Appendix C - Technical Specifications
Input - from computer video card
Signals
1
2
3
4
5
7
8
9
10
6
11
12
13
14
15
15pin socket viewed externally
Red, green and blue @ 0.7v peak white (0.8v absolute maximum).
Connection & usage of 'PC IN' connector for the external version:
Pin Use
Pin Use
1
Red 0.7v max. / 75 Ohms
9
Passed to PC OUT pin 9
2
Green 0.7v max. / 75 Ohms
10
Ground
3
Blue 0.7v max. / 75 Ohms
11
Ground
4
ID 2, passed to PC OUT pin 4
12
ID 1, passed to PC OUT pin 12
5
Ground
13
Horizontal Sync TTL
6
Red ground
14
Vertical Sync TTL
7
Green ground
15
Passed to PC OUT pin 15
8
Blue ground
The intern al version's Y-splitter cable passes all the signals from th e graphic card to th e
monitor output, except: pin 9 (not connected), and pins 10 and 11 which are joined
together at the graphic card and passed to the monitor on pin 10 (ground).
Resolutions
Absolute maximum 1600x1200.
Maximum 1024x768 with no line dropping in NTSC, 1280x1024 in PAL .
24 bit compatible - 23 bits stored .
24kHz to 100kHz horizontal scan rate.
Virtually any vertical scan rate accepted - horizontal scan rate is more important.
Separate TTL-level HSync & VSync positive or negative going.
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