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Crown D-150 Amp

My question is: The on/off switch is very hard to turn!!!Almost need pliers to turn it, Well, My buddy used the pliers I think!!, Well, now only 1 channel or 1 speaker is playing, the other speaker is very faint.!! Does the on/off switch have anything to do with now only the one channel working or speaker working?? They have both been working fine. I know it's not the pre-amp and if I change the inputs on the back of the amp than the other speaker works and the other is faint. If so, how to get the knob off the on/off switch?? I took the little allen set screw out and it still doesn't come off. I was going to look and see if I could line up the set screw and maybe this would make the switch work easier and MAYBE!!! both channels would work??? What do ya'all think??? Jay

Posted by Johm Bergseth on


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Sounds like something was spilled into the amp and it got into the controls, switch and switch knob. As for the knob, lean the amp forward about 45 degrees and dribble hot water into the space behind the knob slowly. Try to keep the water from going inside the amp. Eventually, the knob should come off with some pulling & twisting. Once you get it off, replace both pots and the switch. If water gets into the amp just dry it up with paper towels, etc. and let it continue to dry while getting the new parts. HTH, Emory

Posted on Oct 05, 2007


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