JVC HR-S6970AA Service Manual page 38

VIDEO BLOCK DIAGRAM (1)
0 5 2D DIGITAL
IC1201 (Y/C SEP & MIX)
REC
COUT
PS com/CNR
PB
REC
3L COMB YOUT
Y COMB
PB
REC
PB
VREF
10 5
19 35 34
Q1204 Q1205
BUF
BUF LPF
Q1203
BPF BUF
CN1201
1 11 12 3 5 7
1 11 12 3 5 7
CN501
0 3 MAIN (S-SUB)
41
44
AVDD
40
C
BPF
WF10
Q1202
BUF
9
Y
WF11
9
WF12
C
WF13
C
C
WF14
NOT
USED
C
Y
C
C
WF7
WF8
Y
WF9
+ +
35
42 41 40 38 37 36 33
PB - Y
ATT
43 CR ADJ
BF BF
DC
REGEN
44
REC
SSEP LIM2
PB SW11
45
SW5
GCL SW7
CONV CONV CONV CONV
DIG OSD
SW10 LIM1
DIG
OSD
47
PRE
LPF1
SW18
PB+
46
REC+ SW4 EXT IN VIDEO REC * REC *
PB * 0dB ACC:OFF
ACC:ON
VHS[H] PB * +1dB
SW9
EXT IN VIDEO
SW6
+1dB
VCA
NC
49
SW3 SW8
CK
REC PB
DIG DIG DIG DIG SW12
D13
51
CH1-C
PB
SW2
DIG FIL DIG
FIL
52 OSD OSD OSD OSD
REC REC PB
C DIG OSD
SW13 SW15
SW17 SW1 C MUTE
CH2-C
OSD OSD OSD OSD
SW14 SW16
POSLPF 2 POSLPF 1 YFBC
54
PRE
LPF2
ATT ATT YMUTE CMUTE
+6
SW19
CL2 CL2
56
D1 * D14 * D15
CLK DATA
IC501
1 3 5 7 8 9 10
( S-SUB ) NOT
NOT
USED
USED
WF1 WF2
C
Y
C
2-27 2-28
Y
32 31 29
28
IN
EQ
ATT ATT
27
REC
SP
EQ
PB
EP
REC
PB 26
PB
REC
NVHS
PB
REC
SVHS
SUB-EMPH 24
OUT
22
D15
D9
20
FILTER
WF6
TRAP
18
ATT
VFBC
17
VMUTE
16
V - OUT
WF5
Y - OUT C - OUT
12 13 14
+
WF4
WF3
C
C
TO
SYSCON
V_FROM_OSD
I2C_DATA
I2C_CLK
V_TO_OSD
V_FROM_OSD
1
C_OUT
C
2
Y_OUT
Y
3
C_IN_CH2
4
C_IN_CH1
C
5
Fsc
6
TO_SUB_EMPH
7
FROM_SUB_EMPH
8
PB_COLOR
9
Y_TO_SUB
Y
10
SYNC_OUT
11
V_FROM_AV
12
Y Y_TO_AV
13
C REC_COLOR
14
VHS[H]
15