AB

C

1 2 3 4 5

KS

-F525

2-1

Blo

ck Diag

ram

HEAD

IC401PB EQ

CXA2559QIC941

POWER AMP.HA13158A

IC911E.VOLUMETEA6320T-X

IC701SYSTEM CONTROL MICON

UPD178018AGC594

TU1AM/FM TUNER PACK

QAU0221-001

SUBMOTOR

IC402DC MOTOR DRIVER

LB1641

LCD1QLD0158-002

IC651LCD DRIVER

LC75823W

KEYS601 – S619

MAINMOTOR

SWITCHTAPE END.STANDBY

SEEK/STOPSD/ST

SMETER

TUNER L/R

OUT LROUT RROUT LFOUT RF

L/R F L/R R LRO

RRO

CP

501

CP961 J931

KEY 0 – 2

CJ7

01

S3 – S52COM1 – COM3

CP

701

TAPE L/R

F/RMODESTANDBYFF/REWMOTORSUBMO TAPE INDOLBYMSREEL

SUBMO+SUBMO-

LCHRCH

METAL

DOLBY

CECLOCKDATA

F/RMS OUTLCHRCH

FF/REW

MOTORTAPE INMODE

STANDBY

REELPHOTO

CJ4

01

CJ403 CJ402

J1

AMFM

TO SPEAKERCONNECTOR TO REAR LINE OUT

Tuner.Power AMP.Changer/System Controller LCD DRIVER/KEY SWITCH CIRCUT

MECHANISM CONTROL

< M E M O >

KS-F525

2-2

B C D E G

1

2

3

4

5

2-3

KS-F525

Receiver & System control sectionStandard schematic diagrams

Tuner signal

Front signal

Rear signal

Tape PB / Main signal

Parts are safety assurance parts.When replacing those parts makesure to use the specified one.

HA B C D E F G

1

2

3

4

5

KS-F525KS-F525

2-4

Tape PB / Main signal

Mecha control circuit section

C410

CJ401

C409

C411

R416

C422

Q402

Q403

IC402

C425

C424

CJ402

R401

R418

IC401

CJ403

C41

6

C41

3C

412

D40

1

VR

401

R40

8

C41

4

R40

9

C41

9

C41

5

C41

8

R41

0

R41

4

C40

6

C42

1R

415

R40

6R

407

R40

5

C40

4

R40

4

C40

3

C40

2

R41

1

VR

402

R41

3

C40

7

C41

7

R42

2

R42

3

D40

2

R40

3

R42

5

C42

3R42

4

R41

2

R41

7

R40

2

C40

1

C40

5C

408

0.015

QGB1214K1-18S

22/16

0.015

910k

0.1

DTC114EKA-X

2SB1322/RS/-T

LB1641

0.01

0.1

390

15k

CXA2559Q

QGF1219F1-10

0.1

0.1

0.1

MA

3051

/M/-

X

33K

12K

22/1

6

24K

0.47

/50

0.01

220P

24K

3.9K

100P

0.01

22K

180

180

100K

100P10

0K

100P

100P

12K

33K

18K

100P

0.1

3.3K

47K

DS

K10

C-T

1

100K

33

10/1

6

3.3K

100

10K

100K

100P 10

0P10

0P

A B C D E F G

1

2

3

4

5

2-5

KS-F525

R658

LCD1

C652

C653

R652

D655

D654

D653

R608

D652

S608 S610S609

S619

S604

S615

R603

S607

S616 S617

S602S603

S618

S611

S606

R604

R613 R614

R602

R615

R609

CP701

R631

JS601

D601

S613 S614

S605

R607

IC651

S620

S612

R610 R612

R601

R651

R616

R605

R617

C651

R611

R606

IC652

S601

D65

7

R63

5

R65

3

D62

1

D62

3

D62

0

R63

8

D60

7

D61

0

D60

8

D60

3

R63

4

R63

9

D62

6

D60

5

D61

5

D61

9

D62

2

D62

5

D60

6

PL6

03

D60

2

D62

7

D61

1

D61

7D

618

PL6

01

D61

4

R65

4

D61

6

D60

4

D60

9

R63

6

R64

0

D61

2

R64

1

R63

3

R66

3

R65

7

R63

7

C67

1

R65

6

R65

5

C65

4

47

4.7/6.3

680p

47k

MA152WK-X

MA152WK-X

MA152WK-X

560

MA152WK-X

SELECT SCANLOUD

FM

2/8

6/12

680

5/11

SCM AM

DISP1/7

TAPE

RPT

4/10

910

680 560

560

680

680

VMC0335-001

820

QSW0793-001

EJECT

3/9

680

LC75823W

MO

910 1.5K

680

1.5k

910

1.2K

1.2K

0.01

1.2K

1.5K

RPM6938-SV4

POWER/ATT

MA

3062

680

180K

270

620

270

QLL

0033

-003

QLL

0033

-003

10K

270

470

820

470

100

10K

270

0.01

10K

10K

4.7/

6.3

OSCCE

INH

DATA

CLOCK

S32

S31S30

S29

S28S27

S26

S25

S24

S23

S22

S21S20S19

S18S17

COM3

COM2

COM1S52

S51

S50

S49

KE

Y1

R5V

CE

CLO

CK

DA

TA

KE

Y0RE

MO

CO

N

LAM

P10

V

S16

S15

KE

Y2

EN

C1

S14

S13

S12

S11

S10

S9

S8

S7

S6

S5

S4

S48

S47

S46

S45

S44

S43

S42

S41

S40

S39

S38

S37

S36

S35

S34

S33

S3

S4

S5

S6

S7

S8

S9

S10

S11

S12

S3

S13

S14

S15

S16

S17

S18

S19

S20

S21

S22

S23

S24

S25

S26

S27

S28

S29

S30

S31

S32

S33

S34

S35

S36

S37

S38

S39

S40

S41

S42

S43

S44

S45

S46

S47

S48

S49

S50

S51

S52

CO

M1

CO

M2

CO

M3

LAM

P10

V

EN

C2

PC

NT

5V

DE

TA

CH

LCD & key control

HA B C D E F G

1

2

3

4

5

KS-F525KS-F525

2-6

C1

C7

C9

C17

C18

C20

C21C24

C25

C11

1

C11

2

C11

3

C11

4

C11

5

C11

6C11

7

C11

8

C119

C143

C144

C151

C152

C15

3

C21

1

C21

2

C21

3

C21

4C

215

C21

6

C21

7

C21

8

C21

9

C243

C244

C251

C252

C253

C24

5

C246

C247

C701

C70

2

C70

3C704

C75

1

C76

1

C762

C76

3

C764

C76

5

C766

C76

7

C91

1

C912

C913

C93

3

C941

C94

2

C94

3

C944

C945

C961

C96

2

C96

3

C964

C965

C96

6

C96

9

C970

C977

R983

D1

D2

D3

D5

D6

D24

1D

242

D932

,D951

D961

D963

Q750

D978

D979

IC751

IC761

IC911

IC961

J1

L1

L701

Q1

Q2

Q3

Q4

Q5

Q6

Q7

Q10

Q11

Q12

Q132

Q151

Q232

Q251

Q241

Q951 Q963

Q964

Q97

9

R3

R4R5 R7

R8

R9

R10

R12

R14R24

R25

R26

R27

R29

R30

R112

R113

R11

5

R131

R13

3R

134

R141

R142

R143

R144

R151

R15

2

R153

R212

R21

3

R21

5

R231

R23

3

R234

R241

R242

R243

R244

R251

R25

2

R253

R245

R246

R247

R70

1

R70

2

R70

3

R70

4

R70

5

R706

R708

R709

R71

0

R711

R71

2

R713

R792

R71

5

R71

6

R71

7

R71

8

R71

9R72

0

R721

R722

R723

R72

4

R72

5

R72

6

R727

R73

2

R733R734

R736

R737

R73

8

R739

R74

0

R746

R747

R748

R75

1

R75

2R753

R754

R755

R75

6

R75

7

R758

R75

9

R76

1

R79

0

R791

R91

1

R91

2

R91

3

R941

R961

R96

2

R963

R966

R967

R974R97

5

X701

X761

Q96

5

R97

8 R97

7

C97

9

C978

R11

6

R982

C967

R70

7

Q952

Q231Q131

D931

R232

R132

R23

5

R13

5

C93

2

R23

6

R136

B701

R741

R750

Q978

D977

B775

C90

1

R117

R21

6R

217

C980

D24

3

C70

7

C70

8

R749

C709

Q13

R77

1

B773

R773

R32

R98

1

D982

D981

R97

9R

980

D738

D736

D73

1

D734

D732D733

D735

D74

0

D741

C28

C29

C30

C2L2

R34

R970

R96

9

B779

Q891

B742

B703

B741

B702

B708

B772

B774

D701

B749

B712B711

B743

B751

B717

B716

B770

B723

B727

B722

B706

B771

B707

B740

B744

B746

B745

C70

5

L711

B728

C968

C31

Q967

B766

B714

B713

R308

B769

B721

B719

B754

Q30

3

B776

B755

B777

D742

B758

C713

C25

4

C15

4

D965C

710

R30

1

R303R305

R30

2R

304

R30

7

R30

6

Q30

1

Q30

2C

304

C303

C30

2

C301

C305

B757

B704B756

C768

C711

B747

Q962

Q966B750

D966

C71

2

B778

D891 B725

R89

2

C89

1

R891B726

C90

2

C6

1

80

20

21

40

60

61

1

1

5

10

1

2

3 4

5

6 7

8

9

10

11

1213

14 15

TPLCH

1

18

1

[REMOCON] 71

14

E

B

TPRCHT11

C40

1

C40

2

C40

3C

404

C40

5C

406

C40

7

C40

8

C40

9

C410

C411

C412

C413 C414 C416

C41

7

C418C419

C421C422

C42

3

C42

4C

425

CJ401

B405

B403

D40

1

D40

2IC402

Q401

Q40

2

Q40

3

R40

1

R40

2

R40

3

R40

4

R40

5

R40

6

R40

7

R40

8

R41

0

R41

1

R412

R413

R414

R415

R416

R41

7

R418

R42

0

B413

R422R423

R42

4

R425

R42

6

VR401

VR402

IC401

CJ403

B412

B407

B401

B408

B410

B406B409

B404

C41

5

B402

B411

2

1

2

1

11

21

31

1

FSMW1093A

1

1

T11

C653

C671

D601D602

D603

D604

D605

D606

D607

D608

D609

D610

D611

D612

D614

D615 D616

D617D618

D619

D620

D621

D622

D623

D625

D626

D627

IC652

LCD1

R603 R604 R605 R606

R607R608R609

R610

R611

R612

R613

R614

R615

R616R617

R631

R633

R634

R637

R639

R651

R652

R658

R663

S601

S602

S603 S604 S605 S606S607

S608

S609

S610

S611 S612

S613

S614

S615 S616S617

S618

S619

S620

S1A

C651

C65

2

C65

4

CP701

D652

D653

D654D655

D657

IC652

PL601

PL603

R601

R602

R635R636

R638

R653R654

R655R656

R657

R640

R64

1

17

1 15

3233

48

49

64 1

16

GEB10011A

T1A

Printed circuit boards

Main boardFront board (Forward side)

Front board (Reverse side)

Mecha control board