Archive of the former Yahoo!Groups mailing list: Discussion about the Korg PolySix synthesizer

previous by date index next by date
previous in topic topic list  

Subject: Re: VCA Calibration looking bleak

From: "sdlarch1" <sdlarch@gmail.com>
Date: 2007-10-10

I found the issue. I reseated the IC that was replaced during the
battery procedure. (put it in a socket instead of directly on the
board)


--- In PolySix@yahoogroups.com, "sdlarch1" <sdlarch@...> wrote:
>
>
> According to the calibration manual, the waveform at CN03-5 should
look
> like this:
>
> [Click for a larger image. Opens in a new window]
> <http://01eea9c.netsolhost.com/poly6/cal_snipet_large.jpg>
>
> Mine looks like this:
>
> [Click for a larger image. Opens in a new window]
> <http://01eea9c.netsolhost.com/poly6/cn03-5_read_large.jpg>
>
> The controls are set like this:
>
> [Click for a larger image. Opens in a new window]
> <http://01eea9c.netsolhost.com/poly6/vca_adjust_presets_large.jpg>
>
> Does anyone see something blatantly wrong? Any ideas? I've
performed the
> battery swap. I went throught the cal procedure after the battery
> operation and this waveform looked fine. The only other mod I've
done is
> that PC1 was replaced with a VTL5C3 and R93 was changed to a 1k2
ohm.
> -Sam
>
>
>
> [Non-text portions of this message have been removed]
>