[sdiy] asm2 vco problems

Dan Snazelle subjectivity at hotmail.com
Fri Nov 7 17:14:05 CET 2008

anyone around here built the asm2? having some real trouble with the vco (vco 1)

the schematics are here:


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
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(or for techno) http://www.myspace.com/snazelle 

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