Sony STR-K990 - Schematic Diagram - MAIN Board (4;4)

2828
STR-K990
STR-K990
4-14. SCHEMATIC DIAGRAM – MAIN BOARD (4/4) –
O
VIDEO
BOARD
CNP203
(Page 36)
D
DIGITAL
BOARD
(4/5)
CNP503
(Page 22)
L
DCAC
BOARD
CN2000
(1pin to 4pin)
(Page 34)
M B
DISPLAY BOARD
CN108
(Page 30)
DIGITAL BOARD
(4/5)
CNP505 (6,7pin)
(Page 22)
N
STANDBY BOARD
CNP802
(Page 32)
K
POWER
TRANSFORMER
T901
(Page 32)
POWER
TRANSFORMER
T901
(Page 32)
J
0
0.8
7
-7
17
-16.5
-21.9 -46
-22.5
0.8
0.2
No mark:FM
J309
2200p
C400
47k
R470
220
R802
1SS355WTE-17
D560
2SC3052EF-T1-LEF
Q560
47k
R533
10k
R532
I
I
O
O
G
G
TA7807S
IC801
25V
47
C807
25V
47
C808
1SR154-400TE-25
D896
TA79007S
IC802
16V
3300
C832
1SR154-400TE-25
D805
1SR154-400TE-25
D806
1SR154-400TE-25
D807
1SR154-400TE-25
D808
35V
47
C822
35V
47
C801
35V
47
C802
10k
R804
22k
R806
4.7
R803
2SB734-T-34
Q801
D6SBN20-7003
D802
100V
0.22
C805
100V
0.22
C806
100k
R468
1k
R469
RY560
1
3
4
5
6
7
8
9
CNP913
PROTECTOR
FRONT A RY
SB/CTR/REAR RY
HP CTRL
HP RY
WOOFER RY
FRONT B RY
BRIDGEABLE RY
2SC3052EF-T1-LEF
Q809
82
R830
D818
2.2k
R824
1
2
3
4
5
5P
CNP801
R1 (SIDE1)
R2 (SIDE2)
GND
R2 (SIDE2)
R1 (SIDE1)
RY801
1
2
3
4
5
6
6P
CNP802
F1
NC
GND
F2
-R4
+R4
71V
6800
C803
71V
6800
C804
12
3
CNP912
+7V (R4)
NC
GND (R4)
1
2
34
4P
CNP507
F1 NC F2
-20V
1
3
4
CN505
+15V
GND
-15V
1
3
4
4P
CN506
+7V
GND
-7V
100V
0.1
C809
50V
0.47
C830
50V
0.47
C831
0.47
C811
0.47
C810
UDZSTE-1722B
D801
PTZ-TE25-5.6B
D804
12345
5P
CN915
R2 RETURN GND
-15V
STBY GND
R2 GND
+15V
50V
4.7
C471
1/2W
0.15
R910
61
66
68
55
62
64
69
69
+7V
12 3836 3734 353331 32
RELAY DRIVE
IC801
IC802
+7V REG
-7V REG
-20V REG
SYSTEM
GND
WP101
WP102
1SS355WTE-17
RELAY DRIVE
1P
4P
9P
3P
SUBWOOFER AUDIO OUT
(4/4)
MAIN BOARD
12
1
2
3
3
3
MAIN BOARD
(1/4)
(Page 25)
5
MAIN BOARD
(3/4)
(Page 27)