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Vintage Synth Repair

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Re: memorymoog plus - freq mod issue

2010-09-23 by duncan

>>But upon further investigation, I determined that the LFO Freq Mod of OSCs 1, 2 and 3 was NOT working.<<

if you have the schemos, the next thing to do is find a local tech who can follow them better than you... :-)
it sounds as though there's a failure of the IC-based switchgear associated with the mod routing.
the switches under the LFO rate knob will create a path from the LFO onto the three oscillators using analog switch ICs...

um....

do the LEDs still come on? I will dig out the schemos for my LAMM this weekend & see if I can get you a bit closer.

duncan.

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