Schematic Diagram - Main Board (2/9) - Sony STR-KM22 Service Manual

STR-KM22/KM55/KM77
5-8. SCHEMATIC DIAGRAM – MAIN Board (2/9) –
1 2 3
A
30
MAIN BOARD (2/9)
LIMITER
16
LEVEL_DET
B
17
DC_DET1
18
GND
19
PROTECTOR
20
C
R651
10
C678
C682 4p
0.022
R662 68k
Q655
2SA1514KT146S
CURRENT DETECT 0
D
C651
220p
0
R652
4.7k
0
60
E C
E
B
Q650 1.2
MN2488-OPY-MK
BOOSTER
21
22
F
>010S
R654
100
MAIN BOARD
R655
(1/9)
(Page 23)
R656
R384
G
23
R679
56k
Q670
HN4A06J-GRBL(TE85R)
POWER AMP
R661 2 0.6
H
68k
1 B
E
B
0.2 C C 3
5 4
-57.5 -57.5
C662 C681
100p 4p
R676 C670
3300p
470
R660 R663
R675 R677
2.2k 2.2k
2.2k 2.2k
I
D671
C663
C660
DA2J10100L
220 10V
10 50V
D672
DA2J10100L
24
AGND
25
J
OUTSR
26
OUTFL
27
>007S
OUTSL
28
MAIN BOARD OUTSW
29
(4/9)
(Page 26)
K
STR-KM22/KM55/KM77
4 5 6 7
31
R750
R668 R669
4.7
47k 68k
R659
100k
C654 R751
4700P 10
C778
R657
C782 4p
0.022
47k
R762 68k
R664 Q755
R665
15k CURRENT DETECT
1.5k
-1.6 -1.6 -60.1 2SA1514KT146S 0 -1.6
Q654 C751
220p
2SA1514KT146S
0 0
CURRENT DETECT
R752
4.7k
R658 6.2k R758
R653
0
-59.8 0 60
C E E C
B B
-1.1 Q651 Q750 1.1
MP1620-OPY-MK MN2488-OPY-MK
BOOSTER BOOSTER
C792
C692 C691
47p 47p 47p
R754
R667
100
100
CL650
22k R666 560 R755 22k
Q653
2.2k -0.5 R756 2.2k
2SD2114KT146
CL651 BIAS
6.8k -1 R385 6.8k
0.6 0.6 Q652
2SA1162-YG-TE85L
BIAS
CL652
1.2
-1
C658 47 35V
C758
R673 R674
R779
220 220
56k
Q770
D670 HN4A06J-GRBL(TE85R) D770
59.3
Q672 DA2J10100L
DA2J10100L POWER AMP
58.7 C762
2 0.6
KTA1024-Y
100p
POWER AMP
0.2 1 B 0.2
R670 E
1.1 B
4.7k 0.2 C C 3
5 4
-57.5 -57.5
R671
4.7k R761 C781
4p
68k
R672
C686
C770
4.7k R776
47p
3300p
470
C685
-1.1 R760 R763
47p R775 R777
15.5 Q674
2.2k 2.2k
2.2k 2.2k
-57.7
KTC3206-Y
-57.7
POWER AMP
D771
-58.2
-58.2 C763
C760
DA2J10100L
220 10V
10 50V
Q675
R678 KTC3206-Y D772
DA2J10100L
270 POWER AMP
8 9 10
>008S
MAIN BOARD
(3/9)
(Page 25)
32
R768 R769
R759 47k 68k
100k
C754
R601
4700P 10
R757
C628
C632 4p
22k
0.022
R612 68k
R764 Q605
15k
R765 2SA1514KT146S
1.5k CURRENT DETECT
-1.6 -60 0 -1.6
C601
Q754
220p
2SA1514KT146S
0 0
CURRENT DETECT
6.2k
R602 4.7k
R753
0
-59.8 0 60
C E E C
B B
-1.1 Q751 Q600 1.1
MP1620-OPY-MK MN2488-OPY-MK
BOOSTER BOOSTER
C642
C791
47p 47p
R767 R604
100
100
CL750
R766 560 R605 22k
Q753
-0.5 R606 2.2k
2SD2114KT146
CL751 BIAS
R386 6.8k
-1
0.6
0.6 Q752
2SA1162-YG-TE85L
BIAS
CL752
1.2 -1
47 35V
R773 R774
R629
220 220
56k
Q620
59.3 HN4A06J-GRBL(TE85R)
DA2J10100L
58.7 POWER AMP
R611 2 0.6
68k
1 B 0.2
R770 E
1.1
B 3
4.7k 0.2 C C
Q772
5 4
KTA1024-Y -57.5 -57.5
R771 POWER AMP
4.7k C612
C631
100p 4p
R772
4.7k
C786 C620
R626
47p 3300p
470
C785
R610 R613
-1.1 R625 R627
15.3 Q774 47p
2.2k 2.2k
2.2k 2.2k
-57.7
KTC3206-Y
-57.7
POWER AMP
D621
-58.2
-58.2
C610 C613
DA2J10100L
10 50V 220 10V
Q775
R778 KTC3206-Y D622
DA2J10100L
270 POWER AMP
24 24
11 12 13 14
33
R700
R618 R619
4.7
47k 68k
R609
100k
C604 R701
4700P 10
R607 C728
C732 4p
47k 0.022
R712 68k
Q705
R614
R615
15k 2SA1514KT146S
1.5k
-1.6 -60 CURRENT DETECT 0 -1.6
C701
Q604
220p
2SA1514KT146S
0 0
CURRENT DETECT
R603 R702
4.7k
R708
R608 6.2k
0
-59.8 0 65.8
C E E C
B B
-1.1 Q601 Q700 1.1
MP1620-OPY-MK MN2488-OPY-MK
BOOSTER BOOSTER
C641 C742
47p
R704
R617
100
100
CL600
R705
R616 560
Q603
R706
-0.5
2SD2114KT146
CL601 BIAS
R387
-1
0.6
0.6 Q602
2SA1162-YG-TE85L
BIAS
CL602
1.2
-1
C618 47 35V
R623 R624
R729
220 220
56k
Q720
D620 D720
59.3 HN4A06J-GRBL(TE85R)
Q622
DA2J10100L
58.8 POWER AMP
KTA1024-Y R711 2 0.6
POWER AMP 68k
1 B 0.2
R620 E
1.1
B
4.7k 0.2 C C 3
5 4
-63 -63
R621
4.7k
C712 C731
4700p 4p
R622
C636 4.7k
C720
R726
47p
3300p
470
C635 R710 R713
-1.1 R727
15.8 Q624
47p 2.2k 2.2k
2.2k
-57.9
KTC3206-Y -57.9
POWER AMP
Q625
R725
-58.3
-58.3 C713
KTC3206-Y C710 2.2k
220 10V
10 50V
POWER AMP
D721
R628
DA2J10100L
270
C977
R934
R933 D722
220p
47k 3.3k
DA2J10100L
D940 D941
DA2J10100L DA2J10100L
R932 1k
D938 D939
R931
DA2J10100L DA2J10100L
1k
R929 1k
15 16 17
>009S
MAIN BOARD
(3/9)
(Page 25)
34 35
KM77
CN958
6P
CL870
1 LEVEL DET
CL871
3 DC DET
CL872
>011S
4 DC DET
CL873
5 GND
SURR BACK
CL874 AMP
6 GND
BOARD
CN406
(Page 42)
R718
47k
R709
GND
>005S
100k 8
MAIN BOARD
C704
(5/9)
0.047 R719
(Page 27)
68k
R707
47k
R714
R715
15k
1.5k
-1.6 -59.9
Q704
2SA1514KT146S
0
CURRENT DETECT
6.2k
R703
-65.7 0
C E
B
-1.1 Q701
MP1620-OPY-MK
BOOSTER
4
3
C741
47p 47p
R717
100
CL700
22k
R716 560
Q703
2.2k
-0.5
2SD2114KT146
CL701 BIAS
6.8k
-1
0.6
Q702
0.6 2SA1162-YG-TE85L
BIAS
CL702
1.2 -1
C708 47 35V
5
R723 R724
220 220
64.7
Q722
64.6
KTA1024-Y >004S
POWER AMP
R720
MAIN BOARD
1.1
4.7k (1/9)
(Page 23)
R721
4.7k
R722
C736 4.7k
47p
C735
-1.1
19
47p
Q724
-63.7
-63.7
KTC3206-Y
POWER AMP
-64.3
-64.3
Q725
R728 KTC3206-Y
270
POWER AMP
7
OUTSW2
6
36
>012S
37
MAIN BOARD
(3/9)
(Page 25)
A-GND
38 >013S
MAIN BOARD
(6/9)
(Page 28)