[sdiy] Micromoog Service Manual

[Arthur Harrison]

You have identified what is perhaps the most common cause of failure in
consumer audio equipment. If the equipment manufacturers would take the care
to build assemblies with the same structural integrity employed by the
component
manufacturers, then equipment would last at least 10 times longer with
average use!

-Art

----- Original Message -----
From: <bootsy at LABYRINTH.NET.AU>
To: "synth-diy" <synth-diy at dropmix.xs4all.nl>
Sent: Friday, October 26, 2001 10:13 PM
Subject: Re: [sdiy] Micromoog Service Manual


> 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
>