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Schematic Diagram - Aclass Board - Sony STR DA2400ES - 7.1 Channel Home Theater AV Receiver Service Manual

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6-24. SCHEMATIC DIAGRAM - ACLASS Board -

1
2
3
A
ACLASS BOARD
B
CN711
13P
JL1660
-B_ACLASS
13
-B_ACLASS
12
JL1661
+B_ACLASS
11
+B_ACLASS
10
JL1659
GND_ACLASS
9
AD
GND_ACLASS
8
GND_ACLASS
7
C
MAIN
JL1657
BOARD
TEMP 4/8
6
(3/3)
JL1656
CN401
NF_C
5
JL1655
(Page
-V_C
4
JL1654
49)
+V_C
3
JL1694
AUDIO_GND
2
JL1653
C_IN
1
D
C503
10 50V (DA2400ES: AEP, ECE, UK)
10 100V (DA2400ES: US/DG920)
CN511
13P
E
JL1672
NF_L
13
JL1671
-V_L
12
JL1670
+V_L
11
JL1669
+V_SL
10
JL1668
-V_SL
9
AE
JL1667
NF_SL
8
JL1695
AUDIO_GND
7
F
MAIN
JL1665
BOARD
R_IN
6
(3/3)
AUDIO_GND
5
CN671
(Page
AUDIO_GND
4
49)
JL1666
L_IN
3
JL1696
AUDIO_GND
2
JL1664
4/8
1
G
CN611
13P
H
JL1681
-V_R
13
JL1680
+V_R
12
JL1679
NF_R
11
JL1675
GND
10
JL1674
-7V
9
AF
JL1673
+7V
8
JL1678
NF_SR
7
MAIN
JL1677
BOARD
I
-V_SR
6
(3/3)
JL1676
+V_SR
5
CN601
(Page
AUDIO_GND
4
JL1683
49)
SR_IN
3
JL1697
AUDIO_GND
2
JL1682
SL_IN
1
J
K
STR-DA2400ES/DG920
• See Page 76 for IC Block Diagrams.
4
5
6
7
IC700
IC700
POWER AMP
UPC2581V-S
IC B/D
1
2
3
4
5
6
7
8
9
10
11
12
C703
10 50V (DA2400ES: AEP, ECE, UK)
10 100V (DA2400ES: US/DG920)
C714
C713
C703
33p
100p
500V
R1938
R700
10k
10k
C715
3p
C712
500V
100p
R715
R716
C716
68k
2.2k
220
10V
C711
10
50V
R712
68k
R711
1k
IC500
IC500
UPC2581V-S
POWER AMP
IC B/D
1
2
3
4
5
6
7
8
9
10
11
12
R1939
R500
10k
10k
C503
C514
C513
C563
C564
33p
100p
100p
33p
500V
500V
R565
C561
10
50V
R561
1k
68k
R511
C511
1k
10
C545
50V
3p
500V
R516
R566
2.2k
2.2k
C515
3p
C516
500V
C566
C512
R562
220
220
100p
68k
10V
10V
IC600
IC600
UPC2581V-S
POWER AMP
IC B/D
1
2
3
4
5
6
7
8
9
10
11
12
R1940
R600
10k
10k
C603
C614
C613
C656
C655
33p
100p
100p
33p
500V
500V
C665
R611
C611
3p
1k
10
500V
50V
R661
R665
C661
1k
68k
10
50V
R616
R666
2.2k
2.2k
C616
C615
C666
C612
R662
220
3p
220
100p
68k
10V
500V
10V
8
9
10
13
14
15
R1908
33 2W (DA2400ES: US/DG920)
68 2W (DA2400ES: AEP, ECE, UK)
R1907
R1549
100k
-44.9
-44.9
100k
-44.4
-44.1
Q1903
Q1902
2SD774-T-34
2SD774-T-34
LIMITER SWITCH
LIMITER SWITCH
C733
-44.9
-44.9
22
DTC124EKA-T146
100V
R1943
R1942
10k
10k
R1934
R1905
R1906
R1904
3.3k
330
10k
10k
1W
2W
C732
22
100V
(DA2400ES: AEP, ECE, UK)
Q1907
2SA1163L-TE85L
6.9
R1915
22k
6.3
R1937
2.2k
7
13
14
15
R1914
22k
IC1901
Q1907, 1908
OVER LOAD DETECT
LIMITER CONTROL
IC1901
NJM4565M(TE2)
Q1908
DTC124EKA-T146
0
5.9
D1905
MA2J1110GLS0
IC400
IC400
UPC2581V-S
POWER AMP
IC B/D
13
14
15
1
2
3
4
5
6
7
8
9
10
R1941
R400
10k
10k
C403
C414
C413
C463
33p
100p
100p
500V
C415
C465
C403, 603
3p
3p
10 50V (DA2400ES: AEP, ECE, UK)
500V
500V
10 100V (DA2400ES: US/DG920)
R415
R465
68k
68k
R416
R466
2.2k
2.2k
C416
C466
220
220
10V
10V
51
51
11
12
13
14
Q1901, 1914
R1921
20k (DA2400ES: AEP, ECE, UK)
LIMITER CONTROL
22k (DA2400ES: US/DG920)
-43.5
R1925
R1901
24k
Q1901
22k
6.9
2SA1163L-TE85L
7
Q1914
R1902
22k
R1921
6.9
IC1902
0
R1930
R1933
10k
47k
R1910
LIMITER
330k
1.7
D1907
D1911
MA2J1110GLS0
MA2J1110GLS0
0.8
4.3
C1907
C1916
C1915
0.1
0.1
0.1
5
VDD
NJM4565M(TE2)
D1903
MA2J1110GLS0
R1916
12k
D1901
MA2J1110GLS0
R1918
47k
D1912
8
7
6
5
1SS367-T3SONY
1
2
3
4
R1932
10k
0
DTC124EKA-T146
0
R1919
10k
R1917
470k
3.3
Q1913
DTC124EKA-T146
R1922
3.3k
11
12
13
14
15
0
DTC143TKA-T146
C461
C464
10
R461
33p
50V
1k
500V
R411
C411
1k
10
50V
C462
100p
STR-DA2400ES/DG920
15
16
17
18
R1924
10k
R1927
10k
CN1909
5P
JL1649
1
+7V
AH
2
NC
JL1650
VSS
3
GND
R1931
1k
JL1651
LIMITER
BOARD
1.3
4
TEMP1
R1920
1k
JL1652
CN1902
5
TEMP2
(Page
0.7
61)
4.3
IC1904
IC1902
+5V REGULATOR
C1911
220
R1909
10V
33k
2
3
1
C1912
0.1
D1902
MA2J1110GLS0
3.8
C1914
100
16V
Q1912
Q1912, 1913
LIMITER
DETECT
3.8
0
Q1911
DTC124EKA-T146
0
Q1910, 1911
LIMITER
DETECT
Q1910
CN411
13P
JL1693
1
SBL_IN
JL1698
2
AUDIO_GND
JL1692
3
SBR_IN
JL1684
4
AUDIO_GND
JL1686
5
+V_SBR
AG
JL1687
6
-V_SBR
JL1688
7
NF_SBR
MAIN
JL1689
BOARD
8
-V_SBL
(3/3)
JL1690
9
+V_SBL
CN501
JL1691
(Page
10
NF_SBL
JL1685
11
LIM_CONTROL
49)
JL1663
12
4/8_RY
JL1662
13
PROTECTOR

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