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christian hanlon
Posted on Wednesday, February 11, 2004 - 10:58 am:   

I have a MM RD 115, Chassis no: 2275-65

I don't have the RCA pedal for this amp (looking for one right now!) and have noted that the vibrato on the amp doesn't work. When I crank up the volume and short out an RCA to the vibrato pedal input in the back of the amp, I can actually hear the hiss going through the vibrato. However, any instrument going into the channel doesn't get vibrato at all. I have read that there is a trim pot that might need to be turned up in the chassis - where is that located?

Thanks for reading this!

christian
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michael Kaus
Posted on Thursday, February 19, 2004 - 07:03 am:   

Not sure on the RD's, but if it's in the same area as the HD's, it's on the preamp board, on the end by the bias pot.

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