Video Block Diagram - JVC HR-S9850EU Service Manual

4.28

VIDEO BLOCK DIAGRAM

8 7 P/S CONVERTER
TP3502
R-Y
IC3505
29 1
SYNC IN R-Y
S-P( )/P-S H ( L)
18 3
C OUT B-Y
2 16
SECAM
3
ENCODER
IC3508
1
VR3505
IC3506 R-Y LEVEL Q3541-
ADJ Q3543
1
R-Y AMP
14
C OUT
3
B-Y AMP
PAL
Q3544-
VR3506
ENCODER
Q3546 TP3501
B-Y LEVEL
ADJ
1 5 S-SUB
43
45
47
C
48
C
49
50
C
51
CLAMP
52
53
54
Y
56
Y
IC501
( Y/C SWITCH )
Note : For the waveforms in this block diagram, refer to page 4-43.
Only used for HR-S9850MS
<ANTI-BELL|
FL3506 Q3525
IC3503 IC3502
BUF
IC3515
3
16 1
11
R-Y R-Y R-Y
15 7
C IN
12 14 3 1
B-Y B-Y B-Y
2
WF4
MUL TI
( (L)
COLOR S-P H) /P-S
DL
DECODER
TP3504
CN3502
CONV'D COLOR
TO_PS_C
7
FROM_PS_C
5
TO_PS_Y
EQ EQ EQ B UF 3
FROM_PS_Y
FL3502 FL3501 Q3504
FL3503
1
Q3512-Q3515 Q3511 Q3505-Q3507
WF2
IC3509 5 11
BUF Q3520
3 1
14
IC3508 WF1
FL3505,Q3540
2
Q3508-Q3510
12
7 S-P (H) /P-S (L) SW5V
LPF
B-Y
C
C
C
Y
C
Y
Y
+
42 41 40 39 38 36 34 33 32 31 30
EE/PB SP/EP(LP)
CR
VHS
ADJ CLK DATA CLAMP
S-VHS
IIC LOGIC
PRE LPF
CONV
PB DIGI/PB
PB
CLAMP
REC
REC CONV
PRE LPF ATT DIGI REC
PB*CONV N/S-LPF
DIGI/PB
EQ
EXT PB Y PB REC
Y
PRE LPF DIGI
CONV
CONV
C
PRE LPF
VCA
REC
PB*CONV
EXT PB C
PB REC
EXT PB C
N.C.
ATT
REC PB
TRAP
ATT
V FBC V MUTE
BB
PB*D15
C.K.
GCL BB
BB
V5
COMP IN V4
REC
AGC BB
C MUTE
V3/V4
Y/C IN
V3
PB
C1 C3 D16
C2
AGC DET Y FBC
S.SEP
Y MUTE
S1/S2 DET
Y
Y1 Y3
Y2
ATT ATT ATT ATT
1 2 3 4 5 6 7 8 9 10 11 12
NOT NOT NOT
NOT
USED USED USED USED
( Y/C SEP & MIX )
IC1401
DFFI
VR
SDATA
SCLK
REC
COUT
PS com/CNR
PB
REC
WF3 3L COMB YOUT
Y COMB
PB
REC PB
VREF
29
31 24
LPF
Q1417
BPF BUF
3 5 7 9
Y
IC502
29
( SWITCH )
S-VHS & SVHS-ET
1
REC 28 18
SP
PB
27
2 17
CLAMP SP
EE(L)
16
REC PB
25
CLAMP
5 12
NON LINEAR
PROCESSOR
24
PB
6
11
23
FILTER FILTER SP
REC
10
SP
21
CLAMP
20
19
D7&D8 18
NOT
BIAS
USED
17
C
15
Y
ATT
14
4-49 4-50
0 5 3D/TBC(2M)
7
8
11
12
17
BPF BUF
Q1402
Q1404
ES
Q1414
19 CN1401
LPF BUF
15
Q1406
14
I2C_DATA
12
I2C_CLK
21 VR1401
11
D/A LEVEL ADJ
C_FROM_DIGI
C
9
Y_FROM_DIGI
Y
7
6
Q1418 V/Y_TO_DIGI
Y
BUF 5
C C_TO_DIGI
3
1
WF1 WF3
WF2
CN511
1
2
3
4
C
9
Y
10
Y
11
C
12
C
13
C
15
16
Y
17
18
20
21
22
23
25
26
Y
27
Y
29
C
EQ 30
WF8
WF9
EQ
WF7
WF10
EQ
EQ
WF11
WF12
CN512
2
C
4
Y
6
8
10
C
12
Y
14
WF14 WF13
D.FF
1
V.REF
2
3
4
5
6
EE(L)
7
8
9
Fsc
10
WF5
WF4 WF6
EE(L)
11
I2C_DATA_A/V
12
I2C_CLK_A/V
13
Fsc
14
C_TO_DIGI
15
Y/V_TO_DIGI
16
Y_FROM_DIGI
17
C_FROM_DIGI
18
PB_COLOR
19
SECAM_PB_COLOR
20
MAIN_ALC_DET
21
Y_TO_SUB
22
P.MUTE(L)
23
FRONT_Y_IN
24
FRONT_C_IN
25
FRONT_V_IN
26
REAR2_V_IN
27
V_TO_OSD
28
CHARA_DATA
29
Y_TO_AV
30
V_FROM_AV
31
REC_COLOR
32
V_FROM_OSD
33
C_OUT
34
Y_OUT
35
REAR2_C_IN
36
REAR2_Y_IN
37
REAR1_C_IN
38
REAR1_Y_IN
39