Panasonic Omnivision PV-9661 Service Manual page 295

PV-9661 / PV-9662
IC3001 VIDEO/AUDIO PROCESS IC-DETAIL BLOCK DIAGRAM, AN3479FBP
21 20
VCC
22 VREG
TUNER
LINE2
23
LINE1
24
ARTIFICIAL
Y/C MIX
25
V/H SYNC MIX
GCA
DETECTOR
26
GAIN
27 LPF CLAMP
CTL AMP
28
GND
YNR
29
DOC SW
30
HPF LIMITER
31
32
33
34
REC RF
FM
35
EQUALIZER MODULATOR
36
37
REC
RF
38 AGC
PB
AGC
39
DET
AT ENVE
REC
DETEC- AMP
40
TOR
41
Y/C
REC-ON
PHASE
42 GND
COMPENSATOR
43 44
19 18 17 16 15 14 12 11
13
COMPOSITE
AGC REC
REC
ATT
COMPONENT
AGC DET PB
COLOR COMPONENT
PB
KILLER
SW
CLAMP COMPOSITE
4.8MHz
TRAP
SYNC
SEPARATION
REC
ON
REC
DELAY LPF
GCA
OFF DET
CLAM
PB
PB
ANR
REC PB
NON LINEAR
DE-EMPHASIS
NON LINEAR
HPF LIMITER
EMPHASIS
REC
MAIN
W/D
CLAMP
CLIP EMPHASIS
PB
MAIN
DE-EMPHASIS
COLOR
KILLER SW
DOP DOUBLE FM
629KHz ENVE
TRAP LIMITER DEMODULATOR
DETECTOR DETECTOR
PEAKING BPF
/GAIN CTL AMP
8MHz
TRAP
ROTARY
VCC SW
45 46 47 48 49 53
50 51 52
REC VIDEO SIGNAL PB VIDEO SIGNAL REC AUDIO SIGNAL
10 9 8 7 6 5 4 3
VCC
CNR
2
I C BUS
3.58MHz BURST CHROMA
UP/DOWN PHASE
BPF
COMPEN-
SATOR
X2 BPF
PB
ACC DET
PB
REC
REC
SUB
ACC
1/40
CONV
1/4 SIDE LOCK
PB REC
MAIN
LP
CONV
-1
REC PB
GCA
ROTARY 1/4
CCD
PB
LPF
REC
REC
MAIN REC
4 PHASE
CONV
LPF
SELECT
PB PB
COLOR
KILLER
+
DETECTOR
RF IN SUB LPF
SP
PB
LP/SLP
REC
629kHz
REC
SP
AMP
LPF
+
LP/SLP
REC
PB
LPF
SP/LP-ON
PB AMP
REC-ON
REC REC-ON
SLP-
-OFF
ON
54 55 56 60 61
57 58 59
46
PB AUDIO SIGNAL
2 1
84
83
82
VXO
81
2FSC
80
FSC
AFC
REC
79
PB
78
+
77
GND
VCO
76
FREQUENCY
DET
75
APC
GND 74
73
PB
MUTE
1/2
72
VCC
LINE
TUNER
71
DET 70
AGC
fH LINE
69
TRAP AMP
VCC 68
67
LP/SLP
-ON
66
REC
65
AMP
REC-ON
64
GND
62 63