KENWOOD TK 8150 radio Service manual

UHF FM TR

TK-

SERV

Microphone

(T91-0621-15)

© 2002-10 PRINTED IN JAPAN

B51-8634-00 (N) 743

Cabinet

(A01-2185-12) fineline6

Knob

(K29-9221-03) x 2

Key top

(K29-9222-02)

Panel assy

(A62-1037-03)

GENERAL .................................................. 2

SYSTEM SET-UP ...................................... 3

OPERATING FEATURES .......................... 4

REALIGNMENT ......................................... 5

INSTALLATION ......................................... 7

CIRCUIT DESCRIPTION .......................... 12

SEMICONDUCTOR DATA ...................... 16

COMPONENTS DESCRIPTION .............. 20

PARTS LIST ............................................. 22

EXPLODED VIEW .................................... 32

PACKING ................................................. 33

CONTENTS

ADJUSTMENT ........................................ 34

PC BOARD

DISPLAY UNIT (X54-3400-10) ............ 45

TX-RX UNIT (X57-6580-10) ................ 49

SCHEMATIC DIAGRAM .......................... 55

BLOCK DIAGRAM ................................... 63

WIRING .................................................... 65

TERMINAL FUNCTION ........................... 66

OPTIONS ................................................. 68

SPECIFICATIONS .................................... 69

fineline6

2

TK-8150

INTRODUCTION

SCOPE OF THIS MANUAL

This manual is intended for use by experienced technicians familiar with similar types of commercial grade communications equipment. It contains all required service information for the equipment and is current as of this publication data. Changes which may occur after publication are covered by either Service Bulletins or Manual Revisions. These are issued as required.

ORDERING REPLACEMENT PARTS

When ordering replacement parts or equipment information, the full part identification number should be included.

This applies to all parts : components, kits, and chassis. If the part number is not known, include the chassis or kit number of which it is a part, and a sufficient description of the required component for proper identification.

PERSONNEL SAFETY

The following precautions are recommended for personnel safety :

• DO NOT transmit if someone is within two feet (0.6

meter) of the antenna.

• DO NOT transmit until all RF connectors are verified secure and any open connectors are properly terminated.

• SHUT OFF and DO NOT operate this equipment near electrical blasting caps or in an explosive atmosphere.

• All equipment should be properly grounded before powerup for safe operation.

• This equipment should be serviced by a qualified technicians only.

1. UNPACKING

Unpack the radio from its shipping container and check for accessory items. If any item is missing, please contact

KENWOOD immediately.

2. LICENSING REQUIREMENTS

Federal regulations require a station license for each radio installation (mobile or base) be obtained by the equipment owner. The licensee is responsible for ensuring transmitter power, frequency, and deviation are within the limits permitted by the station license.

Transmitter adjustments may be performed only by a licensed technician holding an FCC first, second or general class commercial radiotelephone operator’s license. There is no license required to install or operate the radio.

3. PRE-INSTALLATION CHECKOUT

3-1. Introduction

Each radio is adjusted and tested before shipment. However, it is recommended that receiver and transmitter operation be checked for proper operation before installation.

GENERAL

3-2. Testing

The radio should be tested complete with all cabling and accessories as they will be connected in the final installation.

Transmitter frequency, deviation, and power output should be checked, as should receiver sensitivity, squelch operation, and audio output. QT equipment operation should be verified.

4. PLANNING THE INSTALLATION

4-1. General

Inspect the vehicle and determine how and where the radio antenna and accessories will be mounted.

Plan cable runs for protection against pinching or crushing wiring, and radio installation to prevent overheating.

4-2. Antenna

The favored location for an antenna is in the center of a large, flat conductive area, usually at the roof center. The trunk lid is preferred, bond the trunk lid and vehicle chassis using ground straps to ensure the lid is at chassis ground.

4-3. Radio

The universal mount bracket allows the radio to be mounted in a variety of ways. Be sure the mounting surface is adequate to support the radio’s weight. Allow sufficient space around the radio for air cooling. Position the radio close enough to the vehicle operator to permit easy access to the controls when driving.

4-4. DC Power and wiring

1. This radio may be installed in negative ground electrical systems only. Reverse polarity will cause the cable fuse to blow. Check the vehicle ground polarity before installation to prevent wasted time and effort.

2. Connect the positive power lead directly to the vehicle battery positive terminal. Connecting the Positive lead to any other positive voltage source in the vehicle is not recommended.

CAUTION

If DC power is to be controlled by the vehicle ignition switch, a switching relay should be used to switch the positive power lead. The vehicle ignition switch then controls DC to the relay coil.

3. Connect the ground lead directly to the battery negative terminal.

4. The cable provided with the radio is sufficient to handle the maximum radio current demand. If the cable must be extended, be sure the additional wire is sufficient for the current to be carried and length of the added lead.

5. INSTALLATION PLANNING – CONTROL STATIONS

5-1. Antenna system

Control station. The antenna system selection depends on many factors and is beyond the scope of this manual.

Your KENWOOD dealer can help you select an antenna system that will best serve your particular needs.

1

A C B D

TK-8150

PC BOARD

E F G H I J

2

3

service-repairmanual.com

VR901

VOL

C923 R910

R909

Q902

G

S

D

C922

1

100

C931

X901

IC904

Q905

76

75

25

26 50

51

Q906

Q907

4

5

6

7

5 HK

ME

E

DM 1

MIC

PTT

SB 4

J901

8 BLC

PF1

Ref. No. Address

IC902 3F

IC904 3I

Q902 3G

Q905 2I

Ref. No. Address

Q906 4J

Q907 4J

D908 5D

D909 5F

Ref. No. Address Ref. No. Address

D910 5H

D911 5J

D912 4M

D913 5K

D914

D915

5M

4N

8

9

10

11

BLC

E

C902

SB

R907

C907

D905

R944

D902

PTT

ME

MIC

L901

C903 HK

D918

DM

R942

L902

+

R960

C944

+

Q909

D906

D916

D917

D904

C905

C942 R949

C909 C914

CN902

12

R922 C906

PF2 PF3 PF4

I

IC901 G

O

+ C924

R950 C943

Q904

IRS

ES2

1

2

C941

E

C Q903

R924

TP2

TP1

C925

C928

R913

B

R914

R919

R926

CE CL DI DO

DISP LEDA LEDK

CN905

Q908

R927

CN906

R932

K L M N O P Q

DISPLAY UNIT (X54-3400-10) Component side view (J72-0840-19)

R

POWER

S

Layer 1

Layer 2

Layer 3

Layer 4

Component side

Foil side

PF5

D912

PF6

D915

R931 R934

B/2

1

5

2

S1

3

4

6

J72-0840-19 A/2

DISPLAY UNIT (X54-3400-10) Foil side view (J72-0840-19)

J72-0840-19 A/2

B/2

1

2

5

3

6

4

W1

E 1

P4

P3

P2

P1 5

5

1

Layer 1

Layer 2

Layer 3

Layer 4

Component side

Foil side

13

14 fineline6

45

Ref. No. Address

IC901 9F

Q901 10C

Q903 9H

Q904 10F

Ref. No. Address

Q908 10J

Q909

Q911

10B

Q910 10H

11G

Ref. No. Address Ref. No. Address

D902

D904

9C

D903 10D

10E

D905 9B

D906

D907

D916

D917

10C

9I

9C

11B

Ref. No. Address

D918 10A

46