MIDIJACK II wiring harness connections to Synthe-Bass:
H1 (silkscreen marking next to #1
black wire)
#1 O------------------black
wire/ground------------------------to terminal connecting to sleeve of
audio output jack
#2 O------------------red
wire/power input---------to jumper wire behind KEIO IC TS201012 as seen
in photo below
#3 O------------------blue
wire/CV input (for bypass)----------------to PCB trace formerly connected
to LM741 pin 3
#4 O------------------white
wire/CV output (switched)-------------to pin 3 of LM741 no longer connected
to PCB trace
#5 O------------------yellow
wire/V-Trigger gate input (for bypass)-----------------not used for this
installation
#6 O------------------green
wire/V-Trigger wire-------to new 51K resistor--------to base pin 3 of Q1
#7 O------------------brown
wire/S-Trigger output (unswitched)--------------not used for this installation
#8 O------------------violet
wire/auxiliary MIDI function input---------------not used for this installation
#9 O------------------orange
wire/MIDI input--------------------------------DIN jack pin 4
(#9 and #10 wires are a twisted pair)
#10 O------------------gray wire/MIDI
input------------------------------------DIN jack pin 5
Mount MIDIJACK II circuit board. Mount DIN jack and solder black wire to terminal connecting to sleeve of
audio output jack as seen here:
