Video Block Diagram - JVC HR-S5950EU Service Manual

4.22

VIDEO BLOCK DIAGRAM

8 7 S-P CONVERTER
VR1601
IC1607 Q1607-
R-Y LEVEL IC1606 IC1605
ADJ Q1609
1 11 16 9
R-Y R-Y R-Y
AMP R-Y
CVBS
14 10
14 12
B-Y B-Y
C OUT B-Y
Q1614 3
MULTI
B-Y AMP
5 COLOR
DL
BUF DECODER
PAL
Q1610-
ENCODER VR1602
Q1612
B-Y LEVEL
ADJ
24
C
IC1601-
IC1604
Q1601
SYNC
BUF
SEP.
Q1605
EQ BUF
0 6 TERMINAL(S-SUB)
4
+
42 41 40
CR
CLK
ADJ
IIC LOGIC
PRE LPF
43
CLAMP
3
PRE LPF ATT
DIGI/PB
EXT PB Y
45
PRE LPF
47
C C
PRE LPF
48 EXT PB C
C
EXT PB C
49
C566
50 C
ONLY USED
FOR MS MODEL
51
ATT
CLAMP
52
2
53
GCL
COMP IN
REC
54
Y AGC
V3/V4
Y/C IN
PB
AGC DET
S.SEP
56
Y
Y
ATT
IC501
( Y/C SWITCH )
1 2 3
NOT NOT NOT
USED USED USED
1
C
Y
Y
Note : For the waveforms in this block diagram, refer to page 4-33.
A
ONLY USED FOR
MS MODEL
WF1
16
WF2
CN1601
TO_PS_C
9
FROM_PS_C
7
TO_PS_Y
Y
5
FROM_PS_Y
3
WF3
Y
WF4
CN513
3 5 7 9
C
C
ONLY USED
FOR C564
MS MODEL
Y
Y
C
39 38 36 34 33 32 31 30 29
EE/PB SP/EP(LP)
VHS
DATA
CLAMP
S-VHS
CONV
PB DIGI/PB REC 28
PB
PB
REC REC CONV
DIGI
REC
27
PB*CONV N/S-LPF
CLAMP
EQ
PB REC
Y
DIGI
25
CLAMP
CONV
CONV 24
VCA
REC
PB*CONV
23
FILTER FILTER
PB REC
21
N.C.
ATT CLAMP
REC PB
TRAP
20
19
V FBC V MUTE
BB
PB*D15
C.K.
D7&D8 18
NOT
BB BIAS
BB
USED
V5
V4
17
BB
C MUTE
V3
C1 C3 D16
C2
Y FBC
15
Y MUTE
S1/S2 DET
Y1 Y3
Y2
ATT ATT ATT ATT
5 6 7 8 9 10 11 12 14
NOT NOT NOT NOT NOT NOT
USED USED USED USED USED USED
B C
Y
IC502
( SWITCH )
S-VHS & SVHS-ET
ONLY USED
FOR
MS MODEL
C562
1
18
EQ
SP
2 17
SP
EE(L)
EQ
16
REC PB
5 NON LINEAR 12
PROCESSOR
PB
6
11
EQ
SP
REC
10
SP
EQ
Q584
DET
C
Y
IC581
(SWITCH) Q585
1 BUF BUF FILTER
6 Q586
Y 2
4
BUF BUF
D 4-37 4-38 E
Q582
BUF FILTER
BUF Q583
C
Q581
AMP FILTER
F
CN511
EE(L)
1 1
I2C_DATA
2 2
I2C_CLK
3 3
Fsc
4 4
Y Y_TO_SUB
14 5
MAIN_ALC_DET
13 6
SECAM_PB_COLOR
12
7
PB_COLOR
11 8
V_TO_VPS/PDC
Y
8 9
V_FROM_AV
Y
24 10
REC_COLOR
C
25 11
Y Y_TO_AV
22 12
V_FROM_OSD
30 13
CHARA_DATA
21 14
V_TO_OSD
20 15
C_OUT
16
28
Y_OUT
26 17
FRONT_V_IN
17 18
AV2_C_IN
16 19
AV2_Y/V_IN
15 20
G H