Schematic Diagram - Bias Board - Sony STR-DA6400ES Service Manual

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3 7 6 3 1 5 1 5 0

6-79. 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
T E
L 1 3 9 4 2 2 9 6 5 1 3
R1774
47k
R1771
R1772
3.3k
1k
E
RV1751
220
BIAS ALIGNMENT
F
CN1705
G
14P
H
BR
w w w
PROTECTOR (SURR)
BOARD
CN1704
(Page 124)
STR-DA6400ES
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
R1572
R1721 R1722 R1571 R1521
1k 3.3k 1k
3.3k 3.3k
RV1701 RV1501
RV1551
220 220
BIAS ALIGNMENT BIAS ALIGNMENT BIAS ALIGNMENT
CN1512
10P
BS
PROTECTOR (F-C)
BOARD
CN1501
x a o
(Page 123)
y
. i
http://www.xiaoyu163.com
6 7
Q1905
2SC1841TP-PAFAEA
-60
-59.9
C1905
R1911
22
22k
50V
C1621 C1871
C1521 47 47
47
25V 25V
25V
Q1621 Q1871
2SC4495 2SC4495
BIAS
BIAS
1.1 1.1
-1 -1 -1
-0.5
-0.5
Q Q
3 7 6
R1524 R1624
R1874
47k 47k 47k
R1522 R1621 R1871 R1872
R1622
1k 3.3k 1k
1k 3.3k
RV1601 RV1851
220 220 220
BIAS ALIGNMENT BIAS ALIGNMENT
CN1513
CN1803
8P 14P
BT
PROTECTOR (F-C)
BOARD
CN1503
u 1 6 3
(Page 123)
107 107
2 4
8 9 9
10
8 9
C1907
47p
R1923
1k
NJM4565D
2.1
-13.5
R1916
15
12k
VDD
C1821
47 IC1901
25V
LIMITTER
Q1821
2SC4495
BIAS
1.1
-1
-0.5
3 1 5 1 5 0 8 9
R1824
47k
R1821 R1822
3.3k 1k
RV1801
220
15
BIAS ALIGNMENT
14.3
Q1907
14.9
2SA1038S-RSE-TP
CN1910
4P
BU AH
m
PROTECTOR (SB) A-CLASS AMP BOARD
BOARD (1/2)
CN1801 CN1907
c o
(Page 124)
(Page 70)
.
STR-DA6400ES
2
8 9 9
11 12 13
R1919
R1918
IC1901
47k 10k
-14.9
VSS
-9.3
-13.5
R1917
14.2
470K
C1908
47p
D1905
1SS133T-72
2 4 9 8 2 9 9
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 71)