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1
3.1.2 TUJB ASSY BLOCK DIAGRAM
QQ
3 7 63 1515 0
A
U3001
V/U Tuner Module
VXF 1023-
SCL
SDA
<u-com>
B
I
1/2
SCRB ASSY
(1/2)
(VWV1958)
C
JA2832
IN3
(Rear)
TE
L 13942296513
JA1301
JA1302
IN2
D
(Front)
JA3081
Optical
OUT
I
2/2
SCRB ASSY
(2/2)
(VWV1958)
E
www
JA3551
OUT2
F
16
1
http://www.xiaoyu163.com
2
+32V
+5V
+6V
TUON<u-com>
Reg.
Ripple Filter
SW.
11
AFT
PIF
AGC
SAW
IF
Trap
SIF
SAW
AGC
CN203
CN210(1/2)
(1/2)
Y
5
31
C
21
15
L
27
9
R
29
7
S
SDET3 <u-com>
C
Y
V
L
R
S
SDET2 <u-com>
12
4
C
2
14
Y
4
12
V
6
10
10
6
L
8
8
R
CN210(2/2)
C
7
29
Y
9
27
G
11
25
B
17
19
R
19
17
L
23
13
R
25
11
TU_CVBS
31
5
IC3903 Pin16
TU_L
33
3
TU_R
CN203(2/2)
35
1
Y
C
V
Y
x
ao
C
Muting
Comp
(Discrete)
.
i
L
R
2
http://www.xiaoyu163.com
3
AGC
AFC
IC3903
1,2
12
TDA9818TS
SIF <IC4001:Pin2>
VIF/SIF
23,24
16
IC
AGC
IC3301
<u-com>
LA73030
Video
Selector
YVSEL
SELV1
SWSTBY
SELV2
SELV3
Q Q
3
6 7
IC2801
Audio Selector
with
Electric A.T.T
LC75342M
28
31
33
u163
LAMUTE
y
RAMUTE
Output Circuit
<MAIN>
DVR-3100-S
3
4
2 9
9 4
8
B
TUJB ASSY (VWV1962)
Video Input Circuit
Q3344
24
V/Y
LPF
Q3342
26
C
LPF
Q3362
Sync-Sepa
28
SYNC
Q3371
Comparator
SIF <IC3903:VIF/SIF IC>
<u-com>
IC4001
2
Stereo
Decoder
MSP3417G
Q4001-Q4004
15kHz LPF
1 3
1 5
0 5
8
2 9
5
L
26
R
Audio Input Circuit
EVOLCLK
<u-com>
EVOLDATA
EVOLCE
IC3501
LA73054
Video Driver
with LPF
13.5MHz
Trap
6
6.5MHz
LPF
m
8
6.5MHz
LPF
co
.
4
2 8
9 9
V/Y
C
SYNCAFT<u-com>
SYNCMAIN
SYNC<u-com>
SCL
<u-com>
SDA
9 4
2 8
9 9
13.5MHz
LPF
13.5MHz
LPF
13.5MHz
LPF
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