Schematic Diagram - Main Section (1/2) - Sony STR-DH500 Service Manual

STR-DH500
5-8. SCHEMATIC DIAGRAM – MAIN Section (1/2) –
1 2 3
MAIN BOARD (1/2) C_OUT
A
B
R560 R878 L878
4.7 1.7uH
0
R879
C545 10
47
C879 R872
D536 R880
100k
0.022
47k
MAZ8056GMLS0
50V
C870
C 0.01
R557
22k
R559 R558
22k 22k
D861
MA2J1110GLS0
Q861
2SA1163L-TE85L R865
D
CURRENT DETECT
15k
0
0 0
R864
1.5k
0
C861
220p
50V R863
0.22
R862
R861
6.2k
4.7k
E
C +VE C -VE
Q853 Q854
MN2488-OPY-MK MP1620-OPY-MK
1 2
1.2 55.5 0 -1.1 -55.7
F
C858
47p
500V
R859
100
R857 R858
82k 560
R856
2.2k
Q852
-0.6
G 2SD2144S-TP-V
POWER AMP
0.5
0.5 -1.1
1.2 -1.1
C857
Q851
47
2SA1115TP-EF
25V
POWER AMP
IC B/D
H
IC601
PRE DRIVER
IC601
STK350-530T-E
15 14 13 12 11 10 9 8 7 6 5 4 3 2
I
-55.3 55.3 55.3 -0.2 -0.2 -0.3 0 0 0
JS807
C854 C855
C853
C852 100p
100p
100p 50V 500V
500V
R802 R852 R854
68k 68k 68k
J
R853
2.2k
R851
1k C862
220
10V
C860
10
50V
K
1 2 3 4 5 6
STR-DH500
• See page 39 for IC Block Diagrams.
4 5 6 7
FR_OUT
SR_OUT
R778 L778 R678 L678
4.7 1.7uH 4.7 1.7uH
R679
R779
10
10
C779 C679
R772
0.022 R672
0.022 R780 R680
100k
100k
50V 47k 50V 47k
C770 C670
0.01 0.01
R866 D761 R766
D661
68k
MA2J1110GLS0 68k MA2J1110GLS0
Q761
Q661
2SA1163L-TE85L R765 2SA1163L-TE85L
R665
CURRENT DETECT R764 R664
15k CURRENT DETECT 15k
1.5k
-44.7 1.5k 0 0 0
0 0 0 -44.7
Q862 Q762 0
0 0 0
2SA1163L-TE85L C661
C761 2SA1163L-TE85L
CURRENT DETECT 220p CURRENT 220p
50V
50V R763 DETECT R663
0.22
0.22
R662
R762 R661
R761
6.2k 6.2k
4.7k 4.7k
SR +VE SR -VE
FR +VE FR -VE
Q753 Q754 Q653 Q654
MN2488-OPY-MK MP1620-OPY-MK MN2488-OPY-MK MP1620-OPY-MK
3 1 2 3 1
1.2 55.5 0 -1.1
0 1.2 55.5 0 -1.1 -55.7 0
C658
C859 C759
C758
47p 47p 47p
47p
500V
500V 500V
500V
R860 R759 R760
R659
100 100 R757 R758 100 100 R657 R658
82k 560 82k 560
R756 R656
2.2k
2.2k
Q752
-0.6 Q652 -0.6
2SD2144S-TP-V
2SD2144S-TP-V
POWER AMP
POWER AMP
0.5
0.5
0.5 -1.1
0.5 -1.1
1.2 -1.1
1.2 -1.1
Q751
C757 Q651 C657
2SA1115TP-EF 47 2SA1115TP-EF 47
POWER AMP 25V 25V
POWER AMP
IC B/D
IC701
PRE DRIVER
IC701
STK350-530T-E
1 15 14 13 12 11 10 9 8 7 6 5 4 3 2
-55.3 55.3 55.3 1.2 -1.1 54.8 -0.3 -0.2 -0.2 -0.3 55 -1.1
C755 C753 C754 C704 C703
3p 3p C752 C702
100p 100p 100p 100p
500V 500V 50V 100p 100p 50V 500V
R754 R752 R702
68k 68k
68k
R753 R703
2.2k 2.2k
C712
C762
R751 R701
220
220 1k 1k
10V
10V
STK ONLY
C760 C710
10 10
50V 50V
7 8
MAIN BOARD (2/2)
(Page 25)
8 9 10
FL_OUT
SL_OUT
FPRD
R628
R728 L728 L628
4.7 1.7uH 4.7 1.7uH
R729
R629
10
10
C729 C629
R722 R622
R630
0.022 R730 0.022
100k
100k
50V 47k
50V
C620
C720
0.01 0.01
R666
R716 D611
D711
68k
MA2J1110GLS0
MA2J1110GLS0 68k
Q711 Q611
2SA1163L-TE85L R715
2SA1163L-TE85L R615
R714 R614
CURRENT DETECT 15k CURRENT DETECT 15k
1.5k 1.5k
-44.7
0 0 0 -44.7 0 0 0
0 Q662 Q712
0 0 0
2SA1163L-TE85L C711 2SA1163L-TE85L
C611
CURRENT 220p CURRENT
DETECT 50V 220p
R713 DETECT R613
0.22 0.22
R711 R712 R612
R611
6.2k 6.2k
4.7k 4.7k
FL +VE FL -VE
SL +VE
SL -VE
Q703 Q704 Q603 Q604
MN2488-OPY-MK MP1620-OPY-MK MN2488-OPY-MK MP1620-OPY-MK
2 3 1 2 3 1 2
-55.7 0
1.2 55.5 0 -1.1 -55.7 0 1.2 55.5 0 -1.1
C659 C708 C709
C608
47p 47p 47p 47p
500V
500V 500V 500V
R660 R709 R710 R609
100 R707 R708 100 R607 R608
100 100
82k 560 82k 560
R706
R606
2.2k
2.2k
Q702
Q602
-0.6 -0.6
2SD2144S-TP-V 2SD2144S-TP-V
POWER AMP POWER AMP
0.5 0.5
0.5 -1.1 0.5
-1.1
1.2 -1.1 1.2 -1.1
Q701 C707 Q601 C607
47 47
2SA1115TP-EF 2SA1115TP-EF
25V
POWER AMP 25V POWER AMP
IC B/D
IC801
PRE DRIVER
IC801
STK350-530T-E
1 15 14 13 12 11 10 9 8 7 6 5 4 3
1.2 -55.3 55.3 55.3 1.2 -1.1 54.8 -0.3 -0.2 -0.2 -0.3 55 -1.1
C705 C655 C653 C654 C604 C603
3p 3p 100p 100p C652 C602 100p 100p
100p 100p
500V 500V 500V 50V
R704 R654 R652 R602
68k
68k 68k 56k
R603
R653
2.2k
2.2k
R546 C662
R651 R601 C612
0.47 220 220
1k 1k
10V 10V
C660
C610
10
10
50V
9 10
24 24
11 12 13 14
FR_OUT
JS320
Q320
Q321
2SA1163L-TE85L
PROTECTOR 2SC3052EF-T1-LEF FL_OUT
PROTECTOR
-47.1
3.3
0
0 C320
R320
220
100k
10V
D327
MC2838-T112-1
47k
R327
10k
R325
Q325
6.8k
2SC2713G-TE85L
PROTECTOR
2.9
-48.4
-55.9
D326
MC2838-T112-1
R616
68k
-44.7
C325
R326
10
Q612
39k
50V
2SA1163L-TE85L
0 CURRENT DETECT
R328
1k
3
-55.7 0
PHONES
C609
47p
500V
R610
100
2 1
1.2
C605
3p
500V
R604
68k
11 12 13 14 15 16 17
MAIN BOARD (2/2)
(Page 25)
15 16 17
R392
680
RY375
2W CN792
12V
5P
CL939
1 HP DETECT
6 5 CL940
3 R-CH
4 GND
4 3
CL941
5 L-CH
R393
2
680 1
2W
D375
MA2J1110GLS0
15.6
Q375
0
2SC3052EF-T1-LEF
R378
47k
R375
2.2k
HEADPHONE BOARD
CNP790
6
4P
7
2
J790 1 HP_DETECT
1
5
2 HP_R
4
3
3 HP_GND
4 HP_L
TP790
(CHASSIS)