DOWNLOAD Sony STR-DH740 (serv.man2) Service Manual ↓ Size: 5.51 MB | Pages: 86 in PDF or view online for FREE

Model
STR-DH740 (serv.man2)
Pages
86
Size
5.51 MB
Type
PDF
Document
Service Manual
Brand
Device
Audio
File
str-dh740-sm2.pdf
Date
PREV: Sony STR-DH740 Service Manual

Sony STR-DH740 (serv.man2) Service Manual ▷ View online

STR-DH740
STR-DH740
17
17
5-3.  BLOCK  DIAGRAM  – AMP Section –
FL
POWER AMP
LIMITER
Q602, Q603
BOOSTER
Q600
CURRENT
DETECT
Q604
CURRENT
DETECT
Q605
BOOSTER
Q601
D600
D650
D800
D850
D700
D750
D550
RY350
RY921
TB501 (1/2)
TB501 (2/2)
FRONT A
R
L
+
-
+
-
J101
PHONES
FR
Q620
POWER AMP
Q622
Q624
Q625
Q670
Q672
Q674
Q675
Q720
POWER AMP
Q722
Q724
Q725
Q570
POWER AMP
Q572
Q574
Q575
Q770
Q772
Q774
Q775
Q820
Q822
Q824
Q825
Q870
Q872
Q874
Q875
LIMITER
Q652, Q653
BOOSTER
Q650
CURRENT
DETECT
Q654
CURRENT
DETECT
Q655
RELAY
DRIVER
Q375
BOOSTER
Q651
SBL
LIMITER
Q802, Q803
BOOSTER
Q800
CURRENT
DETECT
Q804
CURRENT
DETECT
Q805
BOOSTER
Q801
LIMITER
Q852, Q853
CURRENT
DETECT
Q854
CURRENT
DETECT
Q855
SL
LIMITER
Q702, Q703
BOOSTER
Q700
CURRENT
DETECT
Q704
CURRENT
DETECT
Q705
BOOSTER
Q701
LIMITER
Q752, Q753
BOOSTER
Q750
CURRENT
DETECT
Q754
CURRENT
DETECT
Q755
BOOSTER
Q751
SYSTEM CONTROL
IC2100 (3/6)
C
PROTECT
TEMP_SENSOR_2
TEMP_SENSOR_1
LIMITER
HP_R
Y
FRONT_SPK_R
Y
SBL_SBR_R
Y
C/SL_SR_R
Y
HP_DET
LIMITER
Q552, Q553
BOOSTER
Q550
CURRENT
DETECT
Q554
CURRENT
DETECT
Q555
PROTECTOR
Q320 ~ Q325
BOOSTER
Q551
TH251
TH252
SBR
SR
RELAY
DRIVER
Q350
RELAY
DRIVER
Q360
RELAY
DRIVER
Q355
RELAY
DRIVER
Q365
RY360
TB503
SURROUND BACK/ 
BI-AMP FRONT HIGH/ 
FRONT B
R
L
+
-
+
-
SPEAKERS
RY355
TB502
SURROUND
R
L
+
-
+
-
RY365
D2119
D2118
D2120
CENTER
+
-
BOOSTER
Q850
BOOSTER
Q851
ANALOG AUDIO
SECTION
(Page 15)
B
67
68
92
66 86 90
88 91
ZONE2_PREOUT_SW_R
Y
89
4
‡ SLJQDO SDWK
           : AUDIO
‡ R-FK LV RPLWWHG GXH WR
  VDPH DV L-FK
STR-DH740
STR-DH740
18
18
5-4.  BLOCK  DIAGRAM  – ANALOG VIDEO/USB Section –
4
5
VIN1
VIN2
VIDEO DRIVER  
IC2354
OUT
VSW
1
6
22
21
DECODER
IC4100
USBDP
USBDM
25
LED_PLAY/LRCK/SPDIF
9
8
7
6
4
2
KEY_ROW3/SDA
KEY_ROW2/SCL
KEY_ROW1/BUSY
KEY_COL3/MCHNG
KEY_COL1/IRPT
O
RESETX
15
14
63
66
64
70
65
68
69
USB_SDA
USB_PCONT
USB_OVC
USB_SCL
USB_BUSY
USB_MCHNG
USB_IRPT
O
USB_RESET
HDMI CONTROLLER
IC3000 (1/2)
POWER CONTROL
IC4102
OVER VOLTAGE CONTROL
IC4101
56
54
55
USB_IP_Reset
USB_IP_SDA
USB_IP_SCL
4
13
12
RESET
I2C_SDA
I2C_SCL
USB MEMORY
IC3002
8
6
V_MUTE
V_SEL_SW2
SYSTEM CONTROL
IC2100 (4/6)
MUTE
PROTECTION
Q281 ~ Q283
XOUT_PLL
XIN_PLL
5
59
4
3
EN
FAULT
EN
J218 (1/2)
J218 (2/2)
VIDEO
VIDEO IN
VIDEO
SAT/CATV IN
VIDEO
MONITOR OUT
CN106
+D
-D
USB
DIGITAL
SECTION
(Page 16)
D
X4100
16.9344MHz
‡6LJQDOSDWK
:  AUDIO (DIGITAL)
:  VIDEO
:  USB
DC5V 
   1A MAX
STR-DH740
STR-DH740
19
19
5-5.  BLOCK  DIAGRAM  – DIGITAL VIDEO Section –
35 R2X2+
DATA2+
DATA2–
DATA1+
DATA1–
DATA0+
DATA0–
CLOCK+
CLOCK–
SCL (5V)
SDA (5V)
HOT PLUG DET
CEC
+5V POWER
DATA2+
DATA2–
DATA1+
DATA1–
DATA0+
DATA0–
CLOCK+
CLOCK–
SCL (5V)
SDA (5V)
HOT PLUG DET
CEC
+5V POWER
DATA2+
DATA2–
DATA1+
DATA1–
DATA0+
DATA0–
CLOCK+
CLOCK–
SCL (5V)
SDA (5V)
HOT PLUG DET
CEC
+5V POWER
R2X2-
R2X1+
R2X1-
R2X0+
R2X0-
R2XC+
R2XC-
DSCL2
34
33
32
31
30
29
28
85
46 R3X2+
R3X2-
R3X1+
R3X1-
R3X0+
R3X0-
R3XC+
R3XC-
45
44
43
42
41
40
39
DSCL3
DSDA3
89
88
CBUS_HPD3
R4X2+
R4X2-
R4X1+
R4X1-
R4X0+
R4X0-
R4XC+
R4XC-
DSCL4
DSDA4
CBUS_HPD4
90
RX52+
RX52-
RX51+
RX51-
RX50+
RX50-
RX5C+
RX5C-
DSCL5
DSDA5
CBUS_HPD5
64
63
62
61
60
59
58
57
98
97
99
DSDA2
CBUS_HPD2
84
86
R2PWR5V
87
R3PWR5V
91
CEC
SP_SERIES
MUTE
R4PWR5V
95
IC3506
HDMI RECEIVER
DATA2+
DATA2–
DATA1+
DATA1–
DATA0+
DATA0–
CLOCK+
CLOCK–
SCL (5V)
SDA (5V)
HOT PLUG DET
CEC
+5V POWER
54
53
52
51
50
49
48
47
93
92
94
HDMI_MUTE
31
INITX
38
Sparta_RST
29
MU_RST
14
HDMI CONTROLLER
IC3000 (2/2)
VCOM_RESET
42
INITX
38
SYSTEM CONTROL
IC2100 (5/6)
/CS
1
SCK
6
DO
2
DI
5
EEPROM
IC3502
R5PWR5V
100
4
RESET
IC3001
1
4
+5V REG.
IC3500
D3002
9
D3005
D3006
D3003
159
T0X2+
DATA2+
DATA2–
DATA1+
DATA1–
DATA0+
DATA0–
CLOCK+
CLOCK–
SCL (5V)
SDA (5V)
HOT PLUG DET
CEC
+5V POWER
T0X2-
T0X1+
T0X1-
T0X0+
T0X0-
T0XC+
T0XC-
TXDSCL0
158
157
156
155
154
153
152
107
TXDSDA0
TX_HPD0
+5V
106
105
121-122, 124-128, 130, 136
MUTEOUT/GPIO9 129
RESET 69
5VPWR_A 32
XTALIN 113
XTALOUT  114
SS/GPIO2 117
SCLK/GPIO3 118
SD0/GPIO4 119
SPSF_SPI_CS
45
ADV8003_SPSF_DIN
42
ADV8003_SPSF_SCK
43
ADV8003_SPSF_DOUT
44
SD1/GPIO5 120
+5V
TV OUT
ARC
HDMI
RESET SW
Q3001
RESET SW
Q3000
X3501
27MHz
DIGITAL
SECTION
(Page 16)
E
CN3504
4
6
1
3
7
9
10
12
15
16
19
13
18
CN3200
4
6
1
3
7
9
10
12
15
16
19
13
18
CN3503
4
6
1
3
7
9
10
12
15
16
19
13
18
CN3501
4
6
1
3
7
9
10
12
15
16
19
13
18
CN3502
4
6
1
3
7
9
10
12
15
16
19
13
18
‡6LJQDOSDWK
:  AUDIO (DIGITAL)
:  VIDEO
HDMI
BD IN  4K
GAME IN  4K
DVD IN
SAT/CATV IN
4K
Ver. 1.1
STR-DH740
STR-DH740
20
20
5-6.  BLOCK  DIAGRAM  – DISPLAY/POWER Section –
+15V
RECT
D923
RECT
D910-913
SYSTEM CONTROL
IC2100 (6/6)
VACUUM FLOURESCENT
DISPLAY
ND100
MASTER
VOLUME
ROTARY
ENCODER
S121
S115
S108 ~ S110,
S111 ~ S114
S101 ~ S105
X2100
4MHz
F910
RY951
F911
REMOTE CONTROL
SIGNAL RECEVER
IC101
INPUT
SELECTOR
ROTARY
ENCODER
S120
-7V
+HV
(VCC)
TO
AUDIO AMP
SECTION
-HV
(VCC)
+7V
+7V
+5V
+5V
+3.3V
F940
F941
+3.6V (DCDC)
+2V (DCDC)
+1.2V
+1.2V
+6V (DCDC)
STBY +3.3V
STBY +3.3V
D902
POWER
TRANSFORMER
(SUB)
T902
POWER
TRANSFORMER
(MAIN)
T901
F901
AC IN
RECT
D900 ~ D901,
D904 ~ D905
RECT
D921
RY920
F913
F912
F1
F2
+7V REG.
IC350
+7V REG.
IC351
-7V REG.
IC352
+5V REG.
IC2106
+5V REG.
IC2110
+3.3V REG.
IC102
RELAY  DRIVE
Q920
+3.6V REG.
IC1902
+3.3V REG.
IC902
+1.2V REG.
IC2500
+1.2V REG.
IC3508
+5V
F1
F2
+5V REG.
IC3503
+2V REG.
IC1903
+6V REG.
IC1904
RELAY  DRIVER
Q901
DC CONVERTER
TRANSFORMER
T100
SWITCHING
TRANSISTOR
Q102
LED DRIVER
Q105
LED
(PURE DIRECT)
D104
LED DRIVER
Q110
LED DRIVER
Q111
LED 
(ON/STBY)
D110
SWITCHING
TRANSISTOR
CONTROL
Q103 ~ Q104
AC OFF DETECT
Q900
98
POWER_RY
9
FL_ENABLE
64
WHITE_LED
71
FLASH_CLK/POWER_LED
82
STDBY_LED
93
AC_CUT
87
BRIDGEABLE_RY
42
40
38
53 FL_LAT
55 FL_CLK
54 FL_DATA
59 SIRCS_IN
63 VOLUME_JOG
52 INPUT_JOG
65 POWER_KEY
57 AD_KEY1
58 AD_KEY2
48 PE2/X0
49 PE3/X1
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