Schematic Diagram - Main Board (2/3) - Sony STR-K7200 - Av Receiver Component Service Manual

6-8.

SCHEMATIC DIAGRAM - MAIN Board (2/3) -

1 2
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
3
VACS CTRL
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
CNP411
15P
AGND 1
SL OUT 2
+7V
3
E
SBR OUT
4
SBL OUT 5
L IN 6
B
AGND
7
R IN
8
DIGITAL
AB BOARD
TUNER R 9
(2/5)
CNS501 AGND 10
F (Page 26)
TUNER L
11
DMPORT L-
12
DMPORT R- 13
DMPORT L+
14
DMPORT R+
15
G
H
I
CNP430
4P
C
R-CH 4
J
GND 3
VIDEO 2 NC 2
BOARD
L-CH 1
CNP201
(Page 41)
K
STR-K7200
• See page 48 for IC Block Diagrams.
3 4 5
JS336
C450
100p
C449
100p
R336
0
R335
6.8k
C335
47
16V
JS335
R337 D335
22k MAZ8030G0LS0
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
JS3002
R3013
47k
C3025
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
J401
6P
L
SA-CD/CD/
CD-R OUT
6 7 8 9
80 1
GND
79
LOUT SUB 2
78
ROUT SUB 3
0
77 GND 4
0 76 LOUT 5
75 ROUT 6
74 GND 7
0 73 RIN 8
LIN
0 72
SWIN
0 71
CIN
0
70
SRIN
0
69
SLIN
0 68
SBRIN
0 67
SBLIN
66
GND
0 65
INR1 (TUNER_R)
0 64
INL1 (TUNER_L)
0
63
INR2 (DMPORT_R)
0 IC400
62
INL2 (DMPORT_L)
61
ANALOG SOUND PROCESSOR
INPUT SELECTOR,
ELECTRICAL VOLUME
IC400
BD3471KS2
60
0 59
0 58
57
56
55
54
53
52
51
50
49
48 33
47 34
46 35
45 36
44 37
43 38
42 39
41 40
R401
1k
R451
C409
1k
4.7
R409
50V
1k
JS409 JS410 JS411
R452
1k
JS459 JS460 JS461
R402 R403
1k
1k
JS401
J403
(CHASSIS) 4P
R L R L R
SA-CD/CD/
TV IN
CD-R IN
23 23
10 11 12
(Page 22)
4
MAIN
BOARD
4 6 9 10
C488 C487
47 47
25V 25V
C499 C489
0.1 0.1
R487
2.2
7
9 0
0 R488
10
2.2
-6. 9
11
0
12
13 0
14 0
15 0
16 0
0
17
18
19
20
IC B/D
21
22
23
24
25
26
27
28
29
30
31
32
JS408
JS458
C458
4.7
50V
C408
4.7
50V
R458 R405
1k 1k
R404 R454 R408
R453
1k 1k 1k
1k
C403
2200p
(CHASSIS)
L R L R L R L R
SAT AUDIO DVD AUDI O VIDEO 1 VIDEO 1
IN IN AUDIO OUT AUDIO IN
STR-K7200
13 14
(1/3)
11 1 2
5 MAIN
BOARD
28
(3/3)
(Page 24)
CN434
6P
XMR
1
D
3 XMGND
4 XML
XM
-7V BOARD
5
CN102
+7V
6
(Page 33)
29
6
MAIN
BOARD
30
(3/3)
31
(Page 24)
7 MAIN
BOARD
32
(3/3)
(Page 24)
R455
1k
MAIN
8
W001-002 BOARD
(3/3)
(Page 24)
C405
2200p
J404
4P (CHASSIS)