JVC HR-S9850EK, Service Manual

Page: 69 / 90

4-51 4-52
MAIN (VIDEO,CONNECTION)
AV1_YCIN(H)
CLPF
DO
Conv2
Main
BPF
LEVEL
Det1
LEVEL
Det2
Q905-Q907
AMP
3 6
JACK
V_FROM_OSD
REAR2_C_IN
REAR2_Y_IN
REAR1_C_IN
REAR1_Y_IN
39
37
38
C_OUT
Y_OUT
34
35
36
33
J7194
FRONT_S_IN
C
Y
FRONT
VIDEO
J7191
IN
1
2
CN911
14
10
12
4
6
8
2
CN901
2
4
CN7191
7
FRONT_Y_IN
FRONT_C_IN
CN913
3
1
CN903
1
6
BU
F
3
13
_YCIN(H)
14
Q911,Q912
SW
Q908
BU
F
17
USED
AV1
NOT 15
BU
F
16
BU
F
NOT
USED
20
18
BU
F
21
BU
F
CTL
I2C
B
U
S
CLK
DATA
EXP2
EXP1
12
CLAMP
CLAMP
BU
F 6dB&
7
11
9
5
BUF
Q909
23
22
BU
F
24
9 11
0 3
CLAMP
BU
F
6dB&
IC901
1
I2C_DATA_A/V
I2C_CLK_A/V
Y/V_TO_DIGI
Y_FROM_DIGI
C_FROM_DIGI
PB_COLOR
MAIN_ALC_DET
FRONT_Y_IN
FRONT_C_IN
FRONT_V_IN
REAR2_V_IN
CHARA_DATA
V_FROM_AV
REC_COLOR
I2C_DATA_A/V
I2C_CLK_A/V
C_FROM_DIGI
Y_FROM_DIGI
Y/V_TO_DIGI
32
V_TO_OSD
Y_TO_AV
30
31
27
28
29
Y_TO_SUB
P.MUTE(L)
24
25
26
23
22
19
21
SECAM_PB_COLOR
20
17
18
Fsc
C_TO_DIGI
14
15
16
13
12
C_TO_DIGI
Fsc
8
9
10
6
3
4
5
CN902
FRONT_VIDEO
30
5
27
29
23
25
26
20
21
22
18
17
13
15
16
12
11
CN502
TU_VIDEO
RF_VIDEO
TO
TUNER
4
10
9
3
2
5
1
3
7
12
9
11
ALC PB
22
20
18
16
46
45
NOT
USED
NOT
USED
DATA
I2C
LOGIC
CLK
10 11
FILTER
LPF
BDL
Clamp
APT
ATT
)
)
)
(-10dB
(-10dB
ATT
(-10dB
ATT
) (-10dB
ATT
R
P
Video
AGC
YNR
BDL
Y
CTL N.C.
D.E.
25
21
Fsc
Sync.Sep.
L-SECAM
Clamp
ADD
ADJ
LEVEL
MIX
REC
AGC Det
L-SECAM
C.K
P
PILOT
WHITE
LIMITER
SYNC
CLEAR
SQUELCH
C.SQUELCH
AMP 6dB 6dB AMP
INT
EXT
B.E
B.D
P N
I2C_CLK_A/V
I2C_DATA_A/V
EE(L)
P.MUTE(L)
V.PLUSE
V.REF
CN501
TO
SYSCON
Q21
26 29 27
C.K
LPF
BDL
30
BUF
SYSCON
I2C_CLK2
S.CASS(H)
CS2
ON SCREEN
DISPLAY
LN21
12
CVOUT
CV_IN
MUTE
SYNC_DET
AV1 IN/OUT
19
V.OUT
Y/V.IN
20
15
V.GND
18
C/R
11 7
B G
J901
19
27
5
21
3
8
AV2 IN/DECODER
19
V.OUT
Y/V.IN
20
15
V.GND
18
C/R
1
CN915
CN905
11 7
B G
J902
(
CN914
CN904
2
Q207
BUF
3 5
2 4
TERMINAL
6 0
SCLK
XTAL_
SDATA
2
IN
11
CS1
CHABLK
10
9
4
BUF
Q903
IC201
)
2Fsc
Y
3
Q904
BUF
4
2
C
1
OSD_CS
REAR
S-OUT
J903
I2C_DATA2
SYNC_DET(H)
P.MUTE(L)
NORM/MESEC/S
R P
Adj
MOD
YCA
Clamp
6 12 13
R P
R
P
14
P R
FBC/ALC
DO
/REC
SQPB
EQ
SQPB
SQPB
ET
R
Y LPF
P
ET LPF
ET
De.Emph
Main
DeMOD
LPF Sub
7
SW Q17
Main Emph
Carrier
.C/D.C W
Offset
S-DET
fo/Dev
FM
REC
Filter
TRAP
HPF
Det
Killer
Emph
N.L.
P
R
R
De.Emph
N.L.
R
P
R P
Conv1
Main
Det
DO
DLIM
EQ
G
TRAP
P
R
fH
CTL
R P
CLPF
Gen.
Pulse
Delay
APC
SW
ACC
Color
ID Det.
L-SECAM
FM
L-SECAM
COMP
SQPB
SQPB
DL
SQPB
. SEP
P
EQ
LPF
ACC
HPF
R
P
MUTE
TRAP
629
DET
AGC
R
P
2M LPF
REC
1/2
Phase
Gen.
4Phase
DOWN
SW.
Conv.
APC
REC
APC
PB
AFC
REC
1/2
2FL VCO
Discri
PB/REC
SP1
7
VIDEO
SIGNAL
8
IC1
(
CH1
LP1
+
-
CH2
CH1
+
-
LP2
SP1
+
-
LP2
LP1
110
109
108
106
PROCESSOR)
AUDIO &
VHS(H)
HARD_SEL
D.FF
SECAM(H)
SECAM_DET
VIDEO_ENV
2
1
3
4
5
6
SP
101
CH2
-
SP2
+
EP
(LP)
DET
DET
SP2
105
Comp
104
DET ENV
HPF
ME
DET
SECAM
SW2
SW1
Head
Head
D.FF
TANC
120
CTL
111
112
CN1
8
Q10
Q24
X1
VCA
BDL
C
2fsc VCO
LOCK fH CTL
2Fsc
Det.
P
R
CR
2fsc
LPF
44 34
VCO/OSC
X-tal
NOT
USED
42 40
TP111
D.FF
BUF
BUF
IN fsc
55 38
CH2
CH1
TO
EP(LP)
EP(LP)
SP CH1
U.DRUM
SP
HEAD
CH2
VIDEO
7
2
1
3
4
5
6
8
7
2
1
3
4
5
6
8
C
C
Y
C
Y
Y
C
Y
Y
C
Y
Y
C
Y
Y
C
Y
C
Y
C
Y
C
Y
C
C
C
Y
Y
C
C
Y
C
Y
C
Y
C
Y
Y
C
Y
C
Y
WF1
WF2
WF5
WF6
WF7
WF8
WF9
WF10
WF11
WF12
Note : For the waveforms in this block diagram, refer to page 4-43.
V_TO_OSD2
C
PB_COLOR
VHS(H)
IC2
(SWITCH)
VHS(H)
7
5
NOT
USED
4
2
1
3
TP106
PB.FM
2 1
BUF
EQ
&
Q5
BUF
BUF
BUF
Q14
WF3
C WF4
26 11 2 13 14
15
17
27
REC
MUTE
VCA
X2
1/4
LIM
AGC
DET
SYNC
GATE
MUTE
PB
REC
PB
REC
PB
REC
SYNC
GEN
X2
1.1MHz
BPF
2.2MHz
BPF
VCA
PB
MUTE
4.3MHz
BPF
AGC
FILTER
AGC
AMP SECAM
DET
SYNC GATE
GEN
/V-SEP
IC301
8 8 SECAM
4.3MHz
BPF
SYNC
GATE
MODE
CTL
REC/PB
MUTE
R/P
16 1
CN302
CN301 CN302
CN301
_
_ _
4
2
1
4
2
6
3
1
5
Fsc
OSD2 TO V
COLOR PB
TO
SYSCON
REC_COLOR
PB_FM
C.SYNC
C
C
WF13
WF14
WF15
WF16
Q31
C
EE(L)
14
1
15
6
D.FF
V.REF
1
2
7
EE(L)
11
EE(L)
D.FF
REC_COLOR
PB_FM
C.SYNC
D.FF
C
CN912
8
6
7
3
4
2
D201
D205
1
2
LANC
J924
CN3402
1
3
2
6
5
7
3
2
JLIP
4
J923
S.DATA_FRSYS
S.DATA_TOSYS
SUB CS
S.CLK
SUB BUSY
SUB RESET
NAVIGATION
9 1
2
5
1, 7
43
RXD
6
3
IC3406
5
IC3405
3
6
1, 7
2
49
42
JLIP(L)
TXD
14
X-COMM
0X
Y-COMM
Z-COMM
2
5
11
9
1X
0Y
1Y
12
0Z
10
21
SD TOSYS
SD FRSYS
OSD SEL
SD OUT
SCLK OUT
45
52
MEM CS
IC3301
(NAVIGATION
PROCESSER)
22
51
MEM SIN
A
B
C
13
1
15
4
14
X-COMM
0X
Y-COMM
2
11
1X
0Y
1Y
12
A
B
13
10
1
15
CS
SO
2
1
IC3402
IC3401
(MULTIPLEXER/
DEMULTIPLEXER)
IC3403
(1M-BIT
FLASH MEMORY)
DEVICE SEL
SCLK IN
CS IN
RESET
SUB BUSY
S.CASS(H)
23
26
33
39
2
OSD CS
50
46
48
47
4
8
SI
SCK
D3407
(MULTIPLEXER/
DEMULTIPLEXER)
LANC_I/O
RXD
TXD
CSOSD_SUB
SD_TOOSD
SCLK_TOOSD
13 11
1 10 12 9 8
(VIDEO SWTCH)
(SECAM CHROMA
SIGNAL
PROCESSOR)
Only used for HR-S9850MS