Typically the opto-resistor on the 366 is the cause of this scaling problem
when tuning. There is a file on the yahoo group site that has the following
email copied into it:
"I wanted to let you know that I've finally managed to repair my Precious
(Polysix). It was indeed the opto resistor, the PC-1, that was faulty. It
was suggested to me that I replace the old mysterious PC-1 component with a
VTL5C3 and change R93 from 4k7 to 1k2 (to get the VTL5C3 working properly)."
This worked for me too.
Jed
On Sun, May 20, 2012 at 11:24 PM, troels j�rgensen <the19thbear@gmail.com>wrote:
> ∗∗
>
>
> Hi. I finally got both of my p6's kind of working. (at least the 367 board
> is ok now).
> I cant seem to get the 6 voices to be completely in pitch over the entire
> keyboard.
> If i tune the different voices to be in tune one octave apart, they arent
> in perfect tune from lowest octave of the keyboard to the highest octave.
> And then if i tune them to be in tune from the lowest to oct to the highest
> oct they arent in tune one octave apart. Is it just the way it is with the
> polysix or am i doing something wrong?
>
> And: i have a LFO problem. Even though lfo delay is set t zero i still get
> about 0.5 sec of delay whenever hitting a key. I cant find a way to
> calibrate it - could there be a cap that needs replacing?
>
> thanks:)
>
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>
>
>
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