Schematic Diagram - Main Board (4/4) - Sony STR-K790 Service Manual

STR-K790
Ver. 1.1
Q Q
4-17. SCHEMATIC DIAGRAM – MAIN BOARD (4/4) –
3 7 6 3 1 5 1 5 0
POWER AMP
R500
47k
C554 C553
C500
2.2 100p 100p
500V 50V
C501 100V
4.7 R501
1k
50V
C502 R502
100p 68k
C557
3p 500V
100
R553
10V
2.7k R554
C551 C552 R552
4.7
100p 68k
50V C507
100
R551 10V
1k
POWER AMP
(Page 27) R600
47k
C654 C653
100p 100p
C600
500V 50V
C601 2.2
4.7 R601 100V
50V 1k
T E
L 1 3 9 4 2 2 9 6 5 1 3
C602
R602
100p
68k
C657
R653
100
10V 2.7k
R654
C651
C652 R652 C607
4.7 100
100p 68k
50V 10V
R651
1k
w w w
STR-K790
Q503,Q504,Q553,Q554,
Q603,Q604,Q653,Q654
BOOSTER
Q503
MN2488-OPY-MK
C511 37
Q501,Q502,Q551,Q552,
47p
Q601,Q602,Q651,Q652 1.1
LIMITER 500V
Q501
R508
2SA1115TP-EF 0
100
R506
1 R505
82k R510
2.2k
0.4 0.22
C508
47
25V
-1
0.4
IC501
Q502 -0.6
STK350-530T-E R512
2SC3623
6.2k
ATP-LK
-1
R507
560
R509
0
100
Q504
MP1620
C512 -1 -OPY-MK
47p
-37
500V
C504 C562
-37
100p 47p
C503 500V -1
500V
100p MP1620
C506 -OPY-MK
50V R559
3p 500V
100
0
JW500
C556
R557
-1
Q552 560
68k
2SC3623
R562
ATP-LK 6.2k
R504 68k -0.6
0.4
R503
2.7k -1
C558
47
25V
0.4 R560
R556
R555
0.22
1.1 82k
2.2k
IC601 Q551
R558 0
STK350-530T-E
2SA1115TP-EF
100
MN2488-OPY-MK
C561 1.1
47p
37
500V
C611
37
47p
500V 1.1
MN2488
Q601 -OPY-MK
R608
2SA1115TP-EF
100 0
1.1 R605 R606
R610
2.2k 82k
C604
0.4 0.22
100p
C603 500V
100p
C606 -1
50V
3p 500V
0.4
C608
Q602 -0.6
R612
47 2SC3623
25V 6.2k
JW600 ATP-LK
R607
-1 560
C656
3p 500V
68k
R609 0
R603 R604
100 Q604
2.7k 68k
MP1620
-OPY-MK
C612 -1
47p
-37
500V
C662
-37
47p Q654
500V -1.1
MP1620
-OPY-MK
R659
0
100
-1.1 R657
Q652 560
2SC3623
R662
ATP-LK
6.2k
-0.6
0.4
-1.1
C658
47
0.4
25V R660
R656
R655
1.1 0.22
2.2k 82k
Q651
2SA1115TP-EF R658 0
100
Q653
MN2488
C661 1.1 -OPY-MK
47p
37
500V
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Q505,Q506,Q555,Q556,
Q605,Q606,Q655,Q656
CURRENT DETECT Q507
2SC1815 GR-TPE2
AF POWER
PROTECT
R511 C513 D502 4.1
0 R515 C514
4.7k 220p 1SS133T-72 R518
0.01
22k 0 R519
Q505 22k
22k
2SA1038S
-RSE-TP
0
R516 R517
-1.5
C515
R513 3.3k 15k
D501 10
1.5k
50V
1SS133T-72
R514
15k
R529
-1.7
47k D529
1SS133T-72
0 Q506
C516
2SA1038S
0.022
-RSE-TP C529
R522 R539
0.01
-37 47k 100k
R521
10
R520
68k
Q554 R570
R550 D549
68k R571 C549
100k
10 0.01 1SS133T-72
-37
Q556
0 R572
2SA1038S
47k
-RSE-TP
R549
C566
47k
-1.1 0.022
R564
15k
R563 D551
R567 C565
1.5k 1SS133T-72
R566 10
15k
3.3k
-1.1 50V
Q557
0 Q555
2SC1815 GR-TPE2
2SA1038S
-RSE-TP R565 C564 0 AF POWER
R561 D552
22k PROTECT
0.01 1SS133T-72
4.7k 0 4.1
C563 R569
22k
220p
Q553
R568
22k
Q603
R618
22k
R619
22k
C613
R611 0 4.1
220p R615 C614 D602
4.7k Q605
0.01 1SS133T-72 0
22k
2SA1038S
-RSE-TP
Q607
0
2SC1815 GR-TPE2
Q Q
-1.5 C615
R616 R617
10 AF POWER
R613 D601 3.3k 3 7
15k
1.5k 1SS133T-72 50V PROTECT
R614
15k
-1.5
C616
Q606 0.022
2SA1038S
0 -RSE-TP
-37
R620
R621
68k
10
R670 R671
68k 10
-37
Q656 R672
0
2SA1038S 47k
-RSE-TP
C666
-1.1 0.022
R664
15k
D651
C665 Q657
R663 1SS133T-72 R666 R667
2SC1815 GR-TPE2
10
1.5k 3.3k 15k
50V
-1.1 AF POWER
Q655 PROTECT
0
2SA1038S
-RSE-TP R665 C664 D652 0
C663 22k 0.01 1SS133T-72
R661
0 4.1
4.7k 220p R669
22k
R668
22k
(Page 29)
u 1 6 3
y
30 30
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2 4
8 9 9
R532
680 1W
R531
680 1W
R793
82
D791
1SS133T-72
RY551
RELAY
12V
R574 0.1
D553
82 1SS133T-72
Q608 0.7
2SC1740S-QRT
R791
RELAY DRIVE Q509
0.1
2.2k
2SC1740S-QRT
0.7
RELAY DRIVE
R625
2.2k
Q881,Q883
PROTECT SWITCH
C881
R881 0
47k
10V
D881
0 1SS133T-72
0
Q882
3.3
2SC1740S-QRT
0
Q881
D884
-37 2SA1038S
1SS133T-77
-RSE-TP
R882
10k
R883
6.8k
D882
3.3
1SS133T-72
-37.4
Q883
2SC1841
TP-PAFAEA
C882
R884
10
39k -37.6
50V
R885
D883
1SS133T-72 1k
6 3 1 5 1 5 0 8 9
RY601
RELAY
12V
D603
R624
1SS133T-72
82
R843
22k RR11 CC11
C842
R840 10 0.01
47
6.8k
25V
R844
CC12
22k RR12
0.01
10
D841
MTZJ-T-72-5.6C
CC13
RR13
VACS 10 0.01
CONTOROL
m
c o
.
2
8 9 9
CN701
4P
J
HEADPHONE
RY502
RELAY BOARD
12V
CNP790
(Page 34)
TM602
TM602
FRONT
SPEAKERS
IMPEDANCE
2 4 9 8 2 9 9
USE 6-16
CENTER
No mark:FM