[sdiy] Micromoog Service Manual

bootsy at LABYRINTH.NET.AU bootsy at LABYRINTH.NET.AU
Thu Oct 25 02:57:41 CEST 2001


Hi Steve & Larry - thanks for the replies & offers...

there was another site i found which lists the micromoog/multimoog 
service manual: http://www.synthservices.com/new_man.html
but it just links to another empty site :(
http://www.geocities.com/SiliconValley/Node/6241/index.html

Anyways... what i need (i think...) is the section of the schematic 
which covers from where the voltage comes in from the keyboard 
resistor divider to when it enters the osc. I will explain the 
problem:

The micromoog plays fine from external CV, the voltages coming 
directly to and from the keyboard divider are steady... But when you 
use the keyboard to play the osc (in the normal way) the cv going 
into the osc wobbles randomly all over the place by +/- half a volt 
or so... i guessing the problem is somewhere in the area after the 
keyboard voltage enters the board?

The board looks in pretty bad shape - looks like it experienced some 
serious HEAT in a former life - cracked pain on the (polyester ?) 
stripy colored caps and the tracks are lifting off and crackling up 
all over :(

I believe that the sonic-6, multi & micro moogs all had similar 
resistor divider keyboard assembly... is this different to the other 
moogs?

Thanks everyone for you time :)
Haima



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