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SCHEMATIC DIAGRAM-3 B MAIN CIRCUIT
D756 MA700ATA D757 MA700ATA

: POSITIVE VOLTAGE LINE

: NEGATIVE VOLTAGE LINE
7.6V -10.4V

:AUDIO SIGNAL LINE
7.6V R570 2.2M C552 0.01 L605 R558 1K B C554 16V220 R559 4.7K -10.4V -10.4V 0.3V R557 10K R591 4.7K 7.6V -10.4V R649 10 JK601 C635 0.047

IC601 RSN309W44B
POWER AMP

Q555 2SD2144STA
SIGNAL LEVEL DET.

SPEAKERS

Q554 2SA1995RSTA
SIGNAL LEVEL DET. D555 MA4100MTA 7V 7.6V D 0V

L601 R639 10 C629 C627 R651 0.1 0.1 10 C631 C621 R641 0.1 0.1 10

HF(6

) Lch

www.DataSheet4U.com

D552 MA165TA

C637 0.047

Q551 2SA1995RSTA
SIGNAL LEVEL DET. C551 50V2.2 R556 100K

LF(8

)

R561 100K C550 0.01

L606 R650 10 A

D551 MA165TA

JK602 C636 0.047

26 0V 470P

25 0V 470P

24

23 0V 470P

22 0V 470P

21 1000P

20 1000P

19

18

17

16

15

14

13

12

11

10

9 0V

8 0V

7

6

5

4

3

2

1 0V

-47.2V 47.2V

-29.7V 29.4V -0.2V 0V

-29.3V 28.9V 0V

-59.5V 59.5V 0V

HF(6

) Rch

R548 1K

L602 R640 10 C

D602 SB360L6508

C603

C604

C607

C608

C649

C650

R627 470K

D658 MA165TA

C630 C620 R642 0.1 0.1 10

C628 C626 R652 0.1 0.1 10

C632 0.047

C648 1000P

D601 SB360L6508

C616 50V0.47

N

LF(8

)

B

R608 C614 R607 C613 R610 C612 R609 C611 R604 3.3K

56K 47P 56K 47P 150K 15P 150K 15P

C553 50V0.47

R551 68K

R552 68K

R553 3.9K

R554 3.9K

R555 1.5K

R624 150K R623 R622 R621 120K 120K 150K

A

A

B C D

A B

CP602 1 2 3 4 5 6 7 8 J I

C

R618 4.7K

R628 C622

22K 10V100 C724 0.047

Q710 2SC3940AQSTA
R797 0 5.1V REGULATOR 7.6V 30.1V C723 0.047 R729 220 D725 MA4082LTA R769 0 R727 3.9K R767 4.7

5.1V 0V

W722A D E F G W721A R722 2.2 R721 4.7 1 2 3 4 5 6 7 8 9 10 1 2 3 4

8.1V

D659 MA165TA

PROTECTOR L K R572 15K R544 10K D558 MA165TA 0V

R719 3.3K

Q601,602 2SC5398RSTA

D657 MA165TA

C721 10V100

Q601

0V

Q602

D607 1SS291TA

R635 2.2K

R637 15K

R638 68K

0V

C619 0.1

A C D H F E B

C618 0.01

Q671 2SD1859QRTV2
REGULATOR 47.2V 59.5V R671 2.7K C671 0.1 R647 2.2

SWITCHING

C709 0.1

Q503 2SC5398RSTA

14.7V

-10.4V R674 53.6K

Q672 2SD1859QRTV2
STABILIZER 0.6V 47.7V C673 100V1

47.7V

D703 1N5402BM21 D761 D753 RL1N4003N02 RL1N4003N02 D751 1N5402BM21 D701 1N5402BM21 G C703 35V3300

CN781 1 2 3 4 5 6 7 8 9 10

R675 56.2K

-47.2V C617 0.01

-59.5V

R648 2.2

C639 1000P F C640 1000P C641 1000P

C POWER SUPPLY CIRCUIT
E601 1 2 3 4 5 6 7 8 9 10 W701B 29.2V C710 0.047 R749 1K

R672 2.7K

R738 3.9K M

REGULATOR

R673 330

C672 0.1

-47.7V Q673 2SB1417PQTA

C701 35V4700

D673 MA4180LTA

Q708 UN4211TA
2.1V C705 0.01 SWITCHING (POWER) 0V R776 10K

D702 1N5402BM21

D752 1N5402BM21

C704 35V3300

G

D672

C720 0.047

D739 MA165TA

R724 3.9K

SWITCHING (POWER) 0V 0.7V R739 47K D671,672 MA4140MTA

D755 D754 RL1N4003N02 RL1N4003N02

Q709 2SD2144STA

D704 1N5402BM21 E C761 0.1

Q711 2SB1548PQAU
REGULATOR 10.4V 14.1V C722 25V100

Q702 2SB1548PQAU
REGULATOR -10.4V -30.1V

Q701 2SD2374PQAU
REGULATOR 14.7V 29.2V C719 0.047 R725 10 D723 MA4150HTA R723 5.6K

C642 1000P C732 0.022 D738 MA165TA D730 MA4091HTA

D671

D C702 35V4700

R768 100

13.6V

R720 3.9K

-11V

15.2V C717 16V33 -11V C718 25V100

10.2V C734 50V3.3

A B

C

9.6V

D758 MA165TA

C647 1000P

R765 220

E602

Q725 2SC5398RSTA
STABILIZER

-0.6V

Q705 2SA1995RSTA
STABILIZER

14.7V

SA-EH580(EE,EG,EP) MAIN, POWER SUPPLY CIRCUIT DIAGRAM

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