I just got a really good deal on a Randall rg120 Commander II, but it has a hum, or a buzz. It sounds like the buzz that some fluorescent lights make. It's volume follows the master volume control, and it pulses with the tremolo. The channel volumes don't affect the buzz. Also the eq controls act funny. When they are turned to 0 they turn their portion of the signal off. In other words, if they are all turned fully counter clockwise there is no sound. If I turn the bass control up I get volume, but very bassy. If I turn up the mid I get volume in the midrange. Same with the treble. with all eqs on (above 0) it sounds great, except for the buzz. Is the eq supposed to work like this, or is this maybe related to the buzz?
I don't have a schem. and don't know where to get one.
Anyone have an idea about how to fix the buzz?
Thanks
I don't have a schem. and don't know where to get one.
Anyone have an idea about how to fix the buzz?
Thanks