SERVICE MANUAL SUPPLEMENT - radiomanual.inforadiomanual.info/.../Kenwood_TK-790H_B_serv_supplement_2005.pdfSUPPLEMENT SERVICE MANUAL Cabinet (Upper) ... This service manual applies

© 2005-2 PRINTED IN JAPAN

B51-8718-00 (N) PDF

VHF FM TRANSCEIVER

TK-790H(B)

SUPPLEMENT

SERVICE MANUAL

Cabinet (Upper)(A01-2163-11)

Cabinet (Lower)(A01-2164-11)

This service manual applies to products with 60400001 or

subsequent serial numbers.

PARTS LIST ............................................................................................... 2

PC BOARD

FINAL UNIT (X45-3560-10) ................................................................... 4

SCHEMATIC DIAGRAM

FINAL UNIT (X45-3560-10) ................................................................... 8

CONTENTS

TK-790H(B)

2

PARTS LIST✽ New Parts. indicates safety critical components.

Parts without Parts No. are not supplied.

Les articles non mentionnes dans le Parts No. ne sont pas fournis.

Teile ohne Parts No. werden nicht geliefert.

L : Scandinavia K : USA P : Canada

Y : PX (Far East, Hawaii) T : England E : Europe

Y : AAFES (Europe) X : Australia M : Other Areas

Ref. No. Address Parts No. Description Desti-nation

Newparts


Newparts

C1-6 CK73FB1H102K CHIP C 1000PF K

C8 CK73FB1E104K CHIP C 0.10UF K

C11 CK73FB1H102K CHIP C 1000PF K

C13 CM73F2H180J CHIP C 18PF J



C18 C92-0726-05 CHIP-ELE 47UF 25WV



C22,23 CM73F2H681J CHIP C 680PF J


C28-31 CM73F2H271J CHIP C 270PF J

C32-35 CM73F2H221J CHIP C 220PF J


C38 CK73FB1H103K CHIP C 0.010UF K





C44 C90-5299-05 ELECTRO 470UF 25WV

C45 CK73FB1H103K CHIP C 0.010UF K





C50 C90-5299-05 ELECTRO 470UF 25WV



C53 CC73FCH1H180J CHIP C 18PF J



C60 CC73FCH1H020C CHIP C 2.0PF C



C64 CM73F2H100D CHIP C 10PF D

C65 C92-0729-05 CHIP-ELE 330UF 25WV

C66 CM73F2H360F CHIP C 36PF F

C67 C92-0729-05 CHIP-ELE 330UF 25WV

C68,69 CK73FB1H102K CHIP C 1000PF K

C70 CM73F2H360F CHIP C 36PF F

C71 CM73F2H080D CHIP C 8.0PF D


C73,74 CK73FB1H102K CHIP C 1000PF K

C83 C92-0606-05 CHIP-TAN 4.7UF 10WV

C84 CK73GB1C104K CHIP C 0.10UF K

C85 CK73GB1E103K CHIP C 0.010UF K

C86 CK73GB1H471K CHIP C 470PF K


C88 CK73GB1C104K CHIP C 0.10UF K

C89 C92-0003-05 CHIP-TAN 0.47UF 25WV


C91 C90-4016-05 ELECTRO 47UF 16WV



C95 CK73GB1E103K CHIP C 0.010UF K



CN1,2 E04-0154-05 PIN SOCKET

CN3,4 E23-1116-05 RELAY TERMINAL

W1,2 E37-0783-05 PROCESSED LEAD WIRE

W4 E37-0706-05 LEAD WIRE WITH CONNECTOR

W5 E37-0701-05 LEAD WIRE WITH CONNECTOR

L1 L34-1039-05 AIR-CORE COIL

L2 L39-0421-04 COIL

L3,4 L34-1231-15 AIR-CORE COIL



L7,8 L34-1232-15 AIR-CORE COIL



L11 L40-1885-34 SMALL FIXED INDUCTOR (180NH)

R1 RK73FB2A330J CHIP R 33 J 1/10W

R2 RK73FB2A473J CHIP R 47K J 1/10W



R6 RK73FB2A122J CHIP R 1.2K J 1/10W


R8 RD14DB3A3R3J SMALL-RD 3.3 J 1W

R9,10 RS14DB3D2R2J FL-PROOF RS 2.2 J 2W

R13 RD14DB3A3R3J SMALL-RD 3.3 J 1W

R16,17 R92-1221-05 CHIP R 82 J 1/4W







R25 R92-1061-05 JUMPER REST 0 OHM

R30 RK73GB1J102J CHIP R 1.0K J 1/16W


R33 RK73GB1J103J CHIP R 10K J 1/16W




R37,38 RK73GB1J103J CHIP R 10K J 1/16W






R44 R92-1252-05 CHIP R 0 OHM J 1/16W






VR1 R12-6429-05 TRIMMING POT. (100K)

K1 S51-1437-05 RELAY

FINAL UNIT (X45-3560-10)


TK-790H(B)

3

PARTS LIST

D1,2 HSM88AS DIODE

D4 22ZR-10D SURGE ABSORBER

D5 1SS193 DIODE

D6 02CZ10(X,Y) ZENER DIODE

D7 SG-5L(R) DIODE

D10 02DZ5.6(X,Y) ZENER DIODE

D11,12 1SS355 DIODE

IC1 RA30H1317M-31 MOS-IC

IC2,3 OP291GS BI-POLAR IC

Q1,2 2SC2712(Y) TRANSISTOR

Q6,7 2SC2782 TRANSISTOR

Q8 FMC2 DIGITAL TRANSISTOR

Q9 2SD1624(S) TRANSISTOR

Q20 2SC4116(Y) TRANSISTOR

TH1 PTH9M04BC471TS THERMISTOR

- 212-0702-05 INSULATING TUBE


Newparts


Newparts


4

JIHGFEDCBA

1

2

3

4

5

6

7

8

9

10

11

12

13

14

C4

4

+

C5

0

C42

C48

C45

L3

R1

3

R8

C3

3C

32

C2

8C

30

C3

1C

29

L4C

35

C3

4

C3

C8 C1

234

C18

IC1

C15C13

+

TH1

CN4

GND

R9

C2

2C

23

R1

0

Q6B C

E E

E E

Q7B C

E E

E EC25

C24

C21L2

C74

W4

E1 3

+B

+B

C67 +

C65 +

C16

C4

7 L1

C19

C52

D7

C7

3D4

CN3

+B

W2

W2

W1

W1

J72-0568-12

C37

C38

C39

+

TK-790H(B) PC BOARD

FINAL UNIT (X45-3560-10) Component side view (J72-0568-12)

5

J K L M N O P Q R S

1

2

3

4

5

6

7

8

9

10

11

12

13

14

C8

4

D1

0

C8

3

R2

2

R2

0

C6

3

R1

9

R1

8

D6

C4

4

C8

9C

91

DB

1 5

E 8R

8T

PC

C8

5

C8

6

R3

4

R3

5

R3

2

C8

7

C9

0

C9

4

C9

8

R3

6

R3

9 R4

3R

45

R4

6R

38

C2

IC2

VR

1

AP

C

Q2

1 458

R30+

+

+

D11

R33

Q20 C88

C1 C4 C6

W5 R4

R6

R5

R7

C92

C5

R2

Q1R49

C95

R44

D12 R37 C96

R47 R48

R42

R41

R40

IC3

1

45

8

CN2

RA

C64

L7

C66

L8

C70

L9

L71

L10

C72

R25

C5

1L

6 C5

3

D1

R16R24

C58

C49

C60

D2

C4

1C

40

C55

R17L11

C61

D5

C68

K1

CN1

DO

R21

R1

Q81

34

5

C69

Q9

E

C

B

L5

C43

C46

+

C5

0

C42

R1

3

C3

C8 C11

12

C37

+

FINAL UNIT (X45-3560-10) Component side view (J72-0568-12)

PC BOARD TK-790H(B)

Component side

Foil side

Layer 1

Layer 2

Ref. No. Address

IC1 13H

IC2 11O

IC3 10P

Q1 11Q

Q2 12P

Q6 5H

Q7 8H

Q8 11L

Q9 9L

Q20 11N

D1 4O

D2 7M

D4 4B

D5 10N

D6 10K

D7 3B

D10 12M

D11 11N

D12 11O

J K L M N O P Q R SIHGFEDCBA

1

2

3

4

5

6

7

8

9

10

11

12

13

14

1

2

3

4

5

6

7

8

9

10

11

12

13

14

C8

4

D1

0

C8

3

R2

2

R2

0

C6

3

R1

9

R1

8

D6

C4

4

C8

9C

91

DB

1 5

E 8R

8T

PC

C8

5

C8

6

R3

4

R3

5

R3

2

C8

7

C9

0

C9

4

C9

8

R3

6

R3

9 R4

3R

45

R4

6R

38

C2

IC2

VR

1

AP

C

Q2

1 458

R30+

+

+

D11

R33

Q20 C88

C1 C4 C6

W5 R4

R6

R5

R7

C92

C5

R2

Q1R49

C95

R44

D12 R37 C96

R47 R48

R42

R41

R40

IC3

1

45

8

CN2

RA

C64

L7

C66

L8

C70

L9

L71

L10

C72

R25

C5

1L6 C

53

D1

R16R24

C58

C49

C60

D2

C4

1C

40

C55

R17L11

C61

D5

C68

K1

CN1

DO

R21

R1

Q81

34

5

C69

Q9

E

C

B

L5

C43

C46

+

C5

0

C42

C48

C45

L3

R1

3

R8

C3

3C

32

C2

8C

30

C3

1C

29

L4C

35

C3

4

C3

C8 C11

1234

C18

IC1

C15C13

+

TH1

CN4

GND

R9

C2

2C

23

R1

0

Q6B C

E E

E E

Q7B C

E E

E EC25

C24

C21L2

C74

W4

E1 3

+B

+B

C67 +

C65 +

C16

C4

7 L1

C19

C52

D7

C7

3D4

CN3

+B

W2

W2

W1

W1

J72-0568-12

C37

C38

C39

+

TK-790H(B) PC BOARD

FINAL UNIT (X45-3560-10) Component side view (J72-0568-12) FINAL UNIT (X45-3560-10) Component side view (J72-0568-12)

PC BOARD TK-790H(B)

Component side

Foil side

Layer 1

Layer 2

Ref. No. Address

IC1 13H

IC2 11O

IC3 10P

Q1 11Q

Q2 12P

Q6 5H

Q7 8H

Q8 11L

Q9 9L

Q20 11N

D1 4O

D2 7M

D4 4B

D5 10N

D6 10K

D7 3B

D10 12M

D11 11N

D12 11O

6

JIHGFEDCBA

1

2

3

4

5

6

7

8

9

10

11

12

13

14

TK-790H(B) PC BOARD

FINAL UNIT (X45-3560-10) Foil side view (J72-0568-12)

J72-0568-12

7

J K L M N O P Q R S

1

2

3

4

5

6

7

8

9

10

11

12

13

14

FINAL UNIT (X45-3560-10) Foil side view (J72-0568-12)

PC BOARD TK-790H(B)

Component side

Foil side

Layer 1

Layer 2

J K L M N O P Q R SIHGFEDCBA

1

2

3

4

5

6

7

8

9

10

11

12

13

14

1

2

3

4

5

6

7

8

9

10

11

12

13

14

TK-790H(B) PC BOARD

FINAL UNIT (X45-3560-10) Foil side view (J72-0568-12) FINAL UNIT (X45-3560-10) Foil side view (J72-0568-12)

PC BOARD TK-790H(B)

Component side

Foil side

Layer 1

Layer 2J72-0568-12

TK-790H(B) SCHEMATIC DIAGRAM

8

7

6

5

4

3

2

1

A B C D E

-t

C22

680p

R20

270

C28

270p

R4

10k

C1

847u25

L4

R1

33

C5

0.0

01u

C13

18p

R49

150k

C29

270p

R5

470

C8

0.1

u

R6

1.2

k

L3

C30

270p

C34

220p

C23

C35

220p

C31

270p

C94

1000p

R34

1k

W5

12345

R22

270

R30

1k

C40

680p

1

2

3

4 5

6

7

8

1

RF

_IN

2 3 4

RF

_oU

T

C41

680p

R35

1.8k

CN1

C21

VR1100k

R21

33

C15

0.0

01u

C3

0.0

01u

R32

1k

C32

220p

R2

47k

R36

100k

C1

10.0

01u

C33

220p

R7

4.7

k

L1 L2

C16

47p

C19

C24

200p

R8

3.3

R10

2.2C25

200p

R9

2.2

2SC2782Q6

2SC2782Q7

R13

3.3

C1

0.0

01

u

C6

0.0

01

u

C2

0.0

01

u

C4

0.0

01

u

TH

1P

TH

9M

04B

C471T

S

DO

+20dBm

8R

CN201

CN203

1

5

B

FINAL UNIT (X45-3560-10) : TK-790H(B)K

8T

GAT

E B

IAS

DR

AIN

BIA

S

IC1RA30H1317M-31

TX DRIVE AMP

Q6,7

FINAL AMP

2SC4116(Y)Q20

RIPPLE FILTER

D11

1SS355

CURRENTSTEERING

IC2

OP291GS

DC AMP

C89

0.4

7u25

2SC2712(Y)Q2

DC SW

2SC2712(Y)Q1

DC SW

PROTECT OF VOLTAGE

D10

E

PC

8T

8R

DB

DO

TX

-RX

UN

ITX

57-5

610

-12(A

/3)

680p

180p

150p

C8

5

0.0

1u

C8

6

470

p

C8

4

0.1

u

D1

0

02D

Z5.6

(X,Y

)

C8

3

4.7

u10

TX

-RX

UN

ITX

57-5

610-1

2(A

/3)

C88

0.1

u

C87

1000p

R33

10k

C92

1000p

C91

47u16

C90

1000p

oUTA +V

-INA oUTB

+INA -INB

-V +INB

0V(2.7V)

0V(2.0V)

0V(7.94V)

X45-356 1/2

SCHEMATIC DIAGRAM TK-790H(B)

9

7

6

5

4

3

2

1

JIHGF

Note : The components marked with a dot (•) are parts of layer 1.

C95

0.0

1u

C55

0.0

01u

W1

K1S51-1437-05

C66

36p

C96

1000p

C50

470u25

R38

10k

C72

18p

C6

8

0.0

01u

R44

0

C63

0.0

01u

CN3

D12

1SS355

R43

27k

C74

0.0

01u

C69

0.0

01u

D2HSM88AS

C52

0.0

01u

R48

2.7

kC

58

0.0

01u

C37

0.0

01u

C39

0.1

u

R45

10k

L9

R37

10k

C42

0.0

01u

R46

2.7

k

C44

470

u25

R18

1.2k

C64

10p

R25

0

CN2

R19

10k

L7

C98

1000p

D1HSM88AS

R39

27k

L8

R41

15k

R47

10k

C38

0.0

1u

Q8FMC2

C70

36p

W4

1

2

3

L1

0

CN4

C51

18p

C73

0.0

01u

C47

0.0

01u

C45

0.0

1u

C48

0.1

u

C43

62p

W2

R24

560

1oU

TA

2-I

NA

3+

INA

4-V

5678

R40

18k

C46

62p

L5 L6

C49

47p

C53

18p

R17

82

L11

180n

C60

2p

R16

82

C61

0.0

01u

C71

8p

CN501C

ON

TR

OL U

NIT

X57-5

610-1

2(B

/3)

COMBINER

B

1

3

+B

E

+B

REFLECTEDWAVERECTIFICATION

+B

FORWARDWAVERECTIFICATION

E

ANT

CN104RA

8R

VOLTAGEREFERENCE

DC 13.4V

8T

+IN

B

-IN

B

oU

TB

+V

IC3OP291GS

DC AMP

D4

SURGEABSORPTION

D7

PROTECT OF REVERSECONNECTION

D602CZ10(X,Y)

SURGE ABSORPTION

TX/RX SW 2SD1624(S)Q9

TX/RX SW

D51SS193

D7

SG

-5L(R

)

C67

330u25

C65

330u25

D4

22Z

R-1

0D

R42

10k

TX

-RX

UN

ITX

57-5

610-1

2(A

/3)

RA

13.4V(11.9V)

9.3V(0V)

0V(1.3V)

0V(0.2V)

7.92V(0V)

+50.41dBm


X45-356 2/2

-t

C2

2

68

0p

C9

5

0.0

1u

C55

0.0

01

u

R20

27

0

W1C

28

27

0p

K1S51-1437-05

C6

63

6p

C9

6

10

00

p

R4

10k

C5

04

70

u2

5

C1

84

7u

25

R38

10k

C7

21

8p

L4

C6

8

0.0

01

u

R44

0

C6

3

0.0

01

u

CN3

R1

33

C5

0.0

01

u

C1

3

18

p

D12

1SS355

R4

9

15

0k

C2

9

27

0p

R43

27k

C7

4

0.0

01

u

C6

9

0.0

01

u

R5

470

C8

0.1

u

D2HSM88AS

C5

20

.00

1u

R4

8

2.7

kC

58

0.0

01

u

C3

70

.00

1u

R6

1.2

k

L3

C3

0

27

0p

C3

4

22

0p

C2

3

C3

90

.1u

R4

5

10

k

L9

R37

10k

C4

20

.00

1u

R4

6

2.7

k

C3

5

22

0p

C4

44

70

u2

5

C3

1

27

0p

C9

4

10

00

p

R3

4

1k

W5

12345

R18

1.2k

C6

41

0p

R25

0

CN2

R1

9

10

k

L7R

22

27

0

C98

1000p

R30

1kC

40

68

0p

D1HSM88AS

R39

27k

1

2

3

4 5

6

7

8

1

RF

_IN

2 3 4

RF

_o

UT

L8

C41

68

0p

R35

1.8k

R41

15k

R4

7

10

k

C3

80

.01

u

Q8FMC2

C7

03

6p

CN1

W4

1

2

3

C2

1

VR1100k

L1

0

R21

33

C1

50

.00

1u

CN4

C5

11

8p

C3

0.0

01

u

R32

1k

C32

22

0p

C7

3

0.0

01

u

R2

47

k

C4

70

.00

1u

C4

50

.01

u

C4

80

.1u

R3

6

10

0k

C4

36

2p

C1

10

.00

1u

C3

3

22

0p

W2

R24

56

0

R7

4.7

k

L1 L2C

16

47

p

C1

9

C2

4

20

0p

R8

3.3

R1

0

2.2C2

5

20

0p

R9

2.2

2SC2782Q6

2SC2782Q7

R13

3.3

C1

0.0

01

u

C6

0.0

01

u

C2

0.0

01

u

C4

0.0

01

u

TH

1P

TH

9M

04

BC

47

1T

S

1o

UTA

2-I

NA

3+

INA

4-V

5678

R40

18k

C46

62

p

L5 L6

C4

94

7p

C5

31

8p

R1

7

82

L1

1

18

0n

C6

0

2p

R1

6

82

C6

10

.00

1u

C71

8p

DO

+20dBm

8R

CN501

CO

NT

RO

L U

NIT

X5

7-5

61

0-1

2(B

/3)

COMBINER

B

1

3

+B

E

+B

REFLECTEDWAVERECTIFICATION

+B

CN201

FORWARDWAVERECTIFICATION

E

ANT

CN104

CN203

RA

1

8R

5VOLTAGEREFERENCE

B

DC 13.4V

FINAL UNIT (X45-3560-10) : TK-790H(B)K

8T8T

GAT

E B

IAS

DR

AIN

BIA

S

IC1RA30H1317M-31

TX DRIVE AMP

Q6,7

FINAL AMP

2SC4116(Y)Q20

RIPPLE FILTER

D11

1SS355

CURRENTSTEERING

IC2

OP291GS

DC AMP

C8

9

0.4

7u

25

2SC2712(Y)Q2

DC SW

2SC2712(Y)Q1

DC SW

PROTECT OF VOLTAGE

D10

E

PC

8T

8R

DB

+IN

B

-IN

B

oU

TB

+V

IC3OP291GS

DC AMP

D4

SURGEABSORPTION

D7

PROTECT OF REVERSECONNECTION

D602CZ10(X,Y)

SURGE ABSORPTION

TX/RX SW 2SD1624(S)Q9

TX/RX SW

D51SS193

D7

SG

-5L

(R)

C6

7

33

0u

25

C6

5

33

0u

25

D4

22

ZR

-10

D

DO

TX

-RX

UN

ITX

57

-56

10

-12

(A/3

)

68

0p

18

0p

15

0p

C8

5

0.0

1u

C8

6

47

0p

C8

4

0.1

u

D1

0

02

DZ

5.6

(X,Y

)

C8

3

4.7

u1

0

TX

-RX

UN

ITX

57

-56

10

-12

(A/3

)

C8

8

0.1

u

C8

7

10

00

p

R3

3

10

k

C9

2

10

00

p

C9

1

47

u1

6

C9

0

10

00

p

oUTA +V

-INA oUTB

+INA -INB

-V +INB

R42

10k

TX

-RX

UN

ITX

57

-56

10

-12

(A/3

)

RA

13.4V(11.9V)

9.3V(0V)

0V(2.7V)

0V(2.0V)

0V(1.3V)

0V(0.2V)

0V(7.94V)

7.92V(0V)

+50.41dBm

TK-790H(B)

2967-3, Ishikawa-machi, Hachioji-shi, Tokyo, 192-8525 Japan

P.O. BOX 22745, 2201 East Dominguez Street, Long Beach, CA 90801-5745, U.S.A.

6070 Kestrel Road, Mississauga, Ontario, Canada L5T 1S8

Rembrücker Str. 15, 63150 Heusenstamm, Germany

Leuvensesteenweg 248 J, 1800 Vilvoorde, Belgium

13, Boulevard Ney, 75018 Paris, France

KENWOOD House, Dwight Road, Watford, Herts., WD18 9EB United Kingdom

Amsterdamseweg 37, 1422 AC Uithoorn, The Netherlands

Via G. Sirtori, 7/9 20129 Milano, Italy

Bolivia, 239-08020 Barcelona, Spain

(A.C.N. 001 499 074)16 Giffnock Avenue, Centrecourt Estate, North Ryde, N.S.W. 2113 Australia

Unit 3712-3724, Level 37, Tower one Metroplaza, 223 Hing Fong Road, Kwai Fong, N.T., Hong Kong

1 Ang Mo Kio Street 63, Singapore 569110

Documents

SERVICE MANUAL SUPPLEMENT - radiomanual.inforadiomanual.info/.../Kenwood_TK-790H_B_serv_supplement_2005.pdfSUPPLEMENT SERVICE MANUAL Cabinet (Upper) ... This service manual applies