Discussion about the Korg PolySix synthesizer

Hi,

don\ufffdt know the MS-10 but maybe it\ufffds the failure of a dry capacitor which 
is connected between ground and +vcc. Afaik has the MS10 a CV out 
connector at the front panel which must be (in my opinion) directly 
connected to the resistor ladder of the Keyboard circuit. Did you 
measure this connector already while pressing one key twice (in order to 
find out if the CV actually changes)?

Or you should take a look into the Service manual (including circuit 
diagram)

http://www.phasereffect.com/pub/ms10.pdf        (880 kb)



Stef

Pure speculations.

Stef

gil_we wrote:

>I own a vintage (70s) Korg MS-10. This little bastard works great 
>excapt for casual pitch drifts. Sometimes it doesn't play the exact 
>pitch when hitting a key, than hitting it once more will make the 
>accurate pitch sound. This will also happen when using some "gilde", 
>than when gliding to a note sometimes it won't target to the exact 
>pitch...
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>Should I change all electrolytics ? how about ICs ? Which section 
>shuold I look at ? VCA ? VCO ?
>
>Thanks
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>PolySix "Digiest" Page: http://www.acc.umu.se/~amber/Poly6 
>Yahoo! Groups Links
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