Guitar Amp Volume Fades In And Out: Fender Pro 185
I have a Fender Pro 185. It is a solid state amp. The volume seems to fade in and out on it as I play. Sometimes it takes it up to 20 seconds to come back and when it does come back it is usually louder than it originally was. I have discovered that when it goes out for a while, if I press the power switch almost to the point where it cuts off but not quite, there will be a pop sound, and the volume will immediately be back to normal. Any ideas whats wrong with it? I have a gig in a few weeks and need to fix this soon. Thanks
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As commented, the best answer is to take it to an amp tech and have it worked on. The volume fading can come from a few different areas, and will require some troubleshooting to determine the fault.
In one case I had an amp that was acting similar to what you describe, and the problem (weirdly) turned out to be a buildup of corrosion across the input jack of the unit's send/return. Electronic spray cleaner fixed it.
That being said, if you are comfortable with basic electronics and opening up your amp, a first step would be to check for loose/broken solder connections, use electronic cleaner on all of your pots and connectors, and tighten all screws and nuts.
If the problem continues after that, then it is probably a failing component requiring professional repair.
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