Akai 21CT21FS Schematic

A

1

S-204

A3

U701

AT138A

2k

2k7

5k

K

88

77

66

55

44

33

V

22

11

K

1

560k

D48

V

1N41

W90

D46

1

48

1

1

XS901

4

5

3

7

9

6

8

1

A

FG

14"

neck

V

1N41

R462

3k9

J

BCLin

D462

R46

10k

J

48

R407

27

1

0

XS403

XP403

4

4

3

3

2

2

1

1

XS402

1

2

3

4

+200V

5

R464

1k0

C462

47µ50V

V

D46

C46

470n63

R463

3k3

0

1

9A3

V

+8

V

H

VL1

cc+
V

2

RGP10

+15

C456

J

R94

B

2k

V91

BF422

00

48

VD40

V

5,6

1

R917

3

1

D

V

EHTO

C458

10µ160V

1

VD91

22

0

2

R914

C9

I

N401

STV9302A

)
+

+

cc­V

FLYB

5

4

C406

100µ25

R404

-15

V

R479

3,3

7

6

5

3

4

1

"

1

0

2

R458

+110

3R9

C943

1

1

n 2k

V

2

R928

1

k5

V91

3

1

BF42

R916

33

0

22

V

D94

11

9A3

33

0

I

V

OUT

6

V

C404

1,0

220n63

R482

68

0

R48

0

3,3

TF-0070----0U

V

5

1

W91

9

1

R918

k5

7

V

T45

100n100

(
np

I

V

1N41

R48

1

234

V

Heat_PK

D482

1k0

2

48

1

8

V

1

GND_Heat

G(R

R(G

3

1

R403

1

k8

W40

R406

1,5

R465

22-2

R46

0

1k0

C46

0

XS902

XS904

1

0

9

11

)

6

)

8

4

5

7

1

1

2

FG

20_21" neck

V

XP16

1

1

2

C475

10n

C472 C474

10n

2

C453

47µ35

1

C452

1n500

C94

1

10µ250V

0

932

V

933

1

R936

33

0

-15

V

BA

+

-

R485

10k

+15

C47

V

T45

V

R92

47

2SC233

R922

10k

V

D92

1N41

1

0

V

1

V921

V

1

3

TD-

5,4

D932

BAV2

48

H

1

H

100µ25

100µ25

L45

000

0

R47

0,47

R472

0,47

0

4

+200V

1

R925

1

2k

R923

3

00

V

drA

V

drB

R468

2,7

4µ7 160V

0

V

V

V451

TT214

0

V

922

R924

22

C92

33

V

D436

RGP10

C466

C47

11

C474

100µ25

7n5 for 14

C477

10µ250V

R927

22

BF422

V

BF42

1

0

33n100

R467

10k

J

0

R466

1k0

V

RGP10

100µ25

V

1

RGP10

V

C455

8n2 1,6kV

R473

1,0

V

0

923

1

R926

33

0

1

220p500V

C403

V

C467

µ39 200V

L452

D47

0

D

V

D47

1

D

"

D922

BAV2

1

R938

1

k5

R9

11

47

V911

2SC233

R912

10k

)

­(

np
I

C405

R405

1

k8

36
0

LF-

1n0 1,6k

n47 2kV for 14

V

D472

RGP10

BAV2

R915

1

0

R913

3

VD911

1N41

352

Out2

V173

R822

75

47

R173

68k

R823

75

R848

G

AN7523N

.

ume

c

l

.

np
I

n

o

GND

1µ50

R818

75

1

00

C172

10µ16

C158

C813

1

75

75

R163

10k

V

V

V

9A3

R452

1

8

R819

R815

D483

00

V

R816

R816

R82

R82

00

2SC2383

10k

1k0

R818

1k0

1

9

1

0

V450

V

1µ50

+24

C163

V

SCART

XS801

1

2

3

4

5

6

7

8

9

1

0

11

1

2

1

3

1

4

1

5

1

6

1

7

1

8

1

9

2

0

2

1

V

XS

161

1

2

R454

27

0

C45

3n9 500V

R453

1k0

1

Standby

7

6

5

R174

270k

R

1

75

+5

V

33k

5n6 100

R369

4k7

C812

47

0

10k

R824

75

68

R81511

+8

V

H_out

A2

1

5

234

XS903

R937

R935

22

1

2k

R933

3

V

BF422

BF42

R934

22

C93

1

00

33

0

R93

1

47

V931

2SC233

0

R932

10k

V

D93

1

1N41

48

G

F

N13

1

1

cc

V

V

V

BO

GO

RO

+8

C16

470µ25

V

D734

1N41

XS301

5

4

3

2

1

R353

180

C352

47µ16

V

1

VD171

R17

48

BCLin

1

1

33k

0

R455

3k9

XT 6.5M

V

V

1

C162

10n

V

N4148
1

2PA

R734

1k0

µ47 50V

R355

1

00

Z35

1

101

C123

R157

8k2

2

V17

5G

Out

R158

R372

10µ16

47µ16

R355

1k0

1

3k3

75

C367

Y

3

47µ16

R172

47k

V

C352

V

1

GND_Out

R162

22k

C17

4

1

V

2PC1815G

R352

V

2PC1815G

V

+13

V

R732

1

R16

1

47k

2k2

C164

10µ16

V

+8

Mute

C745

22µ16

R382

1

1

00

R38

1

1

00

+8

R434

10k

R37

1

47

0

Z354

XT 5.5M

L35

1

3µ9

R354

56

V351

2PC1815G

R368

47

V

3

+3

C56

1

47µ16

V

R56

1

27

+5

V

C548

100µ10

V

3

0

+8

V

C532

470µ16

V

F

64

63

62

6

1

6

0

59

58

57

56

55

54

53

52

5

1

5

0

49

48

47

46

45

44

43

42

4

1

4

0

39

38

37

36

35

34

33

V

V

2PC1815G

R539

R539

VR50

2k

R54

5k6

C752

0

µ47 50V

C86

1

n

R487

5

1

k

51k

0

10n

R38

0

10k

C372

0

µ47 50V

3,6

1

C364

R322

39

0

27k

1

1

E

C756

10n

X76

1

C76

33

L752

10µ

V

D38

7C

C374

V

10µ16

C362

10n

C48

1

n

R565

0,27

R548

10k

R56

1

k2

V50

VD1561

6C2

E

1

2M

1

C75

1

1

1

0

µ47 50V

V

100n63

1

0

4

10n

C762

33

10µ16

C38

C373

W

862

C326

H_out

V

542

R55

C535

R1554

150

V1553

2PC1815G

C755

2µ2 50V

L75

10µ

V

V

D382

7C

1

1

56

0

Be

R366

47

C36

V

2SB1443

1

10k

k

L753

1

R382

1

R38

0

1

100µ16

R484

27k

R45

2k2

STANDBY

10µ

00

11

C464

4µ7 50V

Chr_Re

C365

100n63

R365

47

V

R483

1

47k

R1556

V

D383

7C

1

20_21" neck

2

1

00

Ge

V

0

L36

1

10µ

R35

2k2

100k

EHTO

7805

1

R546

27

C524

2200µ25

+110

V

R1555

22k

Vol

+3

0_21"

1

N505

2

+5

V

3

R383

1

00

neck

R385

33k

R384

22k

V

D564

3C3

3

0

V

N503

7808

1

2

R53

56

+5

V

C743

100µ16

4k7

R732

1

k5

C333

V

R33

V

2µ2 50V

Z301

3

3n3 100

R32

2k7

C324

4n7

T501

C515

1n0 400VAC

1

10n

C32

V

C332

10n

5k

1

D

R743

1

00

+3V3

R728

3k3

STANDBY

Vol

R708

47

C33

1

220n63

V

C334

220n63

V

C335

1

2n2

C336

4n7

C338

C339

C34

0

1

n

C401

1

n

C402

1

n

4

5

R4

11

39k

C4

11

100n63

V

C313

10n

1

C322

V

10µ16

V

C323

82

0

C325

4µ7 50V

R165

1

6

0,47

1

3

n47 2k

11

R566

1

5

0,27

C527

n68 2k

V

D524

1

2

RGP10

J

V

D525

1

4

RGP10

D

C529

n47 1k

1

0

R519

24M

D

STANDBY

1

2

3

TUNING

4

P3.0

5

KEY

6

V

7

8

V

9

BAND

1

0

BAND2

11

V

1

2

SECPLL

1

3

V

1

4

DECDIG

1

5

PH2LF

1

6

PH1LF

1

7

1

8

DECBG

1

9

AVL/EWD

2

0

V

2

1

V

22

IFIN1

23

IFI

24

I

25

V

26

TUNERAGC

27

AUDEEM

28

DECSDEM

29

GND2

3

0

SNDPLL

3

1

32

AVL

V

D52

RGP15D

C543

V

V

RGP15D

V

C528

100µ160V

V

SCL

SDA

OL

MUTE

SSC/P

SSA

P2

GND3

DRB

DRA

N2

REF

SC

D543

R555

0,27

1

TDA938

1

N301

AV2

V

RESET

XTALOUT

XTALIN

OSCGND

V

V

V

BLKIN

BCLIN

B2/UIN

G2/YIN

R2/VI

I

NSSW2

AUDOUT

CHROMA

CVBS/Y

GND

CVBSINT

IFV

PLLIF

EHTO

AudExt

FBISO

HOUT

1

+13

V

C522

1

000

µ25

B110

1

R556

22k

+24

C53

0

330µ35

IRI

N

AV1

DDP

DDC

PE

DDA

BO

GO

RO

VP1

O

na UNC

V

C525

470µ16

V

V

N

1

+12

1

48

1

C703

C705

n

1

D

8

C

RC5

i

XS75

1

Service

432

C724

C723

10n

47µ16

V

R723

1

00

R724

1

10k

10k

V

V

R306

4k7

2SC1674

R305

1

00

R702

3k3

R701

1k0

V70

1

PH2369

R3

11

22

0

R308

L302

47

0

C312

10n

1µ0

8

R312

1

0

R313

82

V30

k2

R704

R705

+5

V

D75

1

R72

1

1N41

R745

47k

48

R722

3k3

R733

+3

V

3

Mute

+8

V

L33

1

3k3

C744

10n

R735

3k3

10µ

47µ16

C3

11

1

n

C337

1µ50

V

drA

V

drB

R401

1

00

R402

1

00

1

2

V

R152

0

120

k

R507

120

k

VD151

4

R1522

1

5k

R1513

22

R1526

2k2

C1515

15n100V

V

R1524

27

V1513

15n100V

1N41

48

V

7

C514

100n100

VD151

6

1N41

48

R1517

47

0

151522k

R

C

470 400V

n68 2k

C1517

V1512

7
0

2SC38

K2972

R316

AGC

68

0

R318

150

k

C516

AC

TM-0076----0L

3

R504

68

C509

V

7

C
0
1
7
1

2SD

1

2

A

B

1

N702

1

2

3

4

R703

+110

C775

1

2

3

SW701

R710

1

k2

SW702

R7

0

SW703

R712

SW704

R713

1

SW705

R714
6k8

SW706

1

R775

2

3

1

00

4

5

V

D775

LED

P+

P-

11

V

+

V

-

AV/T

V

Menu

XP702

47µ16

V

XS702

1

2

+5

V

3

4

5

I

F

V

BL

BH

LNA

V

AGC

PS501

2

1

XS502

C

C501

B

W12

L501

LCL-FS

A

1

MZ72-9RM

Rx502

1

R8

V

10k

C704

10n

R707

10k

V

3

R304

68

VD50

TVR4J

VD50

TVR4J

100n100

R709

10k

C307

10µ16

3

R301

1

4

V

00

R302

4µ7 50V

V

VD50

00

1

C304

R15

C707

5

TVR4J

VD50

TVR4J

11

5k6

R568

39

0

C72

1

1

n

+3

A2

0

1

11

+

6

5

C303

4

3

T

4µ7 50V

2

1

C503

1n 1kV

C504

1n 1kV

0µ1 300VAC

V15

K501

F502

F501

3A

F502

XS501

1

2

1

2

XP501

X5

00

A

B

11

4

1

V

A

0

W

A

1

SCL

A2

SDA

V

ss

AT24C08

N703

CW574

R706

0

6

C7

100n100V100n100

R737

3k3

R317

33k

C598

470 400V

C505

1n 1kV

6

C506

1n 1kV

5G
1
0
1

2PA

3

N504

K1010

B

2

8

dd

7

P

6

5

10k

R736

3k3

R3001

22

VD300

AC

C507

100µ400V

RGP10

VD151

VD151

1

7C

R1523

1

k8

22µ50V

C309

10n

C308

5C

C301

VD151

1N41

9

1

10µ16

C1513

47n100