Discussion about the Korg PolySix synthesizer

Hi,

First of all check that you have -5vc at IC13 pin 7 with the MG speed pot
fully counter clockwise. Fully clockwise you should have +5v at the same
point. Any deviation means you should be looking at the mux bus or, dare I
say it, the pot itself!  Buzz back and let us know...

Cheers,
Andy


On 23/01/2010 21:38, "r_j_d_2.phila" <r_j_d_2.phila@yahoo.com> wrote:

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> hey folks, first of all thanks to all of you who helped me with my SRAM chip
> issue. i got a 5514, and the current draw is proper, it now holds the memory,
> no battery draining issues.
> 
> so i took this on the road, and the MG (LFO) section starting malfunctioning.
> issues:
> 
> -the RATE pot doesnt throw from roughly 0hz-10hz. it now goes from 0 to about
> 3 or 4hz midway and then back to 0hz at the end of the throw.
> 
> -the 3-way destination switch only works at VCF
> 
> -these malfunctions affect the presets. so any of the patches i had written
> that had VCO modulated by the MG are now rendered moot.
> 
> any ideas? i have had CMOS chips fail in other Korg instruments of this era;
> possibility? thanks alot for the help-rj
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