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
45
45
5-34.  PRINTED WIRING BOARD – HEADPHONE Board –
 
• See page 14 for Circuit Boards Location.    • 
: Uses unleaded solder.
5-32.  PRINTED WIRING BOARD – POWER KEY Board –
 
• See page 14 for Circuit Boards Location.    • 
: Uses unleaded solder.
5-35.  SCHEMATIC  DIAGRAM  – HEADPHONE Board –
5-33.  SCHEMATIC  DIAGRAM  – POWER KEY Board –
1
A
B
C
2
3
4
5
6
7
POWER KEY BOARD
1
8
3
4
5
6
7
O
G
LED_ON
CN103
8P
AD1
LED_STBY
POWER_BUTTON
DGND
NC
+3.3V_STBY
LED_ON
2.2k
R171
10k
R170
22k
R177
4.7k
R172
CL166
CL165
CL164
CL162
CL161
CL160
CL163
Q111
2PD601ART
100
R175
100
R176
100k
R178
10k
R173
100k
R179
Q110
LED DRIVER
LED DRIVER
2PD601ART
D110
SML78423C-TP15
10k
R174
S114
SPEAKERS
LED (ON/STBY)
S112
TUNING –
S111
TUNING +
S115
"/1
S113
TUNING
MODE
L
DISPLAY
BOARD
CN100
(Page 38)
1
A
B
2
3
4
5
HEADPHONE BOARD
1
3
4
5
CL185
CL186
CL187
CL188
CN107
5P
HP_DETECT
HP_R
HP_GND
HP_L
C160
1000p
C162
1000p
C161
1000p
J101
PHONES
I
MAIN
BOARD
(2/4)
CN391
(Page 34)
Ver. 1.1
1
A
B
C
D
E
F
G
2
3
4
5
6
7
8
1
8
3
CN103
S111
S112
S113
S114
S115
GO
D1
10
LP110
R170
CL161
R174
CL160
CL163
R171
R173
R177
R172
CL165
CL164
R175
CL166
R178
CL162
R179
R176
Q110 E
Q111
E
SPEAKERS
TUNING MODE
TUNING –
TUNING +
&/1
M
DISPLAY
BOARD
CN100
(Page 37)
  POWER KEY BOARD
1-887-712-
21
(21)
1
A
B
C
D
E
F
2
3
4
5
6
7
8
J101
1
5
3
CN107
CL188
C160
CL186
CL185
C161
CL187
C162
PHONES
 HEADPHONE BOARD
K
MAIN BOARD
CN391
(Page 31)
1-887-714-
21
(21)
STR-DH740
STR-DH740
46
46
•  IC Block Diagrams
IC2101  BU4229F-TR (DIGITAL BOARD (3/7))
IC3001  BU4229F-TR (DIGITAL BOARD (5/7))
+
–
1
2
4
Vref
Vout
CT
GND
V
DD
3
IC2102  BR24T64FJ-WE2 (DIGITAL BOARD (3/7))
1
A0
A1
A2
GND
Vcc
64Kbit    EEPROM    ARRAY
WORD
ADDRESS REGISTER
CONTROL LOGIC
HIGH VOLTAGE GEN
Vcc LEVEL DETECT
STOP
ACK
START
DATA
REGISTER
8bit
13bit
ADDRESS
DECODER
WP
SCL
SDA
2
3
4
8
7
6
5
IC2104  PCM1681PWPR (DIGITAL BOARD (2/7))
MS/ADR/FMT1 2
MC/SCL/DEMP 3
SCK 5
DATA1 6
MD/SDA/MUTE 4
ZR1/FMT0 1
FUNCTION
CONTROL
INTERFACE
BCK 7
LRCK 8
VDD 9
DGND 10
DATA2 11
DATA3 12
DATA4 13
MSEL 14
SERIAL
INPUT
INTERFACE
8
OVERSAMPLING
DIGITAL FILTER
WITH
FUNCTION
CONTROLLER
ENHANCED
MULTILEVEL
DELTA-SIGMA
MODULATOR
SYSTEM CLOCK
MANAGER
ZERO
DETECT
POWER
SUPPLY
SYSTEM
CLOCK
ZR2
28
VOUT1
27
D/A
CONVERTER
OUTPUT AMP AND
LOW-PASS FILTER
OUTPUT AMP AND
LOW-PASS FILTER
OUTPUT AMP AND
LOW-PASS FILTER
OUTPUT AMP AND
LOW-PASS FILTER
OUTPUT AMP AND
LOW-PASS FILTER
OUTPUT AMP AND
LOW-PASS FILTER
OUTPUT AMP AND
LOW-PASS FILTER
OUTPUT AMP AND
LOW-PASS FILTER
D/A
CONVERTER
D/A
CONVERTER
D/A
CONVERTER
D/A
CONVERTER
D/A
CONVERTER
D/A
CONVERTER
VOUT2
26
VCOM
25
AGND2
24
VCC2
23
VOUT3
22
VOUT4
21
VOUT5
20
VOUT6
19
AGND1
18
VCC1
17
VOUT7
16
VOUT8
15
D/A
CONVERTER
IC2105  TC7WHU04FK (DIGITAL BOARD (2/7))
IC2107  LC89075WA-H (DIGITAL BOARD (1/7))
PVDD
RXIN1
RXIN2
RXIN3
RXIN4
RXIN5
RXIN6
RXIN7
RXIN8
DGND
DVDD
RXOUT
DGND
RXIN1A
RXIN2A
RXIN3A
VREF
AGND
AVDD
ADINL
ADINR
DGND
DVDD
DSTATE
INTB
SO
SI
SCK
CSB
XMODE
DVDD
DGND
ADC data II C bit info
2ch data II DSD II S/PDIF
LR clock II DSD II S/PDIF
Bit clock
Master clock
5,6/6ch data
3,4/6ch data
1,2/6ch data II DSD
2ch data II DSD
II Non-PCM
II Data mute
II Error
LR clock II DSD
LR clock II DSD
II 7,8/8ch data
Bit clock
Bit clock
II 5,6/8ch data
Master clock
Master clock
MUX
15.3
MUX
(4x5):4
MUX
(4x6):4
DIR
Error
MPIN4 (Error)
MPIN5 (Data mute)
MPIN6 (Non-PCM)
Output
Data
Level
Detector
Micro
Controller
interface
Oscillation
Amplifier
Power-on
Reset
Data mute
C bit info
Clock & data
Non. PCM
S/PDIF
S/PDIF
ADC
Stereo
ADC
II 3,4/8ch data
II 1,2/8ch data
Group: C (Input)
Group: B (Input)
Group: A (Input)
II S/PDIF
II S/PDIF
Group: C (output)
ADC
DIR Group: A
Group: D
Group: C
Group: B
LPF
PGND
MCKIN
BCKIN
LRCKIN
DATAIN
MPIN1
MPIN2
MPIN3
MPIN4
MPIN5
MPIN6
MCKOUT
BCKOUT
LRCKOUT
DATAOUT
DGND
DVDD
MPOUT1
MPOUT2
MPOUT3
MPOUT4
ERRF
MUTEB
NPCMF
MPIO1
MPIO2
MPIO3
MPIO4
XMCK
XOUT
XIN
Group: C (Input)
Group: D (Input)
64
63
62
61
60
59
58
57
56
55
54
53
52
51
50
49
48
47
46
45
44
43
42
41
40
39
38
37
36
35
34
33
32
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
PGA
PGA
ATT
Group: B
Group: C
Group: D
Group: A
DIR
Group: B
Group: C
Group: D
Group: A
ADC
ADC data
Group: B data
Group: C data
Group: D data
Group: A data
DIR data
IN1 OUT3 IN2 GND
1
2
3
4
8
7
6
5
VCC OUT1 IN3 OUT2
STR-DH740
47
IC2112  TC7WH157FK (DIGITAL BOARD (2/7))
IC3002  MFI341S2162 (DIGITAL BOARD (5/7))
1
NC
MODE1
3
NC
4
RESET
5
VCC
6
NC
7
NC
8
NC
9
NC
10
NC
2
20
19
18
17
16
15
14
13
12
11
NC
NC
NC
NC
NC
NC
MODE0
12C_SDA
12C_SCL
VSS
System control
Security logic
RNG
WDT
FMU
Voltage monitoring circuit
HB/300H CPU
I/O port
ROM (112 kbytes)
Internal data bus
RAM (4 kbytes)
EEPROM (16 kbytes + 2 kbytes)
Interval timer 1
Interval timer 2
Modular multiplication
coprocessor
On-chip
oscillator
Power-on
reset circuit
Internal address bus
Register
(612 bytes)
IC2111  TC74VHC393FT (ELK) (DIGITAL BOARD (1/7))
14
13
12
11
10
9
8
1
2
3
4
5
6
7
Q
A
Q
B
Q
C
Q
D
A
CLEAR
Q
A
Q
B
Q
C
Q
D
A
CLEAR
RDA
CKA
Q1A
Q2A
Q3A
Q4A
GND
Q4B
Q3B
Q2B
RDB
Q1B
CKB
VCC
SELECT
11
6
STROBE
11
7
A 1
2
3
A
B
Y
5
Y
B
GND 4
VCC
8
Y
EN G
Y
STR-DH740
48
IC4101  TPS2553DBVR (DIGITAL BOARD (7/7))
IC4100  BU94502AMUV (DIGITAL BOARD (7/7))
1
DVSSIO
2
RESETX
3
TMODE
4
KEY_COL1/IRPTO
5
KEY_COL2/SEARCH
6
KEY_COL3/MCHNG
7
KEY_ROW1/BUSY
8
KEY_ROW2/SCL
9
KEY_ROW3/SDA
10
DVDD_M
30
AMUTE
29
DVDDIO
28
LED_REPEAT/MCLK
27
LED_PUSB/DATA
26
LED_PSD/BCK
25
LED_PLAY/LRCK/SPDIF
24
LED_ERROR/CLK24MI
23
REXTI
22
USBDP
21
USBDM
11
AVSSC
12
AVDDC
13
SEL_SLAVE
14
SEL_COD/TEST3
15
TEST2
16
XOUT_PLL
17
XIN_PLL
18
TEST1
19
DVDDIO
20
DVSSIO
40
DAVSS
39
RDACO
38
VCDACO
37
LDACO
36
DAVDD 35
SD_CON
34
SD_DO
33
SD_CLK
32
SD_DI
31
SD_CS
Audio
DAC
SD Card
Controller
FAT
File system
System
Controller
LDO
PLL
(Oscillator)
Sound
Effecter
MP3/WMA
/AAC
Decoder
USB
Controller
LED Driver
GND 2
EN 3
IN 1
4 FAULT
5 ILLM
6 OUT
CHARGE
PUMP
UNDERVOLTAGE
LOCKOUT
THERMAL
SENSE
CURRENT
LIMIT
4-ms
DEGLITCH
8-ms
DEGLITCH
CURRENT
SENSE
DRIVER
+
–
REVERSE VOLTAGE
COMPARATOR
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