Computer Video Port Pin Assignments

The Computer 1 analog port (VGA) and the Monitor Out port are female video RGB, 15-pin micro-D-style connectors. Here are their pin assignments:

Pin no.

Computer 1 port

Monitor Out port

 

 

 

1

Red video

Red out / red video

 

 

 

2

Green video

Green out / green video

 

 

 

3

Blue video

Blue out / blue video

 

 

 

4

Monitor (ID bit 2)

Reserved

 

 

 

5

GND

GND

 

 

 

6

Red video GND

GND

 

 

 

7

Green video GND

GND

 

 

 

8

Blue video GND

GND

 

 

 

9

+5 V

Reserved

 

 

 

10

Synchronous GND

GND

 

 

 

11

Monitor (ID bit 0)

Reserved

 

 

 

12

SDA

Reserved

 

 

 

13

Horizontal sync

Horizontal sync

 

 

 

14

Vertical sync

Vertical sync

 

 

 

15

Reserved

Vertical sync

 

 

 

Appendix C: Technical Specifications 103