Schematic Diagram - Main Section (2/4) - Sony STR-DH710 Service Manual

4-12. SCHEMATIC DIAGRAM — MAIN Section (2/4) —
1 2 3
MAIN BOARD (2/4)
7
A
8
MAIN
BOARD
9
1
(1/4)
10
(Page 24) 11
12
13
14
B
[FR]
R779
10
1
R772
R778 L778
100k
4.7 1.7uH
2
C770
C779
0.022 0.01
C
R770 R765
47k 15k
Q761
2SA1514K(S)
CURRENT DETECT R764
1.5k
0 0
D
-1
C761
220p
R762
R761
4.7k 6.2k
FR +VE
E
Q753
MN2488-OPY-MK
B C E
MAIN
1.1 58.4 0
BOARD
2 15
(1/4)
16
(Page 24)
C758
47p
F
R759
100
R757
82k
R756 0.4
2.2k
-0.6
-1
G
1 0.4
Q751
2SA1175-HFE
POWER AMP
C757
35V
H
I
17
18
19
MAIN
BOARD
3
(1/4)
J
(Page 24)
20
K
STR-DH710
• Refer to page 13 for Circuit Boards Location.
4 5 6
[SR]
R780 R766 R680 R666
R679
47k 68k
10 47k 68k
2
R672
R678 L678 R728
100k
4.7 1.7uH 4.7
1
C679 C670
0.01
0.022
R670 R665
15k
47k
Q762 Q661 Q662
2SA1514K(S) 2SA1514K(S) 2SA1514K(S)
CURRENT DETECT CURRENT DETECT R664 CURRENT DETECT
1.5k
0 0 0 -0.8
-0.9 0
-0.8 -58.7
-58.5
C661
220p
R763
R663
0.22
0.22
R661 R662
6.2k
4.7k
SR +VE SR -VE
FR -VE
Q754 Q653 Q654
MP1620-OPY-MK MN2488-OPY-MK MP1620-OPY-MK
B C E B C E B C E
1.1 58.4 0 -1 -58.4 0
-1 -58.4 0
C658 C659
C759
47p 47p
47p
R659
R660
100
R760
100
100 R657 R658
R758
82k 560
560
R656 0.4
2.2k
Q752
2SD2144S-V
POWER AMP
-0.6 -1
-1
-1 Q652
2SD2144S-V
POWER AMP
1 0.4
Q651
2SA1175-HFE
POWER AMP
C657
47
25V
IC B/D
47
IC701
PRE DRIVER
IC701
STK350-630T-E
15 14 13 12 11 10 9 8 7 6 5 4 3 2 1
-58.4 58.4 58.4 1.1 -1 -57.4 0 0 0.1 0.1 -57.4 -1 1.1
C753 C703
22p
22p
C755
C752 C702 C705
5p
5p
100p 100p
R754
R752 R702
R704
68k 68k 68k
68k
R703
R753 R751 R701
2.2k 1k 2.2k
1k
C762
C760 C710 C712
220
10 10 220
10V
50V 50V 10V
[FR] [FL]
21 22
7 8 9 10
[FL] [SL]
R729 R730 R716
R629
10 47k 68k
10
1 2
R722
R622
L728 R628 L628
100k
100k
1.7uH 4.7 1.7uH
2 1
C729 C720 C629 C620
0.01
0.022 0.01 0.022
R620 R615
R715
R720
47k 15k
15k
47k
Q711 RN-CP Q712
Q611
2SA1514K(S) 2SA1514K(S) 2SA1514K(S)
R714
CURRENT DETECT CURRENT DETECT R614
CURRENT DETECT CURRENT DETECT
1.5k
0 0 -0.8 0 1.5k
0 0
-0.9 -58.7
-1
C711 C611
220p 220p
R713 R613
0.22 0.22
R712 R612
R711 R611
6.2k
6.2k 4.7k
4.7k
FL +VE FL -VE
SL +VE
Q703 Q704 Q603
MN2488-OPY-MK MP1620-OPY-MK MN2488-OPY-MK MP1620-OPY-MK
B C E B C E B C E B
1.1 58.4 0 -1 -58.4 0 1.1 58.4 0 -1 -58.4
C708 C709 C608
47p 47p 47p
R710 R609
R709
R607
100 R608
100 100
R707 R708 82k 560
82k 560
R606
0.4
R706 0.4
2.2k
Q702
2.2k
2SD2144S-V
POWER AMP
-0.6
-1
Q602
-1 -0.6 -1 -1
2SD2144S-V
POWER AMP
Q601
2SA1175-HFE
1 0.4 1 0.4
Q701 POWER AMP
2SA1175-HFE
POWER AMP
IC B/D
C707
C607
47
47
35V
IC801 35V
PRE DRIVER
IC801
STK350-630T-E
15 14 13 12 11 10 9 8 7 6 5 4 3 2 1
-58.4 58.4 58.4 1.1 -1 -57.4 0 0 0.1 0.1 -57.4 -1 1.1
C605
C655 C603
C653 5p
22p
5p 22p
R604
R654
68k
68k
C652 C602
R603
100p 100p
2.2k
R546 R545 R653
2.2k
0.47 0.47
R652 R602
68k 68k
C662 C612
R651 R601
220
220
1k
1k
10V
10V
C660 C610
10 10
50V 50V
[SR] [SL]
23 24
6
MAIN BOARD
(3/4)
(Page 26)
25 25
11 12 13
R392
680
R393
680
R630 R616
47k 68k
Q612
2SA1514K(S)
-1 0
-58.2
SL -VE
Q604
Q320
2SA1514K(S)
C E
PROTECTOR
0 0
Q321
3.3
0
2SC3052EF-T1-LEF
-57.6 PROTECTOR
C320
0 R320 0
220
100k
10V
C609
47p
C323
R323
220
0 100k 0
R610
10V
Q324
Q323
100
2SA1514K(S) 2SC3052EF-T1-LEF
-57.6 3.3 PROTECTOR
PROTECTOR
0 0
D327
MC2838-T112-1
R327
10k
R325
D326 6.8k
MC2838-T112-1 Q325
2SC2713-G
-57.8
PROTECTOR
4
C325 -57.8
R326
10
39k 50V
R328
1k
25 26 27 28 29 30
7
MAIN BOARD
(4/4)
(Page 27)
STR-DH710
14 15 16 17
CNP792
4P
CL364
FR_OUT HP Detect
1 HP DETECT HEADPHONE
SB_OUT
BOARD
2 HP-R A
GND CL362
CN790
C_OUT
3 GND
(Page 45)
SR_OUT
4 HP-L
CL363
FL_OUT 6
5
4 3
SL_OUT
2 1
RY375
12V
D375
MA2J1110GLS0
Q375
2SC3052EF-T1-LEF
RELAY DRIVER
15.6
0.2
R377
56
R378
47k
R375
2.2k
HP
Protector
31 32 33
8
MAIN BOARD
(4/4)
(Page 27)