68kMLA Classic Interface

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IIsi Pivot and AppleColor Hi-Res RGB Monitor
Posted by: hfrazier on 2018-09-26 20:17:19 Hi Everyone! I am trying to get my 'AppleColor High-Resolution RGB Monitor' (M1297) working with my SE/30 with a hacked-in IIsi pivot. It just doesn't want to detect it... However if I first connect a VGA monitor through a Mac to VGA monitor adapter, let the computer boot, then switch over to the RGB AppleColor monitor it works. Otherwise, the pivot does not initialize (or will initialize at the default portrait mode that the RGB monitor ignores.) I have the pivot directly wired at the moment to a DA-15 connector, as shown here. Does anyone have any thoughts?? I've experimented jumping the sense lines to no avail. Any help or pointers would be greatly appreciated!
Posted by: hfrazier on 2018-09-27 09:46:15 Nevermind... I needed to ground pin 4 to 11 (C&VSYNC.GND) and not pin 1 (1 RED GND/Chassis)! http://old.pinouts.ru/VideoCables/MacVideoToVGA_pinout.shtml ...In case there's anyone who also has this issue.
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