Block Diagram - Tuner/Audio Section - Sony STR-DE495 Service Manual

STR-DE495/DE595
Q Q
3 7 6 3 1 5 1 5 0
4-3. BLOCK DIAGRAM — TUNER/AUDIO SECTION —
TM301
FM/AM TUNER UNIT
TU+10V
+10V
L CH
FM 75Ω
COAXIAL
R CH R-CH
ANTENNA
STEREO
AM
TUNED
MUTE
CE
ST-DO/MC-DI
ST-DI/MC-DO
CLK
FM OUT
FM SIGNAL OUT
RDS DATA
RDS DATA
RDS INT
RDS INT
TU+3.3V
AEP,UK MODEL
T E
L 1 3 9 4 2 2 9 6 5 1 3
SYSTEM
CONTROL
IC1601 (1/4)
FM OUT
RDS SIGNAL
43
RDS DATA
RDS DATA 53
RDS INT
RDS CLOCK
52
STEREO 74
TUNED 73
TUNER
MUTE 75
SLATCH 78
DO 76
DATA 14
VOL IC/
TUNER
CLK 15
LATCH-VOL IC 16
WOOFER RELAY 68
w w w
J402 (1/2)
-1
CD
L
80
STEREO
(DE495)
IN
TUNED -2
CD/SACD
R R-CH
MUTE
(DE595)
CE
DO/DI J403
-1
DATA
L
78
CLK
IN
MD/TAPE
-2
R-CH
R
-3
L
76
AUDIO
DVD
IN -4
R-CH
R
J404 (1/2)
-1
74
L
AUDIO
VIDEO 2
IN
-2
R-CH
R
-5
72
L
AUDIO
VIDEO 1
70
IN -6
R-CH
68
R
DE595
65
J401
-1
11
L
FRONT
-2
R-CH
R
-3
10
MULTI L
SURROUND
CH IN
-4
R-CH
R
-6
SUB
WOOFER
-5
CENTER
L OUT
20
STEREO
C OUT 24
TUNED DIGITAL
C
SECTION
SW OUT 25
MUTE
(Page 17)
CE CLK
23
SL OUT
DO/DI DATA
28
27
29
x a o
y
. i
http://www.xiaoyu163.com
DIR
FUNCTION
SELECT
IC201
INL1
4
INL2
2
INL3
ATT
0/-6/-12/-18dB
INL4
R-CH
INL5
INL6
INL7
INL8
INL9
Q Q
INL10
3 7 6
LIN1
SLIN1
SW IN1
8
C IN1
7
LIN2
CIN2
SWIN2
SLIN2
DATA
MCU
CLK
I/F
LATCH
u 1 6 3
16 16
http://www.xiaoyu163.com
2 4
8 9 9
J402 (2/2)
-4
R-CH R
OUT
-3
REC L2
60 L
J404 (2/2)
-3
REC L1
L
58
AUDIO
-4
OUT
R-CH R
BAL L+
14
BAL R+
17
(0/6/12/18dB) (0 – -99dB)
LOUT
56 55 54
ROUT
R-CH
47
SLOUT
40 41
(0/6/12/18dB)
SROUT
R-CH 42
39
(0 – -99dB)
MUTE MUTE
3 1 5 1 5 0 8 9
Q361,362 Q365,366
(0 – -99dB)
(0/6/12/18dB)
COUT
38 37 36
(0/6/12/18dB) (0 – -99dB)
SWOUT
33 34 35
MUTE
Q364
Q379
INV.
-7V
AVEE
67
+7V +7V
SAVCC
31
+3.3V
DVDD 30
REG
Q471
m
c o
.
2
8 9 9
MD/TAPE
VIDEO 1
L-IN
DIGITAL
A
SECTION
R-IN
(Page 17)
FL-CH
FR-CH
SL-CH
POWER
D
SR-CH
SECTION
(Page 19)
2 4 9 8 2 9 9
C-CH
MUTE
Q363
WOOFER
AMP
IC401
J405
SUB
WOOFER
5 7
AUDIO
OUT
RELAY
DRIVER
Q560
RY560
DIGITAL
FC MUTE B
SECTION
(Page 17)
• Signal path
: TUNER (FM/AM)
: CD (ANALOG)
: VIDEO (AUDIO)
• R-ch is omitted due to
same as L-ch.