PANASONIC SA-AK24NA, SA-AK24 Schematics

HP_L(R)

SIL(R)

SER1

SER3

9

Q400(Q200)

MUTING

Q306

MUTING

CONTROL

MUTEA

+B

SER1

3

CLK

2

DATA

VCC16

GND1

IC302

M5218AP

BUFFER

AMP

CONTROL
CIRCUIT

IC602

BU2090AF-E2

I/O EXPANDER

IC301

M62456FPE1

BTL IC

LVL1

LVL2

CD

SW_LED

TAPE

LATCH

TUNER

OUTPUT BUFFER

12-BIT SHIFT REGISTER

+B

M38199MF227

Q607

RCH

15

14

13

9

11

12

/RESET

35

RESET

CONTROL

+

2324

HPF2-1

HPF1-1

1

LV1

LV2

D601

D603

D600

D602

Q352

SWITCH

(DETECT)

Q311

DC

DETECT

Q307

SWITCH

(COMPARATOR)

IC600

NF2

HPF2-2

­+

+

-

HPF1-2

32

SER2

+

-

NF1

+

+B

+B

D313

32

DCDET

SYSTEM CONTROL/FL DRIVE

+B

SER1

+

-B

1516

2122

OUT2

OUT1

4

1920

CIN

VEE

VEE

VCC

VCC

LRNF

5

6

+B

1718

VR

LROUT

B1

7

B2

8

D315,D317

HPF3-1

LEVEL1

9 10

RCH

14 13

LPF1

LPF2

HPF3-2

-

-

+

+

+

-

LEVEL2

INVLPF

GND

12

11

LV1

LV2

MUTEA

IC601

3

2

16

1

KEY SW

5~8

KEY4

BU2090AF-E2

I/O EXPANDER

CLK

DATA

VCC

GND

KEY1

RMT

31

Z602

CONTROL
CIRCUIT

MUTE_A

3D_AI

REC/

PLY_TIM

LATCH

LED_CTL

OUTPUT BUFFER

12-BIT SHIFT REGISTER

PCONT 7

+B -B -B

100 98

VREF

VSS

40

8

5

10

11~15G5~G1

/CD

4

9

VEE

Q602

POWER

SUPPLY

99

+B

+B
+B

+B

AVSS

34

SYNC

33

ECONO

SIL(R)

DCDET

/CD

SYNC

/CD

A

PCONT

HP_L(R)

DCDET

PCONT

SYNC

SIGNAL LINES

IC500

RSN309W44A

POWER AMP
(HIC)

Rch

MAIN SIGNAL LINE
FM OSC SIGNAL LINE
FM SIGNAL LINE

18 +CIN

26 SIL

SIR25

23(22)

LIN(RIN)

24

IN GND

+COUT

12

+

19

-CIN

SENS

-DI

16

-B

Q503,Q505

DC

DETECTOR

­+

­+

­+

-VD

21

Q504

REGULATOR

+VCC

+DI

SENS1015

+VCC LOW

LOUT

(ROUT)

AC IN

-VCC

LOW

-VCC

7

20

+VD

3

HI

6

GND

1

SOL

2

SOR

5(8)

IN

14

DET

9

4

HI

-B

CD SIGNAL LINE
AM OSC SIGNAL LINE

AUX SIGNAL LINE

Q506

REGULATOR

+B

D519

+B

Rch

-B

RL500

AM SIGNAL LINE
FM & AM SIGNALS LINE

+B

SPEAKER

HIGH CH

(6 W)

+

LCH

-

SPEAKER

LOW CH

(6 W)

+

LCH

-

D525

IC501

STK470-020A

REGULATOR

+B

-B

15

16

17

18

19

PLAYBACK SIGNAL LINE
RECORDING SIGNAL LINE

+B

Q515

D521

14

REGULATOR

13

D522,
D528

D508

12

11

+

10

-B

9

8

+

7

6

+B

5

+B

Q516

4

3

2

1

SWITCH

(BIAS TRANS)

Q509

+B

SWITCH

+

SUPPLY

+B

+B

JK600
HEADPHONE

Q611

POWER

SUPPLY

CONTROL

Rch

Q610

POWER
SUPPLY

Q510

SWITCH

(HEADPHONE)

+B

Q978

SWITCH

(POWER)

E500

D979,D990

Q977

REGULATOR

+B

T501

-B

D529~D535

D523

Q512

D527,

RELAY
DRIVE

Q501

REGULATOR

D514,D516

RL501

+B

D977

RL502

POWER TRANSFORMER

T502

Q975
RELAY

DRIVE

JK500
AC IN

F1

+B

TO

FL DISPLAY