Panasonic NV-MV20EG Service Manual page 132

IC3001
JK4902
TW3002
AV1(TV)
Q4907
VIDEO
19 AMP
OUT
TW3004
15
VIDEO
20
IN
17
19
21
TO TUNER
RFC VIDEO OUT
23
26
FROM
TV DEMODULATOR
TUNER VIDEO
33
35
37
38
40
49
51
36
L3002,
C3005
PEAKING
12
FILTER
9
8
71
X3001
69
65
53
TO
SYSTEM CONTROL
S-VHS DET H 20
VIDEO MAIN SIGNAL PATH IN REC MODE
(AUDIO/VIDEO SIGNAL PROCESSOR)
SVHS
ATT ATT
-6dB -4dB
SVHS
ATT
-10dB
R
VIDEO
AGC R
ATT
-10dB
ATP
P
ATT
-10dB
SVHS+L SECAM
R
GCL
SECAM DELAY
Y-LPF
+SSEQ
SVHS+L SECAM
P
R
P
R(SVHS)
R(SVHS)
GCL
DO/REC
HP-NC
Y-NOISE PHASE
REDUCTION TRAP-NC COMPARATOR
GCL
DO
LPF
NON-LINEAR
DEH
EMPHASIS
Y-CCD
DELAY
ET LPF
REC FBC+ALC
PB AGC+APL
MAIN
DE-EMPHASIS
MAIN EMPHASIS
fo/DEVIATION
CARRIER OFFSET
ADJUSTMENT
W.C/D.C
SUB
DEMO DLIM G-EQ
LPF
X'TAL
VCO
OSCILLATOR
SQPB
SQPB FM
P-EQ
AGC
2FSC
SQPB
DL
C CLOCK
TO C CCD
DRIVER
S-VHS
DET
VIDEO MAIN SIGNAL PATH IN PLAYBACK MODE
FIXED TO INT IN
THES MODELS BY
EXT PIN53
2MHz
LPF
INT
P
ACC
HPF
R
CLEAR
SQUELCH
SYNC
FEED BACK
CLAMP
VIDEO ALC
R P
PILOT
ADD
NON-LINEAR
DE-EMPHASIS
BPF
SQPB
SQPB
B.D
EQ
SQPB
PILOT
ERASE
APC SW
PB APC
MIX
KILLER B.E LEVEL
ADJUST
REC APC
ACC SW
NO
FREC TRAP
FREC
TRAP
ACC DET
L SECAM
CHROMA
ACC DET
L SECAM LPF
FM REC
MODULATION FILTER
REC
+
MUTE
R
INT
629MHz
TRAP
P
EXT
EXTERNAL PB LUMINANCE
SIGNAL INPUT LINE
(NOT USED IN THESE MODELS)
EXT
6dB C-
AMP SQUELCH
INT
NTSC/PAL COLOUR
CONVERTER KILLER
R
R
MAIN R
C LPF2
CONV 2
P
P
P
+
R
R P
MAIN
CONV 1
P
4.43PAL MPAL
CONV DELAY
C LPF1 +
CHROMA COLOUR
ACC KILLER
L SECAM
C-ACC:ON
fh HPF
CTL TRAP
L SECAM
THROUGH
P
REC TRAP/ C-
Hi-Fi TRAP DELAY
R
SP2
SP2
CH2
CH1
SP1
VCA SP1
IC6001
V-AMP
Q6009
OSD
29 BUFFER 50 SIGNAL 52
PROCESS
59
VCA 57
71 IIC CLOCK
C CCD 55 72 IIC DATA
46
(E)
CCD
45
LPF
L6002,
Q6003 C6006
BUFFER BPF
(A/B/C)
Q6004
AMP
IC6003
(OSD u-COM SLICER)
DATA 74 5 SDA
VCBS 17
CLOCK 73 4 SCL
85
P5001
SP L
3
TO/FROM
P5001
86 SP COM DD CYLINDER
2
VIDEO HEAD
P5001
SP R
1
87
NV-MV20EG/EB/EBL,MV15EG/EP
LUMINANCE & CHROMINANCE BLOCK DIAGRAM