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Tk-8180, Schematic diagram – Kenwood TK-8180 User Manual

Page 69

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65

SCHEMATIC DIAGRAM

TK-8180

AD

AC

AB

AA

Z

X57-699 6/9

C384

0.01u

C382

0.01u

C185

0.01u

D315

HVC131

D316

HVC131

C385

470p

R367

3.3k

C380

470p

C186

33p

C383

1000p

R365

2.2k

C374

1000p

R254

0

R255

0

R253

10k

R356

10k

R352

10

C255

10u16

C257

1u25

C370

470p

C253

0.01u

C256

0.01u

C381

470p

R251

1k

R252

4.7k

R257

15k

C258

4.7u16

D251

1SS388

R256

120k

R258

22

C371

10u6.3

R366

2.2k

R126

0

C176

470p

R172

18

C175

6p

L172

15n

R173

270

L171

15n

C181

470p

R171

270

C173

12p

R175

2.2k

C178

470p

C171

6p

1

2

3

4

S2

5

S1

6

G2

C177

470p

C182

0.01u

R174

68

L175

R176

47

C184

470p

C183

0.01u

C376

470p

R359

100

C375

27p

R358

8.2k

R360

120

C378

470p

2SC5108(Y)

Q313

R357

10k

L319

22n

C377

470p

R361

220

C379

6p

C252

470p

C251

470p

C369

470p

C360

7p

C343

10u10

C342

1000p

C364

0.5p

C355

5p

R351

4.7k

L312

1.0u

C351

0.5p(B)

L326

1.0u

C357

6p

L311

1.0u

R344

47

R345

0

D314

1SV278

C346

22p

R337

10k

D309

BB664

R341

180

C353

470p

C350

8p

L316

1.0u

D313

BB664

L317

1.0u

C365

0.3p

C362

470p

R335

0

C352

12p

R336

1k

R342

180

R343

4.7k

TC301

8p

C363

470p

C347

22p

C361

470p

D308

BB664

D311

BB664

R347

4.7k

C356

0.5p

R340

100

R339

100k

C354

4p

TC302

8p

R334

0

C368

470p

C372

22p

R349

33k

L318

22n

R350

33k

R355

56

Q310

DTC114EE

C367

1000p

C373

470p

R353

4.7k

C388

5p

C387

5p

L328

22n

R375

330

C594

470p

C325

1000p

C334

1000p

R180

820

C187

39p

C196

0.01u

R178

0

C193

0.01u

L182
100n

C198

68p

L180

68n

C201

4p

C192

0.01u

C204

0.01u

C194

0.01u

R184

10

C199

39p

L181

10u

C190

39p

L185

68n

R182

3.3k

R183

68

C188

4p

C195

470p

R181

330

C189

4p

C202

39p

C200

4p

C197

0.01u

L178

390n

L179

390n

L183

390n

L184

390n

L177

270n

R179

1k

R177

1k

R315

1k

L119

33n

C358

5p(B)

L310

1u

C359

7p(B)

1

PGND

2

GND

3

FB

4

5

6

L251

10u

L309

1u

T/R

5R

5R

R348

10k

MOD

10CL

5R

8T

C299

0.5p

CV

CV

DC-DC CONVERTER

REVERSE
VOLTAGE
PROTECTION

D315,316

VCO BUFFER
AMP

VCO
BUFFER
AMP

MODULATION
CONTROL
FOR TX VCO

TX/RX
BAND SW

TX/RX
VCO SW

D309,313

FREQUENCY
CONTROL FOR
TX/RX VCO

ME

AM1

5C

MI2

AFO

8T

AM1

CV

11CL

FREQUENCY
CONTROL FOR
TX/RX VCO

D308,311

2SK508NV(K52)

Q307

TX/RX VCO

L325

L34-4605-05

12.5n

2SC4116(GR)

Q309

TX/RX
VCO SW

2SC4617(S)

Q312

RIPPLE FILTER

2SC4116(GR)

Q308

TX/RX
VCO SW

2SK508NV(K52)

Q306

TX/RX VCO

IC251

MAX5026EUT+T

SHDN

VCC

LX

2SC4617(S)

Q251

RIPPLE

FILTER

L173

L39-1421-05

G1

D1

D2

L176

L39-1421-05

XF171

L71-0618-05

XF171

L71-0618-05

ME

MI2

AFO

L174

L39-1421-05

L314

L34-4607-05

17.5n

L315

1.0u

2SC5108(Y)

Q311

RX 1ST MIXER

IC171

SPM5001

2SC5108(Y)

Q171

IF AMP

1.02V

T:2.84V
R:2.13V

T:0V
R:2.83V

4.3V

T:3.55V
R:0V

3.86V

3.69V

R:4.88V
T:0V

R:0V
T:2.3V

4.99V

4.97V

4.35V

0.87V

0.07V

4.41V

4.96V

0.84V

3.94V

3.93V

4.50V

0.39V

TX-RX UNIT (X57-6990-10) (B/3)