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

STR-KG800
6-7.

SCHEMATIC DIAGRAM - MAIN Board (1/3) -

1 2
MAIN BOARD (1/3)
A
1
1
B MAIN
BOARD
(2/3) 2
(Page
3
23)
C
D
Q661, 662
CURRENT
E
F
G
H
I
J
K
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
C675 Q670
47k
0.01 2SC3052EF-T1-LEF
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
DETECT 0 DETECT 0
R663
0.22
0 0
-43. 8
C661 C761
220p 220p
Q662
2SA1163L-TE85L
R661 4.7k R761 4.7k
R662 6.2k
Q653 Q654 Q753
MN2488-OPY-MK MP1620-OPY-MK MN2488-OPY-MK
BOOSTER BOOSTER BOOSTER
E C B B C E E
3 2 1 1 2 3 3
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
C657
Q651
Q751
47
2SA1115TP-EF
25V 2SA1115TP-EF
JR340 0
IC B/D
IC600
POWER AMP IC600
uPC2581V-S
15 14 13 12 11 10 9 8 7 6 5 4 3 2 1
C653 C654
100p
33p
500V
R654
C644
R653 2.2k
R651
1k
C656 C651 R652 C652 R602 R600
220
10 68k 100p 0 0
10V 50V
7 8 9 10
C771
10 R729 R730
10
50V 47k
0 0
4.1 4.1
D770
MA2J1110GLS0
Q770 C725 Q720
2SC3052EF-T1-LEF 2SC3052EF-T1-LEF
0.01
AF POWER C770 AF POWER
PROTECT 0.01 PROTECT
R725
10k R728
4.7
R764 1.5k R770 22k R714 1.5k
R720
Q711
0
2SA1163L-TE85L
0
Q711, 712
0 CURRENT 0
DETECT 0
R763 R713
0.22 0.22
0
-43. 8
C711 Q712
220p
Q762 2SA1163L-TE85L
2SA1163L-TE85L
R711 4.7k
R762 6.2k R712 6.2k
Q754 Q703 Q704
MP1620-OPY-MK MN2488-OPY-MK MP1620-OPY-MK
BOOSTER BOOSTER BOOSTER
C B B C E E C B B C E
2 1 1 2 3 3 2 1 1 2 3
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
Q752 0.5 Q702
2SC3623ATP-LK 2SC3623ATP-LK
C757
47
-1. 1 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
C655
C753 C754 C704
3p
33p 100p 100p
500V
500V
68k
R605
22k
10
50V
R753 2.2k
R751 R701 1k
1k
C756 C751 R752 C752 C701 R702 C702 C706
100p 10 68k 100p 220
220 10 68k
50V 50V 10V
10V
22 22
11 12 13
R879 R880
10
47k
0
4.1
Q870
2SC3052EF-T1-LEF
AF POWER
PROTECT
R878 R828
4.7 4.7
R864 1.5k
22k R870 22k
Q861
0
2SA1163L-TE85L
0 0
Q861, 862 Q811, 812
CURRENT 0 CURRENT
DETECT 0 DETECT
R863
0.22
0
-43. 8 -43. 8
C861 Q862
220p
2SA1163L-TE85L
R861 4.7k
R862 6.2k
Q853 Q854
MN2488-OPY-MK MP1620-OPY-MK
BOOSTER BOOSTER
E C B B C E
3 2 1 1 2 3
C858 C859
47p 47p
500V 500V
R859 R860
100 100
R857 R858
82k 560
R856 -0. 6
2.2k
Q851, 852
LIMITER -1. 1
0.5 Q852
2SC3623ATP-LK
1.1 -1. 1
Q851
2SA1115TP-EF C857
47
25V
IC800
IC B/D
POWER AMP
IC800
uPC2581V- S
4 3 2 1 15 14 13 12 11 10 9 8 7 6
C703
33p 500V
C705
3p 500V C853 C854 C804
100p 100p
33p
R704 68k 500V
C755
3p 500V
R754 68k
C744
R705
10
22k
50V
C545 C546
10
10
100V
JS712 100V
R853 2.2k
JS711 JS710
R851 R801 1k
1k
C856 C851 R852 C852 C801 C802
R802
10 100p 10 100p
220 68k 68k
10V 50V 50V
14 15 16
13
15
17
2
18
19
MAIN
20
BOARD
(3/3)
21
(Page
22
24)
23
24
R830
R829 47k
10
0
4.1
Q820
2SC3052EF-T1-LEF
AF POWER
PROTECT
R814 1.5k R820 22k
Q811
0
2SA1163L-TE85L
0
0
0
R813
0.22
0
-43. 8
C811 Q812
220p
2SA1163L-TE85L
R811 4.7k
R812 6.2k
Q803 Q804
MN2488-OPY-MK MP1620-OPY-MK
BOOSTER BOOSTER
E C B B C E
3 2 1 1 2 3
C808 C809
47p 47p
500V 500V
R810
R809
100 100
R806 R808
2.2k 560
R807 -0. 6
82k
Q801, 802
LIMITER -1. 1
0.5
Q802
2SC3623ATP-LK
1.1 -1. 1
C807 47 25V
Q801
2SA1115TP-EF
5 4 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)
22k
C844
10
50V
JS810
R803
2.2k
C806
220
10V
(Page
23)
12
11
4
10
9
MAIN
BOARD
6
(2/3)
4