DR-
8000 Video Switching Matrix
-21-
n
Video output character screen overlay board
l
Video output character screen overlay board installation
Picture 20, Video output character screen overlay board installation
a) Put in the Video output character screen overlay board as picture 20 shows
；
b) Tighten the irremovable screws
；
c) Note: Video output character screen overlay board is hot swappable.
6.8.2 Notes for Video output character screen overlay board
Picture 21, Video output character screen overlay board schematic picture
7
O
N
1
2
1
2
3
4
5
6
7
8
0
6
O
N
1
2
3
4
5
6
7
8
0
6
O
N
1
2
3
4
5
6
7
8
0
6
ON
1
2
3
4
5
6
7
8
0
6
ON
SW 4
SW 8
SW 6
SW 10
1
2
3
4
5
1
2
3
4
5
6
7
8
0
6
O
N
1
2
3
4
5
6
7
8
0
6
O
N
1
2
3
4
5
6
7
8
0
6
O
N
1
2
3
4
5
6
7
8
0
6
O
N
SW3
SW7
SW5
SW9
1
2
3
4
5
6
7
8
0
6
O
N
1
2
3
4
5
6
7
8
0
6
ON
1
2
3
4
5
6
7
8
0
6
O
N
1
2
3
4
5
6
7
8
0
6
ON
S W4
S W8
S W6
S W10
8
6
7.
背面
BIT1
BIT2
BIT3
BIT4
BIT5
BIT6
BIT7
BIT8
