Vintage Synth Repair

Also I was wondering. When you say it's not gating the unit, does that mean that pushing a key on the internal makes a sound but it just keeps playing? Gate controls the length of the note, right?


> On Jul 31, 2014, at 0:04, "salsole@... [vintagesynthrepair]" <vintagesynthrepair@yahoogroups.com> wrote:
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> Hi all!
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> I just picked up an SH-101 from a fella who didn't feel like fixing it, and I am stumped (momentarily)...
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> The issue i am having seems isolated to the envelope section of the synth. I can trigger cv and gate from an external source, but the ENV doesn't really do much. it is basically just a long delay. Gate mode works fine. The internal keyboard in the unit doesn't do much. It won't gate the unit at all, though there is a random (like every few minutes) trigger that occurs, and when that happens, the cv, arpeggiator, etc. works just fine. The keyboard is sending the appropriate pulses to trigger the gate, but after that...
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> I switched out TR29 and TR30... no avail. seems unlikely it would be the IR9022, but what else should I look for?
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> I would like to get the gate working, at which point I will look into the ADSR issues... Perhaps they are related?
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> Anyhow, any helpful thoughts would be greatly appreciated...
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> All the best!
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> -Waveformless.
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