Sony STR-DN840 Service Manual ▷ View online
STR-DN840
STR-DN840
45
45
5-26. SCHEMATIC DIAGRAM – DCDC Board –
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
17
DCDC BOARD
6
15
10
0 1.6
14 2.6
3.6 15
8
0 0.8
15 2.6
2
15
7
0.8 1.4
15 2.6
3.7 15
8.3
0.8 1.6
15 2.6
1
2
3
4
2
3
4
2
3
4
5
6
7
8
9
3
4
5
6
7
8
9
10
11
11
27k
R1940
1k
R1911
18k
R1944
22k
R1943
0
R1945
C1926
0.01
C1931
0.1
7.5k
R1916
C1916
3300p
1k
R1907
C1944
100
10V
C1948
22
C1975
22
C1954
0.1
0
R1939
27k
R1937
6.8k
R1938
1.8k
R1964
C1952
22
C1973
22
0.1
C1956
C1924
0.01
C1929
0.1
C1914
3300p
1k
R1905
C1934
0.1
7.5k
R1913
C1925
0.01
C1930
0.1
C1915
3300p
7.5k
R1915
1k
R1914
C1927
0.01
C1932
0.1
C1922
2200p
10k
R1919
1k
R1918
W1900
CN941
4P
R3 AC (Yellow)
NC
CENTER
R3 AC (Green)
CL946
F940
3.15A 250V
F941
3.15A 250V
CL941
CL942
C907
0.047
C908
0.047
C902
0.1
CL943
D923
D5SBA60-F
C900
6800 25V
L1908
10uH
L1907
10uH
L1906
10uH
L1901
10uH
L1903
10uH
L1902
10uH
L1904
10uH
0
R1942
22
R1925
C1936
0.1
22
R1927
C1935
0.1
22
R1926
C1937
0.1
22
R1928
25V
C1904
100
25V
C1969
10
C1964
10
C1909
0.1
C1906
100
C1967
10
C1962
10
C1911
0.1
25V
C1905
100
C1966
10
C1961
10
C1910
0.1
25V
C1907
100
C1965
10
C1960
10
C1912
0.1
C1946
100
10V
C1949
22
C1972
22
0.1
C1955
C1945
100
10V
CN1901
11P
NC
1
+6V
+6V
+DCDC_NW
+DCDC_NW
+3.6V
+3.6V
+2V
+2V
+2.5V
+2.5V
+DCDC_NW
+DCDC_NW
+3.6V
+3.6V
+2V
+2V
+2.5V
+2.5V
CL947
10k
R1965
68k
R1946
L1909
10uH
0
R1948
4.7
R1933
C1942
0.001
12k
R1947
C1951
22
C1971
22
0.1
C1957
C1947
100
10V
CL949
CL950
CL909
CL910
CL911
1
2
2
CN901
2P
STBY GND
STBY GND
STBY GND
1
BOOT
2
VIN
3
SW
4
GND
5
FB
6
COMP
7
EN
8
SS
9
1
BOOT
2
VIN
3
SW
4
GND
5
FB
6
COMP
7
EN
8
SS
9
1
BOOT
2
VIN
3
SW
4
GND
5
FB
6
COMP
7
EN
8
SS
9
1
BOOT
2
VIN
3
SW
4
GND
5
FB
6
COMP
7
EN
8
SS
9
IC1904
BD9329AEFJ-BZSE2
+6V REG.
IC1904
IC1902
BD9329AEFJ-BZSE2
+3.6V REG.
IC1902
IC1903
BD9329AEFJ-BZSE2
+2V REG.
IC1903
IC1901
BD9329AEFJ-BZSE2
+DCDC_NW REG.
IC1901
N
POWER
TRANSFORMER
(MAIN)
T901
(Page 47)
O
STANDBY BOARD
CN940
(Page 47)
DIGITAL
BOARD
(3/8)
CN1501
(Page 30)
F
STR-DN840
STR-DN840
46
46
5-27. PRINTED WIRING BOARD – STANDBY Board –
• See page 18 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
C981
C991
IC901
R900
F901
R902
FH901
FH902
T902
RY951
C984
C982
1
4
CN951
13
CN953
R953 R952
R901
R914
R913
D902
1
7
3
CN940
Q900
E
C980
C988
C992
C987
C989
L001
R954
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-
22
(22)
1-887-629-
22
(22)
H
DIGITAL
BOARD
CN1500
(Page 27)
O
DCDC
BOARD
CN901
(Page 44)
T901
POWER
TRANSFORMER
(MAIN)
I
MAIN BOARD
CNP920
(Page 36)
N
DCDC BOARD
CN941
(Page 44)
J
MAIN BOARD
CNP930
(Page 36)
~ AC IN
Note: IC901 on the STANDBY board cannot exchange with
single. When this part on the STANDBY board is damaged,
exchange the entire mounted board.
exchange the entire mounted board.
Ver. 1.1
STR-DN840
STR-DN840
47
47
5-28. SCHEMATIC DIAGRAM – STANDBY Board –
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
17
STANDBY BOARD
3.3
8.6
8
0.8
1
9.3
3.5
0
0.7
0.6
0
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
CL956
CL956
CN951
4P
LIVE
NEUTRAL
NEUTRAL
F901
T3.15AL 250V
(AEP, UK, AUS)
T6.3AL 250V
(MX, TW)
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
10k
R901
10k
R900
4.7k
R902
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
IC901
RT7237ALGSP
1
BOOT
2
VIN
3
SW
4
GND
5 FB
6 COMP
7 EN
8
6 COMP
7 EN
8
9
SS
GND
CL905
C987
0.1
L001
10uH
75k
R952
24k
R953
C980
22
C989
3300p
C992
0.1
R954
15k
C988
22
C991
10
C981
10
R913
4.7
R914
22
D902
BAV70
1
POWER
TRANSFORMER
(SUB)
T902
RY951
5V, TV-8
Q900
2PD601ART
AC OFF DETECT
Q901
2PD601ART
RELAY DRIVER
+3.3V REG. (STBY)
IC901
E
DIGITAL
BOARD
(3/8)
CN1500
(Page 30)
DCDC
BOARD
CN901
(Page 45)
O
~ AC IN
POWER
TRANSFORMER
(MAIN)
T901
K
MAIN BOARD
(2/4)
CNP920
(Page 39)
J
MAIN BOARD
(2/4)
CNP930
(Page 39)
N
DCDC BOARD
CN941
(Page 45)
Note: IC901 on the STANDBY board cannot exchange with
single. When this part on the STANDBY board is damaged,
exchange the entire mounted board.
exchange the entire mounted board.
Ver. 1.1
STR-DN840
STR-DN840
48
48
5-29. PRINTED WIRING BOARD – FRONT JACK PWB Board –
• See page 18 for Circuit Boards Location. •
: Uses unleaded solder.
5-31. PRINTED WIRING BOARD – TUNER1 Board –
• See page 18 for Circuit Boards Location. •
: Uses unleaded solder.
5-30. 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
(8/8)
CN4000
(Page 35)
M
DISPLAY
BOARD
CN101
(Page 43)
DC5V
1A MAX
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)
A
DIGITAL
BOARD
CN4000
(Page 26)
L
DISPLAY BOARD
CN101
(Page 42)
1-887-713-
21
(21)
FRONT
JACK
PWB
BOARD
DC5V 1A MAX
1
A
B
C
D
E
F
G
H
I
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$;,$/
C
DIGITAL BOARD
CN2100
(Page 26)
AM
ANTENNA
L101
1
S1
2
3
6
4
S2
0;86&1'
$(38.7:$86
Ver. 1.1
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