CRT Connectors ============== Standard RGB CRT connectors (All CGA and EGA laptops) ----------------------------------------------------- PIN Input/Output Signal 1-2 Ground 3 O Red 4 O Green 5 O Blue 6 O Intensity 7 Not used 8 O Horizontal Sync 9 O Vertical Sync Monochrome Monitor (T3200) PIN Input/Output Signal 1-2 Ground 3-5 Not Connected 6 O Intensity 7 O Video 8 O Horizontal Sync 9 O Vertical Sync Enhanced Monitor (T1600, T3200, T5100) PIN Input/Output Signal 1 Ground 2 O Secondary Red 3 O Red 4 O Green 5 O Blue 6 O Intensity / Secondary Green 7 O Secondary Blue 8 O Horizontal Sync 9 O Vertical Sync VGA Monitor DB-15 PIN Input/Output Signal 1 O Red 2 O Green 3 O Blue 4 Reserved 5-8 Ground 9 Reserved 10 Ground 11-12 Reserved 13 O Horizontal Sync 14 O Vertical Sync 15 Reserved