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Vintage Synth Repair

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Re: memorymoog plus - freq mod issue

2010-10-05 by duncan

>>thinking about it, & about 4016s generally, it's likely that this is one IC we're talking about. each has four switches internally, so one would be enough for three oscillators-worth of mod switching.<<

found the schemo at memorymoog.com. U13 is your culprit, I reckon, & if I'm right, you'll have lost pwm on osc 1 aswell.

schemo here:
http://www.memorymoog.com/docs/

you want sheet 2 of the schematics pdf.

hth-
duncan.

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