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Schematic Diagram - Bias Board - Sony STR-DA5400ES Service Manual

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6-66. SCHEMATIC DIAGRAM - BIAS Board -

1
2
BIAS BOARD
A
B
Q1904
2SC1815GR-TPE2
3.3
0
C
C1771
47
25V
Q1771
2SC4495
BIAS
1.1
-1
D
-0.5
R1774
47k
R1771
R1772
3.3k
1k
E
RV1751
220
BIAS ALIGNMENT
F
CN1705
G
14P
H
BR
PROTECTOR (SURR)
BOARD
CN1704
(Page 96)
STR-DA5400ES
3
4
5
D1909
D1908
1SS133T-72
1SS133T-72
R1929
10k
3.1
Q1906
2SA1038S-RSE-TP
R1912
10k
-59.5
D1910
1SS133T-72
0
C1906
Q1904-1906
R1913
470
LEVEL DETECT
10k
6.3V
D1904
1SS133T-72
C1721
C1571
47
47
25V
25V
Q1721
Q1571
Q1521
2SC4495
2SC4495
2SC4495
BIAS
BIAS
BIAS
1.1
1.1
1.1
-1
-1
-0.5
-0.5
-0.5
R1724
R1574
47k
47k
R1722
R1572
R1721
R1571
R1521
1k
3.3k
1k
3.3k
3.3k
RV1701
RV1551
RV1501
220
220
BIAS ALIGNMENT
BIAS ALIGNMENT
BIAS ALIGNMENT
CN1512
10P
BS
PROTECTOR (F-C)
BOARD
CN1501
(Page 95)
6
7
Q1905
2SC1841TP-PAFAEA
-60
-59.9
C1905
R1911
22
22k
50V
C1871
C1621
C1521
47
47
47
25V
25V
25V
Q1871
Q1621
2SC4495
2SC4495
BIAS
BIAS
1.1
1.1
-1
-1
-1
-0.5
-0.5
R1624
R1524
R1874
47k
47k
47k
R1872
R1522
R1621
R1871
R1622
1k
3.3k
3.3k
1k
1k
RV1601
RV1851
220
220
220
BIAS ALIGNMENT
BIAS ALIGNMENT
CN1513
CN1803
8P
14P
BT
PROTECTOR (F-C)
BOARD
CN1503
(Page 95)
93
93
8
9
10
C1907
47p
R1923
1k
IC1901
NJM4565D
2.1
-13.5
R1916
15
12k
VDD
C1821
47
IC1901
25V
LIMITTER
Q1821
2SC4495
BIAS
1.1
-1
-0.5
R1824
47k
R1821
R1822
3.3k
1k
RV1801
220
15
BIAS ALIGNMENT
14.3
Q1907
14.9
2SA1038S-RSE-TP
CN1910
4P
BU
AH
PROTECTOR (SB)
A CLASS AMP BOARD
BOARD
(1/2)
CN1801
CN1907
(Page 96)
(Page 65)
STR-DA5400ES
11
12
13
R1919
R1918
47k
10k
-14.9
VSS
-9.3
-13.5
R1917
14.2
470K
C1908
47p
D1905
1SS133T-72
13.7
R1914
22k
0
Q1908
DTC124ESA-TP
R1915
22k
Q1907, 1908
LIMITTER DETECT
CN1911
8P
AM
A CLASS AMP BOARD
(2/2)
CN1908
(Page 66)

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