JVC HR-J580EK, Service Manual

Page: 70 / 84

C
Y
C
C
C
C
C
C
C
C
C
C
C
C
C
C
Y
Y
Y
Y
Y
Y
Y
Y
WF1
WF2
WF3
WF4
WF5
WF6
WF7
WF8
WF9
WF10
WF11
VIDEO
FRONT IN
TU VIDEO
TUNER
RF VIDEO
I2C CLK
I2C DATA
SYSCON
V.PULSE
FILTER
MAIN (VIDEO , ON SCREEN, TERMINAL) 0 3
TP106
PB.FM
J7105
2
1
Q23,Q201
BUF
De.Emph
Main
APC
fH LOCK CTL
2fsc VCO
DLIM
DeMOD
Sub LPF
10
11
6 12 13 14
SW
CLPF
(-10dB)
ATT
22
25
REC
ALC
AGC Det
DO
R
Video
AGC
Clamp
YNR
R
P
CTL APT
D.E.
N.C.
PB
Clamp
R P
P P R
R P
De.Emph
FBC/ALC
P
R
N.L.
Emph
N.L.
Det
DO
Conv2
Main
ADJ
LEVEL
MIX
C.K
BPF
P
Sync.Sep.
Gen.
Pulse
R
P
R R P
TRAP
Conv1
Main
26
LEVEL
Det1
LPF
WHITE
SQUELCH
SYNC
CLEAR
LIMITER
C.SQUELCH
B.E
P N
C.K
30
AMP 6dB
27
6dB AMP
29
BDL
DATA
CLPF
R P
R P
Delay
VCA
I2C
Interface
SP2
-
SP2
+
SP1
+
+
-
-
+
SQPB
Carrier Offset
.C/D.C W
Main Emph
fo/Dev Adj
S-DET
REC
FM MOD
Filter
L-SECAM
VCO
1/2
HPF
SQPB
SQPB
EQ
G
DL
R
P
EQ
P
DET
FM AGC
COMP
.
LPF
SEP
Phase SW
1/2
ACC
TRAP
fH HPF
CTL
Gen.
4Phase
R
P
2M LPF
Conv
DOWN
.
. 2FL
SP
MUTE
TRAP
629
R
P
L-SECAM
YCA
REC
CH1
CH2
CH1
CH2
DET
DET
8
110
109
108
SP1
-
106
105
ENV DET
Discri
PB/REC
VCO/OSC
CR Det.
APC
REC
ACC Det
ID Det.
Color Killer
APC
PB
AFC
REC
2fsc
34 42
X-tal
40
Comp
DET
SECAM
ME
TANC
HPF
Head SW2
Head SW1
38
120
101
104
111
112
7
CLK
NOT
USED
R P
BDL
C
L-SECAM L-SECAM
1 2
LEVEL
Det2
LPF
ET
ET ET
EQ
SQPB
SQPB SQPB
DO
/REC
LPF
BDL
BDL
(-10dB)
ATT
(-10dB)
ATT
(-10dB)
ATT
20
18
16
21
ADD
PILOT
B.D
Clamp
46
45
IC1
1
2
3
8
4
5
6
7
CN1
1
2
3
1
2
3
8 8
4
5
6
7
4
5
6
7
SP CH2
SP CH1
HEAD
VIDEO
INT
EXT
VIDEO ENV
SYSCON
TP111
NOT
USED
NOT
USED
fsc IN
NOT
USED
FILTER
55
D.FF
TO
TO
ONLY USED FOR
HR-J780EU
Y
Y LPF
(VIDEO & AUDIO
SIGNAL PROCESSOR)
D.FF CTL
TO
D.FF
EP
(LP)
EP2
EP2
EP1
EP1
U.DRUM
NORM/MESEC/S
C.SYNC
19
21
11
10
XTAL IN
2
CVOUT
SDATA
CV IN
9
CS
FILTER
SCLK
27
5
I2C D ATA
I2C CLK
20
15 R/C
18
11 G
7 B
J7101
AV1(L-1) IN/OUT
19
V.OUT
V.IN
V.GND
20
15 R/C
18
11 G
7 B
J7102
AV2(L-2) IN/DECODER
19
V.OUT
V.IN
V.GND
31 30 32 33
28 3 1 29
IC201
IC7101
BUF
Q7106
I2C CLK2
I2C DATA2
44
LPF
OSD CS
S.CLK
S.DATA FRSYS
X1
4.16 VIDEO BLOCK DIA GRAM
EP(LP) CH2
EP(LP) CH1
Note : F or the w aveforms in this b lock diag ram, ref er to page 4-24.
NOT
USED
A
V
1
OUT
E1
V
E2
V
TUNER
A
V
2
OUT
SCL SD
A
OUT1
1
2
3
5
4
A B C D E F G H 4-29 4-30