Power Amplifier Section - Integra DTR-8.2 Service Manual

A
QQ
3 7 63 1515 0
SCHEMATIC DIAGRAM 6-1

Power amplifier section 2

N A A F - 7 2 5 0
1
S L
- B 1
+ B 1
E
E
E
2
S R
E
E
E
TE
L 13942296513
3
S B L
E
E
E
4
S B R
E
E
E
www
5
.
http://www.xiaoyu163.com
B
Q 6 0 3 3
1 . 2 V
Q 6 0 0 3
R 6 0 1 3
0 . 6 V
5 . 6 K
0 . 3 V
R 6 0 2 3
3 . 9 K R 6 0 6 3
- 0 . 3 V 3 . 3 K
N F
R 6 0 3 3
C 6 0 0 3
0 . 6 V
1 K
1 0 2 J
N F
R 6 0 7 3
B +
R 6 1 1 3
1 8 0
Q 6 0 2 3
B -
1 0 K
( 1 / 2 W )
C 6 0 2 3
R 6 0 4 3
4 7 / 5 0
1 K
R 6 1 3 3
R 6 0 5 3 Q 6 0 1 3
8 . 2
2 . 7 K
( 1 W )
Q 6 0 4 3
- 1 . 2 V
C 6 0 3 3
- 5 6 . 5 V
4 7 3 J / 1 0 0
Q 6 0 3 4
Q 6 0 0 4 1 . 2 V
R 6 0 1 4
0 . 6 V
5 . 6 K
0 . 3 V
R 6 0 2 4
3 . 9 K R 6 0 6 4
- 0 . 3 V 3 . 3 K
N F
R 6 0 3 4
C 6 0 0 4
0 . 6 V
1 K
1 0 2 J
N F
R 6 0 7 4
B +
R 6 1 1 4
1 8 0
Q 6 0 2 4
B -
1 0 K
( 1 / 2 W )
C 6 0 2 4
R 6 0 4 4
4 7 / 5 0
1 K
R 6 1 3 4
R 6 0 5 4
Q 6 0 1 4
8 . 2
2 . 7 K
( 1 W )
Q 6 0 4 4
- 1 . 2 V
C 6 0 3 4
- 5 6 . 5 V
4 7 3 J / 1 0 0
Q 6 0 3 5
Q 6 0 0 5 1 . 2 V
R 6 0 1 5
0 . 6 V
5 . 6 K
0 . 3 V
R 6 0 2 5
3 . 9 K R 6 0 6 5
- 0 . 3 V 3 . 3 K
N F R 6 0 3 5
C 6 0 0 5
0 . 6 V
1 K 1 0 2 J
N F
R 6 0 7 5
B +
R 6 1 1 5
Q 6 0 2 5 1 8 0
B -
1 0 K
( 1 / 2 W )
C 6 0 2 5
R 6 0 4 5
4 7 / 5 0
1 K
R 6 1 3 5
R 6 0 5 5
Q 6 0 1 5
8 . 2
2 . 7 K
( 1 W )
Q 6 0 4 5
- 1 . 2 V
C 6 0 3 5
- 5 6 . 5 V
4 7 3 J / 1 0 0
Q 6 0 3 6
1 . 2 V
Q 6 0 0 6
R 6 0 1 6
0 . 6 V
5 . 6 K
0 . 3 V
R 6 0 2 6
3 . 9 K R 6 0 6 6
- 0 . 3 V 3 . 3 K
N F
R 6 0 3 6 C 6 0 0 6
0 . 6 V
1 K
1 0 2 J
N F
R 6 0 7 6
B +
R 6 1 1 6
1 8 0
Q 6 0 2 6
B - 1 0 K
( 1 / 2 W )
C 6 0 2 6
R 6 0 4 6
4 7 / 5 0
1 K
R 6 1 3 6
R 6 0 5 6 Q 6 0 1 6
8 . 2
x ao
2 . 7 K
y ( 1 W )
Q 6 0 4 6
- 1 . 2 V
C 6 0 3 6
- 5 6 . 5 V
i
4 7 3 J / 1 0 0
http://www.xiaoyu163.com
8
5 6 . 5 V R 6 1 6 3
R 6 0 8 3
3 3 K
Q 6 0 5 3
2 . 2
C 6 5 1 2
( 1 / 2 W )
4 . 7 / 1 0 0
5 6 . 5 V
Q 6 0 7 3
R 6 1 4 3
0 . 6 V
P 6 0 8 3
2 2 K
0 V
I D +
R 6 5 1 2
I D - R 6 1 0 3
0 . 2 2
0 . 2 2
( 1 / 2 W )
X 2 ( 5 W )
R 6 1 5 3
4 . 7 K
0 V
R 6 0 9 3
C 6 0 4 3
2 . 2
R 6 5 2 2
1 0 3 Z
0 . 2 2
R 6 1 9 3
( 1 / 2 W ) ( 1 / 2 W )
4 7 K
Q 6 0 6 3 R 6 2 0 3 4 7 K
R 6 2 1 3
D 6 0 0 3 4 7 K
5 6 . 5 V
R 6 1 6 4
R 6 0 8 4
3 3 K
Q 6 0 5 4
2 . 2
R 6 5 1 3
( 1 / 2 W )
5 6 . 5 V 0 . 2 2
Q 6 0 7 4
R 6 1 4 4 ( 1 / 2 W )
0 . 6 V
P 6 0 8 4
2 2 K
0 V
I D +
I D - R 6 1 0 4
0 . 2 2
X 2 ( 5 W )
R 6 1 5 4
4 . 7 K
0 V
R 6 0 9 4
C 6 0 4 4
2 . 2
Q Q
1 0 3 Z R 6 5 2 3
3 6 7 1 3
R 6 1 9 4 0 . 2 2
( 1 / 2 W )
4 7 K ( 1 / 2 W )
Q 6 0 6 4 R 6 2 0 4 4 7 K
R 6 2 1 4
D 6 0 0 4 4 7 K
5 6 . 5 V
R 6 1 6 5
R 6 0 8 5
3 3 K
Q 6 0 5 5
2 . 2
( 1 / 2 W ) R 6 5 1 4
5 6 . 5 V 0 . 2 2
Q 6 0 7 5
R 6 1 4 5
0 . 6 V ( 1 / 2 W )
P 6 0 8 5
2 2 K
0 V
I D +
I D - R 6 1 0 5
0 . 2 2
X 2 ( 5 W )
R 6 1 5 5
4 . 7 K
R 6 0 9 5 0 V
C 6 0 4 5
2 . 2
1 0 3 Z
R 6 1 9 5
( 1 / 2 W )
4 7 K
Q 6 0 6 5 R 6 2 0 5 4 7 K
R 6 2 1 5
D 6 0 0 5 4 7 K
5 6 . 5 V R 6 1 6 6
R 6 0 8 6
3 3 K
Q 6 0 5 6
2 . 2
( 1 / 2 W )
5 6 . 5 V
Q 6 0 7 6
R 6 1 4 6
0 . 6 V
P 6 0 8 6
2 2 K
0 V
I D +
I D - R 6 1 0 6
0 . 2 2
X 2 ( 5 W )
R 6 1 5 6
4 . 7 K
0 V
R 6 0 9 6
C 6 0 4 6
2 . 2
1 0 3 Z
R 6 1 9 6
( 1 / 2 W )
4 7 K
u163
Q 6 0 6 6 R 6 2 0 6 4 7 K
R 6 2 1 6
D 6 0 0 6 4 7 K
.
C
2 9 9 4 2 8
U21
C 6 5 2 2
4 . 7 / 1 0 0
1 5 0 5 8 2 9 9 4
m
co
DTR-8.2
D
9 9
- B 1
+ B 1
E
E
E
E
E
E
2 8 9 9
E
E
E