Schematic Diagram - A Class Amp Board (2/2) - Sony STR-DA3300ES Service Manual

6-28. SCHEMATIC DIAGRAM – A CLASS AMP Board (2/2) –
1 2
A CLASS AMP BOARD (2/2)
A
LIMITTER DETECT
B
R1549
100k
C
D
R1907
100k
C1902
E
22
100V
CN1906
12P
C1901
22
-B 12
100V
AGND 11
+B 10
R1903 10
SBLSPOUT
9
S
F
SBL BIAS- 8
SBL BIAS+
7
POWER
SBR SPOUT 6
AMP
BOARD SBR BIAS- 5
CN1904
SBR BIAS+ 4
(Page 57)
C SPOUT 3
C BIAS-
2
C BIAS+ 1
G
1
1
2
A CLASS
AMP
BOARD
(1/2)
(Page 54)
H
I
J
K
STR-DA3300ES/DG1100
3 4 5
∗ R1905
330 2W (DA3300ES:US,CND,AEP,ECE/DG1100)
680 2W (DA3300ES:UK)
Q1902, 1903
C1805
R1807
R1812
100
10k
2.2k
25V
1/2W
Q1902
2SD774-T-34
R1908
C1815
R1905
220 Q1804
5p
∗
2W
500V 2SC2229-OY
R1806
(DA3300ES:UK)
3.3k
R1934
Q1903
10k
2SD774-T-34
1/2W
-1 -2
Q1801-1805
PRE DRIVE
2SC5169-FG
C1808
330
R1805
C1804
25V
680p 180
C1807
7p
500V
Q1805
2SA949-OY
2SA1038S-RSE-TP
Q1803
2SA1038S-RSE-TP
R1804
R1811 R1809 R1803
27k 220 220
100
1/2W
C1611
5p
500V
R1614 C1603
100k 100p
1/2W
Q1601-1605
PRE DRIVE
R1607
C1605
R1612 2.2k
100
10k
25V
1/2W
Q1604
2SC2229-OY
R1606
3.3k
C1615
5p
500V
-1 -2
Q1601
2SC5169-FG
C1608 C1604
680p R1605
330
50V 180
C1607
25V
7p
500V
Q1605
2SA949-OY
R1611
R1609 R1604
100
27k 220
1/2W
6 7 8
R1813
C1810
3.9k C1911
220
R1924
1/3W 10
16V
10k
16V
C1803
100p
4 3 2 1
5 6 7 8
R1927
10k
Q1801
R1925
24k
R1910 R1921
330k 20k
C1802
R1802
2
100k 100p
O G
1 I 3
C1801
IC1904 PQ050ES1MXPQ
4.7
Q1802
50V
R1906 Q1901
22k LIMITTER DETECT
C1861
5p
500V
R1864
100k
1/2W
C1610 R1613
220 3.9k
16V
1/3W
C1855
R1857
100
2.2k
25V
R1862
10k
1/2W
Q1854
2SC2229-OY
C1858
R1602
C1865
100k 330
5p
25V 500V
R1856
C1601
3.3k
4.7 C1602
100p
50V
C1857
7p
500V
C1854
R1601
680p
1k
Q1855
2SA949-OY
Q1602
2SA1038S-RSE-TP
Q1853
2SA1038S-RSE-TP
R1859
R1603 R1861 R1854
220 100 27k 220
1/2W
55 55
9 10 11 12
Q1910, 1911
Q1911
LIMITTER DETECT
DTC124ESA-TP
D1902
Q1910
1SS133T-72
DTC143TSA-TP
R1909
D1903
1SS133T-72
33k
Q1912
R1922
DTC124ESA-TP
3.3k
Q1912, 1913
LIMITTER DETECT
Q1913
IC1902
DTC124ESA-TP
R1932
LIMITTER
10k
C1912
0.1
IC1904
+5V REGULATOR
Q1901
R1933 (DA3300ES:UK)
2SA1038S-RSE-TP
47k
R1931
1k
R1930
10k
R1936
10
R1902
R1901
22k
22k
Q1914
DTC124ESA-TP
INVERTER
R1937
2.2k
C1860
R1863
220
3.9k
16V
1/3W
C1853
R1852
100p
100k
R1801
1k
C1852
100p
C1851
4.7
50V
-1 -2
R1851
Q1851
1k
2SC5169-FG
R1855
Q1851-1855
180
PRE DRIVE
Q1852
2SA1038S-RSE-TP
R1853
220
STR-DA3300ES/DG1100
Ver. 1.2
13 14
R1904
22k
CN1908
8P
1 4/8
2 -B
3 GND
P
4 GND
5 +7V
BIAS
BOARD
6 -7V
CN1911
7 LIMITER
(Page 63)
8 PROTECT
CN1909
5P
Q
5 TEMP2
4
TEMP1
TEMPERATURE
3
GND
DETECTION
1
+7V BOARD
CN1902
(Page 52)
CN1505
15P
1 PROTECT
2 TEMP 4/8
3 -7V
4 +7V
5 GND
6 4/8
N
7 GND
8 SBL
CONNECTOR 4
BOARD
9 GND
CN1207
10 GND
(Page 51)
11 SBR
12 GND
13 GND
14 C
15 GND