COMPONENT MAINTENANCE MANUAL Video Modulator Unit (VMU)(59)

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A13
B6
B7
B8
B9
B10
B11
B12
B13
C6
C7
C8
C9
C10
C11
C12
C13
LD06
PC06
DT06
CK06
A6
A7
A8
A9
A10
A11
A12
A13
B6
B7
B8
B9
B10
B11
B12
B13
C6
C7
C8
C9
C10
C11
C12
C13
LD07
PC07
DT07
CK07
A6
A7
A8
A9
A10
A11
A12
A13
B6
B7
B8
B9
B10
B11
B12
B13
C6
C7
C8
C9
C10
C11
C12
C13
LD08
PC08
DT08
CK08
A6
A7
A8
A9
A10
A11
A12
A13
B6
B7
B8
B9
B10
B11
B12
B13
C6
C7
C8
C9
C10
C11
C12
C13
A6
A7
A8
A9
A10
A11
A12
A13
B6
B7
B8
B9
B10
B11
B12
B13
C6
C7
C8
C9
C10
C11
C12
C13
LD03
PC03
DT03
CK03
A6
A7
A8
A9
A10
A11
A12
A13
B6
B7
B8
B9
B10
B11
B12
B13
C6
C7
C8
C9
C10
C11
C12
C13
LD04
PC04
DT04
CK04
A6
A7
A8
A9
A10
A11
A12
A13
B6
B7
B8
B9
B10
B11
B12
B13
C6
C7
C8
C9
C10
C11
C12
C13
LD05
PC05
DT05
CK05
A6
A7
A8
A9
A10
A11
A12
A13
B6
B7
B8
B9
B10
B11
B12
B13
C6
C7
C8
C9
C10
C11
C12
C13
LD01
PC01
DT01
CK01
A6
A7
A8
A9
A10
A11
A12
A13
B6
B7
B8
B9
B10
B11
B12
B13
C6
C7
C8
C9
C10
C11
C12
C13
LD02
PC02
DT02
CK02
C19
A20
B20
C20
SC5
SC6
SC7
SC8
A21
A22
A23
A24
A25
A26
A27
A28
A29
A30
A31
A32
B21
B22
B23
B24
B25
B26
B27
B28
B29
B30
B31
B32
COAX CABLE
ASSEMBLIES
TO J1B
(A5 CARD DOES
NOT INCLUDE
THEM)
32
31
30
29
28
27
26
25
24
RL1
CN20
TEST VIDEO HI
TEST VIDEO LO
VIDEO CH1 HI
VIDEO CH1 LO
VIDEO CH2 HI
VIDEO CH2 LO
VIDEO CH3 HI
RF VIDEO OUT 1
RF VIDEO OUT 2
RF VIDEO OUT 3
RF VIDEO OUT 4
+8V
+32V
-9V
RL CONT
VID CH2/BITE HI
D1
TO J1-1
TO J1-2
TO J1-3
TO J1-4
VID CH1/TEST HI
VID CH1/TEST LO
VID CH2/BITE LO
VIDEO CH3 HI
TG CONT
VIDEO CH10 HI
VIDEO CH10 LO
VIDEO CH11 HI
VIDEO CH11 LO
VIDEO CH12 HI
VIDEO CH12 LO
VIDEO CH3 LO
VIDEO CH4 HI
VIDEO CH4 LO
VIDEO CH5 HI
VIDEO CH5 LO
VIDEO CH6 HI
VIDEO CH6 LO
VIDEO CH7 HI
VIDEO CH7 LO
VIDEO CH8 HI
VIDEO CH8 LO
VIDEO CH9 HI
VIDEO CH9 LO
RS-232C DATA OUT
RS-232C DATA IN
RS-232C DATA RTN
23
22
21
20
19
18
17
16
15
14
13
12
11
10
987654321
VIDEO CH10 HI
VIDEO CH10 LO
VIDEO CH11 HI
VIDEO CH11 LO
VIDEO CH12 HI
VIDEO CH12 LO
VIDEO CH3 LO
VIDEO CH4 HI
VIDEO CH4 LO
VIDEO CH5 HI
VIDEO CH5 LO
VIDEO CH6 HI
VIDEO CH6 LO
VIDEO CH7 HI
VIDEO CH7 LO
VIDEO CH8 HI
VIDEO CH8 LO
VIDEO CH9 HI
VIDEO CH9 LO
VIDEO SHIELD
RS-232C DATA OUT
RS-232C DATA IN
RS-232C DATA RTN
CN39 A5 CN40 A5
2
1
3
4
VIDEO CH2 LO
VIDEO CH2 HI
VID CH2/BITE HI
VID CH2/BITE LO
5
4
3
2
1
GND
+8V
TG CONT
+32V
+8V
-9V
GND
GND
GND
GND
OUT
IN
IN
IN
CN23
CN24
CN25
CN26
GND
GND
　
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