Sony STR-DH740 (serv.man2) Service Manual ▷ View online
STR-DH740
STR-DH740
41
41
5-26. PRINTED WIRING BOARD – STANDBY Board –
• See page 14 for Circuit Boards Location. •
: Uses unleaded solder.
1
A
B
C
D
E
F
G
H
I
J
K
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
IC902
R900
F901
R902
FH901
FH902
T902
RY951
C984
C982
1
4
CN951
13
CN953
R953 R952
R901
R914
R913
C993
C994
D902
1
7
3
CN940
Q900
E
1
7
CN952
CL951
CL956
CL957
CL955
CL952
CL953
CL901
CL900
CL904
CL908
CL905
C983
CL954
R951
D904
D905
D900
C986
D901
C985
D903
R904
R903
Q901
E
POWER
TRANSFORMER
(SUB)
STANDBY BOARD
(COMPONENT SIDE)
STANDBY BOARD
(CONDUCTOR SIDE)
1-887-629-
11
(11)
1-887-629-
11
(11)
A
DIGITAL
BOARD
CN1500
(Page 22)
O
DCDC
BOARD
CN901
(Page 39)
T901
POWER
TRANSFORMER
(MAIN)
I
MAIN BOARD
CNP920
(Page 31)
N
DCDC BOARD
CN941
(Page 39)
J
MAIN BOARD
CNP930
(Page 31)
~ AC IN
STR-DH740
STR-DH740
42
42
5-27. SCHEMATIC DIAGRAM – STANDBY Board –
1
A
B
C
D
E
F
G
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
STANDBY BOARD
0
8
8
0.7
0.6
0
3.3
1
4
4
1
3
5
7
3
5
7
1
3
3
1
3
4
8
6
1
3
4
5
6
3
4
5
6
FH902
C985
0.1
C986
0.1
CL957
CL955
RY951
5V, TV-8
CL956
CN951
4P
LIVE
NEUTRAL
NEUTRAL
F901
T3.15AL 250V
(AEP, UK)
8A 125V
(US, CND)
C982
3300
16V
CN952
7P
220V/240V
TO SUB PT
AC IN AFTER PRIMARY
RY FOR MAIN PT
AC IN FOR SUB PT
120V/127V
AC IN FOR SUB PT
120V/127V
TO SUB PT
CN953
3P
LIVE
NEUTRAL
NEUTRAL
Q900
2PD601ART
6.8k
R901
10k
R900
15k
R902
Q901
2PD601ART
2.2k
R903
C984
1
50V
CL953
D903
DA2J10100L
D900
D901
1SR154-400TE-25
D900 ~ D901,
D904 ~ D905
D905
D904
47k
R904
CL952
CL951
FH901
CL954
C983
0.1
0
R951
CL900
CL901
CL901
CL904
CN940
7P
POWER_Relay
AC_CUT
Stby 3.3V
Stby 3.3V
Stby 3.3V
7
Stby GND
Stby GND
IC902
BD00GC0WEFJ-SE2
1 Vo
2 FB
3 GND
4 NC
2 FB
3 GND
4 NC
5
EN
6
NC
7
NC
8
Vcc
9
GND
CL905
75k
R952
24k
R953
AC OFF DETECT
RELAY DRIVER
C994
0.1
C993
0.1
R913
4.7
R914
22
D902
BAV70
POWER
TRANSFORMER
(SUB)
T902
~ AC IN
POWER
TRANSFORMER
(MAIN)
T901
K
MAIN BOARD
(2/4)
CNP920
(Page 34)
J
MAIN BOARD
(2/4)
CNP930
(Page 34)
N
DCDC BOARD
CN941
(Page 40)
+3.3V REG.
IC902
E
DIGITAL
BOARD
(3/7)
CN1500
(Page 26)
DCDC
BOARD
CN901
(Page 40)
O
STR-DH740
STR-DH740
43
43
5-28. PRINTED WIRING BOARD – FRONT JACK PWB Board –
• See page 14 for Circuit Boards Location. •
: Uses unleaded solder.
5-30. PRINTED WIRING BOARD – TUNER1 Board –
• See page 14 for Circuit Boards Location. •
: Uses unleaded solder.
5-29. SCHEMATIC DIAGRAM – FRONT JACK PWB Board –
1
A
B
C
2
3
4
5
6
FRONT JACK PWB BOARD
(CHASSIS)
E
J100
AUTO CAL MIC
CL175
C151
220
10V
CN106
4P
1
2
3
4
CL173
D134
CES521
D133
CES521
C150
0.1
ET101
CL170
CL172
C152
0.1
0
R190
D126
DZ2J062M0L
0
R191
0
R192
CL171
D129
BAV99-215
D130
BAV99-215
CN105
3P
AGND
MIC_JACK
AGND
CN104
5P
1
GND
2
DP
3
DM
4
VBUS
5
SHIELD BUS
GND
D+
D-
VBUS
1
2
3
H
DIGITAL
BOARD
(7/7)
CN4000
(Page 30)
M
DISPLAY
BOARD
CN101
(Page 38)
DC5V
1A MAX
1
A
B
C
D
E
F
G
H
2
3
4
5
6
7
8
IC101
IC102
1
2
4
3
X101
L101
FL101
I
G
O
2
1
8
9
CN101
1
3
CN103
A001
CN102
CN104
R106
R105
R103
R101
R110
C105
C101
C111
C1
12
D103
C109
C103
R107
C108
C102
C107
L105
D102
D101
C106
JR
JR101
R104
JR
JR102
JR
JR105
R108
R109
JL1
13
JR
JR109
JR
JR112
C1
10
R1
13
JR
JR106
L103
L104
JL107
JL1
17
JL112
JL118
JL102
JL108
JL115
JL106
JL109
JL104
JL103
JL105
JL1
16
JL1
10
JL111
JL114
JL131
JL125
JL124
JL135
JL127
JL132
JL130
JL121
JL133
JL128
JL134
JL129
JL126
JL122
JL123
TUNER1
BOARD
1-885-134-
11
(11)
(CHASSIS)
(CHASSIS)
FM
ȍ&2$;,$/
F
DIGITAL BOARD
CN2100
(Page 22)
AM
ANTENNA
L101
1
S1
2
3
6
4
S2
0;86&1'
$(37:$86
Ver. 1.1
1
A
B
C
D
E
F
2
3
4
5
6
7
8
J100
ET101
1
4
5
6
7
CN106
C151
1
3
CN105
1
5
CN104
R190
CL173
CL171
C152
CL170
CL172
R191
C150
D126
CL175
R192
JR
JR200
JR JR201
D133
D134
D129
D130
AUTO CAL MIC
(CHASSIS)
C
DIGITAL
BOARD
CN4000
(Page 22)
L
DISPLAY BOARD
CN101
(Page 37)
1-887-713-
21
(21)
FRONT
JACK
PWB
BOARD
DC5V 1A MAX
STR-DH740
STR-DH740
44
44
5-31. SCHEMATIC DIAGRAM – TUNER1 Board –
• See page 46 for IC Block Diagrams.
1
A
B
C
D
E
2
3
4
5
6
7
8
9
10
11
TUNER1 BOARD
3.3
5
3.3
3.3
3.3
1.6
1.6
0
0
0
0
3.3
0
0
0
0
0
0
3.3
BPF
FL101
1
C112
1
C111
MC2837
D103
0.1
C109
2.2
C108
100
R107
MC2837
D102
MC2837
D101
32.768kHz
X101
C105
1
600uH
L101
1
2
3
4
6
0
R109
0.047
C106
22
R105
22
R103
100
R106
100
R101
4.7uH
L105
0
R108
R110
10k
GND
1
VDDRF
2
CP2
3
FRF1
4
GNDRF
5
ARF1
6
ARF2
7
IIC/RDSI
8
LA
9
CK
10
VDD 11
GND 12
DA 13
ROUT 14
LOUT 15
IISD 16
CP1 17
X1 18
X2 19
VDD 20
JL112
JL102
JL104
JL106
JL108
JL110
JL103
JL105
JL107
JL109
JL115
JL114
JL111
JL113
0
R104
1
2
3
4
5
6
7
8
9
9P
CN101
IISD (data audio)
VDD
AUDIO L/LRCK
CE (p con)
AUDIO R/BCK
GND
DA (for IIC)
IIC/RDSI
CK (for IIC)
JL118
JL117
JL116
1
2
3
2
3
3P
CN103
AM
AM
FM
AM
FM
10k
R113
CN102
3P
3P
1
CE
2
3
Vout
4
Vdd
MM3404A33URE
IC102
GND
0.047
C107
C110
10
470p
C101
1
C102
1
C103
47nH
L103
220nH
L104
JL121
JL122
JL123
JL124
JL125
JL126
JL127
JL130
JL131
JL132
JL133
JL134
JL135
ARF2
ARF1
+3.3V REG.
IC102
B
DIGITAL
BOARD
(2/7)
CN2100
(Page 25)
FM
&2$;,$/
FM
&2$;,$/
AM
ANTENNA
IC101
RZ5B801-0001E2
(MX, US, CND)
RZ5B801-0002E2
(AEP, TW, AUS)
IC101
FM RECEIVER
IC B/D
IC B/D
CN104
AEP, TW, AUS
MX, US, CND
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