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