Mini Modular

Vol prospective_volition at hotmail.com
Fri Nov 10 01:49:10 CET 2000


Hi there, I was wondering if you kind gentlemen/women would help me with some troubleshooting on my mini modular. I got it going, yay, and it seemed fine apart from a litttle bit of noise. Then I took it in to work to calibrate it with their equipment. The oscillators seemed to be unstable and I couldn't get an accurate reading, then i tried a larger transformer on the power supply and this seemed to fix that problem and all was well. I was getting +14.90/-15.10 approx on my rails. I sucessfully calibrated it........... then I don't know what happened but the power diode starts flickering so I turn it off. Then when I turn it back on the lights come on then fade out, but the power LED is stable as are the others. Now when I turn it on the midi in LED has about 1.4 volts across it and glows faintly with no midi instrument connected. I reverted back to the first power supply. It has +/-15v on the output but when I switch the synth on the voltage on the rails drops to about -10/+13v. I can't see anything obviously burnt out. The midi/cv LED does it's double flash thing when it's turned on, so I don't think the OS chip is stuffed. Any ideas or help would be greatly appreciated.

Thanks

Vol
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