Mac Video Connector 15 pin "D" connector
Connector may be reversed depending on which side is viewed. All pins are numbered.
Pin No.	Function	Pin No.	Function
1	Red Ground	9	Blue Video
2	Red Video	10
3	Composite Sync (H)	11	Ground
4	Sense 0	12	Vertical Sync
5	Green Video	13	Blue Ground
6	Green Ground	14	Ground
7	Sense 1	15	Horizontal Sync
8	Reserved