Folks, I just purchased an SDS-1000 and pads. The unit was supposedly working fine when shipped, but out of the box I am having trouble with the kick and snare trigger inputs. I was hoping someone here might have an idea. Problem: The snare trigger input works only when I wail on the pad. The kick trigger does not respond at all and does not send a midi event. The three tom inputs work flawlessly with all combinations of pads and cables, from light taps to heavy hitting. The above symptoms on K & S happen with a known good cable and pad, on all programs. So far: - all the voices work, since I can play them using an external MIDI controller. - jacks and front panel sensitivity knobs are solid and clean. Pots have been flushed with Cailube MCL and measure correctly with a meter. - all socketed ICs have been re-seated - peizo trigger signal has been traced all the way to quad op-amp inputs for the kick and snare peak detector circuits using an oscilloscope. Something seems to be wrong with the trigger circuits or whatever ADC sends the triggers to the 8051. I don't have a schematic, and so am unable to take it any further. Does anyone have any ideas, and barring that, can anyone provide an SDS-1000 schematic? Thanks, MikeS **** http://www.boycrusher.com http://www.hilotrons.com [Non-text portions of this message have been removed]
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SDS-1000 problems
2006-05-16 by Mike Schultz