DVR-3100-S
16
1
2
4
1
2
4
C
D
F
A
B
E
3.1.2 TUJB ASSY BLOCK DIAGRAM
U3001
V/U Tuner Module
VXF 1023-
SCL
SDA
SCL
SDA
AFT
AGC
<u-com>
TUON<u-com>
+32V
Reg.
+6V
SW.
+5V
Ripple Filter
IC3301
LA73030
Video
Selector
IC3903
TDA9818TS
VIF/SIF
IC
EVOLCLK
EVOLDATA
EVOLCE
LC75342M
IC2801
Audio Selector
with
Electric A.T.T
Audio Input Circuit
Output Circuit
Video Input Circuit
SDET2 <u-com>
IC3903 Pin16
SDET3 <u-com>
LAMUTE
RAMUTE
<MAIN>
(Discrete)
R
L
Comp
C
Y
V
C
Y
G
B
R
L
R
TU_L
TU_CVBS
TU_R
Muting
OUT2
JA1301
JA1302
IN3
(Rear)
IN2
(Front)
JA2832
V
Y
Y
IF
AGC
AGC
<u-com>
C
C
V
Y
C
S
S
L
R
L
R
L
R
JA3551
IC3501
LA73054
Video Driver
with LPF
<u-com>
SELV1
SELV2
SELV3
YVSEL
SWSTBY
<u-com>
R
L
V/Y
C
SYNC
LPF
Trap
PIF
SAW
SIF
SAW
LPF
Sync-Sepa
13.5MHz
LPF
13.5MHz
LPF
C
V/Y
24
16
12
11
1,2
23,24
26
28
2
5
28
31
33
6
8
26
TUJB ASSY (VWV1962)
B
FRJB ASSY (VWV1965)
C
CN1301
CN3002
8
8
6
10
6
10
2
14
12
4
JA3081
Optical
OUT
12
4
SCRB ASSY
(1/2)
(VWV1958)
I
1/2
CN203
(1/2)
CN210(1/2)
29
21
5
27
7
15
31
9
Stereo
Decoder
MSP3417G
IC4001
<u-com>
SYNCAFT<u-com>
SYNCMAIN
SYNC<u-com>
SIF <IC3903:VIF/SIF IC>
SIF <IC4001:Pin2>
Q3344
Q3342
Q3362
Comparator
Q3371
Q4001-Q4004
AFC
AGC
15kHz LPF
6.5MHz
LPF
13.5MHz
Trap
6.5MHz
LPF
13.5MHz
LPF
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