What is this connector?

[lyonadmiral]

Does anyone know what this connector is that I've circled on the service diagram?

 

[eswan]

Composite/SVideo In/Out?

Power Mac 7500 7600 – AV Module – Apple Rescue of Denver

applerescueofdenver.com

 

[eswan]

Nope, AV io connector is between cpu and pci. That slot is apparently DAV- digital audio video interface. No idea what or if anything used it.

Illustrated 7500 Teardown

Sounds similar to the VESA feature connector on some x86 video cards.

 

[NeXT]

If you had an A/V mac and tried to capture using the Apple Video Player, it sucks. The resolutions aren't great when capturing, it can't do 30fps and it simply locks you out if you are using higher color depths. Back in the 68K A/V mac era there was a similar inline header on one NuBus slot and the idea was special NuBus cards could tap straight into the A/V in and out on the logic board and you could enhance the functionality by adding hardware compression/decompression options. I have one of those boards installed in my Quadra 660AV.
Apple brought this to the PCI macs in the form of the DAV header. There is exactly one device I know that used it and that was the Avid Cinema Kit PCI card. It's poorly documented and out of the box shipped intending to be used a variant of the Apple TV/Video option which used the larger DAV header. I don't doubt however it would work in something like a 7600 or 8600 with a longer DAV cable.


I've mumbled about it more than once. https://forum.vcfed.org/index.php?threads/power-macintosh-8600-dav-connector.1244971/