[sdiy] Micromoog Service Manual

[bootsy at LABYRINTH.NET.AU]

Hi All...

I have tracked down what was causing the wild fluctuations in pitch 
on my micromoog - bad solder joints due to board stresses...

when i got it on the bench i noticed that when the board was flexed 
the problem went away and returned when a knob was touched or the 
board flexed again...

There seems to be a bit of a problem with the design of the 
micro/multimoog (as far as I can see), in that the pots are not 
secured at the front panel - only by solder on the board.

This works fine for a while, or if the knobs are treated with much 
care... but my micromoog (pawn shop special) has been very poorly 
treated and the pot solder joints were causing the wild fluctuations 
in pitch...

reheating/cleaning up these joints fixed my problem - a more 
permanent solution would be to replace the pots with ones that are 
secured on the front panel in the normal way and connected to the 
board with hookup wire (space permitting)

Might be useful info to someone one day...

Haima