I can't seem to find where the video signals leave the digital board of my Mac SE/30 and travel to the analog board that is connected to the monitor.

I even searched for pinouts online but I guess my searching skills are failing me.

As far as cables are concerned, I can identify the power cables, the SCSI cable, the floppy cable and the audio cable.

My assumption is that it's buried in one of the power cable connections?


1 Answer 1


The video signals are on the 14-pin Mini-Fit Jr. connection that goes between the logic board and the analog board. It's labeled J12 on the logic board. You can see it labeled in this image:

Apple Board (Click to Enlarge)

You can find the schematics at museum.dyne.org.

  • Great first post!
    – JAL
    Nov 17, 2016 at 18:24

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