Discussion about the Korg PolySix synthesizer

hello,
I just midified (verry simple: only midi in / note on/off) my polysix.
now, I'd like to tune each voice and adjust the filter parameters.

- when I do an apreggio I hear 5 even/slightly detuned sounds and one  
with an accent..

here is a text version of the service manual.
could you comment it / tell me you experiences ..

benjamin wild


4.7. Pitch check and adjustment:
--------------------------------
       Set OCTAVE to 4'; leave others at normal.

4.7.1 Change circuit board  slide switch (SW1) to opposite position  
(away from
       VR1).

4.7.2 Play C6 and adjust VR11 to obtain 0 cent.

4.7.3 Repeat step 4.7.2 for units No. 0 .. No. 5.

4.7.4 Play C2  and adjust  KLM-396 VR1  (= KLM-366 VR15)  to obtain 0  
cent. Do
       this for one unit.

4.7.5 Set OCTAVE to 16', play C2 and adjust VR10 to obtain 0 cent.

4.7.6 Repeat step 4.7.5 for each unit. (VR3 is used to adjust for  
deviation of
       all units).

4.7.7 Play C1, C2, C3, C4,  C5, and C6, and confirm that each unit's  
deviation
       is within specifications. (Refer to Poly-6 deviation standards).


       10 |       \____
          |             
\____                                             __
        5 |                 \____                                    
____/
          |                      \_________________________________/
          |
        0  
+----------------------------------------------------------------
                  C0      C1      C2      C3      C4      C5       
C6      C7

                           |<----------------- 4' ---------------->|
                   |<----------------- 8' ---------------->|
           |<---------------- 16'----------------->|

                     PS-6 VCO octave deviation standards
                    at the final inspection at our factory


4.7.8 Check  to confirm  that  deviation  between  adjacent octaves   
is within
       specifications. (For unit 0 only).
       (Refer to VCO adjacent octave deviation standards).


      +10 |
          |       ___                          |
          |          \___                      |
          |              \___________________________________
          |                                                  \______
        0 | 
________________________________________________________________
          |                                                   ______
          |               ___________________________________/
          |           ___/                     |
          |       ___/                         |
      -10 |
                  C0      C1      C2      C3      C4      C5       
C6      C7

                           |<----------------- 4' ---------------->|
                   |<----------------- 8' ---------------->|
           |<---------------- 16'----------------->|

                     PS-6 VCO adjacent octave deviation standards
                        at the final inspection at our factory


4.7.9 Confirm   that difference   between   4' D#4  and E4 is within   
2 cents.
       (Switch between POLY and UNISON and check unit 0 only).

4.7.10 Switch SW1 to  the front while playing  C6 (stretch tuning)  
and confirm
       +8..+12 cent.

4.7.11 Confirm difference of  no more than 2 cents between 4' G5 and  
G#5. Unit
       0 only is OK.

4.7.12 Confirm that KLM-366's  VR1 is approximately in the center  
position and
       not turned in the clockwise or counterclockwise directions.