Kenwood TK-8100 Service Manual

UHF FM TRANSCEIVER

TK-8100

SERVICE MANUAL

Microphone (T91-0624-05) : K

Cabinet (A01-2178-02)

Key top (K29-9262-01)

CONTENTS

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

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

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

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

INSTALLATION ....................................... 11

DISASSEMBLY FOR REPAIR ................. 14

CIRCUIT DESCRIPTION .......................... 17

SEMICONDUCTOR DATA ...................... 22

COMPONENTS DESCRIPTION .............. 23

PARTS LIST ............................................. 24

Panel assy (A62-1074-03)

PACKING ................................................. 31

ADJUSTMENT ........................................ 32

PC BOARD

DISPLAY UNIT (X54-3430-20) ............ 36

TX-RX UNIT (X57-6920-XX) ............... 38

SCHEMATIC DIAGRAM.......................... 42

BLOCK DIAGRAM ................................... 46

LEVEL DIAGRAM .................................... 48

TERMINAL FUNCTION ........................... 50

SPECIFICATION ...................................... 51

EXPLODED VIEW.................................... 30

TK-8100

GENERAL

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 date. Changes which may occur after publication are covered by either Service Bulletins or Manual Revisions, which 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.

PERSONAL SAFETY

The following precautions are recommended for personal safety :

•DONOT transmit if someone is within two feet (0.6

meter) of the antenna.

•DONOT transmit until all RF connectors are secure and

any open connectors are properly terminated.

• SHUT OFF this equipment when near electrical blasting

caps or while in an explosive atmosphere.

• All equipment should be properly grounded before power-

up for safe operation.

• This equipment should be serviced by only qualified tech-

nicians.

PRE-INSTALLATION CONSIDERATIONS

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.

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. Signalling 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 rec-

ommended.

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.

GENERAL / SYSTEM SET-UP

TK-8100

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.

5-2. Radio location

Select a convenient location for your control station radio which is as close as practical to the antenna cable entry point. Secondly, use your system’s power supply (which supplies the voltage and current required for your system). Make sure sufficient air can flow around the radio and power supply to allow adequate cooling.

SERVICE

This radio is designed for easy servicing. Refer to the schematic diagrams, printed circuit board views, and alignment procedures contained in this manual.

NOTE

If you do not intend to use the 3.5-mm jack for the external speaker, fit the supplied speaker-jack cap to stop dust and sand from getting in.

Antenna connector

Power input connector

Speaker jack cap

SYSTEM SET-UP

Merchandise received

License and frequency allocated by FCC

Choose the type of transceiver

Transceiver programming

KES-3

External speaker

(Option)

Modem GPS receiver or

Modem GPS controller

KCT-39

Connection cable

KCT-36

Extension cable

KGP-2A

KGP-2B

Frequency range (MHz) RF power

450~490 25W K

440~480 25W M

See page 5. A personal computer (IBM PC or compatible), programming interface (KPG-46), and programming software (KPG-80D) are required for programming.

(Option)

KCT-18

Ignition sense cable

Delivery

Mobile data

(Option)

KDS-100

terminal

(Option)(Option)

(Option)

Type

TK-8100

OPERATING FEATURES

1. Controls and Functions

1-1. Front Panel

we r u

1-2. Microphone

1-3. Display

Indicator Description

Appears while transmitting.

Appears when trunking is activated.

Appears while monitoring the selected channel

(squelch is off).

Appears when making a call using Code

Squelch or Selective Call. Appears and blinks

when receiving a Code Squelch call.

Appears while scanning.

Appears when the AUX port has been

activated or when the Scrambler function has

been selected.

Appears while using the Talk Around function.

q (Power) switch

Press to switch the transceiver ON. Press and hold for approximately 1 second to switch the transceiver OFF.

w VOL / keys (left side)

Press to increase or decrease the volume level.

e Display

Refer to right.

r CH / keys (right side)

Press to increase or decrease the channel number.

t MON / SCN / / keys

PF (Programmable Function) keys. Press each key to activate its programmable function.

y Microphone jack

Insert the microphone plug into this jack.

u Speaker

Internal speaker.

1-4. Rear Panel

Antenna connector

The selected channel is set as a Priority

channel.

The selected channel is added to the scanning

sequence.

Appears when a signal is detected on the

currently selected channel.

Appears when the transceiver keys have been

locked, using the Key Lock function.

Displays the currently selected group and

channel number, or the channel name.

External speaker jack

i PTT switch

Press this switch, then speak into the microphone to call a station.

Power input connector

REALIGNMENT

TK-8100

1. Modes

User mode PC mode PC programming mode

Clone mode

Self programming mode

Mode Function

User mode For normal use.

PC mode Used for communication between the

radio and PC (IBM compatible).

PC programming Used to read and write frequency data

mode and other features to and from the radio.

PC test mode Used to check the radio using the PC.

This feature is included in the FPU.

PC tuning mode Used to tune the radio using the PC.

Clone mode Used to transfer programming data from

one radio to another.

Self programming You can program the frequency, signalling

mode and other functions using only the radio.

PC test mode

PC tuning mode

2. How to Enter Each Mode

Mode Operation

User mode Power ON

PC mode Received commands from PC

Clone mode

Self programming mode [MON]+Powr ON (Two seconds)

[CH DOWN]+Power ON (Two seconds)

3-2. Connection Procedure

1. Connect the TK-8100 to the personal computer with the

interface cable.

2. When the Power is switched on, user mode can be en-

tered immediately. When the PC sends a command, the

radio enters PC mode.

When data is transmitted from transceiver, the TX indica-

tor blink.

When data is received by the transceiver, the BUSY indi-

cator blink.

In the PC mode, “ PC ” is displayed on the LCD.

3-3. KPG-46 Description

(PC programming interface cable : Option)

The KPG-46 is required to interface the TK-8100 to the computer. It has a circuit in its D-subconnector (25-pin) case that converts the RS-232C logic level to the TTL level.

The KPG-46 connects the modular microphone jack of the TK-8100 to the computers RS-232C serial port.

3-4. Programming Software Description

KPG-80D is the programming software for TK-8100 supplied on three 3.5” floppy diskettes. This software runs under Windows 98, ME, Windows 2000 or XP on an IBM-PC or compatible machine.

The data can be input to or read from TK-8100 and edited on the screen. The programmed or edited data can be printed out. It is also possible to tune the transceiver.

4. Clone Mode

Programming data can be transferred from one radio to another by connecting them via their modular microphone jacks. The operation is as follows (the transmit radio is the master and the receive radio is the slave).

3. PC Mode

3-1. Preface

The TK-8100 transceiver is programmed using a personal computer, a programming interface (KPG-46) and programming software (KPG-80D).

The programming software can be used with an IBM PC or compatible. Figure 1 shows the setup of an IBM PC for programming.

IBM-PC

KPG-46

KPG-80D

TK-8100

Fig. 1

Note :

Clone mode should be enabled.

1. Turn the master TK-8100 power ON with the [CH DOWN] key held down (2 seconds), “ CLONE ” is displayed on the LCD.

2. Power on the slave TK-8100.

3. Connect the cloning cable (No. E30-3382-05) to the modular microphone jacks on the master and slave.

4. Press the [MON] key on the master TK-8100 transceiver. The data of the master is sent to the slave. While the master is sending data, [TX] icon blinked. While the slave is receiving the data, “ –PC– ” is displayed and [BUSY] icon blinked. When cloning of data is completed, the master display “END”, and the master [TX] icon turned off, and the slave automatically operates in the User mode. The slave can then be operated by the same program as the master.

5. The other slave can be continuously cloned. Carry out the operation in step 2 to 4.

TK-8100

REALIGNMENT

4-1. Adding the data password.

If the data password is set in the optional feature menu, you must enter the password (Master transceiver) to activate a clone mode.

You can use 1, 2, 3, and 4 to configure the password. The maximum length of the password is 6 digits.

1. [CH DOWN]+Power ON.

2. “CLN LOCK” is displayed on the LCD.

3. Enter the password using 1 : [MON] key, 2 : [SCN] key, 3 :

] key and 4 : [ ] key.

[

4. Press [CH DOWN] key.

5. If the password matches, the transceiver enters a clone

mode and “ CLONE ” is displayed. Otherwise, trans-

ceiver beeps and returns to the password input mode.

Clone cable (E30-3382-05)

Fig. 2

■ Flow Chart (Master radio)

Press [CH DOWN] key+Power ON for 2 seconds

Is data

password

set?

Start the clone function

Ye s

Shows CLN LOCK

Input passward if

passward is correct

Clone mode

[MON]

5. Self Programming Mode

Write mode for frequency data and signalling, etc. To be used ONLY by the authorized service person maintaining the user’s equipment. After programming, reset the FPU to the “Self- Programming” disabled mode. Radios CANNOT be delivered to the end-user in the self-programming mode.

5-1. Enter to the Self Programming Mode

Hold down the [MON] key and turn the power switch on. When enter the self programming mode, “ SELF ” is displayed.

5-2. Adding the Data Password

If the data password is set in the optional feature menu, you must enter the password to activate a self programming mode.

You can use 1, 2, 3 and 4 to configure the password. The maximum length of the password is 6 digits.

1. [MON]+Power ON.

2. “SELFLOCK” is displayed on the LCD.

3. Enter the password using 1 : [MON] key, 2 : [SCN] key, 3 :

] key and 4 : [ ] key.

[

4. Press [CH DOWN] key.

5. If the password matches, the transceiver enters a self pro-

gramming mode and “ SELF ” is displayed. Otherwise,

transceiver beeps and returns to the password input

mode.

Note :

This mode (self programming mode) cannot be set when it has been disabled with the FPU.

5-3. Channel Setting Mode

Each channel can be setup in its action mode by using the panel keys.

• Pressing [MON] when “ SELF ” is displayed, sets chan-

nel setting mode.

• Select an item set using [ ] then change the selection

with the [CH UP] or [CH DOWN].

• The data displayed using [SCN] is stored in the memory

and then proceeds to the next item.

• Pressing [

in the memory.

• Press [MON] to set the display to “ SELF ” and return to

reset (default) status.

The setup items for channel setting mode are listed below.

No.

Function

Select 1~64 key :

channel selection

Select 1~8 key :

group selection

1RX Step 2.5kHz~ Display when an item

frequency

] proceeds to the next item without storing it

Choices Display Remarks

1– 1.

1– 64.

1 . –1

8 . –1

STP 250

1MHz is selected or a step is

Blank key : Hold 1 second

100.0000~ to frequency on/blank

550.0000MHz switching.

STP 1M

R . –––––––

R. 450.0000

Group/Channel

changed (about 0.5

seconds).

key : Select the

frequency step

The right most dot

indicates 50Hz digit.

(On=5, Off=0)

REALIGNMENT

No.

Function

2RX Off

signalling

3TX Step 2.5kHz~ Display when an item

frequency

4TX Off key : Off/QT/DQT

signalling

Choices Display Remarks

--------

QT 67.0~254.1

(0.1Hz step mode)

QT 67.0~250.3

(EIA mode)

DQT 000~777

Normal

(1 step mode)

DQT 023~754

Normal

(Standard

table mode)

DQT 000~777 key : Hold 1 second

Inverse to switch between

(1 setp mode) Normal/Inverse.

DQT 023~754

Inverse

(Standard

table mode)

1MHz is selected or a step is

Blank key : Hold 1 second

100.0000~ to frequency on/blank

550.0000MHz switching.

QT 67.0~254.1

(0.1Hz step mode)

QT 67.0~250.3

(EIA mode)

DQT 000~777

Normal

(1 step mode)

DQT 023~754

Normal

(Standard

table mode)

QT 67.0✽

QT 254. 1✽

QT 67. 0

QT 250. 3

DQT000N✽

DQT777N✽

DQT023N

DQT754N

DQT000Ι ✽

DQT777Ι ✽

DQT023Ι

DQT754Ι

STP 250

STP 1M

T . –––––––

T.450. 0000

--------

QT 67.0✽

QT 254. 1✽

QT 67. 0

QT 250. 3

DQT000N✽

DQT777N✽

DQT023N

DQT754N

key : Off/QT/DQT

switching

changed (about 0.5

seconds).

key : Select the

frequency step

The right most dot

indicates 50Hz digit.

(On=5, Off=0)

switching

TK-8100

No.

Function

5 Option Off Default

signalling

6SP Carrier

unmute QT/DQT Not used when QT/

7 Busy Off Default

channel Carrier

lockout QT/DQT If QT/DQT decode is

8 Beat No Default

9RF High power Default

power Low power

10 Wide/ Wide Default

Narrow Narrow

11 Scan Delete

Del/Add Add Default

12 Priority No Default

channel Yes Not used when scan

13 PTT ID Off Default

Scrambler

code

• Finish beep will sound when displayed data is stored.

• The settings for scrambler and scrambler code can only be selected when voice scrambler board is installed.

Choices Display Remarks

DQT 000~777

Inverse to switch between

(1 setp mode) Normal/Inverse.

DQT 023~754

Inverse

(Standard

table mode)

DTMF

Carrier+DTMF Not used when option

QT/DQT+ Not used when option

DTMF signalling is none.

DTMF If option signalling is

Yes

Begin of TX

End of TX

Both

Off Default

1~16 Default

DQT000Ι ✽

DQT777Ι ✽

DQT023Ι

DQT754Ι

NONE

DTMF

S.UM CARR

S.UM QTDQ

S.UM C+DT

S.UM Q+DT

BCL OFF

BCL CARR

BCL QTDQ

BCL DTMF

SHFT NO

SHFT YES

PWR H

PWR L

WIDE

NARROW

SCAN DEL

SCAN ADD

P. CH NO

P.CH YES

P . ID OFF

P .ID BOT

P .ID EOT

P.ID BOTH

SCR OFF

SCR ON

SCR 1

SCR 16

key : Hold 1 second

DQT decode is not set.

signalling is none.

not set, it cannot be

selected.

set to off, it cannot be

selected.

priority is not fixed.

TK-8100

REALIGNMENT

■ Flow Chart 5-4. DTMF Setting Mode

Self programming mode

[MON]

Channel setting mode

Option signalling

Busy channel lockout

Priority channel

Return to channel setting mode

[MON]

[SCN]

RX frequency

[SCN] or [ ]

RX signalling

[SCN] or [ ]

TX frequency

[SCN] or [ ]

TX signalling

[SCN] or [ ]

SP unmute

[SCN] or [ ]

Beat shift

[SCN] or [ ]

RF power

[SCN] or [ ]

Wide/Narrow

[SCN] or [ ]

Scan Del/Add

[SCN] or [ ]

PTT ID

[SCN] or [ ]

Scrmbler

[SCN] or [ ]

Scrmbler code

[SCN] or [ ]

Channel

selection

[ ]

Hold [ ]

[ ]

Off

DQT*N

DQT N

[ ]

Hold [ ]

[ ]

Off

DQT*N

DQT N

Not used when scan priority is not fixed.

[ ]

frequency step

Blank

[ ]

Hold

[ ]

Hold

[ ]

frequency step

Blank

[ ]

Hold

[ ]

Hold

[ ]

Change

Group

selection

DQT*I

DQT I

DQT*I

DQT I

Each radio can be setup in its action mode by using the

panel keys.

• Pressing [SCN] when “ SELF ” is displayed, sets the DTMF setting mode.

• The data displayed using [SCN] is stored in the memory.

• Pressing [

• Press [

] to without storing it in the memory.

] to default status.

■ Flow Chart

Self mode (Display “ SELF ”)

[SCN]

DTMF setting mode

The setup items for DTMF setting mode are listed below.

No.

Function

1 ID code 000~ Display when an item

9999999999 is selected (about

(Code squelch) 0.5 seconds).

0000~9999 Display when an item

(Selective call) is selected (about

(*1) 0.5 seconds).

• Finish beep will sound when displayed data is stored.

• (*1) : ID code range is from 3 to 4 digits when selective call is selected.

[ ]

Choices Display Remarks

[ ]

Set default ID code

12345678

–––––987

–––––000

––––1234

(*1)

–––––000

(*1)

Display of the current

setting (If it is 8 or

more digits, scroll it).

Display when a code

is input (Input it with

DTMF key only).

key : Set to default

data

Display of the current

setting (Input the code

with DTMF key only).

key : Set to default

data

+ 16 hidden pages