![]() I am! I didn't talk about SENSE0/1/2 yet. It seems then likely that the brown wire is the CSYNC signal! But aren't you missing some pins from the DA-15 picture? Therefore, there are only two wires to hook up for the Sync signal ( CSYNC and CSYNC.GND), instead of the four for VGA.( HSYNC/VSYNC and their matching grounds) The DA-15 pinout above has pins for VGA-style HSYNC/VSYNC, but those are meant for those not-at-all common cases where you'd hook up a VGA screen to your Mac with an adapter. The last piece of the puzzle is that Mac screens don't use Horizontal/Vertical Sync like VGA, instead preferring to use Composite Sync. It's a bit weird that Green is represented by a white wire, I guess they didn't have green ? It's easy to guess that the pairs of red/blue/white match the color signals ( RED/RED.GND, BLU/BLU.GND, etc.). The chassis (global) ground isn't even on the connector, making it rather obvious.After that, there is only one brown wire and two black wires left.The red/blue/white wires are each paired with a matching ground(black) wire.Looking at this pinout and the way the cables are laid out/colored in the internal video connector, you can theorize a mapping. Since this is Apple, Macintosh screens don't use classic VGA but DA-15 connectors with a custom pinout: Looking at the Color Monitor Connections article basically gave me all the info I needed. I used a mirror from 2002 to shorten a bit the amount of articles I had to search/read through, but you can certainly pull all the info you need from the official site. I was surprised to see that old Mac hardware is actually quite well documented thanks to Apple's old technotes. Technical Notes provide late breaking information about new Apple technologies and supplementary documentation discussing some of the more complex issues related to programming for the Mac OS. So, how am I going to remake the cable for this thing? Technotes to the rescue The Service Manual certainly doesn't help either: Of course, there's no detailed information on the net about the pinout of an internal video connector for a one-off CRT monitor. What I'm interested in is the internal video connector here, which is at the other end of the cut-off cable: ![]() The inside circuit looked pretty much perfect - No blown caps or anything weird that'd have made me give up on the spot. The tube seemed to work fine when powered on, although there's no real way to make sure without feeding it a proper video signal! What the hell, let's take it apart. I liked the size though, so I grabbed it! Only issue is that its cable was cut off. The Apple Performa Plus Display also had a tilt & swivel stand. Apple slightly modified this device to create the Apple Color Plus monitor, which was essentially the Performa Plus Display in a nicer case. The Apple Performa Plus Display was a low - end Goldstar - built 14 - inch monitor designed and fabricated for the Macintosh Performa series.
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