I am looking for advice on a problem with a SMC-3M3. I have just installed it and the treble control (of the stacked bass/treble) is not working. i.e. It turns ok, but is not making any difference to the sound. The other controls all work ok. As the bass control on the same stacked control is working ok, I think I can assume that my own soldering is ok? I.e. There is not anything special/separate for me to do with the treble. Also, the bass had a John East pre-amp in it previously where the treble worked ok, so I can't think that it could be anything other than the stacked pot and/or the pre-amp circuit board.
Does anyone have any advice on how I might diagnose the issue? e.g. I thinking that I could replace the stacked pot and see if that worked. If that didn't work, could I assume that the problem is with the board?
Thanks in advance for you help in this respect.
Does anyone have any advice on how I might diagnose the issue? e.g. I thinking that I could replace the stacked pot and see if that worked. If that didn't work, could I assume that the problem is with the board?
Thanks in advance for you help in this respect.
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