Schematic Diagram - Main Board (1/3) - Sony STR-KG800 Service Manual

STR-KG800
Q Q
3 7 6 3 1 5 1 5 0
6-7.

SCHEMATIC DIAGRAM - MAIN Board (1/3) -

1 2
MAIN BOARD (1/3)
A
1
1
MAIN
B
BOARD
(2/3)
2
(Page
3
23)
C
D
Q661, 662
CURRENT
DETECT
E
T E
L 1 3 9 4 2 2 9 6 5 1 3
F
G
H
I
J
K
w w w
L
STR-KG800
• See page 46 for IC Block Diagrams.
3 4 5 6
C671
R679 R779
10
10 10
50V
0
4.1
D670
MA2J1110GLS0
R780
Q670
C675 47k
2SC3052EF-T1-LEF 2SC3052EF-T1-LEF
0.01
AF POWER
C670
PROTECT 0.01
R775
10k
R678 R778
4.7 4.7
R675
10k
R664 1.5k R670 22k
Q661 Q761
0 0
2SA1163L-TE85L 2SA1163L-TE85L
0
Q761, 762
0 CURRENT
0 DETECT 0
R663
0.22
0 0
-43. 8
C661 C761
220p Q662 220p
2SA1163L-TE85L
R661 4.7k R761 4.7k
R662 R762
6.2k
Q653 Q654 Q753
MN2488-OPY-MK MP1620-OPY-MK MN2488-OPY-MK
BOOSTER BOOSTER BOOSTER
E C B B C E E C
3 2 1 1 2 3 3 2
C658 C659 C758
47p 47p
47p
500V 500V 500V
R659 R660 R759
100 100 100
R657 R658
82k 560
R656 -0.6
2.2k
Q651, 652 Q751, 752
LIMITER -1.1 LIMITER
0.5 Q652 0.5
2SC3623ATP-LK
1.1 -1. 1 1.1 -1. 1
C657
Q651 Q751
47
2SA1115TP-EF 25V 2SA1115TP-EF
JR340 0
IC B/D
IC600
IC600
POWER AMP
uPC2581V-S
15 14 13 12 11 10 9 8 7 6 5 4 3 2 1
C655
C653 C654
3p
100p
33p
500V
500V
R654
C644
10
50V
R653 2.2k
R651
1k
x a o
C656 C651 R652 C652
R602 R600
y
220 10 68k 100p 0 0
10V
50V
. i
http://www.xiaoyu163.com
7 8 9 10
C771
10 R729 R730
10
50V 47k
0 0
4.1 4.1
D770
MA2J1110GLS0
Q770 Q720
C725
2SC3052EF-T1-LEF
0.01
AF POWER AF POWER
C770
PROTECT 0.01 PROTECT
R725
R728
10k
4.7
R764 1.5k R770 22k R714 1.5k
R720 22k
Q711
0
2SA1163L-TE85L
0 0
Q711, 712
0 CURRENT 0
DETECT 0
R763 R713
0.22 0.22
0
-43. 8 -43. 8
C711 Q712
Q762 220p 2SA1163L-TE85L
2SA1163L-TE85L
R711 4.7k
6.2k R712 6.2k
Q754 Q703 Q704
MP1620-OPY-MK MN2488-OPY-MK MP1620-OPY-MK
BOOSTER BOOSTER BOOSTER
B B C E E C B B C E
1 1 2 3 3 2 1 1 2 3
Q Q
3 7 6
C759 C708 C709
47p 47p 47p
500V 500V 500V
R760 R709 R710
R757 R758 100 100 100
R707 R708
82k 560 560
82k
R756 -0. 6 R706 -0. 6
2.2k
2.2k
Q701, 702
-1. 1 LIMITER -1. 1
0.5
Q752 Q702
2SC3623ATP-LK
2SC3623ATP-LK
C757
47
1.1 -1.1
25V
C707 47 25V
Q701
2SA1115TP-EF
IC B/D
IC700
IC700
POWER AMP
uPC2581V-S
15 14 13 12 11 10 9 8 7 6 5 4 3
C703
33p
C753 C754 C704 3p
33p 100p 100p
500V R704
68k
3p
R754
R605
22k
JS712
R753 2.2k
JS711
R751 R701 1k
1k
u 1 6 3
C756 C751 C752 C701 C702 C706
R752 R702
100p
220 10 68k 100p 10 68k 220
10V 50V 50V 10V
22 22
2 4
8 9 9
11 12 13 14
R879 R880 R829
10
47k
0
4.1
Q870
2SC3052EF-T1-LEF
AF POWER
PROTECT
R878 R828
4.7 4.7
R864 1.5k
R870 22k
Q861
0 0
2SA1163L-TE85L 2SA1163L-TE85L
0
Q861, 862 Q811, 812
CURRENT 0 CURRENT
DETECT 0 R863 DETECT
0.22
0 0
-43. 8
C861 Q862 C811
220p 2SA1163L-TE85L 220p
R861 4.7k R811
R862 6.2k
Q853 Q854
MN2488-OPY-MK MP1620-OPY-MK MN2488-OPY-MK
BOOSTER BOOSTER
E C B B C E
3 2 1 1 2 3
3 1 5 1 5 0 8 9
C858 C859
47p 47p
500V 500V
R859 R860
100 100
R857 R858
82k 560
R856 -0. 6
2.2k
Q851, 852 Q801, 802
LIMITER -1. 1 LIMITER
0.5 Q852
2SC3623ATP-LK
1.1 -1. 1 1.1
Q851
2SA1115TP-EF C857 2SA1115TP-EF
47
25V
IC800
IC B/D
POWER AMP
IC800
uPC2581V- S
2 1 15 14 13 12 11 10 9 8 7 6 5 4
500V
C705
500V C853 C854 C804
100p 100p
33p
68k 500V
C755
500V
68k
C744
R705
10 22k
50V
C545 C546
10 10
100V
100V
R853 2.2k
JS710
m
R803
R851 R801 1k 2.2k
1k
c o
C856 C851 C852 C801 C802 C806
R852 R802
100p 10 100p
220 10 68k 68k 220
50V 50V 10V
10V
.
2
8 9 9
15 16
13
15
17
2
18
19
MAIN
20
BOARD
(3/3)
21
(Page
22
24)
23
24
R830
47k
10
0
4.1
Q820
2SC3052EF-T1-LEF
AF POWER
PROTECT
R814 1.5k R820 22k
Q811
0
0
0
R813
0.22
-43. 8
Q812
2SA1163L-TE85L
4.7k
R812 6.2k
Q803 Q804
MP1620-OPY-MK
BOOSTER BOOSTER
E C B B C E
3 2 1 1 2 3
2 4 9 8 2 9 9
C808 C809
47p 47p
500V 500V
R809 R810
100 100
R806 R808
2.2k 560
R807 -0. 6
82k
-1. 1
0.5
Q802
2SC3623ATP-LK
-1. 1
C807 47 25V
Q801
3 2 1
C803
33p 500V
C805
3p 500V
R804 68k
C855
3p 500V
R854 68k
3
R545
25
1
26
MAIN
27
BOARD
R546
(3/3)
1
R805
(Page 24)
C844 22k
10
50V
JS810
(Page
23)
12
11 4
10
9
MAIN
BOARD
6
(2/3)
4