SE video signal from motherboard to CRT

[Under Dog]

I'm curious. I've been looking at the SE's motherboard and I see connectors for the SCSI drive, floppy drives, the speaker, and the power connector... but I don't see how video gets off the motherboard to the CRT. Does this happen through one of the wires of the power connector? If so, does anyone have a pin out schematic for that connector?

 

[markyb86]

Someone will have a better explanation than I, but video comes from the analog board, which looking from the back is the board on the right hand side.

 

[tomlee59]

See the schematic in the compact mac repair guide. It's all there.

 

[Blinkenlightz]

Does this happen through one of the wires of the power connector?

Exactly - that wiring harness is for both power to the logic board, and video from the logic board to the analog board.

 

[James1095]

It's the same arrangement as all of the compact Macs used, at least up until the SE/30 which is the newest one I've poked around in. With the early machines up to the Plus, the power supply and monitor were both integrated into the same PCB.