Block Diagram - Tuner/Audio Section - Sony STR-DE685 Service Manual

4-2. BLOCK DIAGRAM — TUNER/AUDIO SECTION —
TM301
FM/AM TUNER PACK
TU+10V
+10V
L CH
FM 75Ω
COAXIAL
R CH R-CH
ANTENNA
STEREO
STEREO
TUNED
AM
TUNED
MUTE
MUTE
CE
CE
DO/DI
ST-DO/MC-DI
DATA
ST-DI/MC-DO
CLK
CLK
FM OUT
FM SIGNAL OUT
RDS DATA
RDS DATA
RDS INT
RDS INT
TU+3.3V
AEP,UK,AUS MODEL
SYSTEM
CONTROL
IC1601 (1/4)
FM OUT
RDS SIGNAL
43
RDS DATA
RDS DATA 53
RDS INT
RDS CLOCK
52
STEREO
STEREO 76
TUNED
TUNED 73
MUTE
TUNER
MUTE 75
CE CLK
SLATCH 78
DO/DI DATA
DO 76
DATA 14
VOL IC/
TUNER
CLK 15
LATCH VOL IC 16
WOOFER RELAY 69
J298 (1/2)
-2
L
VIDEO 3
AUDIO
-3
IN
R R-CH
IN 8
1
J402 (1/2)
-3
IN 9
L
2
CD/SACD IN
-4
R R-CH
-1
IN 10
L
3
AUX IN
-2
R
R-CH
IN 5
68
J403
-3
L IN 6
69
AUDIO
DVD/LD
IN -4
IN 7
R-CH
R 70
-1
IN 8
L 71
MD/TAPE IN
-2
R-CH
R
J404 (1/2)
-5 IN 1
62
L
AUDIO
VIDEO 1
IN
-6
R-CH
R
-1
IN 2
63
L
AUDIO
VIDEO 2
IN -2
IN 3
R-CH
64
R
J401
-1
AL IN
11
L
FRONT
-2
R-CH
R
-3
ASL IN
13
MULTI L
SURROUND
CH IN
-4
R-CH
R
-6
SUB ASW IN
16
WOOFER
-5
AC IN
15
CENTER
DSL IN
DSLIN
29
DSW IN
DSWIN 32
DIGITAL
3
DC IN
SECTION
DCIN 31
(Page 18)
DL IN
27
DLIN
DATA
20
CLK
21
LATCH
22
DIR
FUNCTION
SELECT
IC201
LREC 3
67
LREC 1
61
0/6/12dB
ALOUT
ATT
10
0/-6dB
AROUT
R-CH 9
0/6/12dB
LSELOUT
49 50
SLDELOUT
45 46
CSELOUT
37 38
0/6/12dB
0/6/12dB
SWSELOUT
33 34
0/6/12dB
MCU
I/F
17 17
J402 (2/2)
-5
R-CH R
OUT MD/TAPE
-6
L
J404 (2/2)
-3
L
AUDIO
VIDEO 1
-4
OUT
R-CH R
L-IN
1
R-IN
LOUT
51 FL-CH
ROUT
R-CH
55 FR-CH
SLOUT
47 SL-CH
SROUT
4
R-CH 43 SR-CH
MUTE MUTE
Q361,362 Q365,366
COUT
39 C-CH
MUTE
Q363
WOOFER
AMP
IC401
SWOUT
35 5 7
MUTE
Q364
Q379
RELAY
INV.
DRIVER
Q560
RY560
FC MUTE 2
+7V +7V
• Signal path
VCC
: TUNER (FM/AM)
+3.3V
+3.3V
REG
: CD (ANALOG)
Q471
: VIDEO (AUDIO)
• R-ch is omitted due to
same as L-ch.
• Abbreviation
AUS: Australian model
STR-DE685
Ver 1.1
DIGITAL
SECTION
(Page 18)
POWER
SECTION
(Page 21)
J405
SUB
WOOFER
AUDIO
OUT
DIGITAL
SECTION
(Page 18)