Schematic Diagram - Main Board (3/4) - Sony STR-DH520 Service Manual

STR-DH520
4-10. SCHEMATIC DIAGRAM – MAIN Board (3/4) –
1 2 3
A
MAIN BOARD (3/4)
+3.3V 1
NC 2
B
DGND 3
REG_TEMP 4
CL300
HP_RY 5
CL301
PREOUT_SW_ RY 6
CL302
FL-FR_RY 7
DIGITAL
CL303
SBL-R_RY 8
BOARD
CL304
BRIDGEABLE_RY 9
B
CL305
(4/4)
C-SLR-RY 10
CL306
C
CN2105 PROTECTOR 11
CL307
LIMITER 12
(Page 29)
CL309
HP_DET 13
CL308
+15V_TUNER 14
CL310 R450 220
EVOL_DATA 15
CL311 R449 220
EVOL_CLK 16
CL312 R388 1k
VIDEO2_R 17
CL313
AGND 18
CL314
D VIDEO2_L 19
R389 1k
CNP410
19P
CNP411
E 19P
CL315
+7V 1
NC 2
CL329
-7V 3
CL316 C546 10 50V
ADCL OUT 4
AGND 5
CL317
AGND 6
CL318 C547 10 50V
ADCR OUT 7
DIGITAL
CL319 C380
10 50V
F DAC FR IN 8
BOARD
CL320 C381 10 50V
DAC FL IN 9
C
CL321 C382 10 50V
(4/4)
DAC SW 10
CL322 C383 10 50V
CN2114 DAC C 11
CL323
C384 10 50V
DAC SR IN 12
(Page 29)
CL324 C385 10 50V
DAC SL IN 13
CL333 C386 10 50V
DAC SBR IN 14
CL325 10 50V
C387
DAC SBL IN 15
CL326
DCAC 16
G
CL327
TUNER_R 17
CL328
TUNER_L 18
TUNER_L 19
R357
1k
(UK, TW, AUS, ECE)
H
C507
R503
22 16V
10k
R506
R505
47k 1k
C505 C506 C501
33p 1 47 16V
I
0 0 0 0
IC500
NJM4565M-D
5 6 7 8
IC B/D
R517
IC500
47k
DCAC
OPERATION
AMPLIFIER 4 3 2 1
(DCAC AMP)
0 0 0 0
J
C508
R510 R500
1 50V
56k 1k
R507 C510
R508 C514
6.2k 33p
6.8k 2200p
C504
22 16V
K
STR-DH520
• See page 45 and 46 for IC Block Diagrams.
4 5 6 7
MAIN BOARD (1/4)
(Page 20)
4
17
18
HP
SW
LR
SBL_R
BRIDGE
C_SUR
PROTECTOR
HP_DET
C450 100p
C449 100p
C388 220p
C389 220p
CLK
DATA
0
GND
80
79 SUB1 L
SUB1 R
78
0
77 GND
0
C398 100p
76 ADC LOUT
0
75 ADC ROUT
C399 100p
0
GND
74
C390 3300p
R380 1k 0
73 FRIN
C391 3300p
1k 0
R381
72 FLIN
C392 3300p
R382 1k CL381 0
71 SWIN
C393 3300p
R383 1k CL382 0
CIN
70
C394 3300p
R384 1k 0
SRIN
69
C395 3300p
1k
R385 0
68 SLIN
C396 3300p
R386 1k 0
SBRIN
67
C397 3300p
R387 1k CL392 0
SBLIN
66
R348 15k
0
R354 0
65 GND
0
64 INR1
0
63 INL1
0
62 INR2
0
61 INL2
FB501
1kohm
R512
4.7k
R518
47k
C502
R514
1
4.7k CL380
50V
(UK, TW,
C521
AUS, ECE)
100p
R515
C503 R516 R928
10 4.7k 4.7k 100
50V
CC21 CC20
100p
100p
R
SA-CD/CD
AUDIO IN
J406 J407 L
AUTO CAL MIC
PORTABLE IN
(MINI JACK)
8 9 10
MAIN BOARD (1/4) MAIN BOARD (2/4)
(Page 20) (Page 21)
5 6
22 19 20 21 23 24 25 26
C488
0.1
C489
C499
2200p
2200p
7 0 0 0 -7 0 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
0
GND
21
0
GND
22
SUB2L 23
SUB2R
24
0
RECL3
25
0
RECR3 26
RECL2
27
RECR2
28
IC400 RECL1
29
BD3470KS2
RECR1 30
IC400
0
GND
31
DIR FUNCTION SELECT
0
SBL IN2
32
0
SBR IN2 33
0
SL IN2
34
0
SR IN2
35
0
C IN2
36
0
SW IN2 37
0
FL IN2
38
0
FR IN2
39
0
GND 40
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 0 0 0 0 0 0 0 0 0 0 0
A_GND
C408 C458
4.7 4.7
CL376 CL378
CL377 CL379
50V
50V
R408 R458 R403 R453 R405 R455
1k
1k 1k 1k 1k 1k
W002
1 2 3 4 5 6 7
R
TV
AUDIO IN
L J401
L R L R L R
J409
VIDEO VIDEO SAT/CATV
AUDIO OUT AUDIO IN AUDIO IN
22 22
11 12 13 14
IC352
KIA7907PI
IC352
-7V REG
-7 -15
O I
G
C353
D352 C352
100
1SR154-400TE-25 0.47
16V
C351
C350
100
0.47
16V
7 COM 15
O I
IC350
KIA7807API-U/PF
IC350
C471 +7V REG
10
50V
R467
100k
R302
100
R301
2.2k
D301
RY301
0.7
DA2J10100L R304
47k
0
Q301
2SC3052EF-T1-LEF
R470
RELAY DRIVER
47k
R466
1k
C405
2200p
C400
2200p
G
J405
SUBWOOFER
AUDIO OUT
15 16 17
MAIN BOARD
35
8
(4/4)
36 (Page 23)
37
MAIN BOARD
9
(4/4)
(Page 23)
38
39