Discussion about the Korg PolySix synthesizer

Hi all

I can`t seem to send this email as a new topic so am trying
to see if I can reply to yours.
Thanks

Great group.

I`m well into a resto of my Polysix.

I`ve fitted a KiwiSix board and psu.

I have replaced the paired transitor

with a 2SC1583  45G.

I`ve replaced the opto coupler with a VTL5C9

and I`ve replaced the three ICs 17.18 and 19.

When measuring IC18 pin7 to TP5 I`m still

getting -13v.

Any suggestion on what to change next would

be much appreciated.

Many Thanks

Dave