Schematic Diagram - Main Board (2/3) - Sony STR-KG800 Service Manual

Q Q
3 7 6 3 1 5 1 5 0
6-8.

SCHEMATIC DIAGRAM - MAIN Board (2/3) -

1 2 3
A
MAIN BOARD (2/3)
1
MAIN 1
BOARD
2
(1/3)
3
(Page 22)
B
CNP410
R450
13P
1k
VOL IC CLK 1
VOL IC DATA 2
R449 1k
VACS CTRL 3
PROTECTOR 4
C
+7V 5
A
-7V 6
FR OUT 7
DIGITAL
AGND 8
AB BOARD
(2/5)
FL OUT 9
CNS502
SW 10
(Page 26)
AGND 11
C OUT 12
D
SR OUT 13
R336
C335
47
16V
R337
22k
CNP411
15P
AGND
1
SL OUT
2
+7V
3
E
SBR OUT 4
T E
L 1 3 9 4 2 2 9 6 5 1 3
SBL OUT 5
L IN 6
B
AGND 7
R IN
8
DIGITAL
AB BOARD
TUNER R
9
(2/5)
AGND
CNS501 10
(Page 26)
F
TUNER L
11
DMPORT L- 12
DMPORT R- 13
DMPORT L+ 14
DMPORT R+ 15
G
H
JS3002
C3025
I
CNP430
4P
C
R-CH 4
w w w
J
GND 3
VIDEO 2
NC 2
BOARD
L-CH 1
CNP201
(Page 39)
K
STR-KG800
• See page 46 for IC Block Diagrams.
4 5 6
JS336
C450
100p
C449
100p
0
R335
6.8k
JS335
D335
MAZ8030G0LS0
0
0
0 62
61
ANALOG SOUND PROCESSOR
60
0 59
0
JS3001
JS432
C3032
1
JS3037
C3037
C3034 1
4.7
50V
R3022
47k R3023
47k
JS3022
R3020 47k
C3026
0.1
1 2 3 4
IC3002
BUFFER
8 7 6 5
C409
R3013 R409
1k
47k
0.1 R3010
47k
R3011 R3012
47k 47k
C3022 C3027
1 1
C459
4.7
50V
R430 R431
1k 1k
R459
C431 1k
220p
C430 220p
x a o
y
. i
J401
6P
L R
SA-CD/CD/
CD-R OUT
http://www.xiaoyu163.com
7 8 9
80 1
GND
79
LOUT SUB 2
78 3
ROUT SUB
0 77 GND 4
0 76 LOUT 5
75 ROUT 6
GND 7
74 7
0 RIN
73 8
0 72 LIN 0
9
SWIN
0 71 10 0
CIN
0 70 11 -6. 9
SRIN
0 69 12
SLIN
0 68 13
SBRIN
0
67 14
SBLIN
66
GND
0 65
INR1 (TUNER_R)
64
INL1 (TUNER_L)
63
INR2 (DMPORT_R)
IC400
INL2 (DMPORT_L)
INPUT SELECTOR,
ELECTRICAL VOLUME
Q Q
IC400
3 7 6
BD3471KS2
58
57
56
55
54 27
53 28
52 29
51 30
50 31
49 32
48 33
47 34
46 35
45 36
44 37
43 38
42 39
41 40
R401
1k
R451
1k
4.7
50V
JS410 JS411
JS409
R452
1k
CC09 100p
JS460 JS461
JS459
R402 R403
1k 1k
R453
1k
CC51 CC52
CC01
100p 100p
100p
CC02 CC03
JS401
100p 100p
u 1 6 3
J403
(CHASSIS) 4P
L R L R L R
SA-CD/CD/ SAT AUDIO
TV IN
CD-R IN IN
23 23
2 4
8 9 9
10 11 12
4
MAIN
(Page 22)
BOARD
(1/3)
4 6 9 10 11 1 2
C488 C487
47 47
25V 25V
C499 C489
0.1
0.1
R487
2.2
R488
2.2
0
0
0
0
15
0
16
17 0
18
19
20
IC B/D
3 1 5 1 5 0 8 9
21
22
23
24
25
26
JS408
JS458
JR435
0
JR434 0
C458
4.7
50V R455
C408 1k
4.7
50V
R458 R405
1k 1k
R408
R404 R454
1k 1k 1k
m
C403
2200p
c o
.
J404
(CHASSIS) 4P
L R L R L R
DVD AUDI O VIDEO 1 VIDEO 1
IN AUDIO OUT AUDIO IN
STR-KG800
2
8 9 9
13 14
5 MAIN
BOARD
28
(3/3)
(Page 24)
2 4 9 8 2 9 9
29
6 MAIN
BOARD
30
(3/3)
31
(Page 24)
7
MAIN
BOARD
32
(3/3)
(Page 24)
MAIN
8
BOARD
W001-002
(3/3)
(Page 24)
C405
2200p
(CHASSIS)