Schematic Diagram - Main Board (2/4) - Sony STR-DN840 Service Manual

5-20. SCHEMATIC DIAGRAM – MAIN Board (2/4) –
1 2 3
MAIN BOARD (2/4)
A
10
9
11
B
12
8
MAIN BOARD
1
(1/4)
(Page 38)
C
4
6
1
5
7
D 2
3
E
F
MAIN BOARD
14
2
(1/4)
13
(Page 38) 15
G
25
MAIN BOARD
26
5
(4/4)
27
(Page 41)
28
29
H
B,FL,V,RY 1
PROTECTOR 2
ACLASS 3
SBL/SBR 4
FOR REFER SR/SL 5
INDICATION
C 6
FL/FR 7
CHASIS 8
I
PHASE 9
DIG 10
GP801
10P
J
K
STR-DN840
4 5 6
Q320
2SA1514KT146S
Q321
PROTECTOR
2SC3052EF-T1-LEF
PROTECTOR
-62
3.3
0
0
C320
R320
220
22k
10V
C323
R323
220
22k
10V
Q323 0
2SA1514KT146S
0
PROTECTOR
Q324
-62 3.3
2SC3052EF-T1-LEF
PROTECTOR
R327
10k
-62
D326
BAV70
C325
R326
10
R328
39k
50V
1k
R360 R355
2.2k 1k
R363 R358
47k 47k
0.8 0.8
Q360 Q355
0.2 0.2 0.2
2PD601ART 2PD601ART
RELAY DRIVER RELAY DRIVER
D360 D355
DA2J10100L DA2J10100L
RY360 RY355
12V 12V
1 2 1 2
4 4
3 3
5 6 5 6
W001
CC17 CC18 CC15 CC14
0.01 0.01 0.01 0.01
RR17 RR18 RR15 RR14
10 10 10 10
TB503 TB502
1 2 5 3 4 1 2 5 3 4
4P
R L R L
SURROUND BACK/ BI-AMP/ SURROUND
FRONT HIGH/ FRONT B
SPEAKERS
7 8 9 10
HP_DET
R392
330
FR_OUT
FL_OUT
R394
330
D327
BAV70
PROTECT
R325
6.8k
3.3
Q325
2SC2713-G
PROTECTOR
-62 14
Q375
2PD601ART
RELAY DRIVER
HP
R367 R350
1k 2.2k
R366 R353
47k 47k
0.8 0.8
Q365 Q350
0.2
2PD601ART 2PD601ART
RELAY DRIVER RELAY DRIVER
D365 D350
DA2J10100L DA2J10100L
RY365 RY350
12V 12V
1 2 1 2
4 4
3 3
5 6 5 6
CC13 CC12 CC11
0.01 0.01 0.01
RR13 RR12 RR11
10 10 10
TB501
1 2 7 3 4 5 6 8
4P 6P
CENTER R L
FRONT A
39 39
11 12 13
R393
330
R395
330
6 5
4 3
2 1
RY921
12V
D375
DA2J10100L
0
R378 D910 - D913
47k 1SR154-400TE-25
R375
D910
2.2k
D911 D912 C910
0.47
C911
0.47
D913
D921
D5SBA60-F
C914
C930
0.22
10000
71V
C931
10000
7
71V C915
6
0.22
8
4
3
5
1 2
RY920
R920
33
D920
DA2J10100L
R921
0.1
2.2k
0.8
R925
RELAY DRIVER
47k
STR-DN840
14 15 16
MAIN BOARD
6
30
(3/4)
(Page 40)
CN391
4P
HEADPHONE
CL364
1 HP DETECT
CL362 BOARD
I
2 R-CH
CN107
3 GND
CL363
4 LCH
(Page 50)
C322
0.01
CL354
CNP930
F910
POWER
5P
2.5A 250V
CL366
1 R2 AC
TRANSFORMER
2
J (MAIN)
CL367
3 CENTER TAP
T901
4 NC
CL368
R2 AC (Page 47)
5
F911
2.5A 250V
CNP920
F912 5P POWER
6.3A 250V CL369
R1 (UPPER TAP)
TRANSFORMER
CL370
R1 (LOWER TAP)
K
CL371 (MAIN)
R1 GND
CL373
T901
R1 (LOWER TAP)
CL372
R1 (UPPER TAP)
(Page 47)
F913
6.3A 250V
Q920
2PD601ART
17