4-73
4-74
VIDEO BLOCK DIAGRAM (VHS)
H
G
F
E
D
C
B
A
4
5
3
2
1
4.37
YVIN
FSCIN
IC1401
DIGITAL/2M
IC501
(Y/C SWITCH)
EQ
12
10
EQ
EQ
EQ
11
16
17
NON LINEAR
PROCESSOR
SP
SP
PB
REC
18
IC502
(S-VHS & SVHS-ET SWITCH)
1
PB
REC
6
5
SP
SP
2
EE(L)
19
28
CLAMP
CLAMP
CLAMP
ATT
ATT
ATT
ATT
ATT
CLAMP
CLAMP
AT
T
ATT
GCL
ATT
Y/C IN
COMP IN
27
25
17
15
REC
PB
PRE LPF
PRE LPF
PRE LPF
PRE LPF
EXT PB C
EXT PB C
REC
PB
AGC DET
AGC
S.SEP
V3/V4
V5
S1/S2 DET
C1
C2
C3
Y2
Y1
Y3
V3
V4
BB
BB
BB
BB
V FBC
Y FBC
C MUTE
Y MUTE
D16
V MUTE
TRAP
REC
PB
N/S-LPF
REC
PB
EE/PB
SP/EP(LP)
VHS
S-VHS
CR
ADJ
EXT
PB
Y
EXT PB Y
DIGI
DIGI/PB
REC
PB
IIC LOGIC
CLK
DATA
DIGI
DIGI/PB
REC
PB*CONV
CONV
CONV
CLAMP
REC
PB
EQ
REC
PB
ATT
PB*CONV
CONV
CONV
REC
VCA
REC
PB
N.C.
C.K.
PB*D15
D7&D8
BIAS
24
23
21
20
18
43
45
47
48
49
50
51
52
53
54
56
14
12
11
10
9
7
6
8
5
3
2
1
42
41
40
39
38
36
34
33
32
30
29
31
USED
NOT
USED
NOT
USED
NOT
USED
NOT
FILTER
FILTER
+
1
5
S-SUB
4
BPF
BUF
com/CNR
PS
REC
PB
24
29
31
CIN
REC
PB
COMB
3L
PB
BPF
Q1408
Q1418,Q1420
BUF
BUF
Q1417
LPF
19
17
BUF
Q1406
(Y/C SEP & MIX )
REC
0
5
COUT
Q1402
3D
YOUT
Y COMB
SDATA
SCLK
11
12
21
22
20
18
17
23
25
26
27
29
30
16
14
13
12
11
10
9
3
2
1
2
4
6
8
10
12
14
CN512
4
14
15
13
12
11
16
17
18
I2C DATA
A/V
EE(L)
I2C CLK A/V
Fsc
C TO DIGI
Y/V TO DIGI
Y FROM DIGI
C FROM DIGI
19
20
21
PB COLOR
V.PULSE
MAIN ALC DET
25
26
24
23
22
27
28
29
P.MUTE(L)
Y TO SUB
FRONT Y IN
FRONT C IN
FRONT V IN
REAR2 V IN
V TO OSD
CHARA DATA
30
31
32
Y TO AV
V FROM AV
REC COLOR
CN511
33
34
35
36
37
V FROM OSD
C OUT
Y OUT
REAR2 C IN
REAR2 Y IN
38
39
REAR1 C IN
REAR1 Y IN
1
3
5
6
7
9
12
14
15
11
4
5
3
2
1
6
7
8
V.REF
D.FF
I2C DATA
A/V
I2C CLK A/V
C FROM DIGI
Y FROM DIGI
EE(L)
Y/V TO DIGI
9
10
C TO DIGI
Fsc
CN1401
USED
NOT
7
8
DFFI
VR
Q1404
Q1414
SW
Y
C
C
Y
C
C
C
Y
Y
C
Y
Y
Y
L
Y
C
C
Y
Y
C
Y
Y
Y
Y
C
C
C
Y
C
Y
C
C
Y
Y
C
Y
Y
C
Y
C
Y
Y
C
C
Y
Y
C
WF1
WF2
WF3
WF4
WF8
WF10
WF7
WF5
WF9
WF6
WF11
WF12
WF13
WF14
Y
Y
Note : For the waveforms in this block diagram, refer to page 4-63.
