Schematic Diagram - Bias Board - Sony STR-DA3200ES Service Manual

6-44. SCHEMATIC DIAGRAM – BIAS Board –
R1771
CNP1751 3.3k
7P
BIAS+
RV1751
220
BIAS+
C1771
BIAS-
47 R1772
25V 1k
BIAS-
+PTRE
-PTRE
(Page 73)
SPOUT
CNP1752
2P
FOR
ADJUSTMEMT
R1721
CNP1701 3.3k
7P
BIAS+
RV1701
220
BIAS+
C1721
47
BIAS-
25V R1722
1k
BIAS-
+PTRE
-PTRE
SPOUT
(Page 73)
CNP1702
2P
FOR
ADJUSTMEMT
R1571
CNP1551
1P
RV1551
BIAS+
220
BIAS+
C1571
47
BIAS-
25V R1572
1k
BIAS-
+PTRE
-PTRE
SPOUT
(Page 73)
CNP1552
2P
FOR
ADJUSTMEMT
R1521
CNP1501 3.3k
7P
BIAS+
RV1501
220
BIAS+
C1521
47
BIAS-
25V R1522
1k
BIAS-
+PTRE
-PTRE
(Page 73)
SPOUT
CNP1502
2P
FOR
ADJUSTMEMT
STR-DA3200ES/DG1000
Q1772,1773
CURRENT DETECT
Q1772
2SA1038S
C1772 R1781 R1786
220p 47k 470k
Q1771
2SC4495 R1775 Q1773 R1777 R1778 R1779 C1773
4.7k 2SA1038S 1.8k 15k 20k 0.01
BIAS
R1774
47k
D1771 R1780 R1782
R1776
1SS133T 1.3k 15k
6.2k
R1785
68k
Q1722,1723
CURRENT DETECT
Q1722
2SA1038S
C1722 R1731 R1736
220p 47k 470k
Q1721
2SC4495 R1725 Q1723 R1727 R1728 R1729 C1723
4.7k 2SA1038S 1.8k 15k 20k 0.01
BIAS
R1724
47k
D1721 R1730 R1732
R1726 1SS133T 1.3k 15k
6.2k
R1735
68k
Q1572,1573
CURRENT DETECT
3.3k
Q1572
2SA1038S
C1572 R1581 R1586
220p 47k 470k
Q1571
2SC4495 R1575 Q1573 R1577 R1578 R1579 C1573
4.7k 2SA1038S 1.8k 15k 20k 0.01
BIAS
R1574
47k
D1571 R1580 R1582
R1576 1SS133T 1.3k 15k
6.2k
R1585
68k
Q1522,1523
CURRENT DETECT
Q1522
2SA1038S
C1522
220p
Q1521
2SC4495 R1525 Q1523 R1527 R1528 R1529 C1523
4.7k 2SA1038S 1.8k 15k 20k 0.01
BIAS
R1524
47k
D1521 R1530 R1532
R1526 1SS133T 1.3k 15k
6.2k
R1535
68k
C1905
R1911
22
D1904 22k
50V
1SS133T
D1903
Q1774 R1783 1SS133T
2SC1740S 47k
Q1904-1906
2SC1841
CURRENT
LEVEL DETECT R1912
D1772 DETECT R1784 10k
1SS133T 22k
C1774
2SA1038S
10
50V
R1913
10k 1SS133T
C1906 Q1904
470 2SC1815
6.3V
Q1724 R1733
2SC1740S 47k
CURRENT
D1722 DETECT R1734
1SS133T 22k
C1824
10
50V
C1724
10
50V
R1834 Q1824
22k 2SC1740S 1SS133T
CURRENT
R1833 DETECT
47k
R1836
470k
R1831
47k
Q1574 R1583
2SC1740S 47k
CURRENT
D1572 DETECT R1584
1SS133T 22k
C1874
10
R1884
C1574 50V
22k
10
50V
R1883 Q1874
47k 2SC1740S 1SS133T
CURRENT
R1886 DETECT
470k
R1881
47k
R1531
47k
R1536
470k
Q1524 R1533
2SC1740S 47k
CURRENT
D1522 DETECT R1534
1SS133T 22k
C1624
10
R1634
C1524 50V
22k
10
50V
R1633
47k Q1624 1SS133T
2SC1740S
CURRENT
R1636
470k DETECT
R1631
47k
75 75
TEMPERATURE SENSOR
R1910 C1913
1k 1
O
G
IC1905 I
LM61CIZ
C1907
Q1905 47p
LIMITTER C1910
R1909 1
IC1901
10k
NJM4565D
R1919 R1917
10k 470k Q1908
Q1906 DTC124ESA
C1908
47p
D1902 R1916
12k
R1918 D1905
47k 1SS133T
D1901
1SS133T
Q1907,1908 Q1907
2SA1038S
LIMITTER DETECT R1915
Q1822,1823
CURRENT DETECT
R1835 Q1823
68k 2SA1038S
R1832 R1830 D1821 R1826
15k C1823 1.3k 1SS133T 6.2k
0.01
Q1821
D1822 R1829 R1828 R1827 R1825 2SC4495
20k 15k 1.8k 4.7k
BIAS
C1822
220p
Q1822
2SA1038S
Q1872,1873
CURRENT DETECT
R1885
68k Q1873
2SA1038S
R1876
R1882 R1880 D1871 6.2k
15k C1873 1.3k 1SS133T
0.01
D1872 R1879 R1878 R1877 R1875 Q1871
20k 15k 1.8k 4.7k 2SC4495
BIAS
C1872
220p
Q1872
2SA1038S
Q1622,1623
CURRENT DETECT
R1635 Q1623
68k 2SA1038S
R1632 R1630 D1621 R1626
15k 1.3k 1SS133T 6.2k
Q1621
D1622 C1623 R1629 R1628 R1627 R1625 2SC4495
0.01 20k 15k 1.8k 4.7k
BIAS
C1622
Q1622 220p
2SA1038S
STR-DA3200ES/DG1000
TEMP2
TEMP1
4/8
-B
GND
GND
+15V
-15V
D1906 (Page 71)
PROTECT
MTZJ-T-72-6.2
LIMITER
C1909
0.1
R1928 CN1902
6.8k 10P
I
G
O
TEMPERATURE SENSOR
IC1903
LM61CIZ
CNP1802
2P
R1914 22k
FOR
22k
ADJUSTMEMT
CNP1801
7P
SPOUT
-PTRE
+PTRE
BIAS-
BIAS-
R1824 R1822
C1821
47k 1k
47 BIAS+
25V
BIAS+
RV1801
(Page 73)
220
R1821
3.3k CNP1852
2P
FOR
ADJUSTMEMT
CNP1851
7P
SPOUT
-PTRE
+PTRE
BIAS-
BIAS-
R1874 R1872
C1871
47k 1k
47 BIAS+
25V
BIAS+
RV1851
(Page 73)
220
R1871
3.3k CNP1602
2P
FOR
ADJUSTMEMT
CNP1601
7P
SPOUT
-PTRE
+PTRE
BIAS-
BIAS-
C1621
R1624 R1622
47 BIAS+
47k 1k
25V
BIAS+
RV1601
(Page 73)
220
R1621
3.3k