JVC DR-MX1SEF Schematic Diagrams page 35

VIDEO BLOCK DIAGRAM (2)
C.SYNC
1
PB_FM
2
SECAM_REC_COLOR
C
3
Fsc
4
SECAM_PB_COLOR
C
5
V_TO_OSD
6
REAR_V_IN
Y
7
FRONT_V_IN
8
DUB_TO_VHS
9
TO
TUNER
TU_VIDEO2
TO
VHS SYSCON
C.SYNC
I2C_DATA_AV2
I2C_CLK_AV2
V.PLUSE
SB_GAIN
Q944
CN913
AV1_YV_IN[H]
SW
10 8
I2C_CLK1
11 4
I2C_DATA1
12
5
VHS_V_OUT
13 7
TU_VIDEO1
14 9
DUB_TO_VHS
15 11
IF_SEL_YV_IN
Y
16 13
CN915
REAR1_V_IN
Y
17
17
REAR2_V_IN Y
18 15
REAR1_C_IN
C
19 3
REAR2_C_IN
C
20 1
R/C
21 13
V/Y
22 5
G/Y
23 7
B/Pb
24 9
R/Pr
25 11
40 39 37 35 31 29 33
CLAMP CLAMP
-6
CLAMP/
BIAS
LPF LPF LPF
-6
LPF LPF
CLAMP
51
52
CLAMP BUF
53
CLAMP BUF
BUF
55
BUF
56
BUF
BUF
DATA
1 3 5 7 9 12
NOT
USED
53
CLOCK DRIVER
48 CCD-
CONT
51
49
Y-CCD
46
C-CCD
45
74
DATA
73
CLK
43 SW27
NOT P
USED
42 R*L-SECAM
C
EXT
INT
SW26
40
LPF
38
37 SW24
DO
GCL
35
GCL
DO/REC
NOT 34 R*SDECK
GCL
USED
R*SVHS
33
36
25
28
31
29
WF4
C
Y
Y
20
Y/V.IN
28
GCL
C
Q936
26
GCL BUF
24
22
-6
21
NOT
19
USED
17
15
NOT
USED
13
CLK
14
IC901
Cr C
Y
Cb
Q912
BUF
C
NOT
USED
x1
55 57 59 58 65 72 63 67 69 71
CCD
CONT
X-TAL
2fsc
VCO/OSC
DOWN
LCVCO
CONV
ACC ACC PB
MODE CHROMA KILLER
SW REC APC
ACC DET DET DISCRI
CONTROL
AFC
APC
SW
CCD BLOCK
KINSEKI
MSM7470 Serise
SW30
P
VCA
CLPF2 CLPF1
4PHASE
R
CHROMA
+ C.K
R P SW33
ACC
R P
CCD SW29
C-ACC:THROUGH
LPF
MAIN
+ MAIN
CONV2 CONV1
SW34
SW31
FH HPF
CTL TRAP
P R P
SW32
P R
SW51
R
C REC TRAP
L-DET DELAY HiFi TRAP
P
NP PILOT PILOT
C.K B.D
CONV ERASE ADD
P
C
BPF SW28
4.43PAL
MPAL CONV .
R
DELAY
ACC
SW17
6dBAMP
SW15
SVHS+L-SECAM SQPB
P
SECAM DL
N.L. DELAY Y-LPF
SQPB EQ
DE-EMPH +SSEQ
R SQPB
VIDEO AGC SQPB
SQPB P-EQ
SW12
SQPB SVHS+L-SECAM
SW19 SW16
SW20
C-SQUELCH P R
G-EQ FM AGC
GCL DO DET
SW23 DET
DLIM
SW14 ATT ATT ATT P
ATT
-10dB -10dB -10dB -4dB
N.L.
YNR DEH ET LPF DEMO R
EMPH
V--AMP P
SUB LPF
HP-NC PC
REC FBC+ALC
TRAP-NC SW18
SW52 PB AGC+APL
P
CLEAR R
SQUE VIDEO ALC
LCH SYNC / FBC
R
SW21 SW22 R*SDECK
SYNC R*SDECK ATP
35PinGCL
ATT
SEP PG AGC DET MAIN
-6dB
R*SDECK 0.5Vp-p R*SDECK DE EMPHASIS
PG
GCL
16 12
27 24 23 26 21 19 17 15
NOT NOT FILTER
WF1
USED
USED
Y
WF2
WF3
Y
0 6
TERMINAL (I/O)
J902 J901
AV1
AV2
18 20 18
IN/OUT
IN/DECODER
V.GND Y/V.IN V.GND
V.OUT C/R G B V.OUT C/R G B
19 15 11 7 19 15 11 7
C
Q913
BUF
Q941
BUF
IC902
2 8
3 7
4 6
2-65 2-66
TP106
PB.FM
0 3
MAIN (VIDEO/N.AUDIO)
NOT
USED
70 76 77 78
CR DET
B-Y INVERT
REC
APC
MESECAM
DET
SW36
L-SECAM
SW35
C-ACC:ON
MIX LEVEL
81
ADJUST
TANK
DET DET
L-SECAM
REC B.E
TRAP L-SECAM SW39 82
:ON LPF
83
L-SECAM
SW37
HPF ENVDET
REC
R
TRAP WF5
TP111
:OFF
+ REC
VC D.FF
MUTE
80
D.FF
SW40
SW41
EXT
SP
2MLPF
INT
SP
57 PIN
EXT
3.3k ADD
SW38
P
85
INT EXT
R
SD
SW25 SW8
SP2
HPF SP2
SW42 SW44
CH2 86
SD P
SW9
629
CH1
TRAP
SP1
R SW45
87
SP1
REC
FILTER
SW46
WF6
LPF S-DET
89
FM MOD
SP2
SP2
FO/DEV ADJ SW43 SW47
90
SW11 CH2
CH1
MAIN EMPHASIS
SP1 SW48
CARRIER OFFSET 91
SP1
W.C / DC
SW10
SW49
R
SW13
20
P
IC1
(VIDEO & AUDIO
14 10 9 8
L1
SIGNAL PROCESSOR)
Y
6
Y
J905
Cb DVD
4
P
B COMPONENT
3
OUT
Cr
2
P
R
1
TO
ON SCREEN
2Fsc
TO
VHS SYSCON
MESECAM_DET
VIDEO_ENV
D.FF
VIDEO
HEAD
CN1
6
SP CH2
5
SP CH1
4
3
LP/EP_CH2
2
LP/EP_CH1
1
TO
VHS SYSCON
S_DET