background image

-t

-t

-t

C422

470p

C33

1000p

C559

0.1u

35

C408

22p

R427

100k

R305

1.8k

C461

1000p

C377

1000p

L603

5T

C218

10u6.3

C43

22u10

R118

0

C444

470p

L601

6T

C527

1000p

R422

10k

C438

0.5p

R304

4.7k

C511

1000p

C437 470p

C212

1200p

R161

1.2k

C453

220p

R322

100

B

5M

C164

10u6.3

R259

12k

R301

4.7k

C617

1000p

IC33

NJM78L05UA

2

COM

3

IN

1

OUT

2

COM

3

IN

1

OUT

2SC3357

Q502

R371

39k

C88

4p

R252

470k

L504

27n

2SA1641(S,T)

Q31

R261

120k

C263

0.033u

C55

0.1u

R36

1.5k

C232

1000p

5C

C514

1000p

R200

680

R103

1k

R258

2.7k

L421

100n

R227

22k

C29

470p

C301

4.7u6.3

C376

1000p

R527

220k

C502

1000p

R350

27k

C220

4.7u6.3

R353

100k

BSB

C163

1000p

C603

1000p

C441

0.5p

R324

0

C458

220p

C257

0.039u

R41

330k

TC401

10p

R416

470

C41

22u10

C268

1u

R229

680k

C361

1000p

C215

0.1u

R606

220

C432

0.3p

R101

47k

R376

100k

C307

0.022u

R166

1k

C45

22u10

C530

0.47u

8C

C319

1000p

C281

1000p

R509

22

C213

3300p

C312

0.1u

R526

150

R37

0

TH301

100k

R514

0

L304

330n

8R

5C

5C

C231

1000p

C233

4.7u6.3

C310

0.33u

C467

1000p

L404

R162

1.5k

R278

12k

C52

1000p

C515

27p

8T

D409

DAN235E

L604

5T

8T

R419

2.7k

R218

82k

C465

22p

R34

4.7k

R521

100

C87

3p

C44

22u10

C372

1000p

C363

0.01u

R268

1k

R359

220k

R319

10k

C456

2p

C507

1000p

R208

1.5k

C459

1000p

R271

3.3k

8T

C34

330u

25

C324

0.01u

C450

22u10

L509

9.5T

R211

82k

R39

470k

Q254

DTC363EU

C366

0.1u

R257

1M

C387

1000p

R426

47k

R233

6.8k

R360

470k

R255

5.6k

C278

0.1u

KTA1664(Y)

Q35

C227

0.01u

R230

220k

R421

1.5k

R351

470

68

5C

R207

*

D404

MA2S304

C54

0.1u

D403

MA2S304

L508

2.5T

C428

470p

8R

69

5M

D608

1SS355

C421

470p

R106

1k

C314

0.01u

34

D602

MA4PH633

R306

270k

L302

330n

CNVSS

C410

10u6.3

C606

0.5p

D303

DAN222

C448

470p

R366

470

R438

22k

R203

100k

R265

5.6k

R308

330k

C311

0.1u

C254

0.22u

C364

1000p

SB

73

R275

15k

R33

47k

R276

47k

R370

56

C36

1000p

R412

10k

D405

MA2S304

2SC4919

Q201

C306

1000p

R273

12k

C205

0.1u

C258

0.01u

C504

1000p

2SC4738(GR)

Q403

C536

1000p

R510

1.5k

2SA1832(GR)

Q402

L501

68n

C384

2p

5M

C350

470p

C274

0.22u

C463

1000p

C151

1800p

D406

MA2S304

5M

R212

82k

L416

R315

18k

C546

0.47u

R800

F501

C403

100p

R520

18k

R605

15k

C519

82p

C383

1000p

R369

0

R444

1k

C101

1000p

R109
1.5k

C39

0.1u

IC66

AT24C64A10SI18
or CAT24WC64JI

1

A0

2

A1

3

A2

4

GND

5

6

7

8

D61

02DZ18(X,Y)

L201

R531

47k

R442

100

C272

1000p

R251

47k

R205

820

R409

100k

70

IC402

UPB1509GV

1

2

3

4

5

6

7

8

D401

MA2S111

R516

0

Q36

KRC102S

R519

33k

C28

220p

C409

0.1u

B

C104

0.1u

C276

1000p

R281

0

R356

1k

5M

R317

10k

C49

0.01u

34

C550

68p

C526

680p

5M

R105

1k

C436

0.75p

L303

330n

R165

1k

R266

5.6k

C266

1u

R425

47k

8R

R435

100

C277

1000p

2SA1745(6,7)

Q33

C557

0.01u

R61

470

R415

0

C161

1000p

C615

22p

L405

8C

R349

47k

R504

270

C371

2p

C414

0.1u

R111

1k

C251

4.7u6.3

R530

1k

R102

47k

D301

MA742

Q32

KRC102S

R511

47

C531

47u25

C38

1000p

D251

MA742

74

C505

1000p

R437

1k

C545

1000p

R325

33k

R533

0

D201

DAN222

5C

C452

470p

D606

MA742

5M

L605

9.5T

C513

1000p

R503

18

C358

1000p

L101

C522

1000p

R86

0

C610

0.5p

C230

0.1u

C308

1000p

R436

120k

C322

56p

C608

27p

71

R277

68k

R164

1k

C460

18p

C271

1200p

CN5

C512

1000p

C402

100p

5C

C616

1000p

C208

0.01u

L301
L34-4554-05

C207

*

IC201

NJM2100V

1

2

3

4

5

6

7

8

V+

C42

0.01u

69

R430

220

35

C529

1000p

C275

1u

TC402

10p

C455

3p

C61

1000p

D32

1812L110PR

8C

L602

5T

8C

R87

1k

R254

2.7k

89

R434

0

C574

1000p

C554

1000p

R312

47k

C53

1000p

C560

1000p

C613

27p

C576

220p

C265

0.1u

R410

8.2k

R256

5.6k

R81

47k

5C

C51

10u6.3

R123

0

D503

02DZ5.1(Y)

C416

1000p

C378

1000p

C280

47u16

R602

22k

R313

100k

D502

DA221

17

5C

R217

220k

C389

1000p

C302

1000p

R70

47k

L506

9.5T

71

R104

1k

L420

150n

C413

0.01u

C279

4.7u16

R601

22k

R321

22k

D202

1SS372

C351

33p

C228

10u6.3

R413

10k

R502

270

R82

0

C411

0.1u

R314

2.2k

C516

820p

R279

4.7k

C204

2.2u10

87

L352

560n

R220

15k

R310

1k

C326

0.01u

C203

*

C418

1000p

C425

0.1u35

R263

91k

C509

15p

BSB

D501

1SS355

L507

1T

C379

1000p

R221

15k

R151

10k

R379

100k

8C

R407

1.5k

C89

4p

C253

0.22u

C262

1000p

R232

9.1k

R532

0

C518

33p

C423

0.047u35

D607

MA742

R518

33

R513

2.2k

C217

10u6.3

R35

47k

C466

100p

C430

4.5p

C313

15u6.3

C66

1000p

Q34

KRC102S

C40

0.1u

L503

27n

70

C323

270p

R274

15k

R62

0

C273

1u

C611

2p

R512

10

C56

1000p

8R

R417

220k

L417

C510

8p

R525

56k

R364

0

R401

1k

R250

12k

R505

2.2k

R529

470

8R

C406

1000p

R253

0

C267

0.47u

C464

1000p

R231

120k

5M

5M

C360

1000p

C357

0.01u

8T

R152

4.7k

C558

0.01u

D302

DAN222

R433

4.7k

R31

4.7k

C549

220p

C462

10p

R373

47k

R40

390k

L422

56n

8C

Q255

KRC102S

C214

150p

R528

470

C35

1000p

R411

5.6k

C525

1000p

C316

0.1u

R402

1k

D31

ZSH5MA27

R213

330k

R214

68k

C250

0.1u

R272

3.9k

R414

470

C375

1000p

R403

1k

C83

0.1u

C451

470p

C468

220p

C315

0.1u

C424

1u16

L502

68n

IC401

MB15A02

11

12

13

14

15

16

17

18

19

20

C380

100p

L419

100n

R219

180k

R110

47k

C210

0.1u

C454

6p

R443

2.2k

C417

1000p

R441

100

R524

470

Q61

KRC404RTK

8R

R228

10k

C457

1000p

L403

10u

R264
120k

R38

330k

C501

1000p

R352

100

R362

470k

8T

C506

1000p

2

COM

1

IN

3

OUT

R316

22k

C556

1000p

R226

100k

C82

1000p

C362

1000p

R354

330

R249

15k

C503

100p

D408

MA2S111

D402

HZU5ALL

C401

100p

C206

*

R215

68k

C252

39p

8R

C517

3p

C50

0.01u

C255

8200p

C370

1000p

8C

R318

10k

R501

1k

C201

0.1u

C309

0.022u

C283

1000p

C359

8p

C37

1000p

R303

22k

C90

3p

R439

47k

C226

4700p

R365

100k

IC501

TA75W01FU

1

2

3

4

VEE

5

6

7

8

VCC

D605

XB15A709

C152

3900p

C261

0.01u

C431

5p

R368

100k

R506

10k

L351

820n

C202

1000p

R323

120k

C211

820p

C404

15u6.3

R309

3.3k

R507

10

2SC4649(N,P)

Q411

C162

4.7u6.3

R216

270k

R432

1k

R408

10

R262

18k

R204

*

C256

0.018u

R311

33k

C449

470p

C607

2p

C303

4700p

R418

1k

2SC3357

Q501

8C

R431

100k

C102

0.1u

R260

220k

R302

4.7k

R206

100

C30

1000p

R320

10k

C225

1u16

C528 220p

R404

10k

R269

39k

R32

470

R209

240k

C264

0.033u

R280

390

C317

0.1u

R420

1k

R375

100k

C353

0.01u

R440

100

17

5M

C555

5p

R225

150k

C412

10u6.3

R210

18k

C442

10u6.3

C318

0.1u

R428

47k

C25

1000p

C15

100p

R43

820

C33

1000p

C19

680p

C4

100p

D26

B30-2205-05

Q12

UMG3N

D21

B30-2205-05

J1

1

8

R41

56

CP1

R90-0724-05

C35

4700p

D24

B30-2205-05

R54

56

C39

0.1u

D2

C22

1000p

Q6

KRC102S

C40

0.1u

L1

R44

18k

CN1

R21

10k

D30

B30-2205-05

R46

100

D31

1SS355

C27

1000p

R51

0

D3

B30-2205-05

R23

10k

R25

56k

D4

C38

470p

D22

B30-2205-05

C36

1u

D23

B30-2205-05

R10

1.2k

R48

47k

R26

3.9k

D19

B30-2205-05

R49

56

C32

1000p

C24

0.1u

C31

1000p

R42

2.7k

Q10

KRA225S

R47

47k

D25

B30-2205-05

R45

33k

C16

100p

BL

NC

NC

NC

SEG0

SEG1

SEG2

SEG3

SEG4

SEG5

SEG6

SEG7

SEG8

SEG9

SEG10

SEG11

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

32

33

34

35

36

37

38

39

40

41

42

43

44

45

46

47

48

49

NC

50

KI1

51

KI2

52

KI3

53

NC

54

NC

55

NC

56

VDD

57

VDD1

58

VDD2

59

VSS

60

OSC

61

DO (to cpu)

62

CE

63

CL

64

DI (from cpu)

C34

4700p

D29

B30-2205-05

D20

B30-2205-05

R53

0

D27

B30-2205-05

R22

10k

VR1

R31-0646-05

R50

56

C30

0.1u

R52

0

D28

B30-2205-05

R8

1k

R4

1k

R2

100

R3

100

CN1

R7

1k

R5

1k

R8

1k

R6

1k

C13

470p

C14

470p

C10

1000p

C15

470p

R1

0

D3

D

A221

D2

D

A221

D4

D

A221

D1

D

A221

CN2

1

2

3

4

5

6

7

D5

DA221

C16

470p

D6

DA221

C19

470p

C17

470p

C18

470p

C20

470p

IC205

BU4S66

1

I/O

2

O/I

3

VSS

4

5

R237

0

R236

10k

C235

1u

PR9

PR1

PKS

SQC

T

ONE

DTMF

PLLE

NC

NC

GND

CNVSS

EVLLD

BSHIFT

RESET

XOUT

VSS

XIN

VCC

GND

NC

PO

WER

INT

NC

TX/RX

UL

NC

NC

EEPSDT

EEPCK

26

27

28

29

30

31

32

33

34

35

36

37

38

39

40

41

42

43

44

45

46

47

48

49

50

51

52

53

54

55

56

57

58

59

60

61

62

63

64

65

66

67

68

69

70

71

72

73

74

75

76

P1MT

77

MICMT

78

NC

79

8RC

80

8TC

81

NC

82

SBC

83

NC

84

NC

85

NC

86

CM

87

MICKEY2

88

MICKEY

89

VOL

90

TEMP2

91

TEMP1

92

RSSI

93

SQIN

94

AVSS

95

DTMF IN

96

VREF

97

AVCC

98

NC

NC

NC

74

73

5C

R234

0

IC204
BU4S66

1

I/O

2

O/I

3

VSS

4

CONT

5

VDD

C222

0.1u

R224

560

PKD

PKD

5C

R124

47k

R93

6.8k

R92

1k

R94

10k

R91

1k

TH98

100k

C97

1000p

TH97

100k

C98

1000p

87

R127

47k

88

89

C216

39p

IC161

M62363FP

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

R222

10k

IC203

BA10324AFV

VCC

VEE

C209

68p

C165

1u

X401

L77-1944-05

R406

10k

2SC2412K

Q302

C321

68p

8C

5C

5M

88

C475

1000p

C476

1000p

C473

1000p

C400

0.1u

L406

270n

L407

270n

C426

30p

L409

27u

L408

33n

C427

8p

L410

27u

R423

220

C429

1p

R429

270

L411

270n

C434
150p

L413

47n

C435

10p

L412

270n

L414

27u

C439

10p

R424

100

L415

27u

C440

11p

L401

L418

33n

C474

1000p

R522

330

R523

39k

C533

100p

L505

15n

C542

12p

C541

12p

C552

22p

C553

3p

C614

*

C623

3p

C602

12p

C605

15p

D603

XB15A709

VR601

47k

R607

330

SQC

PKS

PR1

PR9

5M

68

R125

47k

R119

*

R120

*

R122

0

R121

*

R246

150k

C305

330p

C304

330p

1

2

3

4

VCC

5

6

7

VEE

R247

120k

R248

5.6K

C249

4.7u6.3

2SC2412K

Q251

FB

R63

0

D62

MA2S077

1

NC

2

SUB

3

GND

4

VOUT

5

VCC

IC34

BD4732G

1

NC

2

SUB

3

GND

4

VOUT

5

VCC

J1

F1

FB

C282

330u25

2SC5488

Q351

R355

470

C355

18p

C354

4.5p

C356

3p

R358

220

R361

180

C367

150p

R363

330k

C369

3p

L354

50n

L355

50n

D351

HVC376B

C368

27p

R367

100

C373

6p

C374

27p

D352

HVC376B

3SK318

Q352

G1

D

S

G2

3SK318

Q353

G1

D

S

G2

R372

47k

R374

27k

L356

50n

C382

27p

C386

36p

L357

35.5n

D353

HVC376B

D354

HVC376B

C388

7p

C390

9p

C391

16p

C471

10p

S1

W02-3665-05

C128

1000p

R126

47k

L423

R114

47k

5M

D407

1SV278

IC202

BA10358FV

1

2

3

4

5

6

7

8

VCC

2SK1830

Q354

C385

8p

C381

4.5p

2SK3019

Q252

2SK3019

Q253

PD55003TR

Q503

C544

15p

C543

15p

KEC

SPLATTER FILTER

8TC(CPU80)

FM DEMODULATION

OR GATE

W/NI(EV

OL1)

TP

5C

8TC

RX VCO

TX VCO

CV

VOTAGE
DROPPED

CHARGE PUMP

MIC AMP/
IDC

TCXO

CURRENT
PROTECTION

IDC

AGC

BUFFER
AMP

BUFFER AMP

TEMPERATURE
COMPENSATION

MIC

CK(CPU54)

TEMPERATURE
COMPENSATION

DT(CPU53)

5M

AUDIO
FILTER

SQIN(CPU93)

WIDE(CPU65)

B

TXD

DT(CPU53)

HPF

RXD

TX-RX UNIT (X57-685X-XX)

OVER VOLTAGE

DETECTION

E

VOLTAGE
REGULATOR
(8C)

W/NO(EV

OL2)

RF SWITCH

REVERSE
CONNECTION
PROTECTION

DI

PLLE(CPU3)

NARROW

FR

OO(EV

OL23)

APC CONTROLLER

UL(CPU21)

CK(CPU54)

FINAL AMP

PLLE(CPU3)

8CL

D603,605

8CL

LIPPLE
FILTER

DIGITAL
POTENTIOMETER

TEMPERATURE
COMPENSATION

NARROW(CPU64)

1/2Vcc

D31

TV

RX VCO

MODI(EV

OL9)

TX VCO

5M

D351,352

LIMITTER

KDC

PC/TV SW

IF SWITCH

RF BPF TUNING

KEC

PC

D353,354

IF AMP

8T

KEC

Q402,403

Q35,36

APC VOLTAGE
DETECT

D405,406

BEAT
SHIFT

BUFFER AMP

VOLTAGE
DETECTOR
(RESET)

D606,607

8C

D403,404

50,4MHz

ANT SW 

ANT SW 

D1-4

VOLTAGE
REGULATOR
(5M)

8TC(CPU80)

8RC(CPU76)

D32

CV

D501

DRIVE AMP

8R

RX

8R

IF SWITCH

1,1A

W/NI(EVOL1)

EEPROM

RF AMP

MIC AMP/
SPLATTER
FILTER

5C

MOD

DETECTION

MODULATION

8C

VOLTAGE
DETECTOR
(INT)

1/2Vcc

CPU

DC SW (SB)

8C

AGC/
MIC MUTE

AFV

AF MUTE

AF MUTE

W/NO(EV

OL2)

NOISE AMP/
SQL AMP

T/R SW

AFI(EVOL12)

DIVIDER
(HETERO)

VOLTAGE
PROTECTION

PLL IC

KEC

AFM(CPU50)

D407

T/R SW

Q33,34

KEC

8C

SB

OVER VOLTAGE
DETECTION

16.8MHz

BEAT
SHIFT

MOD

LIPPLE
FILTER

RF AMP

VOLTAGE
REGULATOR
(5C)

WIDE

SURGE ABSORPTION

KEC

RF AMP/
DRIVE STAGE

AF MUTE

MOD

BUFFER AMP

SUM AMP

RF BPF TUNING

AF MUTE

MIXER

RF AMP

8R

PLL SYNTHESIZER

SEG9

SEG15

SEG7

SEG10

SEG23

SEG3

SEG21

SEG11

COM2

SEG13

COM1

RESISTOR

COM3

SEG24

KEY ILLUMINATION 

SEG1

LCD (B38-0885-05)

SEG17

SEG27

SEG29

SEG4

SEG26

SEG31

SEG5

SEG14

SEG18

SEG19

VARIABLE

SEG8

SEG12

SEG2

SEG20

LCD ILLUMINATION

DISPLAY UNIT (X54-3450-10)

SEG22

MR

SEG0

SEG16

COM0 

SEG6

SEG28

SEG25

SEG30

POWER

SQC

PKS

PR1

PR9

PKD

8RC(CPU76)

IC252

LA4600

1

2

3

4

5

6

7

8

9

10

PTT

BRI

RXD

POWER

VOL

8C

5C

DO

CL

CE

DI

MICKEY

ENCB

CM

ENCA

MIC

ENCODER

8TC(CPU80)

AMPSW(CPU52)

SPM(CPU51)

BRI

8RC(CPU76)

VOLO(EVOL11)

W/NO(EVOL2)

MIC

PC/TV

LCD CONTROLLER

KEY BACKLIT SWITCH

DIMMER
FUNCTION
SWITCH

LCD BACKLIT

D2-4

LCD BACKLIT SWITCH

DC SWITCH

KEY BACKLIT

D19-30

MHz & MENU
ADJUASTMENT

ON/OFF & VOLUME
ADJUASTMENT

SINGLE
ANALOG SW

SINGLE
ANALOG SW

DC SW (SB)

DC SW (8R)

DC SW (8T)

MOD BUFFA

1/2Vcc

DC
AMP

Q201

RF AMP/
DRIVE STAGE

OVER VOLTAGE
DETECTION

SURGE ABSORPTION

D5,6

BRI

CM

MICKEY

VOL

TV

AUDIO AMP

RIPPLE
FILTER

144-148MHz

144-146MHz

TM-271A

TM-271E

E

K

M3

M2

M4

X57-685X-XX

0-23

0-10

0-21

0-22

2-71

1

2

3

4

5

6

7

8

9

10

CLK

NC3

D

ATA

LE

FC

NC4

FOUT

P

NC5

R

OSCIN

NC1

OSCOUT

VP

VCC

DO

GND

LD

NC2

FIN

2SC4649(N,P)

Q404

2SK508NV(K52)

Q406

2SJ347

Q407

2SK508NV(K52)

Q405

2SC5108(Y)

Q410

Q408

KRX102U

2SC2412K

Q440

CONT

VDD

2SK1830

Q87

X86

8.00MHz

L78-1409-05

2SK1830

Q86

8

9

10

11

12

13

14

1

2

3

4

5

6

7

2V

OLI

2V

OLO

BLO

BLI

1V

OLI

1V

OLO

DO

VDF

ref

RESET

GND

FRQI

FRQO

PC/TV

O

PC/TVI

VDD

LD

CLK

DA

T

MODI

MODO

W/NO

W/NI

BRII

BRIO

QT/DQT(CPU1)

1/2Vcc

EVLLD(CPU8)

UL(CPU21)

PLLE(CPU3)

M1MT(CPU76)

XOUT(CPU11)

XIN(CPU13)

TX DTMF

BSHIFT

P9MT(CPU75)

MICMT(CPU77)

TX/RX (CPU20)

W/NO(EVOL2)

W/NI(EVOL1)

MIC

VOLO(EVOL11)

VOLI(EVOL12)

DT(CPU53)

CK(CPU54)

BRI

PLLE(CPU3)

MODO(EV

OL10)

PC/TV

UL(CPU21)

PC/TV

O(EV

OL3)

EVLLD(CPU8)

P9MT(CPU75)

MICMT(CPU77)

MOD

TX/RX (CPU20)

TX/RX (CPU20)

QT/DQT(CPU1)

EVLLD(CPU8)

TX DTMF

UL(CPU21)

PLLE(CPU3)

XOUT(CPU11)

XIN(CPU13)

POWER

M1MT(CPU76)

P9MT(CPU75)

MICMT(CPU77)

CK(CPU54)

DT(CPU53)

W/NO(EVOL2)

PC/TV

W/NI(EVOL1)

MIC

VOLI(EVOL12)

VOLO(EVOL11)

BRI

SQIN(CPU93)

RSSI(CPU92)

SBC(CPU82)

1/2Vcc

DTMF IN(CPU95)

BSHIFT

IC101

30622MAA-B85GP

NC

SQC

PKS

CLKFLS

BSYFLS

TXD

RXD

PTT

NC

NC

NC

EMPFLS

NC

NC

NC

NC

CEFLS

NC

NC

NC

NC

NC

AFM

EEPWP

NC

SPM

AMPSW

DT

CK

NC

DST1

DST2

DST3

DST4

VCC

NC

VSS

ADJ

NARR

O

W

WIDE

NC

NC

CL

CE

DO(to LCD)

DI(from LCD)

NC

ENCB

ENCA

P9MT

99

100

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

SPM(CPU51)

AMPSW(CPU52)

W/NI(EVOL1)

VOLI(EVOL12)

SW1

SW2

OUT

VCC2

VCC1

IN

IN

GND

RD70HVF1-01

Q504

AMPSW(CPU52)

MIC

8TC(CPU80)

SPM(CPU51)

8RC(CPU76)

BRI

PC/TV

VOLO(EVOL11)

W/NO(EVOL2)

2SC2412K

Q301

8

9

10

11

12

13

14

IC251

BA10324AFV

DTMF IN(CPU95)

INT(CPU18)

RESET(CPU10)

SBC(CPU82)

1/2Vcc

SQIN(CPU93)

INT(CPU18)

RESET(CPU10)

SBC(CPU82)

IC35

BD4740G

IC31

KIA7808AF

IC32

NJM78L05UA

AMPSW(CPU52)

VOLO(EVOL11)

SPM(CPU51)

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

Func

CALL

VFO

REV

CM

HOOK

MIC

ME

PTT

GND

8C

MBL(Key A)

ENCODER A

CM

ENCODER B 

MIC KEY 

DI(from LCD) 

CE

CL

DO

5C

8C

VOL

POWER

RXD

BRI

PTT

GND

ME

MIC

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

SDA

SCL

WP

VCC

SQIN(CPU93)

SBC(CPU82)

RESET(CPU10)

INT(CPU18)

1/2Vcc

DTMF IN(CPU95)

RSSI(CPU92)

IC301

TK14489V

SCAN

SCAN

SQLIN

FLAMPO

RFIN

GND

Hy_C

FLAMPI

RSSI

AFO

VCC

IF_IN

DEC1

DEC2

PH_S

QUCO

OSC(B)

OSC(E)

NC

MIX_O

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

2SB1132(Q,R)

Q9

IC3

LC75854W

or

PT6554LQ

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

SEG28

SEG29

SEG30

SEG31

NC

NC

NC

COM0

COM1

COM2

COM3

KS1

KS2

NC

NC

NC

SEG12

SEG13

SEG14

SEG15

SEG16

SEG17

SEG18

SEG19

SEG20

SEG20

SEG22

SEG23

SEG24

SEG25

SEG26

SEG27

C203

0.027u

0.027u

0.047u

0.027u

0.027u

1000p

1000p

680p

1000p

C206

1000p

0.022u

0.022u

0.022u

0.022u

C207

0.039u

NO

C614

3p

NO

NO

NO

0

0

R119

0

NO

0

0

0

NO

R120

NO

NO

0

R121

0

NO

NO

NO

10k

18k

R204

18k

18k

18k

1M

750k

750k

750k

750k

R207

XF351

49.95MHz

L71-0620-05

CF301

L72-0993-05

CF302

L72-0999-05

C259

0.01u

C260

0.01u

C270

4.7u6.3

R55

0

R:3.22V

R:4.65V

T:1.6V

R:4.02V

R:4.27V

T:4.16V

R:13.8V
T:13.45V

T:1.45V

R:0.66V

T:0.48V

R:4.98V

R:2.7V

R:7.9V

R:13.8V

T:0.82V

N:5V
W:0V

T:1.23V

R:2.46V

R:4.98V

R:1.8mV(BS OFF)
  5V(BS ON)

T:7.55V

R:4.98V

R:7.99V

R:4.92V
T:3.9mV

R:13.66V
T:12.94V

R:7.04V

R:7.42V

R:4.90V

R:0.74V
T:0.62V

R:4.31V

R:3.37V

R:6.11V

R:6.17V

R:4.84V
T:5.73V

4.98V

R:7.9V

R:0.75V

R:1.15V

R:0.71V

R:0.56V

R:3.37V

R:4.7mV(SQ OFF)
  4.97V(SQ ON)

R:2.48V

R:1.44V

R:7.7V

R:6.34V

R:6.64V

R:4.98V

N:0V
W:5V

T:1.26V

R:1.74V

T:6.8V

R:3.3V

T:0.88V

4.97V

R:4.98V

R:6.96V

T:6.8V

T:7.82V

R:0.97V

R:7.9V

R:4.96V

T:0.76V

T:7.84V

R:1.23V

R:7.95V

R:2.8mV

R:0.1mV

R:0.76V

R:4.05V

R:7.98V

R:5V

R:7.01V

R:2.7V

7.30V

7.90V

7.10V

4.96V

4.94V

4.96V

5.02V

R:7.84V

T:5.61V

T:2.5V

T:1.46V

T:7.85V

R:0.87V

T:4.97V

R:2.88V

R:5.86V

R:3.16V

7.90V

T:7.84V

4.80V(BRIGHTNESS MAX)
0V(BRIGHTNESS OFF)

Summary of Contents for TM-271A

Page 1: ...ION 27 PC BOARD DISPLAY UNIT X54 3450 10 28 TX RX UNIT X57 685X XX 30 SCHEMATIC DIAGRAM 34 BLOCK DIAGRAM 38 LEVEL DIAGRAM 40 SPECIFICATION BACK COVER CONTENTS Microphone T91 0624 05 Cabinet A01 2193 01 Panel assy A62 1088 03 Knob Encoder K29 9293 03 Knob Volume K29 9292 03 Key top K29 9291 01 Microphone T91 0641 05 Cabinet A01 2193 01 Panel assy A62 1088 03 Knob Encoder K29 9293 03 Knob Volume K29...

Page 2: ...SYSTEM PLL VCO 16 8MHz 50 4MHz ANT RX TX SP MIC 1 2 Fig 1 Frequency configuration IF Amplifier The first IF signal is amplified by Q351 and then goes to IC301 FM processing IC The signal is heterodyned again with a second local oscillator signal within IC301 to create a 450kHz second IF signal The second IF signal is then fed through a 450kHz ceramic filter Wide CF301 Narrow CF302 to further elimi...

Page 3: ...1 IC161 W NO EVOL2 AF PA IC252 SP IF IC IC301 Q301 NOISE AMP D301 IC301 IC101 AFO RSSI DET CPU IF SYSTEM SQIN RSSI Fig 3 Wide Narrow switching circuit Fig 4 AF signal system Fig 5 Squelch circuit PLL Frequency Synthesizer The PLL circuit generates the first local oscillator signal for reception and the RF signal for transmission PLL The frequency step of the PLL circuit is 5 or 6 25kHz A 16 8MHz r...

Page 4: ...e low pass filter removes unwanted high frequency harmonic com ponents and the resulting signal is transmitted through the antenna terminal See Fig 8 APC Circuit The automatic transmission power control APC circuit detects part of a final amplifier output with a diode D606 D607 and applies a voltage to IC501 IC501 compares the APC control voltage PC generated by the D A converter IC161 and DC ampl...

Page 5: ...LCD driver The LCD driver monitors the status of the KI1 to KI3 and KS1 to KS2 ports If the state of one of the ports changes the LCD driver assumes that the key at the matrix point corre sponding to that port has been pressed Encode The DCS and CTCSS signals are output from QT DQT of the CPU IC101 and summed with the external pin DI line by the summing amplifier IC203 and the resulting signal goe...

Page 6: ...hen CPU send to EEPROM IC66 the backup data and go into STOP mode This circuit has an overvoltage protection circuit If a DC voltage of 18V or higher is applied to the base of Q61 this voltage turns Q61 on and will set to high on CPU port 18 INT Then CPU send to EEPROM IC66 the backup data and go into stop mode See Fig 16 IC101 CPU DTMF IN W NO EVOL2 95 Q71 SW Q31 SW Q32 SW Q61 SW IC33 AVR D61 D62...

Page 7: ...lways output whether the squelch is open or closed PR1 is the 1200bps data communications reception out put It outputs the FM detection circuit output through an AF filter IC251 Output is controlled with the mute switch Q252 according to whether squelch is open or closed See Fig 17 Squelch Signal Output Circuit The squelch circuits is input to the TNC to prevents con flicts from occurring between ...

Page 8: ... mute 51 SPM O Speaker mute 52 AMPSW O AF AMP switch Pin No Name I O Function 53 DT O Common data 54 CK O Common clock 55 NC I 56 DST1 I Destination 1 57 59 DST2 DST4 I Destination 2 4 60 VCC 5V 61 NC I 62 VSS GND 63 ADJ I For adjustment mode 64 NARROW O Wide Narrow 2 65 WIDE O Wide Narow 66 67 NC I 68 LCDCL O Clock for LCD 69 LCDCE O Chip enable for LCD 70 LCDDO O Output data to LCD 71 LCDDI I In...

Page 9: ...ile SPM is H Q255 Transistor AF mute Active while AMPSW is H Q301 Transistor Noise amplifier SQL amplifier Ref No Parts name Description Q302 Transistor Buffer amplifier 16 8MHz 3rd over tone Q351 Transistor IF amplifier Q352 FET Mixer Q353 FET RF amplifier LNA Q354 Transistor PC TV switch Q402 403 Transistor Charge pump Q404 Transistor RF amplifier PLL F in Q405 FET RX VCO Q406 FET TX VCO Q407 FE...

Page 10: ... 1544 01 PACKING SHIELDING COVER 31 1A G53 1548 02 GASKET 33 2C 1D H12 3112 05 PACKING FIXTURE 34 3D H13 1190 02 CARTON BOARD 36 1D H25 2341 04 PROTECTION BAG 37 2D H52 1995 12 ITEM CARTON CASE K M2 37 2D H52 2027 02 ITEM CARTON CASE M3 37 2D H52 2028 02 ITEM CARTON CASE M4 37 2D H52 2029 12 ITEM CARTON CASE E 39 3C J19 1584 05 MIC HOLDER ACCESSORY 40 3D J29 0662 03 BRACKET ACCESSORY 42 3A K29 929...

Page 11: ...C206 CK73GB1H102K CHIP C 1000PF K M4 C206 CK73GB1H681K CHIP C 680PF K E C207 CK73GB1C223K CHIP C 0 022UF K K M2 M3 C207 CK73GB1C223K CHIP C 0 022UF K M4 C207 CK73GB1C393K CHIP C 0 039UF K E C208 CK73GB1H103K CHIP C 0 010UF K C209 CC73GCH1H680J CHIP C 68PF J C210 CK73GB1C104K CHIP C 0 10UF K C211 CK73GB1H821K CHIP C 820PF K C212 CK73GB1H122K CHIP C 1200PF K C213 CK73GB1H332K CHIP C 3300PF K C214 CC...

Page 12: ...CK73GB1H103K CHIP C 0 010UF K C414 CK73GB1C104K CHIP C 0 10UF K C416 418 CK73GB1H102K CHIP C 1000PF K C421 422 CK73GB1H471K CHIP C 470PF K C423 C92 0555 05 CHIP TAN 0 047UF 35WV C424 C92 0004 05 CHIP TAN 1 0UF 16WV C425 C92 0001 05 CHIP C 0 1UF 35WV C426 CC73GCH1H300J CHIP C 30PF J C427 CC73GCH1H080B CHIP C 8 0PF B C428 CK73GB1H471K CHIP C 470PF K C429 CC73GCH1H010B CHIP C 1 0PF B C430 CC73GCH1H4R...

Page 13: ...H L413 L40 4778 67 SMALL FIXED INDUCTOR 47NH L414 415 L40 2702 86 SMALL FIXED INDUCTOR 27UH L416 417 L92 0443 05 FERRITE CHIP L418 L41 3375 06 SMALL FIXED INDUCTOR L419 L41 1085 06 SMALL FIXED INDUCTOR L420 L41 1585 06 SMALL FIXED INDUCTOR L421 L41 1085 06 SMALL FIXED INDUCTOR L422 L40 5675 92 SMALL FIXED INDUCTOR 56NH L423 L92 0443 05 FERRITE CHIP L501 502 L41 6875 08 SMALL FIXED INDUCTOR L503 50...

Page 14: ...73GH1J913D CHIP R 91K D 1 16W R264 RK73GH1J124D CHIP R 120K D 1 16W R265 RK73GH1J562D CHIP R 5 6K D 1 16W R266 RK73GB1J562J CHIP R 5 6K J 1 16W R268 RK73GB1J102J CHIP R 1 0K J 1 16W R269 RK73GB1J393J CHIP R 39K J 1 16W R271 RK73GB1J332J CHIP R 3 3K J 1 16W R272 RK73GB1J392J CHIP R 3 9K J 1 16W R273 RK73GB1J123J CHIP R 12K J 1 16W R274 275 RK73GB1J153J CHIP R 15K J 1 16W R276 RK73GB1J473J CHIP R 47...

Page 15: ...CHIP R 2 2K J 1 10W R514 R92 1217 05 CHIP R 0 OHM R516 R92 0670 05 CHIP R 0 OHM R518 RK73EB2B330J CHIP R 33 J 1 8W R519 RK73GB1J333J CHIP R 33K J 1 16W R520 RK73GB1J183J CHIP R 18K J 1 16W R521 RK73GB1J101J CHIP R 100 J 1 16W R522 RK73EB2B331J CHIP R 330 J 1 8W R523 RK73GB1J393J CHIP R 39K J 1 16W R524 R92 1215 05 CHIP R 470 J 1 2W R525 RK73GB1J563J CHIP R 56K J 1 16W R526 R92 1261 05 CHIP R 150 J...

Page 16: ...403 2SC4738 GR TRANSISTOR Q404 2SC4649 N P TRANSISTOR Q405 406 2SK508NV K52 FET Q407 2SJ347 FET Q408 KRX102U TRANSISTOR Q410 2SC5108 Y TRANSISTOR Q411 2SC4649 N P TRANSISTOR Q440 2SC2412K TRANSISTOR Q501 502 2SC3357 TRANSISTOR Q503 PD55003TR DRIVE FET Q504 2B RD70HVF1 01 FINAL FET TH97 98 NCP18WF104J03 THERMISTOR TH301 NCP18WF104J03 THERMISTOR Ref No Address Parts No Description Desti nation New p...

Page 17: ... Dx8 12 13 14 29 Ax2 A Cx12 26 23 13 14 IC252 Q504 25 27 9 8 Cx2 Cx2 6 701 S No label 702 Standard label K 700 Caution label 703 Sticker M3 28 44 43 48 15 42 24 24 Bx2 16 103 101 104 102 TX RX unit Display unit A M2 6 x 8 N67 2608 46 B M2 x 10 BLK N80 2010 45 C M2 6 x 6 Br Tap N87 2606 46 D M2 6 x 14 Br Tap N87 2614 46 ...

Page 18: ...M3 M4 46 Screw set N99 0395 05 49 Microphone T91 0624 05 M2 M4 704 Pamphlet 705 Warranty card 36 Protection bag H25 2341 04 36 Protection bag H25 2341 04 33 Packing fixture H12 3112 05 33 Packing fixture H12 3112 05 34 Carton board H13 1190 02 40 Bracket J29 0662 03 39 MIC holder J19 1584 05 37 Item carton case H52 1995 12 K M2 H52 2027 02 M3 H52 2028 02 M4 H52 2029 12 E 50 Microphone T91 0641 05 ...

Page 19: ...essage VFO Reset This resets the transceiver parameters excluding the DTMF Memory the Memory channel contents and the Call channel contents There are two methods available for reset ting the transceiver Note Menu No 7 P VFO and Menu No 10 OFFSET re turn to the factory default values VFO Reset Method 1 1 With the transceiver power OFF press VFO Power The VFO reset confirmation message appears 2 Pre...

Page 20: ...item dis play returns t Moves the adjustment item forward If it is operated when a frequency is displayed the adjustment item dis play returns y If it is pressed before determining the adjustment value the adjustment value of the Adjustment item returns to its original value u Not used in Adjustment Mode Note If Max Power for transmission is low check the DC cable If the DC cable connector has poo...

Page 21: ...ppear 136 10 136 05 CTCSS 88 5Hz Center 155 10 155 05 High 173 90 173 95 CTCSS Fine Deviation Narrow Center CT and N icon appear 155 10 155 05 DCS Fine Deviation Low DCS icon appear 136 10 136 05 DCS 023N Center 155 10 155 05 High 173 90 173 95 DCS Fine Deviation Narrow Center DCS and N icons appear 155 10 155 05 DTMF Fine Deviation Center 155 10 155 05 DTMF 9 DTMF Fine Deviation Narrow Center N i...

Page 22: ...m or less 7 Ammeter 20A 8 AF Volt Meter Frequency Range 50Hz to 10kHz AF VTVM Voltage Range 1mV to 3V 9 Audio Generator AG Frequency Range 20Hz to 20kHz or more Output 0 to 1V 10 Distortion Meter Capability 3 or less at 1kHz Input Level 50mV to 10Vrms 11 8Ω Dummy Load Approx 8Ω 10W or more 12 Regulated Power Supply 13 8V approx 20A adjustable from 9 to 17V Useful if ammeter requipped 13 Spectrum A...

Page 23: ...ing the shield cover as below Fuse To mount the fuse the cable terminal direction must be as follow Except the E type models Locator Speaker cable This side up This side up Cable terminal Cable terminal Fuse Pin 1 marker Part name label face down IC252 TX RX UNIT Component side ANT TC401 TC402 L301 BPF B E TX RX unit Foil side F501 VR601 Q503 Q504 R516 R518 R524 IC252 GND PR9 PR1 PKS SQC PKD 5M CN...

Page 24: ...dition Test equipment Terminal Parts Method Specifications Remarks Measurement Adjustment Transmitter Section 1 Frequency 1 CH TX center Frequency counter ANT Encoder Adjust to center frequency Within 50Hz 2 Transmit knob 2 Maximum 1 CH TX high Power meter VR601 55W 1W power 2 Adjustment HEX value FF alignment 3 Transmit 3 High 1 CH TX low Encoder Low 50W 1 0W power CH TX low knob Low 60W CH TX ce...

Page 25: ...or power to be within the range of 0 3W 0 6W If power found is less than 0 3W check the circuit before the Drive FET 6 MAX 1 CH TX low Wide Modulation analyzer ANT Encoder 4 0kHz Wide 100Hz Wide deviation CH TX center Wide Narrow or Linear detector MIC knob 2 0kHz Narrow 50Hz Narrow CH TX high Wide LPF 15kHz According to the large 2 AG 1kHz 50mV Oscilloscope 3 Transmit AG AF V M 7 MIC 1 CH TX cent...

Page 26: ...z Dev 3 0kHz Wide Dev 1 5kHz Narrow 4 RSSI 1 CH RX center Wide Push RSSI value writing is per writing 2 SSG output 53dBm 501µV encoder formed by the Squelch Mod 1kHz knob open item center wide Dev 3 0kHz SSG output level is changed and adjusted after SQ adjustment This adjustment should not turn the encoder 5 S meter 1 CH RX center Wide S1 2 SSG output 118dBm 0 28µV Mod 1kHz Dev 3 0kHz 6 S meter 1...

Page 27: ...nd 2 SQC Squelch Signal 3 PKS Transmission Control 4 PR1 1200bps Receive Data 5 PR9 9600bps Receive Data 6 GND Ground 7 PKD Transmission Modulation CN No Pin No Name Function CN5 1 INT SP Internal speaker 2 GND Ground DISLAY UNIT X54 3450 10 CN No Pin No Name Function CN1 1 ENC A Encoder A 2 CM Microphone Key Check 3 ENC B Encoder B 4 MIC KEY Microphone Key 5 DI Data Out from LCD 6 CE Chip Enable ...

Page 28: ...8 SEG7 S G D3 J1 MIC JACK D19 D20 D21 CALL VFO MR D22 D23 D25 D26 D27 D28 D29 VR1 POWER VOL C24 C27 C30 C31 C32 C33 C36 C38 C39 8C 8C PTT PTT MIC MIC CM CM MBL MBL GND GND ME ME HOOK HOOK C40 R55 C4 L1 D31 IC3 1 16 17 32 33 48 49 64 R21 R22 R23 R25 R46 R51 R52 R53 CP1 C15 C16 C19 LCD 28 TM 271A 271E PC BOARD DISPLAY UNIT X54 3450 10 Component side view J72 0905 09 DISPLAY UNIT X54 3450 10 Foil sid...

Page 29: ...R54 CN1 1 18 ENCA CM ENCB MIC KEY DI CE CL DO 5C 8C VOL POWER RXD BRI PTT GND ME MIC 29 Component side Foil side Layer 1 Layer 2 Component side Foil side Layer 1 Layer 2 DISPLAY UNIT X54 3450 10 Foil side view J72 0905 09 DISPLAY UNIT X54 3450 10 Component side view J72 0905 09 PC BOARD TM 271A 271E Ref No Address D2 6F D3 6J D4 5O D19 4G D20 4P D21 4E D22 4I D23 4J D24 4K D25 3G D26 3F D27 3E D28...

Page 30: ...0 R55 Q10 Q12 1 2 3 5 C4 L1 D31 IC3 1 16 17 32 33 48 49 64 R10 R21 R22 R23 R25 R26 Q6 Q9 B C E R8 R41 R42 R43 R44 R45 R46 R49 R50 R51 R52 R53 R54 CN1 CP1 C15 C16 C19 LCD 1 18 ENCA CM ENCB MIC KEY DI CE CL DO 5C 8C VOL POWER RXD BRI PTT GND ME MIC 28 29 TM 271A 271E PC BOARD Component side Foil side Layer 1 Layer 2 Component side Foil side Layer 1 Layer 2 DISPLAY UNIT X54 3450 10 Component side vie...

Page 31: ...4 5 L503 L504 L505 IC401 D251 R101 R105 R106 R118 R119 E SP R120 R121 R122 R125 R516 R518 R519 R520 R521 R523 R524 R525 R527 R5 R529 R R151 R152 C514 C516 C517 C518 C519 C522 C525 C527 C528 C529 R35 R1 R36 R2 R37 R3 C530 C531 C533 C536 C151 C152 C559 Q402 Q403 C560 L201 D503 L404 R81 R82 IC252 1 10 IC5 5 8 CN1 CN2 CN5 Q252 Q253 D S G D S G Q254 Q255 C10 1 17 18 2 CM MIC KEY CE DO 8C POWER BRI GND ...

Page 32: ...H301 C305 R349 C310 C311 C312 C313 C314 R350 C315 R351 C316 R352 R353 C317 C318 R354 C319 R355 R161 R162 R164 C128 R165 R166 C321 C322 C323 C324 C525 R379 C536 C541 C542 C350 C351 C545 C546 C353 C354 C161 C355 C549 C162 C356 C163 C164 Q201 C165 C550 C552 C553 C554 C555 D302 D303 C559 C560 L401 L403 L404 C574 C576 C389 IC501 1 4 5 8 TH97 TH98 R203 R204 R205 R206 R207 R208 R209 TEMP1 PC 8T BPF AFV 8...

Page 33: ...532 C303 R533 C304 TH301 C305 R151 R152 R349 C310 C311 C312 C313 C314 R350 C315 R351 C316 R352 R353 C317 C318 R354 C319 R355 R161 R162 R164 C128 R165 R166 C514 C321 C322 C516 C323 C517 C324 C518 C519 C522 C525 C527 C528 C529 R35 R1 R36 R2 R37 R3 C530 R379 C531 C533 C536 C151 C152 C541 C542 C350 C351 C545 C546 C353 C354 C161 C355 C549 C162 C356 C163 C164 Q201 C165 C550 C552 C553 C554 C555 D302 D303...

Page 34: ...PF L352 R308 L354 L355 R309 L356 L357 R501 IC251 1 7 8 14 R502 R503 R504 R310 R505 R506 R507 R509 R510 R325 R526 C301 C302 C306 C307 C308 C309 C501 C502 C503 C504 C505 C506 C507 C509 R356 R358 R359 C511 R360 R361 XF351 C326 R362 R363 R364 R365 R366 R367 R368 R369 R370 R371 R372 R373 R374 R375 R376 C357 C358 C359 C360 C361 D301 C362 C556 C363 C557 C544 C543 C364 C558 C366 C367 C368 Q404 C369 Q405 G...

Page 35: ...6 G S D D502 R70 0 IC101 L405 L406 L407 L408 L411 L412 R86 L413 R87 L414 5 L416 R91 R92 R93 R94 X86 C14 J72 0906 09 1 25 26 50 51 75 76 100 B E O G I I O G 33 PC BOARD TM 271A 271E Ref No Address IC31 12Q IC32 13O IC34 13M IC35 13L IC66 11L IC101 11N IC251 12B IC301 12E IC402 13G Q31 5P Q32 4P Q33 12P Q34 12P Q61 4P Q86 10N Q87 10N Q251 11B Q301 13E Q352 10F Q353 10B Q404 12I Q405 12I Q406 13J Q40...

Page 36: ...3 C515 R360 R361 XF351 C326 R362 R363 R364 R365 R366 R367 R368 R369 C526 R370 R31 R371 R32 R372 R373 R33 R374 R34 R375 R376 R4 R38 R5 R39 R6 R7 R8 R40 R41 C357 C358 C359 C360 C361 D301 C362 C556 C363 C557 C544 C543 C364 C558 R61 C366 R62 C367 R63 C368 Q404 C369 Q405 G S D Q406 G S D Q407 G S D Q408 1 2 3 5 D501 D502 C370 C371 C372 C373 R70 Q410 C374 Q411 IC101 C375 C376 C377 C378 C379 L405 L406 L4...

Page 37: ... 560 PKD PKD 5C R93 6 8k R94 10k TH98 100k C97 1000p TH97 100k C98 1000p C216 39p IC161 M62363FP 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 R222 10k IC203 BA10324AFV VCC VEE C209 68p C165 1u X401 L77 1944 05 R406 10k C475 1000p C476 1000p C473 1000p C400 0 1u L406 270n L407 270n C426 30p L409 27u L408 33n C427 8p L410 27u R423 220 C429 1p R429 270 L411 270n C434 150p L413 47n C...

Page 38: ...82 SBC 83 NC 84 NC 85 NC 86 CM 87 MICKEY2 88 MICKEY 89 VOL 90 TEMP2 91 TEMP1 92 RSSI 93 SQIN 94 AVSS 95 DTMF IN 96 VREF 97 AVCC 98 NC NC NC 74 73 R124 47k R92 1k R91 1k 87 R127 47k 88 89 2SC2412K Q302 C321 68p C474 1000p SQC PKS PR1 5M 68 R125 47k R119 R120 R122 0 R121 R246 150k R247 120k R248 5 6K C249 4 7u6 3 2SC5488 Q351 R355 470 C355 18p C354 4 5p C356 3p R358 220 R361 180 C367 150p R363 330k ...

Page 39: ...8C C309 0 022u C283 1000p C37 1000p R303 22k IC501 TA75W01FU 1 2 3 4 VEE 5 6 7 8 VCC D605 XB15A709 C261 0 01u R309 3 3k R262 18k C256 0 018u R311 33k C607 2p C303 4700p R260 220k C30 1000p C528 220p R32 470 C264 0 033u R280 390 C555 5p R4 1k R2 100 R3 100 CN1 R7 1k R5 1k R8 1k R6 1k C13 470p C14 470p C10 1000p C15 470p R1 0 D3 DA221 D2 DA221 D4 DA221 D1 DA221 8C 5C 5M 88 R522 330 R523 39k C533 100...

Page 40: ...INATION SEG1 LCD B38 0885 05 SEG17 SEG27 SEG29 SEG4 SEG26 SEG31 SEG5 SEG14 SEG18 SEG19 VARIABLE SEG8 SEG12 SEG2 SEG20 LCD ILLUMINATION DISPLAY UNIT X54 3450 10 SEG22 MR SEG0 SEG16 COM0 SEG6 SEG28 SEG25 SEG30 ENCODER LCD CONTROLLER KEY BACKLIT SWITCH DIMMER FUNCTION SWITCH LCD BACKLIT D2 4 LCD BACKLIT SWITCH DC SWITCH KEY BACKLIT D19 30 MHz MENU ADJUASTMENT ON OFF VOLUME ADJUASTMENT 144 148MHz 144 ...

Page 41: ...2 O I 3 VSS 4 CONT 5 VDD C222 0 1u R224 560 PKD PKD 5C R124 47k R93 6 8k R92 1k R94 10k R91 1k TH98 100k C97 1000p TH97 100k C98 1000p 87 R127 47k 88 89 C216 39p IC161 M62363FP 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 R222 10k IC203 BA10324AFV VCC VEE C209 68p C165 1u X401 L77 1944 05 R406 10k 2SC2412K Q302 C321 68p 8C 5C 5M 88 C475 1000p C476 1000p C473 1000p C400 0 1u L406 ...

Page 42: ... 8 8TC BRI SQIN 8C CM SPLATTER FILTER 8C 8C MIC KEY MIC IDC Q404 2SC4649 N P 16 8MHz MIC PTT TXD DO ENCB KI3 ME Q407 2SJ347 IC401 MB15A02 LD DT VOL T CV 5C Q402 2SA1832 GR CL KI2 DTM Q10 KRA225S 5C Q6 KRC102S V PLLE DISPLAY UNIT X54 3450 10 Q 2SK50 MICMT D19 30 B30 2205 05 LCD BACK LIGHT Q9 2SB1132 Q R Q12 UMG3N SW MBL BRI IC3 LCD DRIVER LC75854W LC75854W CL CE DI COM0 3 SEG0 31 MBL DO LCD GND ME ...

Page 43: ...W EEPROM Q252 253 2SK3019 8R RESET NARROW D A CONV IC33 NJM78L05UA AVR IC161 M62363FP 7 8 3FP BPF Q36 KRC102S Q254 DTC363EU IC161 M62363FP 2 8 8T Q406 2SK508NV K52 IC35 BD4740G 5C RESET X86 IC161 M62363FP 5 8 6 8 IC161 M62363FP 1 8 IC34 BD4732G DTMF BEEP 8TC SQIN Q32 KRC102S SBC Q251 2SC2412K PTT FINAL AMP 8C SPM MICMT SIGNAL Q34 KRC102S 8T DRIVE AMP SB B IF DEMODULATOR AF PA AFM SW CPU IC101 3062...

Page 44: ...o make measurements in the AF section connect the AC level meter AG is set so that MIC input becomes 3kHz 1 5kHz Wide Narrow DEV at 1kHz MOD D CF1 CF2 450kHz 7 IC203 TX RX Unit S IC301 5 49 95MHz 9 IC201 G1 20 1 Center Frequency W 124 0dBm N 123 5dBm W 119 5dBm N 119 0dBm W 104 7dBm N 103 7dBm W 103 9dBm N 103 4dBm W 0 75Vrms N 0 36Vrms W 0 30Vrms N 0 18Vrms W 112 3dBm N 111 5dBm W 92 1dBm N 90 7d...

Page 45: ...r a 0 64V 8Ω by the front panel AF VOL control Q406 vel meter 12dB SINAD TX RX Unit Q410 1 11 Q411 FINAL Amp Q503 2 D409 TX RX Unit S IC402 Audio Frequency Q501 D TX RX Unit VCO CF1 CF2 450kHz Q502 G IC301 D602 G ANT 5 3dBm 10dBm 4 8dBm 12 5dBm 26 5dBm 8 8dBm 60W W 85 0dBm N 84 5dBm W N 0 33Vrms W N 0 32Vrms W N 0 26Vrms W N 0 30Vrms W N 0 31Vrms W N 10mVrms W N 0 50Vrms W N 0 64Vrms 14 J1 IC161 1...

Page 46: ... 271A E SPECIFICATIONS GENERAL Frequency Range TX K M4 144 148MHz E 144 146MHz M2 M3 136 174MHz RX K E M2 M3 136 174MHz M4 144 148MHz Mode F3E FM Antenna Impedance 50Ω Usable Temperature Range 20 C 60 C 4 F 140 F Power Supply 13 8V DC 15 11 7 15 8V Grounding Method Negative ground Current Transmit max K E M2 M3 13A or less M4 8A or less Receive at 2W output 1 0A or less Frequency Stability 20 C 60...

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