Schematic Diagram - Main Board (2/4) - Sony STR-K995 Service Manual
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- Operating instructions manual (80 pages) ,
- Quick setup manual (2 pages)
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Q Q
4-13. SCHEMATIC DIAGRAM – MAIN BOARD (2/4) –
3 7 6 3 1 5 1 5 0
1
2
3
MAIN BOARD
(2/4)
A
IC B/D
IC701
µPC2581V-S
1
2
3
4
B
R744
C701
C744
C755
4.7
22k
33p
2.2
50V
R701
500V
100V
1k
6
C707
R702
100p
68k
C751
4.7
C757
R752
C
R751
100p
68k
50V
1k
7
R753
2.2k
C753
100
10V
D
1
MAIN
BOARD
(1/4)
(Page 26)
E
IC601
µPC2581V-S
1
2
3
4
C651
R743
C743
C605
4.7
22k
2.2
33p
R651
50V
500V
1k
100V
9
F
C657
R652
100p
68k
50V
C601
C607
4.7
R602
100p
68k
50V
50V
T E
10
L
1 3 9 4 2 2 9 6 5 1 3
R601
1k
R603
2.2k
G
C603
100
10V
H
I
J
14
K
w w w
STR-K995
• See page 43 for IC Block Diagrams.
4
5
6
7
8
IC701
POWER AMP
Q701
R714
2SA1115TP-EF
33
LIMITER
1.2
R710
R711
2.2k
82k
0.5
Q702
-1
2SC3623ATP-LK
5
6
7
8
9
10
11
12
13
14
15
0.5
LIMITER
0
C710
47
-1
R713
25V
C756
C706
C705
560
+V_L
100p
100p
33p
500V
-V_L
R715
33
C754
C704
3p
3p
500V
500V
C716
47p
R704
500V
68k
Q652
R754
68k
R703
2SC3623ATP-LK
2.2k
LIMITER
C703
-1
R663
100
560
10V
-0.1
C660
47
25V
0.6
-V_R
-1
+V_R
0.6
R661
R660
2.2k
82k
IC601
0.2
IC B/D
POWER AMP
Q651
2SA1115TP-EF
LIMITER
5
6
7
8
9
10
11
12
13
14
15
C666
500V
Q601
2SA1115TP-EF
LIMITER
C606
C656
C655
+V_SL
100p
100p
33p
500V
-V_SL
R610
1.2
0.5
-1
C604
C654
C610
0.5
3p
3p
47
500V
500V
25V
-0.6
R654
68k
-1
R604
68k
R653
2.2k
Q602
C653
2SC3623ATP-LK
100
LIMITER
10V
-V_SR
C620
47p
+V_SR
500V
Q752
2SC3623ATP-LK
LIMITER
-1
C760
-0.5
47
25V
0.5
-1
0.5
R760
2.2k
1.1
Q751
2SA1115TP-EF
LIMITER
15
16
17
18
19
x
a o
y
.
i
http://www.xiaoyu163.com
9
10
11
12
BOOSTER
C717
Q703
MN2488-OPY-MK
47p
R719
C720
500V
0.1
220p
4.7k
1.2
R740
C742
B
0.01
Q705
22k
0.1
2SA1163L-TE85L
46
C
CURRENT DETECT
D740
1SS355WTE-17
0
1.2
R748
R747
D705
R722
15k
E
15k
R716
0.22
1.5k
R724
1SS355WTE-17
R721
15k
6.2k
JL001
0
C711
R739
0.022
100k
Q704
MP1620-OPY-MK
0
R729
-1
C729
D729
Q706
R717
10k
0.01
E
2SA1163L-TE85L
1SS355WTE-17
-45
10
25V
R725
CURRENT DETECT
-46
68k
C
-0.1
Q655
R638
R667
B
68k
10
R723
2SA1163L-TE85L
47k
-46
CURRENT DETECT
0.1
C661
0.022
C669
Q654
MP1620-OPY-MK
R665
47p
33
-1.3
500V
-0.1
B
R673
47k
-46
C
Q656
0.1
2SA1163L-TE85L
C642
E
R640
0.01
1SS355WTE-17
22k
CURRENT DETECT
-0.1
R671
R666
0.22
6.2k
0.1
D665
R648
R677
R674
1SS355WTE-17
15k
15k
15k
R669
C670
4.7k
220p
0.1
R668
4.7
R664
33
1.2
L651
R623
1.7uH
E
47k
R620
C619
1.2
46
4.7k
220p
C
0
0.1
R621
B
6.2k
Q605
0.3
2SA1163L-TE85L
R622
47p
1.5k
CURRENT DETECT
Q653
MN2488-OPY-MK
R680
C621
22k
Q603
MN2488-OPY-MK
R614
47p
33
500V
0.1
C681
R681
B
0.01
R624
15k
15k
R611
46
2.2k
82k
C
D605
L601
1SS355WTE-17
1.2
SR-CH
1.7uH
E
Q606
2SA1163L-TE85L
R616
0.22
R618
Q
Q
4.7
CURRENT DETECT
0.1
3
7
6
-1
R613
560
C611
R617
0
0.022
Q604
MP1620-OPY-MK
10
R615
R625
33
-1
68k
E
-46
C
L751
-0.1
Q755
R775
1.7uH
B
2SA1163L-TE85L
68k
C767
CURRENT DETECT
-45
47p
R768
500V
4.7
Q754
MP1620-OPY-MK
0.1
C752
R750
0.01
R765
-0.1
22k
R763
33
B
560
-1.2
D765
R758
-46
R778
1SS355WTE-17
15k
15k
C
C749
-1
Q756
R772
E
0.01
R749
2SA1163L-TE85L
1.5k
25V
10k
CURRENT DETECT
-0.7
R771
R766
0.22
6.2k
0
R761
82k
R773
47k
C770
R769
4.7k
220p
0.1
C761
R767
R764
0.022
10
33
0.1
E
46
C
C766
47p
500V
-0.2
B
Q753
MN2488-OPY-MK
BOOSTER
MAIN BOARD
(3/4)
4
(Page 28)
u 1 6 3
27
27
http://www.xiaoyu163.com
2
4
8
9
9
13
14
15
16
17
R794
680
1W
R792
680
RY701
1W
6.5
Q740
0
2SC3052EF-T1-LEF
AF POWER PROTECT
C740
R746
R745
10
47k
4.7k
50V
L701
1.7uH
R718
4.7
D710
Q710
1SS355TE-17
2SC3052EF-T1-LEF
RELAY DRIVE
0.2
R734
0.8
82
R731
2.2k
Q793
2SC3052EF-T1-LEF
PROTECT SW
C791
-46
220
4.7k
R675
0.1
10V
0.1
Q640
Q795
2SC3052EF-T1-LEF
R676
47k
2SA1163L-TE85L
R790
AF POWER PROTECT
PROTECT SW
100k
D640
6.5
0
Q723
R770
100k
2SC3052EF-T1-LEF
C640
PROTECT SW
Q725
10
50V
2SA1163L-TE85L
0.1
C721
0.1
220
PROTECT SW
10V
-46
D733
R780
10k
R735
1SS355WTE-17
6.8k
D722
3.3
R655
1SS355WTE-17
Q722
4.7k
-45.7
2SC3052EF-T1-LEF
PROTECT SW
Q680
D721
R737
C722
R656
1SS355WTE-17
10
2SC3052EF-T1-LEF
39k
-46
47k
50V
AF POWER PROTECT
D680
6.5
1SS355WTE-17
0
C680
R657
15k
10
50V
R736
1k
R634
RY601
82
D610
0.2
R631
3
1
5
1
5
1SS355WTE-17
0
8
9
1k
0.8
68
Q610
2SC3052EF-T1-LEF
RELAY DRIVE
R755
4.7k
Q750
2SC3052EF-T1-LEF
47k
R756
AF POWER PROTECT
D750
6.5
R738
RY710
1SS355WTE-17
82
0
D701
R757
C750
16.5
1SS355WTE-17
15k
10
R632
50V
2.2k
0.2
64
R759
Q611
100k
2SC3052EF-T1-LEF
RELAY DRIVE
D749
1SS355WTE-17
21
22
23
20
24
25 26
27
28
m
c o
.
STR-K995
2
8
9
9
18
19
20
21
CN792
5P
55
1
HPHONE DET
3
R-CH
I
62
4
GND
HEADPHONE
5
L-CH
R791
BOARD
2.2k
CNP790
66
(Page 37)
0.8
RY791
D791
0.2
1SS355WTE-17
Q790
R793
2SC3052EF-T1-LEF
82
RELAY DRIVE
3.3
3.3
61
D732
1SS355WTE-17
TB001
8P
R(+)
L(+)
+
+
FRONT
L
FRONT
R
L(-)
A
R(-)
A
–
–
SR(+)
+
+
SL(+)
2
4
9
8
2
9
9
SURROUND
R
L
SURROUND
SR(-)
SL(-)
–
–
SPEAKERS
(IMPEDANCE USE6-16 Ω )
TM602
+
L
–
FRONT B
+
R
–
No mark:FM
29
30
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