Kenwood TH-K2AT, K2E, K2ET 18

TH-K2AT/K2E/K2ET

PARTS LIST

TX-RX UNIT (X57-674X-XX)

Ref. No.

Address

partsNew

Parts No.

Description

Destination

Ref. No.

Address

partsNew

Parts No.

Description

Destination

C33

C92-0002-05

CHIP-TAN

0.22UF

35WV

C136

CC73HCH1H100D

CHIP C

10PF

D

C34

C92-0714-05

TANTALUM

4.7UF

6.3WV

C137

CC73HCH1H050C

CHIP C

5.0PF

C

C35

C92-0001-05

CHIP-C

0.1UF

35WV

C138

CK73HB1H102K

CHIP C

1000PF

K

C37

CK73HB1H102K

CHIP C

1000PF

K

C141,142

CK73HB1H102K

CHIP C

1000PF

K

C38

CK73HB1C103K

CHIP C

0.010UF

K

C145

CC73HCH1H220G

CHIP C

22PF

G

C40

CK73HB1A104K

CHIP C

0.10UF

K

C147

CK73HB1H102K

CHIP C

1000PF

K

C41

C92-0507-05

CHIP-TAN

4.7UF

6.3WV

C148

CC73HCH1H220G

CHIP C

22PF

G

C42

CK73HB1H102K

CHIP C

1000PF

K

C152,153

CK73HB1H102K

CHIP C

1000PF

K

C43

CK73HB1C103K

CHIP C

0.010UF

K

C158

CC73HCH1H220G

CHIP C

22PF

G

C44-46

CC73HCH1H101J

CHIP C

100PF

J

C159

CC73HCH1H020B

CHIP C

2.0PF

B

C50

CC73HCH1H220J

CHIP C

22PF

J

C160

CC73HCH1H270G

CHIP C

27PF

G

C51

CC73GCH1H220J

CHIP C

22PF

J

C161

CK73HB1H102K

CHIP C

1000PF

K

C52

CC73HCH1H100D

CHIP C

10PF

D

C162

∗

CC73HCH1H470G

CHIP C

47PF

G

C54

CK73HB1H102K

CHIP C

1000PF

K

C163

CK73HB1H102K

CHIP C

1000PF

K

C55

CK73HB1C103K

CHIP C

0.010UF

K

C166

CK73HB1C103K

CHIP C

0.010UF

K

C56

CK73HB1H102K

CHIP C

1000PF

K

C167,168

CK73HB1A104K

CHIP C

0.10UF

K

C57

CC73HCH1H100D

CHIP C

10PF

D

C169,170

CK73HB1A683K

CHIP C

0.068UF

K

C61

CK73HB1H102K

CHIP C

1000PF

K

C171

CK73HB1H102K

CHIP C

1000PF

K

C64

CK73HB1H102K

CHIP C

1000PF

K

C172

CK73HB1H182K

CHIP C

1800PF

K

C65

CC73HCH1H180J

CHIP C

18PF

J

C173,174

∗

CC73HCH1H181J

CHIP C

180PF

J

C66

CK73GB0J105K

CHIP C

1.0UF

K

C175

CC73HCH1H220J

CHIP C

22PF

J

C67

CK73HB1H102K

CHIP C

1000PF

K

C176

CK73HB1A104K

CHIP C

0.10UF

K

C68

CC73HCH1H180J

CHIP C

18PF

J

C177

C92-0712-05

CHIP-TAN

22UF

6.3WV

C69

CC73HCH1H040C

CHIP C

4.0PF

C

C178

CK73HB1C103K

CHIP C

0.010UF

K

C70

CK73GB0J105K

CHIP C

1.0UF

K

C179

CK73HB1A104K

CHIP C

0.10UF

K

C71

CK73HB1H102K

CHIP C

1000PF

K

C180

CC73HCH1H121J

CHIP C

120PF

J

C72

CK73GB1C104K

CHIP C

0.10UF

K

C182,183

CK73HB1A104K

CHIP C

0.10UF

K

C73

CK73HB1H102K

CHIP C

1000PF

K

C186

CC73HCH1H240J

CHIP C

24PF

J

C74

CC73HCH1H330J

CHIP C

33PF

J

C187

CC73HCH1H020C

CHIP C

2.0PF

C

C75

CK73HB1H102K

CHIP C

1000PF

K

C188

CC73HCH1H240J

CHIP C

24PF

J

C76

CC73GCH1H390J

CHIP C

39PF

J

C189

CK73HB1H102K

CHIP C

1000PF

K

C78

CK73HB1H102K

CHIP C

1000PF

K

C190-192

CK73HB1C103K

CHIP C

0.010UF

K

C82

CK73HB1H102K

CHIP C

1000PF

K

C193

C92-0507-05

CHIP-TAN

4.7UF

6.3WV

C83

CK73HB1C103K

CHIP C

0.010UF

K

C194

CK73HB1A104K

CHIP C

0.10UF

K

C84

CK73HB1A104K

CHIP C

0.10UF

K

C195

C92-0628-05

CHIP-TAN

10UF

10WV

C85

∗

C93-0766-05

CERAMIC C

56PF

J

C196,197

CK73HB1C682K

CHIP C

6800PF

K

C88

CC73GCH1H560J

CHIP C

56PF

J

C198

CK73EF1C105Z

CHIP C

1.0UF

Z

C89

CK73GB1H102K

CHIP C

1000PF

K

C201

CK73HB1H122K

CHIP C

1200PF

K

C90-92

CK73HB1H102K

CHIP C

1000PF

K

C202

CK73HB1H271K

CHIP C

270PF

K

C93

CC73HCH1H080D

CHIP C

8.0PF

D

C203

CC73HCH1H121J

CHIP C

120PF

J

C94

CK73GB1H102K

CHIP C

1000PF

K

C204

CK73HB1A333K

CHIP C

0.033UF

K

C95-97

CC73GCH1H120G

CHIP C

12PF

G

C205

CK73HB1A473K

CHIP C

0.047UF

K

C98

CC73GCH1H080B

CHIP C

8.0PF

B

C206

CK73HB1C153K

CHIP C

0.015UF

K

C99

CC73GCH1H130G

CHIP C

13PF

G

C207

CK73HB1C103K

CHIP C

0.010UF

K

C100

CC73GCH1H070B

CHIP C

7.0PF

B

C208

CC73HCH1H820J

CHIP C

82PF

J

C101

CC73GCH1H240G

CHIP C

24PF

G

C209

CK73HB1H102K

CHIP C

1000PF

K

C105-107

CK73HB1H102K

CHIP C

1000PF

K

C210

CK73HB1C103K

CHIP C

0.010UF

K

C108

CC73HCH1H101J

CHIP C

100PF

J

C211

CK73HB1H222K

CHIP C

2200PF

K

C109-115

CK73HB1H102K

CHIP C

1000PF

K

C212

CK73HB1C123K

CHIP C

0.012UF

K

C116

C92-0544-05

CHIP-TAN

10UF

4WV

C213

C92-0507-05

CHIP-TAN

4.7UF

6.3WV

C117,118

CK73HB1H102K

CHIP C

1000PF

K

C218

CK73HB1H102K

CHIP C

1000PF

K

C124

CK73HF1C104Z

CERAMIC C

0.1UF

Z

C219

CK73HB1A473K

CHIP C

0.047UF

K

C125

CC73HCH1H1R5C

CHIP C

1.5PF

C

C220

CK73HB1E472K

CHIP C

4700PF

K

C126

CC73HCH1H100D

CHIP C

10PF

D

C221,222

CK73HB1C103K

CHIP C

0.010UF

K

C128

CK73HB1C103K

CHIP C

0.010UF

K

C223

CK73HB1H102K

CHIP C

1000PF

K

C129

CC73HCH1H110J

CHIP C

11PF

J

C224

CK73HB1A104K

CHIP C

0.10UF

K

C130

CK73HB1H102K

CHIP C

1000PF

K

C225

CK73GB0J105K

CHIP C

1.0UF

K

C131-133

CK73HB1C103K

CHIP C

0.010UF

K

C226

CK73HB1A104K

CHIP C

0.10UF

K

C134

CK73HB1H102K

CHIP C

1000PF

K

C227

C92-0587-05

CHIP-TAN

2.2UF

4WV

C135

CC73HCH1H120J

CHIP C

12PF

J

C228,229

CK73HB1A104K

CHIP C

0.10UF

K

18

E : TH-K2E

K : TH-K2AT

M : TH-K2AT

E3 : TH-K2ET

K2 : TH-K2AT

M2 : TH-K2AT

Contents

PC BOARD TX-RXUNIT (X57-674X-XX)(A/3) TX-RXUNIT (X57-674X-XX)(B/3),(C/3) PB-43N (Ni-MHBATTERY PACK) PG-4Y(PROGRAMMING INTERFACE CABLE) ■Numeric key PC board (TX-RXunit B/3) ■ PTT PC board (TX-RXunit C/3) ■TX-RXPC board (TX-RXunit A/3) Page 1. Gluing to the key top (MIC element section) Fig 2.Bending the LCD hardware fixture (J21-8456-03)tabs 3. PTT PCB (TX-RXunit C/3) installation procedure 4.Packing (G53-1572-02)TX/BUSY lamp installation procedure 6.Cautions for installing the chassis on the case assembly 5.Packing (G53-1572-02)bottom installation procedure 7.Cautions for installing the key top on the case assembly Table 1 Basic configuration ■Front End ■First Mixer Table 2 MCF (L71-0619-05)characteristics (TX-RXunit XF1) Fig. 2 Receiver section configuration ■IF Circuit ■Squelch and Mute Circuit ■S Meter Circuit Fig. 3 IF, Squelch, Mute and S meter circuit ■AF Amplifier ■Microphone Amplifier Circuit Fig. 5 Microphone amplifier circuit ■Modulation Circuit ■Drive and Final Circuit ■Transmission/Reception Switching Circuit ■Temperature Protection Circuit ■PLL Circuit ■VCO Circuit Fig. 8 PLL and VCO circuit ■Unlock Detection Circuit ■Charging Circuit ■Power Supply Switching Circuit ■Battery Type Recognition Circuit Fig. 10 Charging and Power supply switching circuit ■Reset and Backup Circuit ■Voltage Detection Circuit ■Battery Save Circuit ■LED Drive Circuit Fig. 13 LED drive circuit Fig. 12 Battery save circuit ■Key and Encoder Input Circuit 16 key (K, K2, M, M2 and E3 types) 4 key (E type) Fig. 14 Key and Encoder input circuit ■CTCSS/DCS ■DTMF ■VOX ■ Weather Alert (K and K2 types only) Fig. 15 CTCSS/DCS, DTMF, VOX, Weather alert ■Pin function TX-RXUNIT (X57-674X-XX) Page TH-K2AT/K2E/K2ET (Y50-580X-XX) TX-RXUNIT (X57-674X-XX) TH-K2AT/K2E/K2ET TX-RXUNIT (X54-674X-XX) 0-11 :K, K2 0-21 :M, M2 2-71 :E Page Page Page Page Page Page Page Page Page Operation B. Battery terminal reference voltage (7.5 V [Battery terminal]) D. S-meter(Two segments in S-meterlight, all segments in S-meterlight) E.RX BPF (Lower limit frequency, center frequency, upper limit frequency) Page Page Page L. DCS modulation balance O. VOX sensitivity (Level 1, level 9) Item Condition Adjustment Unit Terminal Note: If the Note: In the Page Note: Do not Page Page Page Terminal Unit Adjustment points TX-RXunit (A/3) Component side view TH-K2AT/K2E/K2ET PC BOARD TH-K2AT/K2E/K2ET Page PC BOARD TH-K2AT/K2E/K2ET 1 TH-K2AT/K2E/K2ET PC BOARD TH Page PC BOARD TH-K2AT/K2E/K2ET TH-K2AT/K2E/K2ET SCHEMATIC DIAGRAM Page Page Page Page TH-K2AT/K2E/K2ET SCHEMATIC DIAGRAM Transmitter Section Section Receiver Page Page Photo is K type