Vintage Simmons Drums (UK) Users Group

for some reason in one of my SDSV tom modules the noise generator does
not work anymore. The noise knob as well as the noise-tone balance do
not affect the sound at all, only the sound of silence appears when I
tunr the noise balance to 100% noise. Any idea how I can solve this
problem? I guess I can use a soldering iron but I am not very
experienced in electronics. I would be glad for any suggestions.
Thanks