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ICs BLOCK DIAGRAM/ TERMINAL DESCRIPTION
Q207 : LA73054 (6-CHANNEL VIDEO DRIVER)
Block Diagram
V
CC +5V
COMPOSITE IN
SQUEEZE SW
LETTE BOX SW
MUTE SW
(ON/OFF)
C IN
GND
Y1 IN
Y/C MIX SW
(MIX/COM)
IN SW
(G/Y)
TE
L 13942296513
Y2(G) IN
MUTE SW
(ON/OFF)
LPF SW
(OFF/ON)
Cb(B) IN
AMP4
6 SW
(9dB/6dB)
Cr(R) IN
GND
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1
2
CLAMP
C_OFFSET
3
DC_CTL
4
5
2 Step
6
LPF 1
Amp 2
7
Y/C
MIX
2 Step
8
CLAMP
Amp 3
9
SYNC
SEP
10
PEDESTAL
CLAMP
11
2 Step
Amp 4
CLAMP
12
13
2 Step
14
PEDESTAL
CLAMP
Amp 5
15
PEDESTAL
2 Step
16
CLAMP
Amp 6
17
VCC
18
REG
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2 9
8
2 Step
LPF
Amp 1
75
DRIVER
75
DRIVER
75
LPF 1
DRIVER
Q Q
3
6 7
1 3
1 5
LPF 2
75
DRIVER
LPF 1
LPF 2
75
DRIVER
LPF 1
LPF 2
75
DRIVER
LPF 1
co
.
9 4
2 8
AMP1
3 SW
36
(9dB/6dB)
35
2 Drive/1 Drive
V
34
CC +5V
COMPOSITE
33
OUT
32
GND
31
C OUT
30
C_ DC OUT
29
GND
28
Y OUT 1
27
GND
0 5
8
2 9
9 4
2 8
26
GND
25
Y OUT 2
V
24
CC +5V
23
Cb OUT
22
GND
21
Cr OUT
20
GND
2 Drive/1 Drive
19
m
DV-SP500
9 9
9 9
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