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

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