[sdiy] asm2 vco problems

Dave Magnuson KingRavine at comcast.net
Fri Nov 7 17:28:06 CET 2008


Have you checked the FET across the timing cap?   Without a "reset" you'll 
see a constant voltage at the outputs.

Dave Magnuson

----- Original Message ----- 
From: "Dan Snazelle" <subjectivity at hotmail.com>
To: <synth-diy at dropmix.xs4all.nl>
Sent: Friday, November 07, 2008 11:14 AM
Subject: [sdiy] asm2 vco problems


>
>
> anyone around here built the asm2? having some real trouble with the vco 
> (vco 1)
>
> the schematics are here:
>
> http://www.elby-designs.com/asm-2/vco/vco-asm2-about.htm
>
>
> getting voltage on all the rails.
>
> oddly the outputs (square wave specifically) keeps putting out  a 
> voltage...around 4 volts
>
> i resocketed the ic's.
> i resoldered the solder points.
>
> been testing for continuity and so far havent found any dead connections.
>
> i am stumped.
>
> next i am going to try replacing the caps (i hate pulling out caps :(
>
> any ideas? specific voltages i should be getting on specific pins?
> my project is going down in flames ;(
>
> thanks all
> --------------------------------------------
> check out various dan music at:
>
> http://www.myspace.com/lossnyc
>
>
> http://www.soundclick.com/lossnyc.htm
>
>
> http://www.indie911.com/dan-snazelle
> (or for techno) http://www.myspace.com/snazelle
>
>
>
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