Schematic Diagram - Protector (Sb/Surr) Section - Sony STR-D560Z Service Manual

6-45. SCHEMATIC DIAGRAM – PROTECTOR (SB/SURR) Section –
1 2 3
PROTECTOR (SURR) BOARD
A
R1775
C1772
4.7k
220p
B
R1776
6.2k
Q1773
CN1701 2SA1038S-RSE-TP
14P
BIAS+
SR BIAS+ 1
BIAS+
SR BIAS+ 2
BIAS-
C SR BIAS- 3
BIAS-
SR BIAS- 4
SR +PTrE 5
Z
SR -PTrE 6
R1725
SR SPOUT 7
4.7k
POWER BIAS+
SL BIAS+ 8
AMP BIAS+
SL BIAS+ 9
BOARD
BIAS-
CN1703 SL BIAS- 10
R1726
BIAS-
D
(Page SL BIAS- 11
6.2k
2SA1038S-RSE-TP
SL +PTrE 12
65)
SL -PTrE 13
SL SPOUT 14
E
2SA1038S-RSE-TP
Q1722-1724
CURRENT DETECT
F
G
STR-DA4300ES
4 5 6 7
R1781
47k
220k
R1786
R1783 47k
Q1772
2SA1038S-RSE-TP
R1784
22k
Q1772-1774
CURRENT DETECT
R1779
20k
R1777
C1773
1.8k D1772
0.01 1SS133T-72
Q1774
2SC1740S-QRT
R1778
15k
R1780 R1782 C1774
1.5k 10
15k
50V
R1785
68k
C1722
R1731
220p
47k
R1736 220k
R1733 47k
Q1722
R1734
22k
R1727
1.8k
R1729
R1728
15k 20k Q1724
2SC1740S-QRT
Q1723
D1722
C1723
1SS133T-72
0.01
R1732 C1724
R1730
15k 10
1.5k
50V
R1735
68k
8 9 10 11
CN1861
4P
SBR +PTrE 1
SBR -PTrE 2
(FOR ADJUSTMENT)
SBL +PTrE 3
SBL -PTrE 4
CN1801
14P
CN1761
4P +7V 1
1 SR +PTrE GND 2
2 SR -PTrE DC 3
(FOR ADJUSTMENT)
3 SL +PTrE SHORT 4
4 SL -PTrE 4/8 5
AE
LIMT 6
SBR BIAS+ 7
BIAS
SBR BIAS+ 8
CN1704 BOARD
14P
CN1803
SBR BIAS- 9
BIAS+
(Page 71)
1 SR BIAS+ SBR BIAS- 10
BIAS+
2 SR BIAS+ SBL BIAS+ 11
BIAS-
3 SR BIAS- SBL BIAS+ 12
BIAS-
4 SR BIAS- SBL BIAS- 13
BIAS+
5 SL BIAS+ SBL BIAS- 14
AD
BIAS+
6 SL BIAS+
BIAS-
7 SL BIAS-
BIAS- BIAS
8 SL BIAS-
BOARD
9 +7V CN1705
10 GND (Page 71)
11 LIMT
12 4/8
13 SHORT
14 DC
69 69
12 13 14 15
PROTECTOR (SB) BOARD
Q1872-1874
CURRENT DTECT
R1883 47k
R1881
47k
R1879 R1877
20k 1.8k
R1886
R1884
220k
22k
Q1874
2SC1740S-QRT
C1873
D1872
R1878
0.01
1SS133T-72
R1882
R1880
15k
1.5k
C1874
10
50V
R1885
68k
Q1822-1824
CURRENT DTECT
R1831
47k
R1834
22k
R1833
47k
R1829
R1836
20k
220k
C1823
D1822
Q1824
0.01
1SS133T-72
2SC1740S-QRT
C1824 R1832 R1830
10
15k 1.5k
50V
R1835
68k
STR-DA4300ES
16 17 18 19
CN1871
14P
1 SBR BIAS+
2 SBR BIAS+
3 SBR BIAS-
4 SBR BIAS-
5 SBR +PTrE
V
6 SBR -PTrE
7 SBR SPOUT
POWER
8 SBL BIAS+
AMP
9 SBL BIAS+
BOARD
CN1872
10 SBL BIAS-
11 SBL BIAS- (Page
12 SBL +PTrE
R1875 65)
C1872
220p 4.7k 13 SBL -PTrE
14 SBL SPOUT
R1876
Q1872 6.2k
2SA1038S-RSE-TP
15k
Q1873
2SA1038S-RSE-TP
C1822
220p
Q1822
2SA1038S-RSE-TP
R1825 R1826
4.7k 6.2k
R1827
1.8k
R1828
15k
Q1823
2SA1038S-RSE-TP