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I have a Crate g120 cxl guitar amp. it is switching between channels on it's own. (no footswitch)

Tore it down for visual inspection only. I have limited skills in this area. but it can't be rocket science if ya ask the right guy... right?

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Hello Jamie.
Your right, it is not rocket science, this is way bigger and funnier!
Now, that you took apart the chasis fron the cabinet, you may try testing if the channel switching occurs when you hit the Printed Circuit board with some tool like the handle of a screwdriver. you can try with light hits and different places of the PCB while watching what happens in the front panel light. also you can try bending the PCB with your hand to see what happens, if the switching occurs, maybe you have a cracked solder on the pedal jack or in any component related to the switching circuit, in this case, you will have to pull out the pcb, and re-solder those points that can be cracked. Using a magnifiying glass is very helpful in looking for those cracked solders.
Good luck and best wishes.

Posted on Nov 26, 2014

  • jamie
    jamie Dec 10, 2014

    nope. both boards are in fine shape. not sure what the answer is? i found a used footswitch, now the thing works as it should... and iv'e heard the same from others that own crate's. gremlin in the circuitry for sure. a guy could get rich figuiring this one out.....seems many amps are getting tossed to the wayside from this cancer....

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