RGB video port

Pin Number

Signal description

Pin Number

Signal description

Figure D-6
RGB video port pin outs


1


2

3
 

4

5

6


7

8

Signal ground
(Red)

Analog RED

Composite sync


No connection

Analog GREEN

Signal ground
(Green)

-5 volts DC

+12 volts DC

9
 

10

11
 

12

13

14
 

15

Shield

Analog BLUE
 

No connection

Sound 1 volt peak to peak

Monochrome video out

Signal ground (Blue)

No connection


No connection

System ground


Apple Desktop Bus

Pin Number

Signal description

Pin Number

Signal description

1

2

Data

Reserved

3

4

Power (V +)

Return

Figure D-7
Apple Desktop Bus pin-outs


Internal speaker

Pin Number

Signal description

Pin Number

Signal description

1

Positive 1 volt

2

Signal ground

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Specifications

163