Sony STR-DE875 / STR-DE975 Service Manual ▷ View online
10
10
STR-DE875/DE975
3-2. BLOCK DIAGRAMS – MAIN SECTION –
IC253
VIDEO DRIVER
• Signal Path
• R-CH is omitted due to same as L-CH.
: FM
: CD/SACD
: DVD/LD (DIGITAL)
(ANALOG)
AUDIO IN
AUDIO IN
AUDIO IN
MULTI
CH IN
FRONT
SURROUND
CENTER
SUB WOOFER
J307
PROCESSOR
IC303
L IN9
2
L REC3
67
L REC4
4
L IN7
71
L IN6
70
L REC1
61
L REC2
66
L IN1
62
51
L OUT
L IN4
68
47
SL OUT
39
C OUT
35
SW OUT
MUTING
Q401
DATA
20
CLOCK
21
LATCH
22
MUTING
Q501
MUTING
Q601
MUTING
Q651
SWITCH
Q1105
VOL_IC.CLK
VOL_IC.LAT
VOL_IC.DATA
SYSTEM CONTROLLER
IC1101(2/3)
DVD/LD
IN
J1301
IC1351
3
5
6
2
DIGITAL AUDIO
I/F RECEIVER
IC1301
L
DIN2
5
DIN0
3
DO
35
DI
36
CLK
38
CE
37
ERROR
34
XSTATE
17
XMODE
48
13
CK OUT
14
2
1
6
5
BCK
20
XMCK
15
LRCK
16
DATAO
IC1303
X1301
24.576MHz
12.288MHz
AUDIO DSP2
IC1551
KFSI0
62
SDI2
SDI3
SDI1
28
SDI4
39
HCLK
75
HCS
76
HACN
83
PM
140
BST
141
XRST
16
8
60
SDO1
61
SDO2
25
SDO3
BCKI1
38
LRCKI1
29
IC1552
SRAM
DAC
IC1451
SCKI
38
MDO
33
MDI
34
MC
35
ML
36
RST
PCM1604.MDO
PCM1604.MDI
PCM1604.MC
PCM1604.ML
PCM1604.RST
37
14
VOUT1
BCK
40
LRCK
41
DATA1
45
DATA2
46
DATA3
47
12
VOUT3
10
VOUT5
9
VOUT6
SELECTOR
IC302
TUNER
10
TUNER
4
DATA
15
CLK
14
LAT
16
2ND
12
VISUAL
7
CD
CD
11
3
TAPE
TAPE
8
6
MD/DAT
MD/DAT
9
5
2
OUTPUT
6
7
IC1403
3
1
IC1402
3
3
1
1
IC301
EQ AMP
IC761
6
7
IC1404
6
7
IC1405(1/2)
2
1
IC1405(2/2)
ANALOG SOUND
L IN2
63
L IN3
64
AL IN
11
SL
13
16
15
AL OUT
10
DL IN
27
29
31
32
ASL IN
ASW IN
AC IN
SL
C
SW
DSL IN
DC IN
DSW IN
A
D
70 69 46 67
71 73
45
72
D.DO
DI
1
2
2ND_RY
2ND_LAT
2ND_RY
2ND_LAT
2ND_RY
2ND_LAT
2ND_LAT
2ND_CLK
2ND_DATA
DIR CLK
DIR CE
ERROR
XSTATE
DIR CKSEL1
DATA0
88
PCM1800.RST
79
9616.HCS2
78
9616.HACN2
76
9616.PM2
75
D2.BST2
74
D2.XRST2
93
108
PLL2
DSP2.EXLOCK
50
92 91 90 89
ANA/DIG
MUTING
CONT
Q1103,1104
SYSTEM_MUTE
MUTING
SWITCH
SWITCH
Q771
54
MD0
53
MD1
52
MD2
109
SOT1
110
SIN1
MD0
VDD
MD2
FLASH 1
FLASH 2
RESET
+3.3V
CNP503
B
J306
J301
J302
J303
J304
J305
MD/DAT
CD/SACD
DVD/LD
TV/SAT
AUDIO OUT
IC1352
TV/SAT
IN
DIN1
4
IC1353
MD/DAT
IN
IC1354
MD/DAT
OUT
DOUT
2
DVD/LD
IN
5
6
7
IC1302
SELECTOR
1
5
IC1305
DIVIDER
14
TC74HC153_A
22 XIN
43
DIR XMODE
CKSEL1
47
GP3
120
HD OUT
82
HD IN
74
49
DSP2.GP3
104
HDOUT2
144
MCLK1
139
MCLK2
X1551
13.5MHz
10
SCK OUT
64
BCKO
63
LRCKO
132
GP0
111
GP7
24
AUDIO
GP1
131
EXLOCK
PLOCK
136
AUDIO DSP1
IC1501
IC1304
KFSI0
22
SDI2
30
HCLK
34
HCS
36
HACN
32
PM
113
BST
56
XRST
7
2
23
SDO1
24
SDO2
25
27
35
SDO3
26
SDO4
BCKI2
29
BCKI1
17
LRCKI2
28
LRCKI1
15
IC1502
SRAM
9616.HCLK2
9617.HCS
9617.HACN
85
9617.PM
81
9617.BST
84
9617.XRST
48
DSP1.PLL1
GP9
68
HD OUT
35
HD IN
33
80
9617.GP9
115
FREQ SEL
DSP1.HD OUT
HDIN2
9
MCLK1
12
MCLK2
X1501
13.59MHz
20
BCKO1
19
LRCKO
67
GP10
18 SDI1
GP8
69
EXLOCK
PLOCK
59
FLASH
PROGRAMMING
42
TUNER UNIT
FM
AM
R-CH
DATA
DO
CLOCK
CE
STEREO
TUNED
MUTING
FM
AM
DET OUT
R OUT
L OUT
2
4
14
16
13
X1201
4.33MHz
X251
L251
14.31818MHz
RDS
IC1201
DE875:AEP,UK
SYSTEM CONTROLLER
IC1101(1/3)
TUNER_DO
28
J252
TV
3
LD
5
V2.OUT
11
14
SW1
J251
M.OUT
1
VIDEO SWITCH
IC251
VIDEO OUT
VIDEO OUT
VIDEO 1
MONITOR
MONITOR
J140(2/2)
V3
7
VIDEO IN
VIDEO 3
J253
V2.IN
9
V1.OUT
15
V1.IN
13
DVD/LD
VIDEO 1
VIDEO 1
VIDEO 1
VIDEO 1
CTRL A1 II
VIDEO IN
VIDEO IN
VIDEO IN
S VIDEO IN
S VIDEO IN
S VIDEO IN
TV/SAT
6
4
5
10
SW2
3
1
2
4
SW3
23
SIN
IC252
ON-SCREEN DISPLAY
CONTROLLER
XS
9
EXS
8
XD
16
EXD
15
22
SCLK
2
CS
3
VIN
1
YIN
2
25
27
26
CIN
VOUT
YOUT
COUT
7
8
6
VOUT
YOUT
COUT
3
VIN
2
YIN
1
CIN
4
SW3
11
13
12
6
SW4
6
SW4
8
10
9
2
SW5
2
SW5
TV/SAT
TV/SAT
DVD/LD
DVD/LD
J202
J203(1/2)
Y
C
Y
C
Y
C
V1.IN
13
Y SWITCH
IC201
15
V1.OUT
LD
5
TV
3
V1.IN
13
LD
5
TV
3
14
SW1
10
SW2
1
M.OUT
4
SW3
6
SW4
2
SW5
15
V1.OUT
14
SW1
10
SW2
1
M.OUT
C SWITCH
IC202
S VIDEO OUT
S VIDEO OUT
MONITOR
J203(2/2)
J201
Y
C
Y
C
T.DATA
30
TUNER_SERIAL.CLK
29
T.LAT
31
FM IFOUT
RDS_SIGNAL
139
STEREO
23
TUNER_AUTO_STOP
24
TUNER_MUTE
25
RDS DATA
32
RDS CLK
61
A1 IN
86
MBUS_VIDEO
65
MBUS_DVD
64
MBUS_STATUS_OUT
51
MBUS_TV
63
A1 OUT
87
V.SW1
V.SW2
V.SW3
V.SW4
33
34
35
36
BUFFER
Q1102
BUFFER
Q201,202
BUFFER
Q1101
J204
CTRL S OUT
J205
CTRL S OUT
J206
CTRL S STATUS IN
J207
CTRL S IN
J208
VIDEO OUT
VIDEO 2
VIDEO IN
OUT
PHONO
IN
IN
IN
OUT
AUDIO IN
AUDIO IN
AUDIO OUT
VIDEO 2
TAPE
OUT
IN
COAXIAL
OPTICAL
DIGITAL
ANTENNA
+5V
3
2
1
11
12
13
8
9
10
OSD DATA
OSD CLK
OSD LAT
106
105
107
+5V
11
10
13
O2-1
O2-2
IN1
6
O3-1
7
O3-2
4
IN3
2
OUT1
DE975
DE975
DE975/DE875:US,CND
Q203
CRAMP
Q204
CRAMP
IC203
REMOTE CONTROL I/F
1
14
16
LIN
BCK
13 LRCK
SYSCLK
6
RSTB
15
DOUT
IC1401
ADC
J761
J140(1/2)
VIDEO 3
2ND ROOM
DE975
DE975
C
SIRCS OUT
1
7
3
5
6
2
IC1306
IC1171
IC1141
82 83
103 102
47
116 117 118
121
120
RELAY
DRIVER
Q781
RY761
OPTICAL
INPUT
OPTICAL
INPUT
OPTICAL
INPUT
OPTICAL
OUTPUT
11
11
STR-DE875/DE975
– DISPLAY/POWER SECTION –
• Signal Path
• R-CH is omitted due to same as L-CH
: FM
: CD/SACD
: DVD/LD (DIGITAL)
RESET
IN2
8
12
+V OUT2
POWER AMP
IC551
9
NF2
LIMITER
Q421
11
-V OUT2
LIMITER
Q422
BOOSTER
Q423
BOOSTER
Q424
CURRENT
DETECT
Q425,426
AF POWER
PROTECT
Q427
IN1
6
2
+V OUT1
5
NF1
LIMITER
Q521
3
-V OUT1
LIMITER
Q522
BOOSTER
Q523
BOOSTER
Q524
CURRENT
DETECT
Q525,526
IN+
1
6
+V OUT
POWER AMP
IC601
2
IN-
LIMITER
Q621
5
-V OUT
LIMITER
Q622
BOOSTER
Q623
BOOSTER
Q624
CURRENT
DETECT
Q625,626
D752
PROTECT
SWITCH
Q751-753
RELAY
DRIVER
Q701
RY701
RELAY
DRIVER
Q431
RY401
D432
RELAY
DRIVER
Q531
RY501
D532
RELAY
DRIVER
Q631
RY601
D632
3
1
RELAY
DRIVER
Q681
RY681
L
R
SR
SL
C
R-CH
R-CH
R-CH
PHONES
TM601
TM501
AUDIO
OUT
J306
20
PROTECTOR
15
HP_RY
16
SP_A_RY
18
REAR_RY
17
CENTER_RY
19
WOOFER_RY
RV102
ENCODER
3
1
FUNCTION_JOG_1B
11
FUNCTION_JOG_1A
10
RV101
ENCODER
3
1
VOL_JOG_2B
12
VOL_JOG_2A
13
PW_ON/OFF
62
S161
SPK_SEL
14
S151
55
RSTX
60
VOLT_DETEC_STOP
66
SIRCS
REMOTE
CONTROL
RECEIVER
2
1
IC103
+5V
REG
D921-924
AC
IN
T902
RY911
D926
D927
D925
RELAY
DRIVER
Q911
Q921
VOLTAGE
DET
D861-864
-5V
REG
3
2
+5V
REG
3
1
-7V
REG
3
2
+7V
REG
1
3
ANALOG
+7V
VIDEO
+5V
VIDEO
-5V
IC811
IC812
IC814
IC815
PW_RY
22
SUB-T
41
RELAY
+B
D851-854
240V
220V
120V
0V
VOLTAGE
SELECTOR
D875:E
S901
58
57
X0
X1
X1101
16.5MHz
FL1
FL2
L
SL
SL
C
SW
A
MUTING
1
POWER
MUTING
Q721,722
119
AC MUTE
J701
FLUORESCENT
INDICATOR TUBE
FL101
112
FL DIN/F1
111
FL CLK
113
FL LAT/F2
114
FL DRV.CLR
28
DIN
30
CLK
31
LAT
32
CL
2 23
G1-22
1,70 37
P1-35
16
DATA
17
CLK
18
STB
19
CLR
22
1
FL1
FL2
4
2ND_DATA
3
2ND_CLK
6
LED_DRV_CE
FUNCTION
KEY
AD1
132
S111-117
S101-107
FUNCTION
KEY
AD2
133
FUNCTION
KEY
AD3
134
S121-127
S118
FUNCTION
KEY
AD4
135
S131-136
FUNCTION
KEY
AD5
136
S141-146
B
C
D
RESET
SYSTEM CONTROLLER
IC1101(3/3)
AF POWER
PROTECT
Q527
AF POWER
PROTECT
Q627
2
1
FRONT
SURROUND
CENTER
5
7
21
HP_CTRL
D101-117
5
LED_DRV_CL
DE975
S147
DE975
RV103
ENCODER
3
1
CURSOR_JOG_3B
8
CURSOR_JOG_3A
7
BUFFER
Q1106
+3.3V
REG
3
1
2
1
IC1021
ANALOG
-7V
D871
D872
+12V
REG
3
1
3
1
TUNER
+12V
IC1061
T901
+3.3V REG
Q821
+3.3V
REG
3
1
IC1071
TUNER
+3.3V
+3.3V
(IC303)
F901
JW809
F902
AC
OUTLET
J911
F904
D801
4
Ω
8
Ω
IMPEDANCE
SELECTOR
S801
D805
D804
+B
-B
-B SW
Q723,724
+30V REG
Q801
+B SW
Q912,913
FL101
+30V
POWER AMP
-B
+5V
REG
3
1
IC1031
+2.5V
REG
3
1
IC1051
+2.5V
IC1011 PIN1
+3.3V
REG
3
1
IC1041
+3.3V
+5V
REG
3
1
IC1001
ANALOG
+5V
+5V (STBY)
SPEAKERS
SUB
WOOFER
IC1011
IC1111
+3.3V (STBY)
(IC1101)
SIRCS OUT
3
3
1
2
1
2
6
6
4
5
4
5
8
8
9
9
10
10
11
11
12
12
13
13
+5V (STBY)
30 ,10,9, 7
IC101
FL DRIVER
IC102
LED DRIVER
5
SDA
6
99
100
SCL
EEPROM.SDA
EEPROM.SCL
IC1131
EEPROM
(CURSOR)
FUNCTION
MASTER VOLUME
SPEAKERS
2ND_DATA
2ND_CLK
IC305
IC304
IC1151
IC1161
FRONT
12
12
STR-DE875/DE975
3-3. PRINTED WIRING BOARD – DIGITAL SECTION –
• See page 8 for Circuit Boards Location.
IC1051
IC1303
IC1354
IC1353
IC1352
IC1351
IC1171
IC1302
IC1301
IC1305
IC1306
IC1401
IC1402
IC1501
IC1551
IC1552
IC1403
IC1404
IC1405
IC1451
IC1001
IC1141
IC1131
IC1101
IC1011
IC1021
IC1061
IC1041
IC1031
IC1151
IC1161
IC1201
IC1071
IC1502
IC1304
IC1111
R1071
R1072
R1577
R1578
R1579
R1576
R1514
R1553
R1320
R1360
R1321
R1082
CNP101
1
CNP105
1
CN 805
(PAGE 17)
CNP814
(PAGE 27)
FM
75
Ω
COAXIAL
AM
CNS201
(PAGE 23)
CNP810
(PAGE 17)
CNP808
(PAGE 17)
1
3
1
3
1
3
1
3
Ref.No.
Location
D1001
F-10
D1102
E-7
D1103
F-7
D1105
F-6
D1301
B-7
D1302
A-7
IC1001
E-7
IC1011
G-10
IC1021
G-9
IC1031
G-10
IC1041
G-10
IC1051
F-2
IC1061
G-10
IC1071
D-10
IC1101
F-7
IC1111
F-8
IC1131
E-7
IC1141
E-7
IC1151
G-7
IC1161
G-6
IC1171
A-10
IC1201
D-10
IC1301
B-9
IC1302
B-10
IC1303
A-7
IC1304
A-9
IC1305
B-9
IC1306
B-8
IC1351
A-10
IC1352
A-9
IC1353
A-9
IC1354
A-8
IC1401
B-7
IC1402
C-7
IC1403
C-7
IC1404
D-7
IC1405
D-7
IC1451
C-7
IC1501
C-8
IC1502
C-9
IC1551
D-8
IC1552
D-9
Q1101
G-8
Q1102
E-8
Q1103
F-6
Q1104
F-6
Q1105
F-6
Q1106
E-8
• Semiconductor
Location
13
13
STR-DE875/DE975
3-4. SCHEMATIC DIAGRAM – DIGITAL SECTION (1/4) –
• See page 9 for Waveform. • See page 29 for IC Block Diagrams.
IC B/D
IC B/D
IC B/D
IC B/D
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