Panasonic SAHT-75-EB, SAHT-75-E, SAHT-75-EE, SAHT-75-EG Schematic

SA-HT75E/SA-HT75EB/SA-HT75EG/SA-HT75EE

SCHEMATIC DIAGRAM - 24

				: +B SIGNAL LINE	: -B SIGNAL LINE	: MAIN SIGNAL LINE
		MAIN CIRCUIT

C422

C420

5600P

0.15

C418

270K

R436

R437

R435

0.1

82K

82K

R434

C419

C421

R438

0.039

15K

0.047

8.2K

<0V>

((0V))

<0V> ((0V)) <0V> ((0V))

-<7.95V>

-((7.97V))

<0V>

((0V)) <0V>

((0V))

<0V>

((0V))

IC402

14

13

12

11

10

9

8

M5228FPE1

+-

VCC-

-+

QUAD OP AMP

SL

SW1 IC402 SW2

SR

-

C/L

+VCC

R

-

Q407

C

+

+

1

2

3

4

5

6

7

KTC3199GRTA

<0V>

((0V))

<0V> ((0V))

<0V> ((0V))

<7.89V>

((7.89V))

<0V>

((0V)) <0V>

((0V))

<0V>

((0V))

MUTING SWITCH

C423

50V1

R440

0.047

R439 15K

0.1

15K

C424

C425

C427

C426

0.1

0.047

R441

R442

39K

39K

R429

Q407

<0V>

R430

33K

R431

C428

SW

1K

C429

<0.73V>

((0V))

18K

16V10

50V1

((0.73V))

<0V>

((0V))

R448 150K

FR

FL

SW_MIX

CENTER_F

+7.5V

-7.5V

SW5V

+VIN2

+10V

VO4

+3.3V

VO5

GND

IC502

1/2- VIN1

VO3

VO2

VO1

+1/2VIN1

+VIN1

IC502

GND

VIN1-

STK470-050A

1

2

((8.84V))

3

4

((0V))

5

6

7

8

9

10

11

12

13

14

C530

35V3300P

C529

35V5600P

C528

35V5600P

C527 35V3300P

HIC

<17.46V>

((17.22V)) <8.8V>

<9.26V>

((9.28V)) <0V>

<0V>

((0V)) <0V>

((0V)) <0V>

((0V)) 29.96V>-< 29.83V))-((

8.57V>-< 8.55V))-(( 7.95V>-<

7.96V))-(( <7.98V>

((7.99V)) <15.09V>

((15.1V))

<16.25V>

((16.26V))

<28.67V> ((28.67V))

R559

2.2

D521

D522

D523

FP549

D527

500

14.7V

D521-D526

+7.5V

C534

D536

1N5402BM21

C536 0.01

R555

1000P

D524

MO9V

R558

C539

R556 1.5K

1.5K

3.9K

D525

16V47

R554

D539

B0BA8R700009

C541

50V4.7

R557 3.3K

C537 25V100

15K

R599

10K

D528

D526

C531

Q541

2.2

0.1

D527-D528,D536

C535

B0EAKM000085

2SB621ARSTA

50V47

-VP VOLTAGE REGULATOR

R550

-7.5V

Q541 ((<--42.9V>42.3V))

C546

C544

50V100

C532

63V100P

-VP <-26.61V>

0.1

((-26.39V))

D546

D545

D544

D543

D542

C542

<-27.21V>

((-27.13V))

C548

R560

25V330

1000P

4.7K

C549

50V10

R561

150

B0BA02600018

D547

C547	C545	C543	D541
63V100P	50V100	25V330

D541-D546

B0EAKM000085

75