JVC hr-xvs30ek - VIDEO BLOCK DIAGRAM(2)

C
Y
Y
VHS(H)
SYNC_OUT
TO SUB
k
SIGNAL PROCESSOR
)
MAIN (VIDEO/N. AUDIO)03
VIDEO_ENV
MESECAM_DET
TO
SYSCON
TO
SYSCON
c
d
b
a
e
f
g
TO_SUB_EMPH
PB COLOR
IC1
(
VIDEO & AUDIO
Fsc
REC COLOR
VFROMAV
YTOAV
FRONT_V_IN
h
i
j
o
l
m
n
I2C_DATA_AV
I2C_CLK_AV
FROM_SUB_EMPH
TU_VIDEO
IF_SEL_YV_IN
V.PULSE
SB_GAIN
SYSCON
TO
Fsc
D. FF
TO
FMA/DEMOD
TO
SYSCON
SP CH2
8
7
U.DRUM
CN1
SP CH1
5
6
3
4
1
2
5
6
3
4
1
2
LP/EP_CH2
LP/EP_CH1
8
7
5
6
3
4
1
2
VIDEO
HEAD
C
Y
FILTER
SW11
MAIN EMPHASIS
CARRIER OFFSET
W.C /D. C
-10dB
FM MOD
MAIN
FO/DEV ADJ
DE EMPHASIS
REC
PB AGC+APL
REC FBC+ALC
DET
FM AGC
629
TRAP
SUB LPF
DEMO
DLIM
ENVDET
AT T
-10dB
AT T
-10dB
AT T
-6dB
AT T
-4dB
AT T
VIDEO AGC
GCL
GCL
GCL
GCL
GCL
HPF
SP2
SP2
SP1
SP1
SP2
SP2
SP1
SP1
VC
DET DET
X-TAL
VCO/OSC
2MLPF
HPF
REC
MUTE
+
LPF
4PHASE
CONV1
MAIN
CONV2
MAIN
CLPF1
CLPF2
REC
KILLER
PB
REC
2fsc
DISCRI
SW
DOWN
CONV
APC
APC
AFC
LCVCO
ACC
DET
APC
CHROMA
ACC DET
CR DET
TA NK
MESECAM
DET
VCA
L-DET
4.43PAL
CONT
DELAY
ACC
+
CLOCK DRIVER
MODE
CONTROL
C-CCD
CCD
LPF
PILOT
ADD
PILOT
ERASE
B.D
CONV
NP
C.K
BPF
ACC
SW
+
C.K
CHROMA
ACC
MIX LEVEL
ADJUST
B.E
3.3k ADD
CH1
HiFi TRAP
REC TRAP
FH HPF
CTL TRAP
P-EQ
SW13
DL
G-EQ
DO DET
LPF
S-DET
ET LPF
EMPH
N.L.
DEH
LPF
YNR
SEP
SYNC
V-A MP
C-SQUELCH
6dBAMP
PG
PG
AGC DET
LCH
SQUE
CLEAR
SYNC
VIDEO ALC
/ FBC
PC
HP-NC
TRAP-NC
CCD
CONT
MPAL CONV.
C
DELAY
SW10
Y- L P F
DELAY
SECAM
+SSEQ
N.L.
DE-EMPH
SQPB EQ
P
R
SW9
P
R
SW8
INT
EXT
SW12
SQPB
SQPB
CH2
P
R
SW16
SW25
SD
SD
SW38
P
R
SW28
P
R
SW27
SW26
P
R*L-SECAM
EXT
INT
0.5Vp-p
R*SDECK
SW22
R*SDECK
35PinGCL
R*SDECK
R*SDECK
SW21
SW24
SW23
DO
DO/REC
R*SDECK
R*SVHS
SW19
SQPB
SQPB
SW20
P
R
SW17
SVHS+L-SECAM
SVHS+L-SECAM
SW15
P
R
SW14
SW52
P
R
SW18
R
AT P
SW51
RP
SW31
PR
SW32
P
R
SW33
RP
SW30
SW29
P
R
RP
SW35
L-SECAM
䌃䋭䌁䌃䌃䋺䌏䌎
CCD BLOCK
SW36
L-SECAM
SW34
R
P
SW37
SW39
L-SECAM
L-SECAM
SW40
EXT
INT
SQPB
TRAP
TRAP
䌒䌅䌃
䌒䌅䌃
:ON
:OFF
SW41
SP
SP
SW44
SW45
SW46
SW47
SW48
SW49
SW42
CH2
CH1
CH2
CH1
SW43
B-Y INVERT
COMP
EXT
CCD-
D.FF
C-ACC:THROUGH
57 PIN
KINSEKI
MSM7470 Series
CH3
CH4
81
82
83
85
86
87
89
90
91
8
9
10
14
25
24
12
15
16
1719
20
21
23
26
27
28
29
42
31
33
34
38
35
36
37
40
46
45
43
48
53 55 57
5859
Y- C C D
49
51
7665 67 6963
FILTER
70
72
71
73
74
77 78
80
TP111
D. FF
SW
Q1
C
C
C
C
C
WF7
WF1
WF2
WF3
WF4
WF5
x1
L7
WF6
C.SYNC
CLK
DATA
2Fsc
VHS_V_OUT
r
TU_VIDEO
s
REAR2_C_IN
v
VHS_C_OUT
w
VHS_Y_OUT
x
DAC1
y
DAC0
z
DAC2
aa
DAC3
ab
7
6
CN913
1
CN915
3
4
8
9
10
Y
J901
AV1 IN/OUT
19
V. O UT
Y/V.IN
20
15
V. G ND
18
C/R
11
7
BG
J902
AV2 IN/DECODER
19
V. O UT
Y/V.IN
20
15
V. G ND
18
C/R
11
7
BG
I2C_CLK
p
I2C_DATA
q
4
Y
BUF
Q913
TERMINAL (I/O)06
NOT
USED
5
11
13
9
RF_V_OUT
IF_SEL_YV_IN
1
3
4578
9
12
14
13
15
17
55
56
53
52
51
40 39
37
36
35
33
31
29
28
26
22
21
19
24
NOT
USED
25
IC903
4
6
3
7
2
8
IC902
4
6
3
7
2
8
BUF
Q912
CLK
DATA
IC901
BUF
t
u
TO
ON SCREEN
Y
J7005
DVD
COMPONENT
OUT
PB
PR
J7002
VHS
LINE OUT
Y
Y
Y
Y
C
Cb
Cr
Y
C
Y
C
C
Y
Y
NOT
USED
NOT
USED
C
Y
Cb
Y
C
Y
Cb
Cb
Y
Cr
Cb
Y
Cr
C
Y
Y
Y
Y
C
Y
Y
Y
C
Y
Y
Y
1
2
3
4
5
6
5
6
Cr
C
Y
C
NOT
USED
Y
Y
Y
C
C
ONLY USED FOR
S-VHS MODEL
WF1 IC1-17 IC1-24 IC1-26 IC1-29 IC1-43
TP111
D.FF
REC 0.72Vp-p
0.2V/20µsec/DIV
REC 0.5Vp-p
0.2V/20µsec/DIV
REC 0.38Vp-p
0.2V/20µsec/DIV
PB 1.7Vp-p
0.5V/20µsec/DIV
REC 0.66Vp-p
PB 0.6Vp-p
0.2V/20µsec/DIV
REC/PB 0.4Vp-p
0.2V/5msec/DIV
WF2 WF3 WF4 WF5 WF6
REC 1.6Vp-p
0.5V/20µsec/DIV
WF7
IC1-86
TUNER
TO
TU_VIDEO
S_DET
SYSCON
TO
VIDEO BLOCK DIAGRAM
(
2
)
LPF
LPF
CLAMP/
BIAS
LPF
CLAMP
CLAMP
BG
CLAMP
CLAMP
CLAMP
GCL
GCL
LPF
LPF
-6
-6
BUF
BUF
BUF
BUF
BUF
BUF
BUF
BUF
BUF
BUF
BUF
-6
2-45 2-46
www.freeservicemanuals.info
3/7/2017
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