Schematic Diagram - Main Board (1/9) - Sony STR-KM22 Service Manual

5-7. SCHEMATIC DIAGRAM – MAIN Board (1/9) –
1 2 3
A
MAIN BOARD (1/9)
B
C
D
>001S
1
MAIN BOARD
(7/9)
(Page 29)
SW_LIMITER
LIMITER
E
D_GND
TEMP_SENSOR_2
TEMP_SENSOR_1
F
TEMP_SENSOR_3
+3.3V
>002S 2
MAIN BOARD
(6/9)
(Page 28)
KM55, KM77
CN957
3P
G
-B 1
CL866
>003S +B 2
+B 3
SUB RECTIFIER
CL865
BOARD
CN932
(Page 40)
3
4
5
>004S
H
OUTSW2
6
MAIN BOARD
(2/9) 7
(Page 24)
GND
>005S
8
MAIN BOARD
I
(5/9)
(Page 27)
KM55, KM77
CN956
R935
4P
0.47
CL863
+B 1
NC 2 C986
>006S
22 100V
GND 3
J SUB RECTIFIER
-B 4 CL864
BOARD
C985
CN932
(Page 40) 22 100V
R936
0.47
OUTC
9
>007S
K
OUTFR
10
MAIN BOARD
(4/9)
(Page 26)
STR-KM22/KM55/KM77
4 5 6
R505 0
KM55, KM77
R544
0
C548 0.1
R559
C545 47 25V
100k
D536
DZ2J051M0L
C554
R551
10 0.047
R547 47k
C578 R557
C582 4P
0.022 47k
R562 68k
R509
R549 R548
Q555
R564
22k 22k 22k
R565
2SA1514KT146S
15k
1.5k
CURRENT DETECT 0 -1.6 -1.6
C551
220p
0
R552
4.7k
R558 6.2k
CL378
C250 0.1
0 65.9 -65.8
R251 2.2k
E C C
TH251
Q550
10k
MN2488-OPY-MK
BOOSTER
R252 2.2k
B
1.1
TH252
10k
R253 2.2k
C592
TH253
47p
10k
R554
100
R555 22k
R556 2.2k
CL551
R381 6.8k
0.6
2SA1162-YG-TE85L
1.2
-1
C558 47 35V
R579 R573
220
56K
Q570
HN4A06J-GRBL (TE85R)
D570
C564 POWER AMP
2 0.6 DA2J10100L
4700p
1 B 0.2
E
B 3 R570
0.2 C C
4.7k
5 4
-63 -63
C581
R561
4p R571
68k
4.7k
C586
R572
47p
4.7k
R560 R563
R576
C570 18.3
2.2k 2.2k
470
3300p -63
C560 C563
-64.2
10 50V 220 10V
R577
2.2k
D571
DA2J10100L
R575
2.2k
7 8 9 10
>008S
MAIN BOARD
(3/9)
(Page 25)
11 12
R550
R568 R569
L550
4.7
47k 68k
R851
10
C878
0.022
Q855
2SA1514KT146S
CURRENT DETECT
-60 0 -1.6
Q554 C851
2SA1514KT146S 220p
0 0
CURRENT DETECT
R852
4.7k
R553
0 0 60
E E C
Q850
Q551
MN2488-OPY-MK
MP1620-OPY-MK
BOOSTER
BOOSTER
B B
-1.1 KM22 1.2
JW007
JW008
C591 C892
47p 47p
R854
R567
100
100
CL550
R566 560 R855 22k
Q553
-0.5 R856 2.2k
2SD2114KT146
BIAS
R382 6.8k
KM55, KM77
0.6 -1
Q552
BIAS
CL552
KM22
JW010
0
R879
C862 C881
56k
100p Q870
4p
R574 HN4A06J-GRBL(TE85R)
220 DA2J10100L
POWER AMP
2
R861 0.6
68k
1 B 0.1
E
65.3
Q572
0.1 C C B 3
64.8
KTA1024-Y
-57.7 5 4 -57.7
POWER AMP
1.1
C870
R876
3300p
470
R860 R863
C585
2.2k 2.2k
-1.1 47p
R875 R877
Q574
Q575 2.2k 2.2k
-63.3
KTC3206-Y
KTC3206-Y
-64.2
POWER AMP
POWER AMP C863
C860
D871
220 10V
10 50V
DA2J10100L
R578
D872
D572
270 JW003
DA2J10100L DA2J10100L
0
KM22
KM55, KM77
23 23
11 12 13
13
R868 R869
47k 68k
R800
R859 L800
4.7
100k
C854 R801 C804
4700P 10 4700P
R857 C828 R807
47k 0.022 22k
Q805
R864
2SA1514KT146S
R865 15k
CURRENT DETECT
1.5k
-1.6 -60.2 0 -1.6
C801
Q854
220p
2SA1514KT146S
0 0
CURRENT DETECT
R858
R802
6.2k
4.7k
R853
0 0
-59.8
C E E
Q851 Q800
B B
-1.1 1.2
MP1620-OPY-MK MN2488-OPY-MK
BOOSTER BOOSTER
C891 C842
47p 47p
R867 R804
100 100
CL850
R866 560 R805 22k
R806 2.2k
Q853
-0.5
2SD2114KT146
CL851 BIAS
R383 6.8k
0.6 -1
0.6
Q852
2SA1162-YG-TE85L
BIAS
CL852
1.2
-1 1.2
C858 47 35V
C808
R873 R874 R823
R829
C831
220 220 R811 220
56k
4p
68k
D870 D820
59.8
Q872
DA2J10100L
59.1 C812
KTA1024-Y 2
0.6
POWER AMP 100p
1 B 0.2
E
R820
1.2
0.2 C C B 3 4.7k
R870
4.7k
-57.9 5 4 -57.9 Q820
HN4A06J-GRBL(TE85R)
R871
POWER AMP
4.7k
R872
C886 C820 C836
4.7k
R826
47p 3300p 47p
470
R810 R813
2.2k 2.2k
C885 R825
R827
15.9
Q874
-1.1 47p 2.2k
2.2k
KTC3206-Y
POWER AMP
C813
-57.8 C810 -57.7
-57.7 D821
-58.3 -58.3 220 10V
10 50V
DA2J10100L
Q875
R878 KTC3206-Y D822
270 POWER AMP DA2J10100L
STR-KM22/KM55/KM77
Ver. 1.2
14 15 16 17
>009S
MAIN BOARD
(3/9)
(Page 25)
14 15
LIMITER
16
LEVEL_DET
17
DC_DET1
18
GND
19
PROTECTOR
20
R818 R819
47k 68k
R809
100k
R814
R815
15k
1.5k
-1.6 -60.1
Q804
2SA1514KT146S
0
CURRENT DETECT
R808
6.2k
R803
60 0
-59.8
C C E
Q801
B
-1.1
MP1620-OPY-MK
BOOSTER
21
22
C841
47p
R817
100 >010S
CL800
R816 560
MAIN BOARD
Q803
-0.5 (2/9)
2SD2114KT146 (Page 24)
CL801 BIAS
CL802
0.6 -1
0.6 Q802
2SA1162-YG-TE85L
BIAS
-1
47 35V
23
R824
220
59.4
Q822
59
KTA1024-Y
POWER AMP
1.1
R821
4.7k
R822
4.7k
C835
15.8
Q824 -1.1
47p
KTC3206-Y
POWER AMP
-57.7
-58.3 -58.3
Q825
KTC3206-Y
R828
POWER AMP
270
24
AGND
25