JVC HR-XVS20AA Schematic Diagrams page 27

VIDEO BLOCK DIAGRAM(1)
0 3 MAIN ( S-SUB , 2D DIGITAL, TERMINAL )
EQ
EQ
EQ
EQ
5 0 DVD IF
Y 6
6dB
V 4
NOT
6dB
USED
C 2
6dB
CY 12
6dB
CN8003
TO
Y/G 16
DVD MEMORY CN502 PB 14
6dB
14
CVBS/C
Pb/B 12
PR 16
Pr/R 10 6dB
J7005
Y
COMPONENT_OUT
PB
PR
J7002 Y
C
S_IN
J7002 Y
C
S_OUT
J7102
FRONT
3 6 S JACK
S _IN
1
CN7108
3
4
Y
4
2
C
2
Note:For the waveforms inthis schematic diagram,refer to page 2-52.
IC502
( S-VHS & S-VHS ET SWITCH )
1
18
SP
17 2
SP
EE(L)
16
PB REC
12 5
NON LINEAR
PROCESSOR
PB
6
11
REC
SP
10
SP
IC8101
CN8005 CN7301
28 Y
LPF 75Ω 11 7
V
9 9
C
31
7 11
LPF 75Ω
33
LPF 75Ω
CY
13 5
25
PB
LPF 75Ω
15 3
PR
17 1
22
LPF 75Ω
19
LPF 75Ω
1 Y
2
3 PB
4
PR
6
5
10
9
Y
11
C
12
Q7106
IC7101
Q7102 9 DVD_Y_OUT
BUF
6
BUF
8 Y_OUT
13
14
Y
16
C
15
Q7108
IC7101
Q7103 1 DVD_C_OUT
BUF
3
BUF
16 C_OUT
IC1201 (Y/C SEP & MIX)
34
SDDATA
35
SCLK
L1205
C1222, C1223
Q1202
REC R1213
41
COUT
BPF BUF
PS com/CNR
PB
REC
3L COMB 44
YOUT
LPF BUF
Y COMB
PB
L1206 Q1203
C1225, C1226
REC PB R1216
Q1205
CN7103 19 10 5
FRONT Y
AMP
1
FRONT C
Q1204, L1208
3
C1238, C1239, C1245
BPF
C
+
WF20
42 41 40 39 38
CR
CLK DATA
ADJ
IIC LOGIC
PRE LPF
43 PB DIGI/PB
Y
CLAMP
REC
PRE LPF ATT DIGI
WF21
DIGI/PB
EXT PB Y
45
Y
PRE LPF DIGI
WF22
47
C
PRE LPF
WF23
48 EXT PB C
C
PB REC
WF24 EXT PB C
49
50
NOT
USED
51
ATT
CLAMP
52
53
GCL
V5
COMP IN
REC
54
Y AGC
V3/V4
Y/C IN
PB
C1
AGC DET
S.SEP
56
Y
Y
WF25 Y1 Y3
IC501 Y2
ATT ATT
( Y/C SWITCH )
1 2 3 4 5 6
WF11
Y
WF12
C
2-47 2-48
Q7104
BUF
WF18
WF19
NOT NOT
USED USED
WF17
36 34 33 32 31 30 29
EE/PB SP/EP(LP)
VHS
CLAMP
S-VHS
CONV
REC 28
PB
REC PB
CONV
REC
27
PB*CONV N/S-LPF
CLAMP
EQ
PB REC
Y
25
NOT
CLAMP
USED
CONV
CONV 24
NOT
VCA
USED
REC
PB*CONV
23
FILTER FILTER
21
N.C.
ATT CLAMP
REC PB
TRAP
WF16
20
19
V FBC V MUTE
BB
PB*D15
C.K. D7&D8 18
NOT
BB BIAS
BB USED
V4
17
BB C
C MUTE
V3
C3 D16
WF15
C2
Y FBC
15
Y
Y MUTE
S1/S2 DET
WF14
ATT ATT ATT
WF13
7 8 9 10 11 12 14
NOT
USED
IC7101
Q7101
14
5
BUF
11
LINE_OUT
a
DVD_V_IN
b
Y TO SUB
Y
c
MAIN ALC DET
d
PB COLOR
C
e
Fsc
f
REC COLOR
C
g
V FROM AV
Y
h
Y TO AV
Y
i
FRONT V IN
j
V FROM OSD
k
I2C DATA A/V
l
I2C CLK A/V
m
REAR_V_IN
n
TO
SYSCON
CHARA DATA
V TO OSD
P.MUTE(L)
I2C CLK A/V
I2C DATA A/V
WIDE DET
D.FF D.FF
V.REF V.REF