Vintage Synth Repair

The good news is: Everything can be repaired. It's just the question of
identifying the actual problem.

Let's start from the bottom:

> and the pitchbend output does not work.

That's a broken connection or the pot is broken. No active components in
sight here.

> the White and Pink noise output does not work (and the noise waveform in vco1
> does not work either)

This probably means the noise generator itself is dead (the noise waveform
in vco1 comes from it as well).

> the linear VCA also does not work,

Hmmmmm....

> the S/H does not work (the output does not output any stepped voltages, so i
> cannot know if its the sampling or the clocking section that does not work),

You know, this is getting interesting.

Does the headphone amp work? If it doesn't the problem is very easy to fix.

-- 
Malte Rogacki gacki@...
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"Don't forget to TURN ON THE SYNTHESIZER. Often this is the reason why you
 get no sound out of it." (ARP 2600 Owner's Manual)
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