Block Diagram - Tuner/Audio Section - Sony STR-DE997 Service Manual

4-2. BLOCK DIAGRAM — TUNER/AUDIO SECTION —
VIDEO 3
VIDEO 1
INPUT
AUDIO
AUDIO
IN
L R L R
-2 -3 -5 -6 -3
J2702
(2/2)
TN1
FM/AM TUNER UNIT
L-CH
FM 75Ω
COAXIAL
R-CH R-CH
STEREO 28 TUNER_STEREO
TUNED 29 TUNER_AUTO_STOP
ANTENNA
MUTING 30 TUNER_MUTE
CE 34 T.LAT
AM
31 TUNER_DO
DO
DATA 33 T.DATA
CLOCK 32 T.SERIAL_CLK
TU+10V
22 WOOFER_RY
SUB
WOOFER
J303
-1 -2 -3 -4 -5 -6 -1
L R L R L
FRONT SURROUND FRONT
CENTER
MULTI CH IN 2
STR-DE997
RELAY
DRIVER
Q300
VIDEO 2 DVD TV/SAT
2ND
AUDIO AUDIO AUDIO AUDIO AUDIO
ZONE
OUT IN OUT IN IN
L R L R L R L R L R
-4 -1 -2 -5 -6 -3 -4 -1 -2
J2553 J2552
TV/SAT
23
DVD/LD
24
VIDEO 2 OUT
19
VIDEO 2
25
VIDEO 1 OUT
20
VIDEO 1
26
VIDEO 3
21
2ND ROOM RY 41
006_LAT
3 13 11
7.1_DAT 1
1 3
BUFFER
7.1_CLK 2
5 IC1142 6
011_LAT 4 9 8
VOL_IC.DATA 116
VOL_IC.CLK 117
VOL_LATCH 118
SYSTEM
CONTROL
IC1101 (1/5)
6.1L
27
6.1SL
24
6.1C
20
7.1IL
26
7.1SL
23
7.1L
19
7.1SW
10
6.1SW
9
J305
SURR BACK
(1/2)
-1 -2
L R
-2 -3 -4 -5 -6
CENTER SUB
WOOFER
R L R J304
SURROUND
MULTI CH IN 1
RY300
PRE AMP
IC300
J305 (2/2)
-3
L
1 3
OUT
-4
R R-CH
FUNCTION SELECT
61
AUDIO
IN
18 4
AUDIO
SELECT
IC2560
COM
22 2
SEL
SW
16 15 14
80
18
MCU
20
I/F
19
16 15 14
AUDIO
SELECT
IC402
L OUT
25 57
SL OUT
22
54
C OUT
18 55
SW
OUT
SW
11 56
SR OUT SEL
7 53 R-CH
R OUT
R-CH 4 58 R-CH
SBL
52
SEL
51 R-CH
15 11
SBL OUT
SW OUT
DIGITAL
C
C OUT
SECTION
SL OUT
(Page 14)
L OUT
13 13
3.3V
MD/TAPE
REG +7V
Q652
OUT IN
L R L R
DIR -7V +7V
-1 -2 -3 -4
IC401
21 24 22 J302
DVDD AVEE AVCC
63
R-CH 62
1
74
73
R-CH
78
76
6
R-CH 7
L
46
SEL
R-CH 47
MUTE
Q541,591
SL
40
SEL
R-CH 41
MUTE
Q641,691
35
MUTE
C
Q791
SEL
34
MUTE
Q391
28
R-CH 29
MUTE
5
Q441,491
12 13 10
SUB WOOFER
AMP
Q410
IC604
DIGITAL
B
SYSTEM MUTE
SECTION
(Page 14)
• Signal path
• R-ch is omitted due to
same as L-ch.
STR-DE997
PHONO SA-CD/CD
IN IN
L R L R
-1 -2 -3 -4
J301
EQ AMP
IC301
3
L-CH
DIGITAL
A
SECTION
R-CH
(Page 14)
FL-CH
FR-CH
SL-CH
SR-CH POWER
D
SECTION
(Page 18)
C-CH
SBL-CH
SBR-CH
J2551
PRE SUB
7
OUT WOOFER
RY351
RELAY
DRIVER
Q351
: TUNER (FM/AM)
: VIDEO (AUDIO)
: CD (ANALOG)