Schematic Diagram - Main Board (4/4) - Sony STR-K995 Service Manual

Q Q
4-15. SCHEMATIC DIAGRAM – MAIN BOARD (4/4) –
3 7 6 3 1 5 1 5 0
J309
SUBWOOFER AUDIO OUT
VIDEO
+15V
BOARD
O
GND
CNP203
-15V
(Page 37)
PROTECTOR
FRONT A RY
DIGITAL
SB/CTR/REAR RY
BOARD
HP CTRL
U
(4/5)
HP RY
CNP506
WOOFER RY
(Page 23)
T E
L 1 3 9 4 2 2 9 6 5 1 3
FRONT B RY
BRIDGEABLE RY
SUB-T
DCAC
+7V
BOARD L
GND
CN2000
-7V
(1pin to 4pin)
(Page 35)
w w w
STR-K995
MAIN BOARD
3 (1/4)
(Page 26)
2 1 31 32
MAIN BOARD (4/4)
C471
4.7
50V
R469
R468
1k
100k
R470
47k
RY560
D560
C400
1SS355WTE-17
Q560
2200p
2SC3052EF-T1-LEF
RELAY DRIVE
0
0.8
CN505
R802 R533
4P
220 47k
1
3
4
R532
CNP913
10k
9P
1
3
4
5
6
7
8
9
10
CN506
4P
1
3
4
R910
D808
0.15
1SR154-400TE-25 1/2W
C831
D805
0.47
1SR154-400TE-25
50V
D806
1SR154-400TE-25 C830
0.47
C832
50V
3300 D807
16V 1SR154-400TE-25
CNP507
4P
CNP912
1 2 3 4 3 2 1
3P
M B
x a o
y
DISPLAY BOARD DIGITAL BOARD
. CN108 i (4/5)
(Page 31) CNP505 (6,7pin)
(Page 23)
http://www.xiaoyu163.com
MAIN BOARD
5
(3/4)
(Page 28)
36 34 33 35
IC801
+7V REG
IC801
TA7807S
7 17
2 1
O I
G
C807
C811
3
47
0.47
25V
C808
C810
1
47
0.47
-7 -16.5
25V G
2 O 3
I
D896
1SR154-400TE-25
IC802
TA79007S
IC802
-7V REG
61
66
68
55
62
Q Q
64
3 7 6
69
C803
6800
71V
Q801
2SB734-T-34
C804
-20V REG
6800
71V
-21.9 -46
R803
R804 R830
4.7
10k
82
-22.5
WP102
C801 C802 C809
C822
R806 47
47 47 0.1
22k 35V
35V
35V 100V
WP101
SYSTEM
CN915
7 6 5 4 3 1 5P
N
u 1 6 3
STANDBY BOARD
CNP802
(Page 33)
29 29
http://www.xiaoyu163.com
2 4
8 9 9
37 38
3 1 5 1 5 0 8 9 2
D802
D6SBN20-7003
R824
C805
2.2k
RY801
0.22
100V
C806
0.22
D818
100V
1SS355WTE-17
0.2
0.8
Q809
2SC3052EF-T1-LEF
RELAY DRIVE
CNP802
GND
No mark:FM
m
c o
.
STR-K995
2
8 9 9
5 R1 (SIDE1)
POWER
4 R2 (SIDE2)
TRANSFORMER
J
3
GND T901
4 9 8 2 9 9
(Page 33)
2 R2 (SIDE2)
1
R1 (SIDE1)
CNP801
5P
6P
6
+R4
5 -R4
POWER
TRANSFORMER
4 F2 K
T901
3 GND
(Page 33)
2 NC
1
F1