Schematic Diagram - Main Board (3/4) - Sony STR-KM5 Service Manual

5-16. SCHEMATIC DIAGRAM – MAIN Board (3/4) –
1 2 3
A
MAIN BOARD (3/4)
B
CN300
14P
VACS CTRL 14
CL300
SW_RLY 13
CL301
12
LR_RLY
CL302
DIGITAL
SBL_R_RLY 11
CL303
BRIDGEABLE_RLY 10
AUDIO
CL304
C C_SUR_RLY 9
BOARD
CL305
G
PROTECTOR 8
CL306
(4/4)
LIMITER 7
CL307 R300
CN2105 EVol_DATA 6
CL308 R301
EVol_CLK 5
(Page 25)
CL309
+7V
4
CL310 C304
L_Out 3
NC 2
CL311 C305
D R_Out 1
E
CN301
14P
AGND 14
CL312
AGND 13
Muting 12
CL313
DIGITAL DAC FR IN 11
CL314
DAC FL IN 10
AUDIO
CL315
DAC SW IN 9
BOARD CL316
F F
DAC C IN 8
CL317
(4/4)
DAC SR IN 7
CL318
DAC SL IN 6
CN2104
CL319
DAC SBR IN 5
(Page 25)
CL320
DAC SBL IN 4
CL321
TUNER_R 3
NC 2
CL322
TUNER_L 1
G
H
I
J
K
STR-KM5/KM7
• See page 49 for IC Block Diagrams.
4 5 6
MAIN BOARD MAIN BOARD
(2/4) (1/4)
(Page 28) (Page 27)
9 2
27 4
SW_RLY
LR_RLY
SBLR_RLY
BRIDGE
C_SLR_RLY
220
220
C311 C310
10 50V
100p 100p
C312 100p
10 50V
C313 100p
C314 3300p
C300 10 50V R304 1k
C315 3300p
C306 10 50V R302
1k
C316 4700p
C301 10 50V R305 1k
C317 3300p
C307 10 50V R306 1k CL323
C318 3300p
C302 10 50V R303 1k CL324
C319 3300p
KM5
C308 10 50V R307 1k
C320 3300p R376 0
R308 1k
C303 10 50V
C321 3300p R377 0
C309 10 50V R309 1k CL325
TUNER_R
KM7
TUNER_L
R320 R321
1k
1
J300
6P
L
SA-CD/CD
AUDIO IN
7 8 9 10
MAIN BOARD (2/4)
(Page 28)
10
28 29 30 31
CLK
DATA
C333
2200p
C334
C332
0.1
2200p
7 0 0 0 -7 0 0 0 0 0 0 0
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20
IC B/D
80 GND
SUB1 L
79
78 SUB1 R
77 GND
0
76 ADC LOUT
0
75 ADC ROUT
GND
74
0
73 FRIN
0
72 FLIN
IC300
0
BD3470KS2
71 SWIN
0 IC300
70 CIN
0
DIR FUNCTION SELECT
69 SRIN
0
68 SLIN
0
67 SBRIN
0
66 SBLIN
65 GND
64 INR1
63 INL1
0
62 INR2
0
61 INL2
60 59 58 57 56 55 54 53 52 51 50 49 48 47 46 45 44 43 42 41
0 0 0 0 0 0 0 0 0
A_GND
C326 C328
4.7 4.7
50V 50V
R310 R311 R312 R313 R314 R315 R316 R317
1k 1k 1k 1k 1k 1k 1k 1k 1k
W301
2 3 4 5 6 7 8 9 10 1 2 3 4 5
J301
G
6P
R L R L R L R L R
TV PORTABLE VIDEO VIDEO
AUDIO IN AUDIO IN AUDIO OUT AUDIO IN
29 29
11 12 13
MAIN BOARD (1/4)
(Page 27)
7
19 20
OUT_SBR
OUT_SBL
0
GND 21
GND
22
SUB2L 23
SUB2R 24
0
RECL3
25
0
RECR3 26
RECL2
27
RECR2 28
IC950
KIA7907F-RTF/P
RECL1 29
IC950
RECR1
30
-7V REG
GND 31
SBL IN2 32
-7
O
G
SBR IN2 33
C950
D950
SL IN2 34 100
1SR154-400TE-25
16V
SR IN2
35
C IN2 36
C951
SW IN2 37
100
W004
16V
FL IN2 38
7 COM
O
FR IN2 39
GND
40
IC951
KIA7807API-U/PF
IC951
+7V REG
0
R318 R319
1k 1k
6 7 8 9 10
G
L R
SAT/CATV
AUDIO IN
STR-KM5/KM7
Ver. 1.4
14 15 16 17
21 22
MAIN BOARD (4/4)
12
35
(Page 30)
KM7
CN953
6P
SURR BACK
1 GND
AMP
2 GND
3 PREAMP_GND L
BOARD
4 SBR_IN
CN401
5 PREAMP_GND
(Page 45)
6 SBL_IN
-15
I 36
C954
C953
D951
100
0.47 MAIN BOARD
P6SMBJ33A-5
25V
13
(4/4)
C952
(Page 30)
0.47
15
I 37
38