with the center being

my H2 dose not turn on. It think the problem is in the Power supply but I need the schematics check the polarity is not reversed