Schematic Diagram - Main Board (1/3) - Sony STR-K7200 - Av Receiver Component Service Manual

STR-K7200
6-7.

SCHEMATIC DIAGRAM - MAIN Board (1/3) -

1 2 3
MAIN BOARD (1/3)
A
1
1
MAIN
B
BOARD
(2/3) 2
(Page
3
23)
R679
10
C
C675
2SC3052EF-T1-LEF
0.01
R678
4.7
R675
10k
Q661
0
D
2SA1163L-TE85L
Q661, 662
CURRENT
DETECT 0
0
C661
220p
R661 4.7k
E R662
Q653
MN2488-OPY-MK
BOOSTER
E C
3 2
F
C658
47p
500V
R659
100
G
Q651, 652
LIMITER
0.5
1.1
Q651
2SA1115TP-EF
H
IC B/D
IC600
POWER AMP
I
15
J
K
C656
220
10V
L
STR-K7200
• See page 48 for IC Block Diagrams.
4 5 6 7
C771
C671
R779 10
10
10
50V
50V
0 0
4.1 4.1
D670 D770
MA2J1110GLS0 MA2J1110GLS0
R780
Q670 Q770
47k
2SC3052EF-T1-LEF
AF POWER C670 AF POWER C770
PROTECT 0.01 PROTECT 0.01
R775
10k
R778
4.7
R664 1.5k R670 22k R764 1.5k R770
Q761
0
2SA1163L-TE85L
0
Q761, 762
0 CURRENT 0
DETECT 0
R663 R763
0.22 0.22
0
-43. 8
C761
Q662 220p
2SA1163L-TE85L 2SA1163L-TE85L
R761 4.7k
6.2k R762 6.2k
Q654 Q753 Q754
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
C659 C758 C759
47p 47p 47p
500V 500V 500V
R660
R759 R760
100 100 R757 R758 100
R657 R658
82k 560
82k 560
R656 -0.6 R756 -0. 6
2.2k
2.2k
Q751, 752
-1.1 LIMITER -1. 1
Q652 0.5
Q752
2SC3623ATP-LK
2SC3623ATP-LK
C757
47
-1. 1 1.1 -1. 1
25V
C657
Q751
47
2SA1115TP-EF
25V
JR340 0
IC B/D
IC700
IC600
POWER AMP
uPC2581V-S
14 13 12 11 10 9 8 7 6 5 4 3 2 1
C655
C653 C654
3p
33p 100p
500V
500V
R654 68k
R605
22k
C644
10
50V
R653 2.2k
R651
1k
C651 C652 C756
R652 R602 R600
10 100p 220
68k 0 0
50V 10V
8 9 10
R729 R730
10
47k
0
4.1
Q720
C725
2SC3052EF-T1-LEF
0.01
AF POWER
PROTECT
R725
10k R728
4.7
22k R714 1.5k R720 22k
Q711
0
2SA1163L-TE85L
0 0
Q711, 712
CURRENT 0
DETECT 0
R713
0.22
0
-43. 8 -43. 8
C711 Q712
Q762 220p 2SA1163L-TE85L
R711 4.7k
R712 6.2k
Q703 Q704
MN2488-OPY-MK MP1620-OPY-MK
BOOSTER BOOSTER
E C B B C E
3 2 1 1 2 3
C708 C709
47p 47p
500V 500V
R709 R710
100 R708 100
R707
560
82k
R706 -0. 6
2.2k
Q701, 702
LIMITER -1. 1
0.5
Q702
2SC3623ATP-LK
1.1 -1.1
C707 47 25V
Q701
2SA1115TP-EF
IC700
uPC2581V-S
15 14 13 12 11 10 9 8 7 6 5 4 3 2 1
C703
33p 500V
C705
C753 C754 C704 3p 500V
33p 100p
100p
500V R704 68k
C755
3p 500V
R754 68k
C744
R705
10 22k
50V
JS712
R753 2.2k
JS711 JS710
R701 1k
R751
1k
C751 C752 C701 C702 C706
R752 R702
10 100p 10 68k 100p 220
68k
50V 50V 10V
22 22
11 12 13 14
R879 R880 R829
10 10
47k
0
4.1
Q870
2SC3052EF-T1-LEF 2SC3052EF-T1-LEF
AF POWER
PROTECT
R878 R828
4.7
4.7
R864 1.5k R870 22k
Q861 Q811
0 0
2SA1163L-TE85L 2SA1163L-TE85L
0
Q861, 862 Q811, 812
CURRENT 0 CURRENT
DETECT 0 R863 DETECT 0
0.22
0 0
-43. 8
C861 Q862 C811
220p 2SA1163L-TE85L 220p
R861 4.7k R811 4.7k
R862 6.2k R812
Q853 Q854 Q803
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
C858 C859 C808
47p 47p 47p
500V 500V 500V
R860
R859 R809
100 100 100
R857 R858
82k 560
R856 -0. 6
2.2k
Q851, 852 Q801, 802
LIMITER -1. 1 LIMITER
0.5 0.5
Q852
2SC3623ATP-LK
1.1 -1. 1 1.1
Q851 Q801
C857
2SA1115TP-EF 2SA1115TP-EF
47
25V
IC800
IC B/D
POWER AMP
IC800
uPC2581V- S
15 14 13 12 11 10 9 8 7 6 5 4 3
C803
33p
C805
C853 C854 C804 3p 500V
100p
33p 100p
R804
500V
C855
3p 500V
R854
C545 C546
10 10
100V
100V
R853 2.2k
JS810
R803
R801 1k
R851 2.2k
1k
C856 C851 C852 C801 C802 C806
R852 R802
100p
220 10 68k 100p 10 220
68k
50V
10V 50V 10V
15 16
13
15
17
2
18
19
MAIN
20
BOARD
(3/3)
21
(Page 24)
22
23
24
R830
47k
0
4.1
Q820
AF POWER
PROTECT
R814 1.5k R820 22k
0
0
R813
0.22
-43. 8
Q812
2SA1163L-TE85L
6.2k
Q804
MP1620-OPY-MK
BOOSTER
B B C E
1 1 2 3
C809
47p
500V
R810
100
R806 R808
2.2k 560
R807 -0. 6
82k
-1. 1
Q802
2SC3623ATP-LK
-1. 1
C807 47 25V
2 1
500V
68k
68k
3
R545
25
1
26
MAIN
27
BOARD
R546
(3/3)
1
R805
(Page 24)
22k
C844
10
50V
12
11
4
10
9
MAIN
BOARD
6
(2/3)
4 (Page 23)