Tujb Assy Block Diagram - Pioneer DVR-310-S Service Manual

1

3.1.2 TUJB ASSY BLOCK DIAGRAM

A
U3001
V/U Tuner FrontEnd
VXF1022-
SCL
SDA
<u-com>
B
JA2832
IN1
(Rear)
C
IN3
(Rear)
JA1301
JA1302
IN2
D (Front)
JA3081
Optical
OUT
JA3582
Component
E
OUT
JA3551
OUT1
OUT2
F
16
1
2
+32V +5V +6V
TUON<u-com>
Reg. Ripple Filter SW.
Audio
<IC3105>
AFT
AGC
S
SDET1 <u-com>
C
Y
V
L
R
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
Y
Cb
Cr
Y
C
V
Y
C
Muting
Comp
(Discrete)
L
R
2
3
B
IC3301
LA73030
Video
Selector
YVSEL
SELV1
SWSTBY
SELV2
SELV3
IC2801
Audio Selector
with
Electric A.T.T
LC75342M
EVOLCLK
EVOLDATA
EVOLCE
Output Circuit
25
23
21
28
31
33
LAMUTE
RAMUTE
<MAIN>
DVR-310-S
3
4
TUMJ ASSY (VWV1960)
Video Input Circuit
Q3344
24 V/Y
LPF
Q3342
26
C
LPF
Q3362
Sync-Sepa
28 SYNC
Q3301
SYNCMAIN
Comparator
<u-com>
Audio <U3001:U/V Tuner>
IC3105
MPX Audio
Decoder
CXA2064M
ATT Wideband Spectral
Q3101
15kHz LPF
5 L
26 R
Audio Input Circuit
<u-com>
S1
IC3501
LA73054
16
Video Driver
with LPF
14
11
6
8
525P
4
V/Y
C
SYNCAFT<u-com>
SYNC<u-com>
STID
<u-com>
SUID
MUTE
LPF
LPF
LPF