DVR-310-S
16
1
2
3
4
1
2
3
4
C
D
F
A
B
E
3.1.2 TUJB ASSY BLOCK DIAGRAM
U3001
V/U Tuner FrontEnd
VXF1022-
SCL
SDA
AFT
AGC
<u-com>
TUON<u-com>
+32V
Reg.
+6V
SW.
+5V
Ripple Filter
Audio
<IC3105>
IC3301
LA73030
Video
Selector
EVOLCLK
EVOLDATA
EVOLCE
LC75342M
IC2801
Audio Selector
with
Electric A.T.T
Audio Input Circuit
Output Circuit
Video Input Circuit
SDET2 <u-com>
SDET3 <u-com>
SDET1 <u-com>
LAMUTE
RAMUTE
<MAIN>
(Discrete)
R
L
Comp
C
Y
V
C
Y
Cb
Cr
Y
Muting
OUT2
OUT1
JA1301
JA1302
IN3
(Rear)
IN2
(Front)
IN1
(Rear)
JA2832
Y
V
V
C
Y
C
V
Y
C
S
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
LPF
Sync-Sepa
LPF
LPF
LPF
C
V/Y
24
26
28
16
14
5
11
25
23
21
28
31
33
6
8
26
TUMJ ASSY (VWV1960)
B
FRJB ASSY (VWV1964)
C
CN1301
CN3002
8
8
6
10
6
10
2
14
12
4
JA3582
JA3081
Component
OUT
Optical
OUT
12
4
Decoder
CXA2064M
Spectral
IC3105
MPX Audio
STID
<u-com>
SYNCAFT<u-com>
SYNCMAIN
SYNC<u-com>
Audio <U3001:U/V Tuner>
Q3344
Q3342
Q3362
Comparator
Q3301
Q3101
SUID
MUTE
S1
Wideband
ATT
15kHz LPF
525P