Panasonic PV-D4733S-K Service Manual page 56

IC3001 IC- DETAIL BLOCK DIAGRAM
30 29 28 27 26 25 24
VCC
DOP DET
S-VHS PHASE
8MHz
DET
DET TRAP COMPENSATOR
ENV
DET
S-VHS
DOUBLE
31
PEAKING
LIMITER
BPF &
VHS
GAIN CTL AMP
629KHz
TRAP
32 GND
FM
LPF
DEMODULATOR
33
34
35
36 VCC
ENV
DET
37
38
L
PB REC
R
39 SP
40 LP/SLP
SP
41 GND
LP/SLP
42
43 D-REC
R
ON
L
44
45
46 VCC
47 VCC
48
49
50
SP/LP
-ON
PB AMP
REC
-OFF
51 52 53 54 55 56 57
23 22 21 20 19 18 17 16 15 14
GND
AT ENV
INT
DET
EE
W/D
CLIP
PB:OFF
EXT
VV
Y/C FM
MIX MODULATOR
RF
AGC
MAIN
DE-EMPHASIS
CLAMP
COLOR
KILLER SW
LIMITER
VV EE
APC
1/40
AGC
DET
fH SUB
AGC
Trap
VV EE COMB
REC
ROTARY
AMP
REC SLP
1/4
-ON -ON
GND VCC
58 59 60 61 62 63 64 65 66 67
REC VIDEO SIGNAL PB VIDEO SIGNAL REC AUDIO SIGNAL
13 12 11 10 9 8 7 6 5
GND
GCA
YNR
MAIN MUTE
EMPHASIS
LPF
ARTFICIAL
DOC
V/H
SW
SYNC MIX
CLAMP
YNR
ON
OFF
MIX
Y/C
EE VV
MIX
CLAMP
GCA DET
VV EE
HPF HPF
CLAMP
DELAY
LIMITER
LPF
NON LINEAR NON LINEAR
ANR
DE-EMPHASIS EMPHASIS
VV
VV
EE
REC
PB
PB
ACC
ACC
DET REC
R F
I N
PB REC REC PB
SUB
MAIN MAIN
LPF
CONV CONV
PB REC
REC
LPF LPF
AMP
COLOR
KILLER
629KHz
REC PB PB REC
DETECTOR
LPF
SP
DET GCA
+
CCD
LP/SLP
LPF
FREQUENCY 4Phase
select
DET
REC
+
LP/SLP
SP
SP
PB
BPF
1/4 Side AFC
Lock
LP/SLP
+
-1
EE VV
FSC
2FSC
VCO
BPF
1/2
GND GND
VCC
68 69 70 71 72 73 74 75 76
PB AUDIO SIGNAL
4 3 2 1
V-REG VCC
ATT
TUNER
100
ATT
LINE 1
ATT
99
LINE 2
98
AGC DET 97
AGC
96
SYNC
95
SEPARATION
EE
94
93
92
91
90
89
88
I 2 C
BUS
87
86
85
COMB CHROMA
AMP
PHASE
VCC
84
COMPENSATOR
83
Busrst up/down CNR
4.8MHz 3.58MHz COMPOSITE
82
TRAP BPF
COMPONENT
81
PB REC
ATT
COMPONENT
X2 VXO
COMPOSITE
77 78 79 80
PV-D4753S-K/PV-D4763S-K
IC3001 DETAIL BLOCK DIAGRAM