– 33 –
2
4
6
8
10
12
14
16
CAM1
CAM2
CAM3
CAM4
CAM5
CAM6
CAM7
CAM8
TO
MAIN BOARD
...CN101
CN101
IC78
6dB VIDEO AMP
IC86
16x8 CROSS
POINT SWITCH
2
4
6
8
10
12
14
16
CAM9
CAM10
CAM11
CAM12
CAM13
CAM14
CAM15
CAM16
TO
MAIN BOARD
...CN102
CN102
1
8
CAM1
CAM2
4
CH1
5
CH2
IC79
6dB VIDEO AMP
1
8
CAM3
CAM4
4
CH3
5
CH4
IC80
6dB VIDEO AMP
1
8
CAM5
CAM6
4
CH5
5
CH6
IC81
6dB VIDEO AMP
1
8
CAM7
CAM8
4
CH7
5
CH8
IC82
6dB VIDEO AMP
1
8
CAM9
CAM10
4
CH9
5
CH10
IC83
6dB VIDEO AMP
1
8
CAM11
CAM12
4
CH11
5
CH12
IC84
6dB VIDEO AMP
1
8
CAM13
CAM14
4
CH13
5
CH14
IC85
6dB VIDEO AMP
1
8
CAM15
CAM16
4
CH15
5
CH16
BUFFER
Q145
IC87
SELECTOR
IC88
SELECTOR
BUFFER
Q146
BUFFER
Q147
BUFFER
Q148
BUFFER
Q149
BUFFER
Q150
BUFFER
Q151
BUFFER
Q152
BUFFER
Q153
BUFFER
Q154
BUFFER
Q155
BUFFER
Q156
BUFFER
Q157
BUFFER
Q158
BUFFER
Q159
BUFFER
Q160
CAM1
CAM2
CAM3
CAM4
CAM5
CAM6
CAM7
CAM8
CAM9
CAM10
CAM11
CAM12
CAM13
CAM14
CAM15
CAM16
13
14
15
12
1
5
2
4
A
B
C
E
13
14
15
12
1
5
2
4
A
B
C
E
11
10
9
6
3
11
10
9
6
3
a
1
2
IC136
SPOTC0
SPOTC1
SPOTC2
SPOTC3
BUFFER
FSSEL8
Q162
BUFFER
Q163
IC89
SELECTOR
BUFFER
Q161
BUFFER
VIN
Q172
IC90
SYNC
SEPARATOR
BUFFER
Q170
BUFFER
Q169
IC136
IC136
0
1
FSSEL6
5
1
7
6
From Switch Board(3/3)
VSYNC
CSYNC
2
b
3
3
1
4
IC76
SELECTOR
0
1
5
1
7
6
SPOT1
5
6
HSYNC
c
To/From Switch
Board(3/3)
X0
X1
X2
X3
X4
X5
X6
X7
X8
X9
X10
X11
X12
X13
X14
X15
CH1
CH2
CH3
CH4
CH5
CH6
CH7
CH8
CH9
CH10
CH11
CH12
CH13
CH14
CH15
CH16
37
36
35
34
33
32
9
10
11
12
13
14
31
30
7
8
Y0
Y1
Y2
Y3
Y4
Y5
Y6
Y7
AX0
|
AX3
AY0
|
AY2
DATA
CS
STRB
RESET
39
41
43
1
23
21
19
17
V0
V1
V2
V3
V4
V5
V6
V7
42
40
20
3
2,26,27
DB4-DB6
DB0-DB7
4,5,24,25
DB0-DB3
DB7
c
5
12
b
13
6
IC104
IC104(e)
IC75(c)(d)
IC75
IC102
MICROPROCESSOR
IC101
EEPROM
SW1
SW2
CLOCK
GENERATOR
IC103
VOLTAGE
DETECTOR
To Switch Board(2/3)
To Switch Board(3/3)
6
WR
5
I
5V
4
CS
SCK
DI
DO
P63
P62
P60
P61
P52
P40
P77
P64
P65
P80
P81
P82
P83
P84
P85
P87
1
2
3
4
80
1
3
2
66
P86
P67
XIN
RESET
P41
P43
76
30
27
28
24
IC104(e)
IC107
X15
O
G
1
2
3
4
1
2
IC108
SRESET
AD0-AD15
DB0-DB7
WR
RD
41-56
AD0-AD15
AD0-AD15
AD0-AD12
2-10,21,23-25
DB0-DB7
11-13,15-19
A0-A12
I/O1-I/O8
WE
OE
CE
DB0-DB7
CPUWR
33-40
DB0-DB7
P34
P50
P51
RVD
P42
P66
FSSEL6
FSSEL8
17
29
4
79
78
72
71
70
69
68
67
65
WR
WR
CSA
RD
58
57
60
19
18
25
77
BUFFER
Q165
BUFFER
CAMSW SPOT
IDON
IDEQ
OSDSCK
OSDCS
FSSEL1
FSSEL2
FSSEL3
FSSEL4
FSSEL5
Q164
To/From
Switch Board(3/3)
TO (2/3)
IC99
S-RAM
To/From
Switch Board
(2/3) (3/3)
To Switch Board(2/3)
To/From
Switch
Board(3/3)
From
Switch Board(2/3)
To Switch Board(2/3)
RESET
SRESET
SRESET
RD
27
22
20
A
B
C
G2A
G2B
G1
Y0
Y1
IC91
3-8 DECODER
A
B
C
G2A
G2B
G1
Y0
Y1
Y2
Y3
Y4
Y5
Y6
Y7
IC92
3-8 DECODER
A
B
C
G2A
G2B
G1
Y0
Y1
Y2
Y3
Y4
Y5
Y6
Y7
IC93
3-8 DECODER
OC
CLK
DB0-DB7
D1
|
D8
Q1
|
Q8
IC94 D-FF
1
2
3
4
5
6
1
2
3
4
5
6
1
2
3
4
5
6
15
14
5V
AD13
AD14
AD15
AD8
AD9
AD10
AD11
AD12
AD8
AD9
AD10
AD11
AD12
15
14
13
12
11
10
9
7
RDEC1C
RDEC2C
RWB1CS
RWB2CS
To
Switch
Board
(3/3)
15
14
13
12
11
10
9
7
MDEC1C
MDEC2C
MWB1CS
MWB2CS
1
2
a
IC104
a
a
d
a
b
c
b
WR
RVD
2
1
3
2
1
4
5
4
5
2
1
3
6
8
6
3
12
13
10
9
11
IC75
IC105
IC105
IC105
IC105
IC135
IC135
CLK
16-19
12-19
12-19
16-19
12-15
SPOTC0-SPOTC3
ADSEL0-ADSEL7
D1
|
D8
Q1
|
Q4
IC95 D-FF
CLK
D1
|
D8
Q1
|
Q8
IC97 D-FF
CLK
D1
|
D8
Q1
|
Q4
Q5
|
Q8
IC134 D-FF
2-9
2-9
2-9
2-9
3
4
1
b
IC104
PRVDN
OSDSEL
COSD0-COSD7
WSYS4-WSYS7
WSYS0-WSYS3
11
11
11
11
CSA
WEA
OEA
A0A
A1A
A2A
A3A
A4A
A5A
A6A
A7A
I/O0A
I/O1A
I/O2A
I/O3A
I/O4A
I/O5A
I/O6A
I/O7A
41
40
38
37
36
35
34
33
32
31
30
22
23
24
25
26
27
28
29
CSB
WEB
OEB
A0B
A1B
A2B
A3B
A4B
A5B
A6B
A7B
I/O0B
I/O1B
I/O2B
I/O3B
I/O4B
I/O5B
I/O6B
I/O7B
IC98 MAIL BOX
1
2
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
AD0
AD1
AD2
AD3
AD4
AD5
AD6
AD7
DB0
DB1
DB2
DB3
DB4
DB5
DB6
DB7
29
27
26
25
24
23
21
20
19
18
17
15
14
13
12
11
9
8
7
6
5
4
3
2
CAMSW REC
DPRCS
DPRWE
DPROE
DPRA0
DPRA1
DPRA2
DPRA3
DPRA4
DPRA5
DPRA6
DPRA7
DPRD0
DPRD1
DPRD2
DPRD3
DPRD4
DPRD5
DPRD6
DPRD7
FLGSET
DPRFLG
RVD
INT/EXT
TO
MAIN BOARD
...CN104
CN104
3
5
6
7
9
10
11
13
14
15
17
-5V
+5V
ADSEL7
ADSEL6
ADSEL5
ADSEL4
ADSEL3
ADSEL2
ADSEL1
ADSEL0
CAMSW REC
CN51
-5V
+5V
WR
RD
CSA
AD0-AD7
DB0-DB7
PR
D
Q
Q
CLK
CLR
SRESET
RVD
INT/EXT
5
4
3
1
2
DPRFLG
FLGSET
IC100
D-FF(a)
From Switch Board(2/3)
BLOCK DIAGRAM OF SWITCH BOARD (1/3)
SWITCH BOARD (1/3)
RSYNC2
0
1
2
3
4
5
6
7
0
1
2
3
4
5
6
7