J23=fader LEFT when automation is installed 1=ground
2=wiper
3 Top of fader
J25=Automation connector Left or fader connector when no automation is installed
1=Ground
2= VCA out
3=VCA in 4=Reference voltage
5=+5 volt (dependent upon VCA type)
J26=Pre Mute select LEFT
1/2=Mute active on aux pre fader setting
3/4=Mute not active on aux Pre fader setting
J27=fader RIGHT when automation is installed 1=ground
2=wiper
3 Top of fader
J28=Automation connector Left or fader connector when no automation is installed
1=Ground
2= VCA out
3=VCA in
4=Reference voltage
5=+5 volt (dependent upon VCA type)
J29=Pre Mute select RIGHT
1/2=Mute active on aux pre fader setting
3/4=Mute not active on aux Pre fader setting