HP COMPAQ TC4400 Maintenance And Service Manual page 208

Connector Pin Assignments
Pin Signal
1 S-VHS color (C) signal
2 Composite video signal
3 S-VHS intensity (Y) signal
4 S-VHS color ground
D–6
Table D-7
S-Video-Out
Pin
5
6
7
Signal
TV-CD
S-VHS intensity ground
Composite video ground
Maintenance and Service Guide