Panasonic SAAK-66 Service manual

Service Manual

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ORDER NO. MD0102038C1

A6

CD Stereo System

l

SA-AK66

Colour

(S)... Silver Type

Area

(P)... U.S.A.

(PC)... Canada

TAPE SECTION :

SG-2W MECHANISM SERIES

CD SECTION :

RAE0152Z-3 TRAVERSE DECK SERIES

Specifications

· AMPLIFIER SECTION

Power output

THD 10% Total harmonic distortion

(Front 1 kHz) 70 W per channel (6Ω)

(Center 1 kHz) 70 W per channel (8Ω)

(Surround 1 kHz) 35 W per channel (8Ω)

Total output in stereo mode 140 W

Total output in Dolby Pro Logic mode 280 W

FTC Power output

THD 10% Total harmonic distortion

(Front 70-16 kHz) 60 W per channel (6Ω)

(Center 70-16 kHz) 70 W per channel (8Ω)

(Surround 70-16 kHz) 35 W per channel (8Ω)

Total output in stereo mode 120 W

Total output in Dolby Pro Logic mode 260 W

Input sensitivity

AUX 250 mV

Input Impedance

AUX 13 kΩ

· FM TUNER SECTION

Frequency range 87.9 - 107.9 MHz (200 kHz steps)

87.5 - 108.0 MHz (100 kHz steps)

Sensitivity 2.5μV (IHF)

S/N 26 dB 2.2μV

Antenna terminal(s) 75Ω (unbalanced)

· AM TUNER SECTION

Frequency range 520 - 1710 kHz (10 kHz steps)

Sensitivity

S/N 20 dB (at 1000 kHz) 560μV/m

· CASSETTE DECK SECTION

Track system 4 track, 2 channel

Heads

Record/playback Solid permalloy head

Erasure Double gap ferrite head

Motor DC servo motor

Recording system AC bias 100 kHz

Erasing system AC erase 100 kHz

http://servis-manual.com/

19 Troubleshooting Guide

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SCHEMATIC DIAGRAM -1

: +B SIGNAL LINE : +B SIGNAL LINE

CD SERVO CIRCUIT

: CD SIGNAL LINE

OPTICAL PICKUP CIRCUIT

LASER DIODE

6 8

11

C

12 10

5 4

9

2 3

C

NBOUT

1

8

GND

2

VCC

NAOUT

3

BIN

VREF

4

AIN

C

7

6

5

C

10 11 12 13 14 15 16

1 2 3 4 5 6 7 8 9

CN701

1 2 3 4 5 6 7 8 9 10

11 12 13 14 15 16

VCC PDF PDE LD LD GND GND NB GND NA VREF LPD GND

TT+ FF+

Q701

R750

4.7

3.2V

0.9V

((2V))

C713

C750

0.1

C751

0.1

R701

4.7 C701

6.3V33

2.7V ((2.3V))

Q701

2SA1037AKSTX

LASER POWER DRIVE

29

30

C703

6.3V100

C704

0.1

0.1 2700P

C707

C714

6.3V100

C702

C706

0.027

0.1

IC701

AN8885SBE1

SERVO AMP

C712

0.1

C711

0.1

R708

22K

1.6V

0V((0.2V))

3.2V

2.7V((2.3V))

1

1.6V

3

2

4

876

5

LD

LPD

PDB

PDF

PDA

VCC

PDE

IC701

TEN

TEOUT

FEOUT

TBAL

FEN

VREF

FBAL

24

23 2228

25

26

27

1.6V

C747 180P

R744 120K

C749

2200P

R707

39K

21

1.6V

C710 120P

R702

R705

10K

150K

C742

0.027

R704

R706

1K

0.9V((1.4V)) 9

RF

RFIN

NC

20

1K

0V

0.7V

0V((3.1V))

1.6V

1.9V 14

1312

10

11

CEA

BDO

GND

LDON

CSBRT

NC

ENV

OFTR

PDOWN

/RFDET

17

15

19

16

18

0V

1.6V

0V((3.2V))

33

C735

0.1

C734

10V220

14 13 12 11 10

36

SP MOTOR

38

3.3V((3V))

3.3V((3.5V))

D3-

D4-

D3+

D2+

D2-

D1+

3.3V

3.3V((3.5V))

3.7V((3.5V))

C737

0.1 M

M702

C736

0.1

M

M701

TRV MOTOR

3.3V

1915 16 17 18

D4+

NC

D1-

3.7V((4.1V))

IC703

AN8739SBE2

FOCUS COIL/

TRACKING COIL/

TRAVERSE MOTOR/

SPINDLE MOTOR DRIVE

7.3V

22 28272625

23 24

29

2120

GND

VCC

NC

PVCC2

PGND2

IC703

IN1

GND

PVCC1

NC

7 6 5 4 3 2 1

30

9 8

PGND1

35

1.6V

R735

100

VREF

NC

1.6V

7.3V

IN4

PC2NCIN2

3.2V((0V))

1.6V

NC

IN3

RSTIN

1.6V

R724

18K

1.6V

R725

R715

/RST

390

C715 2700P

1K

R727

3.9K

R736

100

C752

1000P

R749

4.7K

C738

0.01

R729

3.9K

28

C739

1500P

R728

3.9K

37

R723

6.8K

R731

6.8K

SCHEMATIC DIAGRAM - 2

CD SERVO CIRCUIT

C723

10V220

C724

0.1

X701

RSXZ16M9M01T

C722

10P

R711

C716 820P

82K

C717

0.1

R714

0

C744

5600P

R709

47K

C721

10P

C718

0.22

R712

220

R741

R742 220K

47K

: +B SIGNAL LINE : +B SIGNAL LINE

R721

100

C731

6.3V220 C730

C754

470P

61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79

FCLK

CLVS

60

VDD

3.2V

59

X2

OUT

1.5V

58

IN

X1

1.5V

57

VSS

56

SBCK

55

SUBC

54

VCOF2

53

PCK

52

EFM

51

AVSS2

50

AVDD2

3.2V

49

VCOF

48

PLLF

0.5V DSLF

47

1.6V

46

DRF

1.6V

45

IREF

1V

44

ARF

1.6V

43

WVEL DSLF2

42

1.5V PLLF2

41

40

FLAG

BYTCK

IPFLAG

/CLDCK

DIGITAL SIGNAL PROCESSOR/

VDET

OFT

TRCRS

/RFDET

BDO

LDON

39 38 37 36 35 34 33 32 31 30 29 28 27 26 25 24 23 22 21

0V

0V((3.2V))

0.1

3.2V

2.9V

3.2V

CRC

RESY

/TEST

IOSEL

AVDD1

DEMPH

IC702

MN662790RSC

SERVO PROCESSOR

DIGITAL FILTER/

D/A CONVERTER

VREF

FBAL

TBAL

FETERFENV

1.6V

FOD

OUTL

: CD SIGNAL LINE

20

18

19

23

R717

1K

R718

1K

C733

C732

0.1

6.3V220

3.2V

2.9V

1.5V

RSEL

OUTR

AVSS1

ECS

TRD

KICK

1.6V

3.2V

80

SSEL

PSEL

MSEL

1.6V

PC

3.2V((0V))

SRDATA

DVDD1 DVSS1

MDATA

SENSE /FLOCK /TLOCK

BLKCK

DMUTE

TVD

1.6V

BCLK LRCK

MCLK

SQCK

SUBQ

STAT /RST

SMCK

CSEL

TRV

1

2 3 4

3.2V

5

TX

6

1.6V

7

3.2V

8

0.5V

MLD

9

3.2V

10 11 12 13

0V

14

0V((0.2V))

15

3.2V((3.1V))

16 17

0V((3.1V))

18

3.1V

19 20

IOVDD

ECM

1.6V

C725

1000P

C726

1000P

C745

1000P

C727 50V1

C728 50V1

11 10

9

22

21

CN702

Lch OUT

19

A.GND

18

Rch OUT

17

C753 470P

C743

0.1

8

6

7

4

R753

10

3

+3.3V D.GND LD SW

+7.5V

P.GND

MCLK

MDATA

MLD SPEED BLKCK

SQCK

SUBQ

STAT

/RST

REST SW

17 16 15

14

TX

13

TO

12

PANEL

11

CIRCUIT

10

(CP606) ON

9

SCHEMATIC

8

DIAGRAM-8

7 6 5 4 3 2 1

TJ702

S701

RESET SW

16

1

15

SCHEMATIC DIAGRAM - 3

TUNER CIRCUIT

Z120 (RAL0029)

FM EXT

ANT 75

GND

AM LOOP

ANT

AM EXT

ANT

JK101

1

2

4 3

L102

RLQB1R0KTD-D

R110

C110

0.01

R152

1

2

3

4 5

2

1

RLA2Z007-T

1K

R114

5.6K

0

5.6P

100K

2.7K

Z101

C107

0.047

3

9

AM ANT COIL

LA1833NMNTLM

DET/AM OSC MIX/

IC102

LC72131MDTRM

PLL FREQUENCY SYNTHESIZER

2SK544

RF AMP

G

100K

AM OSC COIL

8

7

R112 100K

IC101

FM/AM IF AMP

FM MPX

D101 UDZSTE175R1B

C112

0.01

C133

27P

C134

27P

R138

3.3K

R130

10K

D

S

2.2P

C108

0.001

8P

220

4.7P

C136

1000P

4 5 6

16V22

C132

1000P

6.3V100

<2.59V>

20

XOUT

X103

RSXC7M20S05T

XIN

1

<2.6V>

: +B SIGNAL LINE

: FM/AM SIGNAL LINE

2SC2786M

FM MIXER

2.2P

1.2u

3.3P

820K

100K

180P

390

2SC1675L1L2

BUFFER AMP

560K

LOCAL OSC

2.2P

C114

50V3.3

3.3K

R118

C109

1000P

C127

16V22

10

C126

R111

2

2.6V

2.62V

<0V>

VSS

CE

<0.55V>

R137

1K

(0V)

(0.55V)

((0V))

1819

((0.77V))

R113

10K C111

50V4.7

<5.64V>

(1.84V)

0V

AOUT

DI

<0.02V>

(0.02V)

0.55V

R136

1K

R115

R116

((12.33V))

12.26V

17

AIN

CL

((0.23V))

0.02V

R135

390

560

1K

<0.81V>

(0.9V)

<0.02V>

1K

((0V))

0V

16

IC102

534

(0.02V)

((4.75V))

0.02V

<0.81V>

PD

DO

<5.15V>

R134

C125

C130

(2.6V)

(2.61V)

((2.6V))

((2.61V))

R119

470

(0.9V)

(5.16V)

10P

4.7K

((0V))

15

6

((5.03V))

0.001

680K

<4.68V>

24

OSC OUT

FM IF IN

1

<2.08V>

2

1

Z102

RLI2Z021M-T

0V

<2.58V>

<1.15V>

(5.16V)

((5.16V))

5.17V

14

VDD

FMIN

SWA

AM

7

5.16V

<5.01V>

(0.18V)

((5.19V))

5.19V

: FM SIGNAL LINE : FM OSC SIGNAL LINE

RLFFETWND01M

(5.01V)

((4.85V))

(2.07V)

((2.09V))

R151

(0V)

23

2

82

((0V))

13

0.47u

390

10P

<6.11V>

4.85V

OSC

AM MIX OUT

2.09V

<6.1V>

<0V>

0V

AMIN

SWB

8

<4.66V>

(6.42V)

C113

(2.49V)

(4.98V)

((6.27V))

6.27V

22

((6.27V))

6.28V

1000P

((2.59V))

12

9

((4.83V))

7

C102

16V10

6

8

<2.42V>

(2.06V)

((2.46V))

AFC

REG

<2.08V>

(2.07V)

((2.07V))

3

5 6

R129

<0V>

(0V)

((0V))

2.59V

MONO

STRQ

4.83V

<0.02V>

(0.02V)

((4.43V))

R133

R117

<2.42V>

2.46V

21

AM RF IN

2.08V

<2.06V>

C106

0.01

27K

<0V>

0V

11

IFINFM

10

4.43V

<0.05V>

1K

47K

(2.06V)

C124

(0V)

(12.3V)

1

50V4.7

C115

((2.46V))

2.46V

20

534

((2.08V))

2.07V

100P

((0V))

0V

((12.31V))

12.25V

CF201

<0.16V>

(0.75V)

AGC

GND

<0V>

(0V)

4

2

C101

0.01

C119

R120 47K

((0.25V))

0.25V

<2.02V>

AM OUT

IC101

SD

6

((0V))

0V

<5.15V>

0.01

C148

R132

10K

C116

(1.25V)

(5.14V)

3

680P

0.033

((2.02V))

1.86V

1819

7

((4.22V))

5.12V

R126

1K

C103

0.01 C104

1000P

R105

470

R103

270

R121

22K

R143

22K

C139

50V4.7

R102

4.7K

<2.39V>

(1.56V)

DET OUT

ST

<5.15V>

(5.16V)

1000P

C147

((2.36V))

2.36V

17

8

((5V))

5.16V

<2.06V>

PILOT IN

FM DET

<3.97V>

R124

33

: AM SIGNAL LINE : AM OSC SIGNAL LINE

R104

R107

330

R106

470K

0V (0V) <11.5V>

Q101

0V (0V)

0V

<0.7V>

(0V) <0V>

C120

16V10 C138

0.01

150P

C137

68K

R123

C131

(2.06V)

((2.07V))

2.07V

<2.07V>

(2.07V)

((2.08V))

2.08V

<2V>

(2.01V)

((2.02V))

16

15

14

MPX IN

PILOT OUT

VCC

STRQ

9

10 11

<6.1V>

(6.43V)

((6.17V))

6.27V

(5.15V)

((4.13V))

4.12V

<0.02V>

(0.02V)

((3.68V))

R127

470

X102

RLFDFT22DD

R125

470

Q106

KRA102MTA

POWER SUPPLY CONTROL

(FM : ON)

1K

CF202

RLFFETWND01M

1

3

2

Q101

2SC2058SPTA

FM IF AMP

C117

R146

0.01

100K

3300P

C142

R142

0.01

C118

50V1

6.8K

C141

R141

50V1

6.8K

R145 100K

<1.69V>

(1.76V)

((1.78V))

1.77V

2.02V

<1.7V>

(1.75V)

((1.76V))

1.76V

13

C143

LCH

RCH

6800P

MONO

FM/AM

12

3.68V

<3.66V>

(4.55V)

((3.76V))

3.72V

<5.01V>

(1.32V)

((5.19V))

5.19V

C122

50V1

C121

50V1

C123

50V0.47

R122

2.7K

R131

68

C149

C129

0.1

6.3V100

R128

82

0V (0V) <13.5V>

C144

13.6V (13.6V) <0V>

6800P

13.6V (13.6V) <13.6V>

TUNGND

15V

DO/ST

+7.5V

MUTEA

RCH

CE

LCH

PLLDA

DO/ST

PLLCK

SD

1A

TO MAIN CIRCUIT (1B) ON SCHEMATIC DIAGRAM-4

2A

TO MAIN CIRCUIT (2B) ON SCHEMATIC DIAGRAM-4

SD

PLLDA

PLLCK

CE

DO/ST