Kenwood TK-260G, TK-270G service manual VR1

Page 29

TK-260G/270G

PARTS LIST

TX-RX UNIT (X57-5870-XX)

Ref. No.

Address partsNew

Parts No.

Description

Destination

R232

 

RK73GB1J152J

CHIP R

1.5K

J 1/16W

 

R233

 

R92-1252-05

CHIP R

0 OHM

 

 

R234

 

RK73GB1J124J

CHIP R

120K

J 1/16W

 

R235

 

RK73GB1J334J

CHIP R

330K

J 1/16W

 

R237

 

R92-1252-05

CHIP R

0 OHM

 

 

R239

 

RK73GB1J153J

CHIP R

15K

J 1/16W

 

R240

 

RK73GB1J223J

CHIP R

22K

J 1/16W

 

R241

 

RK73GB1J334J

CHIP R

330K

J 1/16W

 

R242

 

R92-1252-05

CHIP R

0 OHM

 

 

R244

 

RK73GB1J561J

CHIP R

560

J 1/16W

 

R249

 

R92-1252-05

CHIP R

0 OHM

 

 

R250

 

RK73GB1J472J

CHIP R

4.7K

J 1/16W

 

R252,253

 

R92-1252-05

CHIP R

0 OHM

 

 

R256-258

 

R92-1252-05

CHIP R

0 OHM

 

 

R259

 

RK73GB1J473J

CHIP R

47K

J 1/16W

 

R260,261

 

RK73GB1J224J

CHIP R

220K

J 1/16W

 

R301

 

R92-0679-05

CHIP R

0 OHM

 

 

R302

 

R92-1252-05

CHIP R

0 OHM

 

 

R303

 

RK73GB1J101J

CHIP R

100

J 1/16W

 

R304

 

RK73GB1J472J

CHIP R

4.7K

J 1/16W

 

R305

 

R92-1252-05

CHIP R

0 OHM

 

 

R306

 

RK73GB1J222J

CHIP R

2.2K

J 1/16W

 

R308

 

R92-0670-05

CHIP R

0 OHM

 

 

R311

 

RK73GB1J221J

CHIP R

220

J 1/16W

 

R312-314

 

RK73GB1J104J

CHIP R

100K

J 1/16W

 

R316

 

RK73GB1J470J

CHIP R

47

J 1/16W

 

R318

 

R92-1252-05

CHIP R

0 OHM

 

 

R319

 

RK73GB1J102J

CHIP R

1.0K

J 1/16W

 

VR1

 

R12-7491-05

TRIMMING POT.(68K/8)

 

 

S401

 

S70-0457-05

TACT SWITCH

 

 

 

S402,403

 

S70-0424-05

TACT SWITCH

 

 

 

MIC1

 

T91-0579-05

MIC ELEMENT

 

 

 

D1

 

MA2S111

DIODE

 

 

 

D2

*

MA2SV05

VARIABLE CAPACITANCE DIODE

 

D3

 

HVU131

DIODE

 

 

 

D4

*

MA2SV05

VARIABLE CAPACITANCE DIODE

 

D5

 

HSC277

DIODE

 

 

 

D6

 

MA360

VARIABLE CAPACITANCE DIODE

 

D7

 

HSC277

DIODE

 

 

 

D8

 

MA8062

ZENER DIODE

 

 

 

D9

 

MA2S304

VARIABLE CAPACITANCE DIODE

 

D10

 

HSC277

DIODE

 

 

 

D11

 

MA2S304

VARIABLE CAPACITANCE DIODE

 

D12

 

MA2S111

DIODE

 

 

 

D13 ,14

 

DAN235E

DIODE

 

 

 

D15

 

HSC277

DIODE

 

 

 

D17

 

MA2S111

DIODE

 

 

K

D19

 

MA2S111

DIODE

 

 

260G

D21

 

1SS373

DIODE

 

 

 

D22

 

1SR154-400

DIODE

 

 

 

D23

 

RB706F-40

DIODE

 

 

 

D302,303

 

HVC350B

VARIABLE CAPACITANCE DIODE

 

Ref. No.

Address partsNew

Parts No.

Description

Destination

IC1

 

PF0314-03

IC(RF POWER AMP)

 

IC2

 

MB15A02

IC

 

IC3

 

NJM2904V

IC(APC)

 

IC4

 

TA31136FN

IC(FM IF DETECTOR)

 

IC5 ,6

 

BU4094BCFV

IC(8bit SHIFT/STORE REGISTER)

 

IC7

 

S-81350HG-KD

IC(VOLTAGE REGULATOR)

 

IC8

 

PST9140NR

IC(RESET SW)

 

IC9

 

RN5VL45C

IC(REGULATOR)

 

IC10

 

AT2408N10SI2.5

IC(8kbit SERIAL EEPROM)

 

IC11

 

TA7368F

IC(AF POWER AMP)

 

IC12

 

AT29C020-90TI

IC

 

IC13

*

30622M4102GP

MPU

 

IC14

 

TC35453F

IC(AUDIO PROCESSOR)

 

IC15

 

TA75W01FU

IC(OP AMP X2)

 

IC16

 

TC75W51FU

IC(OP AMP X2)

 

IC17

 

X9C103SI

IC(TERMINAL VOLTAGE)

 

IC18

 

LC73872M

IC(DTMF RECEIVER)

 

IC19

 

TA75W01FU

IC(OP AMP X2)

 

IC301

 

UPB1509GV

IC

 

Q1

 

2SC5108(Y)

TRANSISTOR

 

Q2

 

2SC4226(R24)

TRANSISTOR

 

Q3 ,4

 

2SC5108(Y)

TRANSISTOR

 

Q6

 

2SC4988

TRANSISTOR

 

Q7

 

2SJ243

FET

 

Q8

 

UMC4

TRANSISTOR

 

Q9

 

DTC144EE

DIGITAL TRANSISTOR

 

Q10

 

2SK508NV(K52)

FET

 

Q11

 

2SC4617(S)

TRANSISTOR

 

Q12

 

2SC4649(N,P)

TRANSISTOR

 

Q13 ,14

 

DTA144EE

DIGITAL TRANSISTOR

 

Q15

 

DTC114EE

DIGITAL TRANSISTOR

 

Q16

 

DTA114YE

DIGITAL TRANSISTOR

 

Q17

 

DTC144EE

DIGITAL TRANSISTOR

 

Q18

 

FP210

TRANSISTOR

 

Q19

*

3SK166A

FET

 

Q20 ,21

 

UMG3N

TRANSISTOR

 

Q22

 

2SC4619

TRANSISTOR

 

Q23

 

UMC4

TRANSISTOR

 

Q24 ,25

 

DTC114EE

DIGITAL TRANSISTOR

 

Q26

 

DTA114EE

DIGITAL TRANSISTOR

 

Q27

 

UPA572T

FET

 

Q28

 

DTA114YE

DIGITAL TRANSISTOR

 

Q30

 

2SK1588

FET

 

Q31

 

2SC4619

TRANSISTOR

 

Q32

 

2SA1362(GR)

TRANSISTOR

 

Q33 ,34

 

DTC144EE

DIGITAL TRANSISTOR

 

Q35

 

UPA672T

FET

 

Q36

 

2SK1824

FET

 

Q301

 

2SK1215(E)

FET

 

D305

HVC350B

VARIABLE CAPACITANCE DIODE

260G : TK-260G (K),(M)

M : TK-260G(M),TK-270G(M)

270G : TK-270G (K),(M)

29

K : TK-260G(K),TK-270G(K)

Image 29
Contents TK-260G/270G ContentsGeneral / System SET-UP TK-260G/270GOperation Features Operating Features3 keys Programmable keysDtmf keypad SP/MIC jacksScan Operating TK-270G only Display TK-270G onlyIcon Description Scan typesDetails of Features Option Signalling DTMF/2 tone How to Enter Each Mode Operating Features / RealignmentFor the panel Test Mode TK-270G only Audible user feedback tonesFirmware Programming Mode PC ModeRealignment ChecksumFunction Clone ModeSelf programming mode setting Self Programming Mode TK-270G onlyChannel Setting Mode Flow ChartTone DtmfDelete ADDFunction Setting Mode Function Setting ModeTOT YES/NOYES Cttyes CttnoMemory Reset Mode Separating the chassis from the unit TK-260G Disassembly for RepairSeparating the case assembly from the chassis Receiver Frequency configurationCircuit Description PLL frequency synthesizer Encode signaling Power supplyTransmitter System Microphone amplifierOptional Board Terminal Control CircuitLCD Driver LC75823W Display Unit IC501 TK-270G only Circuit DESCRIPTION/SEMICONDUCTOR DataUPB1509GV IC301 Microprocesser 30622M4102GP TX-RX Unit IC13 Semiconductor DataShift register 1BU4094BCFVIC5 Shift register 2BU4094BCFVIC6TX-RX Unit Description of ComponentsDisplay Unit X54-3250-10 TK-270G Only TK-260G/270G Parts ListTX-RX Unit Ceramic Trimmer CAP10P CN1 Coil R92 RK73GB1J100J VR1 Exploded View TK-260G Exploded View TK-270G Packing TK-260G/270GRepair Jig Chassis AdjustmentTest Equipment Required for Alignment Repair Jig Extention Flat cable part No E37-0851-05 Test Mode TK-270G onlyTest mode operating features Tuning mode LCD display Tuning mode Wide/Narrow indicatorPanel Tuning Mode Transmitter Section Common SectionAF Vtvm Hpfoff Ptton Dtmf BPF-WAVE Foil Side View Adjustment points TX-RX unit X57-587 Component side viewDisplay Unit X54-3250-10 Foil Side View PC Board View TK-260G/270GDisplay Unit X54-3250-10 Component Side View PC Board View DTA114EE TK-260G/270G PC Board View TK-260G TK-270GSCHEMATIC Diagram Block Diagram KNB-15A Level DiagramKNB-14 Options KMC-17 Speaker microphone KMC-17 Parts ListKMC-21 Speaker microphone KMC-21 Parts List General Specification