22
soldered to the main board, and the male section is soldered to the sub board. Double check this
before soldering
–
a mistake here can lead to pain later. Without going into detail, the idea is to
set the sub board on the headers, and immobilize it (cable ties for the 4027-1s, and 12mm spacers
with screws for the VCF cores). Once you have them positioned and held in place, solder the
headers
–
both sides.
Don’t forget that there are two VCF cores that need pin headers soldered
in.
5.
Install the reverb jacks. The red one goes in th
e location marked “to out”.
6.
Install the trimmers.
Type
VCO1
VCO2
VCO3
VCF
VCA
P / RM /
EF
S&H
/
Clock /
SW
LED
Total
250R
1
1
10K
2
1
2
1
6
25K
1
1
1
3
50K
2
2
100K
2
3
1
2
2
2
12
250K
1
1
Table 13 - Trimmers on main board
7.
Install the 100k audio rotary potentiometer in the Preamp section.
8.
Install the sliders. Working in small groups or quadrants of the board, place the sliders and then
turn the board up 90 degrees to access the back side. While holding each slider down to the
board, and using fine tipped plyers, bend one pin at each end of the slider outward. This works
best if the pins are diagonally opposed. Lower the board down and check that each slider is flush
to the main board, it’s tang is upright, and it won’t wiggle or move when touched. Adjust the
bending of the pins until all sliders are in place and immobilized. Turn the board over and solder
the sliders.
Type
VCO1
VCO2
VCO3
VCF
EG
VCA
P
/
RM /
EF
Mixer
/ Rev
Noise
Voltage
S&H /
Clock
/ SW
Amp
Total
100ka 3
3
3
5
2
2
1
2
21
100kb 2
4
3
5
1
3
3
3
1
3
2
30
1ma
5
1
6
Table 14 - Sliders
9.
Mount the speakers, using 12mm spacers on the front of the PCB, and fasten with nuts in the
back. Tighten these nuts well as they will take some vibration.
10.
Wire up the speakers and headphone jack as shown: