Read Sony STR-DE895 / STR-DE995 Service Manual online
STR-DE895/DE995
19
19
4-2. BLOCK DIAGRAM — TUNER/AUDIO SECTION —
DIGITAL
SECTION
C
DIGITAL
SECTION
B
DIGITAL
SECTION
A
POWER
SECTION
D
PRE AMP
IC300
41
28
29
30
29
30
34
31
33
31
33
32
22
22
AUDIO
IN
VIDEO 3
INPUT
AUDIO
OUT
AUDIO
IN
L
R
R-CH
L
R
R-CH
R-CH
R-CH
R-CH
R-CH
R-CH
L
R
L
R
VIDEO 2
DVD
OUT
AM
TM301
FM/AM TUNER UNIT
BUFFER
IC1142
SYSTEM
CONTROL
IC1101 (1/4)
TV/SAT
AUDIO
OUT
AUDIO
IN
AUDIO
IN
L
R
L
R
L
R
J2553
J2552
L
-1
-2
-3
-4
J302
R
L
MD/TAPE
OUT
IN
R
R-CH
R-CH
2ND_ROOM_RY
T.LAT
T.DATA
T.SERIAL_CLK
WOOFER_RELAY
WOOFER_RELAY
VOL_IC.DATA
VOL_IC.CLK
VOL_IC.LAT
006_LAT
7.1_DAT
7.1_CLK
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
DE995
J305 (2/2)
MUTE
Q541,591
MUTE
Q641,691
MUTE
Q491,791
RELAY
DRIVER
Q300
MUTE
Q441
MUTE
Q391
SUB
WOOFER
PRE
OUT
OUT
RELAY
DRIVER
Q351
Q410
SUB WOOFER
AMP
IC604
J2551
RY351
SBR-CH
SYSTEM MUTE
SBL-CH
C-CH
SR-CH
FR-CH
SL-CH
FL-CH
R-CH
L-CH
TU+10V
10
9
11
56
7
53
4
58
3
1
2
1
2
116
117
117
118
4
13
1
5
5
9
11
3
6
6
8
23
24
19
24
19
25
20
26
21
20
26
21
VIDEO 1
AUDIO
VIDEO 3
INPUT
L
R
R-CH
AUDIO
FM 75Ω
COAXIAL
22
63
62
74
73
21
24
22
2
80
18
20
20
19
16 15 14
16 15 14
18
4
SUB
WOOFER
SURR
BACK
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
CENTER
SURR BACK
CENTER
J303
J304
27
24
20
24
20
26
23
19
23
19
MULTI CH IN1
MULTI CH IN 2
ANTENNA
25
57
22
54
18
55
6
7
46
47
40
41
35
34
28
29
5
7
15
11
12
13
10
61
SBL
SEL
SEL
SW
SEL
C
SEL
SL
SEL
L
SEL
R-CH
R-CH
R-CH
R-CH
R-CH
R-CH
DE895
DE995
DE995
DE895
DE895
DE895
DE895
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
DVDD
DIR
FUNCTION SELECT
IC401
AVCC
+7V
+7V
LATCH
DAT
CLK
LATCH
DAT
CLK
-5
-6
-3
-4
-1
-2
-5
-6
-3
-4
-1
-2
-1
-2
-3
-4
-5
-6
-1
-2
-3
-4
-5
-6
DE995
J2001
(2/2)
J2052
(2/2)
SEL
SW
MCU
I/F
3.3V
REG
Q652
3.3V
(STBY)
+7V
R-CH
SBL OUT
SW OUT
C OUT
SL OUT
L OUT
R-CH
(SBR)
(SBR)
R-CH
R-CH
52
51
1
3
L OUT
SL OUT
C OUT
SW
OUT
SR OUT
R OUT
• Signal path
: TUNER (FM/AM)
: VIDEO (AUDIO)
• R-ch is omitted due to
same as L-ch.
same as L-ch.
(Page 20)
(Page 20)
(Page 24)
(Page 20)
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