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IC3001 VIDEO/AUDIO SIGNAL PROCESS/HEAD AMP IC-DETAIL BLOCK DIAGRAM
REC VIDEO SIGNAL
PB VIDEO SIGNAL
80
79
78
77
76
75
74
B-Y
INVERT
CR DET
81
COME
82
COLOR
R
DET
DET
LEVEL
DETECTOR
83
P
84
ENVDET
HPF
85
SP2
86
CH2
REC
SP2
MUTE
CH1
87
SP1
88
VCA
SP1
EXT
89
INT
SP2
90
SP
SP2
CH2
91
SP
CH1
SP1
EXT
INT
92
SP1
93
FH
94
TRAP
SP ON
PREAMP
95
R
P
REC ON
96
EP ON
97
VCA
DET
REC
98
EQ
99
100
BAND
GAP
1
2
3
4
5
6
7
REC AUDIO SIGNAL
PB AUDIO SIGNAL
73
72
71
70
69
68
67
66
65
X-TAL
VCO/OSC
2FSC
CCD
REC
PB
REC
KILLER
CONT
APC
APC
AFC
APC
SW
C-ACC
CHROMA
C.K
+
ACC
MIX LEVEL
B.E
ADJUST
C-ACC
FEC
TRAP
+
LPF
R
FH HPF
P
CTL TRAP
REC TRAP
C-D
HiFi TRAP
DELAY
P
2MLPF
ACC
HPF
R
SD
DELAY
SQPB
SQPB
P-EQ
P
S-DET
R
629
FM
G-EQ
TRAP
AGC
DO
DET
REC
FILTER
DET
DLIM
FM MOD
DEMO
P
FO/DEVADJ
SUB
LPF
R
MAIN EMPHASIS
CARRIER OFFSET
REC FBC+ALC
W.C/D.C
PB AGC+APL
ATT
-4dB
MAIN
R
P
DE EMPHASIS
ATT
-6dB
8
9
10
11
12
13
14
15
16
64
63
62
61
60
59
58
57
DOWN
LCVCO
CONV
ACC
ACC
CHROMA
DISCRI
DET
SW
ACC DET
P
VCA
R
CLPF1
CLPF2
P
R
CCD
LPF
4PHASE
P
R
L-DET
MAIN
MAIN
+
CONV1
CONV2
R
P
P
R
R
P
PILOT
PILOT
ADD
ERASE
P
4.43PAL
BPF
MPAL
R
DELAY
SD
P
Y-LPF
R
N.L.
ET LPF
DEH
EMPH
HP-NC
PC
TRAP-NC
P
R
VIDEO AGC
R
ATP
AGC
PG
DET
R*SDECK
R*SDECK
ATT
ATT
ATT
GCL
-10dB
-10dB
-10dB
17
18
19
20
21
22
23
24
56
55
54
53
52
51
GND
CLOCK
DRIVER
50
Y-CCD
49
MODE
48
CONTROL
47
C-CCD
46
CCD SECTION
45
44
P
NP
B.D
C.K
CONV
43
R
INT
EXT
42
41
6dBAMP
40
C-
SQUELCH
39
N.L
SQPB
DE-EMPH
EQ
LPF
SQPB
38
SQPB
GCL
37
P
R
YNR
36
DO
GCL
35
FEED BACK
DO/REC
CLAMP
VIDEO ALC
CLEAR
R*SVHS
SYNC
GCL
34
R*SDECK
R*SDECK
33
R*SDECK
PG
32
SQUE-
V-AMP
LCH
SYNC
31
SEP
GCL
25
26
27
28
29
30
IC3001 DETAIL BLOCK DIAGRAM
PV-D4734S/PV-D4744/PV-D4744S/PV-D4734S-K/PV-D4744S-K
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