VGM-150 (250-4090) Pinouts Faxback Doc. # 6073 The signal connector is a subminiature 15-pin, D-shell connector. Pin Function Pin Function 1 N/C 9 N/C 2 Video signal input 10 Logic ground 3 N/C 11 Monitor ID - not connected 4 Logic ground 12 Logic ground 5 Self-test input 13 Horizontal sync 6 N/C 14 Vertical sync 7 Video ground 15 N/C 8 N/C N/C = Not Connected (smm 08/24/93)