Read Sony STR-DG300 Service Manual online
STR-DG300
11
11
STR-DG300
4-1. BLOCK DIAGRAM — TUNER/AUDIO SECTION —
SECTION 4
DIAGRAMS
(Page 13)
(Page 12)
(Page 12)
(Page 14)
43
76
75
78
75
78
74
73
73
70
SA-CD/CD
IN
MD/TAPE
OUT
MD/TAPE
IN
DVD
AUDIO IN
VIDEO 3 IN/
PORTABLE AUDIO IN
L
J403
J2500
J402
J404
R
R–CH
R–CH
R–CH
R–CH
L
R
R–CH
AM
TN1
FM/AM TUNER UNIT
SYSTEM CONTROL
IC1101 (1/4)
L
R
L
R
L
-3
-4
-1
-2
-5
-6
R
L
VIDEO 2
AUDIO OUT
AUDIO IN
AUDIO IN
R
L
R
R–CH
RDS SIG/XM REQ
S LATCH
SW RY
VOL DA
VOL CL
STEREO
TUNED
TUNED
MUTE
DO
17 TUNER DATA/FL DATA
16 T.SERIAL CLK/FL CLK
16 T.SERIAL CLK/FL CLK
L–CH
R–CH
STEREO
TUNED
MUTING
CE
DO
DATA
CLOCK
VIDEO 1
AUDIO
OUT
SUB
WOOFER
RELAY
DRIVER
Q560
SUB WOOFER
AMP
IC402
J309
RY560
R–CH
L–CH
R–CH
L–CH
TU+3.3V
11
14
14
60
59
59
FM 75Ω
COAXIAL
44
45
24
25
68
66
32
28
30
34
38
60
59
59
46
ANTENNA
10
13
12
41
42
88
87
85
84
86
81
83
82
5
7
54
56
51
52
49
SW
SEL
C
SEL
SL
SEL
L
SEL
R–CH
R–CH
26
27
27
R–CH
R–CH
R–CH
R–CH
DIR
FUNCTION SELECT
IC401
AVCC
AVEE
+7V
–7V
-3
-4
-1
-2
22
-3
-4
-1
-2
SEL
SW
MCU
I/F
R–CH
SW OUT
L OUT
R–CH
R–CH
TU+10V
52 RDS CLK/XM DPOWER
RDS INT
FM SIG OUT
53 RDS DATA/XM COMMAND
RDS DATA
• Signal path
: TUNER (FM/AM)
: VIDEO (AUDIO)
: CD (ANALOG)
• R
–
ch is omitted due to
same as L
–
ch.
SBL
SEL
SEL
36
FL CLK
FL DATA
KEY/
DISPLAY
SECTION
SECTION
C
DIGITAL
SECTION
B
17
DIGITAL
SECTION
A
POWER
SECTION
D
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