JVC HR-XV2EK - Page 73

3-24 3-25
4. Y/C BLOCK DIAGRAM
(PB MODE)
+
+
28 51 49 53
98
73 6574
80 85 86 87 89 91 90 83
IC301
HA118725
76 77
10
67 69
29 30
3640383733 34
31 32
57 45 43 42 46
55
EP CH1 EP CH2
V. OUT
(TO u-COM)
D-V SYNC
(FROM u-COM)
System System
Y-CCD
C-CCD
CLOCK Drive
LPF
REC-AMP
SP CH2
REC-AMP
SP CH1
REC-AMP
EP CH2
REC-AMP
EP CH1
DATA
(FROM u-COM)
System
CLOCK
(FROM u-COM)
System
V.H/SW30
(FROM u-COM)
V.ENV
(TO u-COM)
System
SP CH1 SP CH2
Serial Cont
interface
X-tal
VCO/OSC
TRAP
629K
FM AGC P.EQ G.EQ D LIM Y LPF
Main
De-Empf
DEMO
S LPF
2M LPF
ACC
CTL Trap
fh Trap
HIFI Trap
C LPF DEALY
MIX
AMP
6dB
AMP
C-
SQUELCH
SQUEL CH
CLEAR
SYNC
CLAMP
CLAMP
Sharpness
CONTROL
YNR NC
SYNC SEP
C-SYNC
(TO u-COM)
System
NL
De-eMPH
VCA
C.K
LPF
BDBPF
CCD LPF
APC/ACC
DET
L- DET
Main
Conv2
Main
Conv1
FBC
Video ALC
(REC MODE)
+
+
++++
28 29 51 49 53 55
46
19
15 17 18 36 40 38 37 23 26 31 14 9 8 11
LINE 2
VIDEO IN
LINE 1
VIDEO IN
TV
VIDEO IN
57
45 7365 74 6967
80
85 86 87
89
91 90
ATT -10dB
VIDEO
AGC
CLEAR
SYNC
V. OUT
(TO u-COM)
D-V SYNC
(TO u-COM)
System
System
System
Y-CCD
C-CCD
CLOCK Drive
6dB
AMP
FBC
Video ALC
SQUEL CH
ATT -10dB
C-SYNC
(TO u-COM)
ATT -10dB
LPF
AGC DET
CLAMP
YNR
CLAMP
SYNC
SEP
D.E.
C-LPF 2
SPFACC
HPF
C-LPF 1
NL Emph
REC FILTER
LPF
VCA
629K
TRAP
FBC
ALC
Main
Conv2
Main
Conv2
APC/ACC
DET
Main
Emph
FM
MOD
REC
Trap
REC-AMP
SP CH2
REC-AMP
SP CH1
REC-AMP
EP CH2
REC-AMP
EP CH1
MIX
ATT
B.E
C.K
CCD
LPF
L-DET
JCA
(-4dB)
f0=1.68M
f/0DEV
Adjst
X-tal
VCO/OSC
Serial Cont
interface
DATA
(FROM u-COM)
System
CLOCK
(FROM u-COM)
System
V.H/SW30
(FROM u-COM)
System
SP CH1 SP CH2 EP CH1 EP CH2
IC301
HA118725
32 30