Block Diagram - Tuner/Audio Section - Sony STR-DE497P Service Manual

STR-DE497P/K4800P/K5800P
Q Q
3 7 6 3 1 5 1 5 0
4-2. BLOCK DIAGRAM — TUNER/AUDIO SECTION —
TN1
FM/AM TUNER UNIT
TU+10V
+10V
L CH
AM
R CH R-CH
ANTENNA
STEREO
FM 75Ω
TUNED
COAXIAL
MUTE
CE
ST-DO/MC-DI
ST-DI/MC-DO
CLK
FM SIGNAL OUT
RDS DATA
RDS DATA
RDS INT
TU+3.3V
DE497P
T E
L 1 3 9 4 2 2 9 6 5 1 3
SYSTEM
CONTROL
IC1601 (1/4)
RDS SIGNAL
43
RDS DATA
RDS DATA 53
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
STR-DE497P/K4800P/K5800P
J402 (1/2)
-5
L
STEREO
CD IN
TUNED
-6
R-CH
MUTE R
-1
CE
L
TU-DO
IN
MD/TAPE
DATA -2
R-CH
R
CLK
J403
-3
FM OUT
L
AUDIO
DVD
IN
-4
R-CH
RDS INT
R
-1
L
AUDIO
VIDEO2
IN
-2
R-CH
R
J404 (1/2)
-1
L
AUDIO
VIDEO 1
IN -2
R-CH
R
J401
-5
L
FRONT
-6
R-CH
R
-3
MULTI L
SURROUND
CH IN
-4
R-CH
R
FM OUT
-2
SUB
WOOFER
-1
RDS INT
CENTER
DE497P
L OUT
STEREO
C OUT
TUNED DIGITAL
C
SECTION
SW OUT
MUTE
(Page 17)
CE CLK
SL OUT
TU-DO DATA
x a o
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. i
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DIR
FUNCTION
SELECT
IC201
INL1
4
INL2
2
INL3
80
INL4
78
ATT
0/-6/-12/-18dB
R-CH
INL5
76
INL6
74
INL7
72
INL8
70
INL9
68
INL10
65
Q Q
3 7 6
LIN1
11
SLIN1
10
SW IN1
8
C IN1
7
LIN2
20
CIN2
24
SWIN2
25
SLIN2
23
DATA
28
MCU
CLK
27
I/F
LATCH
29
u 1 6 3
.
16 16
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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
Q361,362 Q365,366
(0 – -99dB)
(0/6/12/18dB)
3 1 5 1 5 0 COUT 8 9 2
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)
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.