Panasonic SA-AK18 Service Manual

OPTICAL PICKUP

SEMICONDUCTOR

LASER

+B

PHOTO DETECTOR

E E

D C

A B

D C

F F

RF

IC701

+B

+B

AN8839NSBE2

SERVO AMP

8

9

10

11

RF

RFIN

CSBRT

CEA

6

LPD

+B

ENV

19

OFTR

3

ENV

Q701

+B

DET.

TENV

7

OFTR

17

LASER

LD

+

OFTR

POWER DRIVE

-

BDO

BDO

12

BDO

DET.

-

+B

RF

/RFDET

15/RFDET

+B

+

DET.

FEN

25

4

PDA

-

Ach

A

+

FEOUT

24

+B

VCBA

Subtracter

-

FE

13

LDON

-

+

VCC

3

Bch

+B

+ B

+B

+B

5

PDB

Vref

-

VREF

26

+B

+

+B

+B

GND

14

1

PDE

-

+B

Ech

Subtracter

-

+

+

+B

+B

VCBA

+B

+

-

2

PDF

-

+

N.C.

18

-

+B

+B

F

Fch

-

+

PDOWN

+

+B

TBAL

FBAL

TEIN

TEOUT

N.C.

27

28

22

16

23

21

TRACKING FOCUS COIL COIL

LDON	TBAL
	RF

47

DSLF

	FBAL					+B
48	4	80	50		60	72
PLLF	DV DD1		SSEL	AV DD2	V DD	AVDD1

TE
+B
SYNDROME	DIGITAL AUDIO	TX 6
CALCULATION	INTERFACE

T+ T- F+

TRAVERSEMOTOR M

SPINDLEMOTOR M

F-	IC702
	MN662790RSC
	SERVO PROCESSOR
	DIGITAL SIGNAL/
	PROCESSOR/
	DIGITAL FILTER/
	D/A CONVERTER
		BDO
		/RFDET
		RFENV
		FE
		TE
		OFT
		VREF
		TBAL
IC703		FBAL
AN8739SBE2
FOCUS COIL/
TRACKING COIL/
TRAVERSE MOTOR/
SPINDLE MOTOR		LDON
DRIVE
	/RST	1

ARF	DSL	PHASE	FREQUENCY	CIRC		DMUTE	16	-B
44		COMPARATOR	COMPARATOR
				DECODER
		VCO				X2	59
SYNCHRONIZING			EFM	INTERPOLATION				X701
PROTECTION				/SOFT MUTING
			DATA
				/DIGITAL	S/P
			DEMODULATOR
				ATTENUATION	CONVERTER	X1	58

39

BDO

SERVO

SYNCHRONIZING

16K

38

/RF DET

INPUT

INTERPOLATION

SRAM

PORT

PROTECTION

34

RF ENV

A/D CONVERTER

32

FE

RAM

PEAK

DETECTOR/

33

TE

ADDRESS

AUTO CUE

GENERATOR

36

OFT

37

TRCRS

CLV

SUB-CODE

DEMODULATOR

35

VDET

SERVO

29

VREF

CRCC

31

TBAL

CHECK

30

FBAL

SERVO

CPU

CRCC

41

PLLF2

CHECK

43

WVEL

D/A

SERVO OUTPUT

42

DSLF2

CONVERTER

PORT

40

LDON

SENSE

FLOCK

TLOCK

BLKCK

SQCK

SUBQ

TRD

FOD

TVD

ECS

KICK

TRV

ECM

PC

/RST

27

28

22

25

26

21

24

23

10

11

12

18

13

14

15

	TIMING
DIGITAL DE-EMPHASIS	GENERATOR SMCK 19
	/PITCH
DIGITAL FILTER	CONTROL RSEL 76	+B
	VREF 29
		+B

	LOGIC		PWM LOGIC	+ OUTL	73
				-	CD SIGNAL
	MASH		PWM LOGIC	+ OUTR	75
				-	R CH
					(CD SIGNAL)
				SUBC	55
				SBCK	56
MIRCOMPUTER				DVSS1	5
INTERFACE				CSEL	20
				PSEL	78
STAT	MDATA	MCLK	MLD	NSEL	79
				/CLDCK	62
17	8	7	9

18	D4+ RESET
	SIGNAL		+B
	GEN. VREF 24	+B

17	D4-	FOCUS		IN3	26
		COIL
16		DRIVE
	D3+	TRACKING
15	D3-			IN4	25
		COIL
		DRIVE
12	D1+	TRAVERSE		IN1	6
11
	D1-	MOTOR
		DRIVE
14	D2+	SPINDLE		IN2	3
13	D2-	MOTOR		PC2	4
		DRIVE
9	PGND1		PVCC1		8	+B
20	PGND2		PVCC2		21
			VCC		23

S701(RESET)

/RST

BLKCK

ST/DO

SUBQ

STATUS

MDATA

MCLK

MLD

RESET

E

FM ANT

AM ANT

Z101

Z120

CF201

CF202

(FM)

AM

AM

+B

Q1

Q2

Q101,Q102

ANT

OSC

1

MIXER

7

FM

COIL

COIL

IF AMP

RF AMP

Q3

Q4

IC101

5

OSC

BUFFER

LA1833NMNTLM

FM/AM IF AMP,

DET/AM OSC,

3

4

6

8

MIX/FM MPX

+B

(FM)

RCH

24

23

22

21

20

19

18

17

16

15

14

13

ALC

AM

AM

AM

DECODER

BUFFER

OSC

MIX

RF AMP

PILOT

PHASE

CANCEL

AGC

DET

LEVEL

S-CURVE

STEREO

SWITCH

DET

AM

AM

FM

AM/FM

IF

DET

IF

FM

IF

COMP

DET

BUFFER

VCO

TUNING

DRIVE

FF

FF

FF

PILOT

DET

REG

REG

SD

ST

1

2

3

4

5

6

7

8

9

10

11

12

+B

Z102

X102

AM

IFT

ST/DO

SD

16

PHASE DETECTOR

REFERENCE

1

X103

CHARGE PUMP

DIVIDER

20

17

UNLOCK

SWALLOW COUNTER

1

14

DETECTOR

1/6,1/17,4 BITS

2

18

12

12 BITS PROGRAMMABLE

13

11

DIVIDER

DO

5

ST/DO

UNIVERSAL

SHIFT REGISTER LATCH

C2B

CE

2

CE

COUNTER

I/F

DI

3

DI

+B

15

POWER ON

CL

4

CL

RESET

19

10

7

12

6

9

8

Q106

+B

POWER

SUPPLY

SWITCH

+B

IC102

LC72131MDTRM

(FM:ON)

E

PLL FREQUENCY SYNTHESIZER

			Q902
STATUS			INTERFACE
					Q901
SUBQ					INTEFACE
ST/DO
					Q903
BLKCK					INTERFACE
/CDRST
RESTSW
SD
	A
				21	29	18	30
CE/MLD		26	MLD/PLLCE	SD	RESTSW	CDRST	BLKCK
DI/MDATA		27	MDATA/PLLDA
CL/MCLK		28	MCLK/PLLCLK
VT	-B

20

SQCLK

22

ST/DO/SUBQ

19

STATUS

IC1

TA7291P

MOTOR DRIVE

				8	Vs	-B
IN1	5	REG		2	OUT1
IN2	6			10	OUT2
						M
	4	7	1			RM1
	Vref	Vcc	GND
		+B
			Q1
			POWER	+B
			SUPPLY
			CONTROL

				SW2
				SW1
				SW3
			+B
							Q350
							PLUNGER
							SUPPLY
				SW4			Q351
							DRIVER
			SW5				SWITCH
							SUPPLY
23	24	25	17	16	44	43	45
CHG CW	CHG CCW	CHG HALF	CHG AD2	CHG AD1	CHG SW1	CHG SW2	CHG PLGR

M38199MF227 IC600 SYSTEM CONTROL/FL DRIVE