Vintage Simmons Drums (UK) Users Group

Hi everybody, do you have any suggestion about this problem:

"On my sds9 I can't get the rimshot sound. I made different tests: I
know for shure that the proms are good, because if I put the rimshot
prom in the socket of the snare, I can hear their sound.
I know also that the channel triggers correctly, because when I put
the unit in manual tap mode and press the button of the rimshot
channel, I can see the trigger light on, and I can hear I very low
beep sound from the output... so I have to guess it's the internal
circuit that hold proms that is dead ?....I'm not so expert with this
stuff..."

I already posted this message some days ago and I'm sorry if this 
cause confusion, but I really appreciate your help.
Thanks
Giame