Kenwood TK-7102H User Manual

VHF FM TRANSCEIVER

TK-7102H

SERVICE MANUAL

REVISED

This service manual applies to products with 50300001 or subsequent serial numbers. In terms of the products with the serial numbers earlier than 50300001, refer to the TK-7102H service manual as per part No. B51-8610-00 and B51-8627-00.

Chassis (A10-4048-21)

Cabinet (A01-2181-01)

Modular jack (E08-0877-05)

Front glass (B10-2753-03)

Key top (K29-9065-01)

Panel assy (A62-0942-03)

CONTENTS

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

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

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

REALIGNMENT ......................................... 8

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

DISASSEMBLY FOR REPAIR ................. 13

CIRCUIT DESCRIPTION .......................... 14

SEMICONDUCTOR DATA ...................... 18

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

PARTS LIST ............................................. 21

EXPLODED VIEW.................................... 27

Service Manual List

Title Parts number Remarks Destination TX-RX unit number Display unit number

TK-7102H B51-8610-00 M X57-6380-20 X54-3340-20

TK-7102H B51-8627-00 SUPPLEMENT K,K2,M,M2 X57-6380-XX X54-3340-20

TK-7102H B51-8610-10 REVISED K,K2,M,M2 X57-6700-XX X54-3460-20

(This service manual)

PACKING ................................................. 28

ADJUSTMENT ........................................ 29

TERMINAL FUNCTION ........................... 34

PC BOARD

DISPLAY UNIT (X54-3460-20) ............ 35

TX-RX UNIT (X57-6700-XX) ............... 37

SCHEMATIC DIAGRAM.......................... 43

BLOCK DIAGRAM ................................... 47

LEVEL DIAGRAM .................................... 49

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

TK-7102H

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.

PERSONNEL SAFETY

The following precautions are recommended for personnel 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-7102H

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

146~174 50W K,M

136~162 50W K2,M2

See page 8. A personal computer (IBM PC or compatible), programming interface (KPG-46), and programming software (KPG-70D) are required for programming.

(Option)

KCT-18

Ignition sense cable

Delivery

Mobile data

(Option)

KDS-100

terminal

(Option)(Option)

(Option)

Type

TK-7102H

OPERATING FEATURES

1. Controls and Functions

1-1. Front Panel

we tr

1-2. Microphone

q (Power) switch

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

w ▲ key

Press to increase the volume level.

e ▼ key

Press to decrease the volume level.

r ● key

PF (Programmable Function) key. The default setting of this key is None (no function). The programmable functions available for this key are listed below.

key

PF (Programmable Function) key. The default setting of this key is Monitor. Other programmable functions available for this key are listed below.

y 1/ 2/ 3/ 4 keys

Press to select a channel from 1 to 4.

u Microphone jack

Insert the microphone plug into this jack (the microphone is an optional accessory).

i Speaker

Internal speaker.

o PTT switch

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

1-3. Auxiliary Programmable Functions

• Emergency • Scan On/OFF

• Key Lock • Talk Around

• Monitor • Temporary Delete

• None (no function) • AUX

• Horn Alert • Scan + Temporary Delete

1-4. Display

Indicator Description

Light while transmitting.

Lights when a signal is detected on

the currently selected channel.

Lights while the function programmed

onto its corresponding key is activated.

Lights while the function programmed

onto its corresponding key is activated.

Lights to display the currently selected

channel (1~ 4).

1-5. Rear panel

Antenna connector

Power input connector

External speaker jack

OPERATING FEATURES

TK-7102H

2. Operation Features

The TK-7102H is a VHF FM radio designed to operate in conventional format. The programmable features are summarized.

3. Transceiver Controls and Indicators

3-1. Front Panel Controls

All the keys on the front panel are momentary-type push buttons. The functions of these keys are explained below.

• POWER key

Transceiver POWER key. When the power is switched off, all the parameters are stored in memory. When the power is switched on again, the transceiver returns to the previous conditions.

• CHANNEL keys

• MONITOR key (Programmable)

• ● key (Programmable)

• VOLUME UP/DOWN key

When the key is pressed, the volume level is increased/ decreased and repeats if held for 200ms or longer.

• BUSY/TX LED

The BUSY indicator (Green LED) shows that the channel is in use. The TX indicator (Red LED) shows that you are transmitting.

3-2. Programmable Keys

The FPU (KPG-70D) enables programmable keys to select the following functions.

• Emergency

• Key Lock

• Monitor

• Scan ON/OFF

• Talk Around

• Temporary Delete

• None

• AUX

• Horn Alert

• Scan + Temporary Delete

• Emergency

Pressing this key for longer than 1 second causes the transceiver to enter the emergency mode. The transceiver jumps to the programmed “Emergency channel” and transmits for 25* seconds.

The transceiver disables mic mute while transmitting. After finishing transmission, the transceiver receivers for 5* seconds. The transceiver Mute* the speaker while receiving. Following the above sequence, the transceiver continues to transmit and receive. * Default value.

• Key lock

Pressing this key causes the transceiver to accept entry of only the [Vol Up/Down]*, [Key lock], Microphone [PTT], [Monitor], [Emergency], and [Power] keys. * Programmable

• Monitor

Used to release signalling (press once) or squelch (press and hold for approximately two seconds) when operating as a conventional. It is also used to reset option signalling.

• Scan ON/OFF

Press this key starts scanning. Pressing this key stops scanning.

• Talk around

Press this key, the transceiver uses the receive frequency and the tone for transmission.

The operator can call the other party directly (without repeater). Press this key again, the talk around function goes off.

• Temporary delete

The “Add” channel contained in the scan sequence, and “Delete” channel is not contained. In the scan mode, this key switches the channel delete temporarily (Press and hold for approximately one second).

When the transceiver is turned off, the transceiver exits the scan or switches the scan function off.

• None

Sounds error operation beep, and no action will occur. Use this function when the transceiver is required to be more simple operated.

• AUX

Press to activate the auxiliary port. Press again to deactivate the auxiliary port. Auxiliary is used with optional boards, allowing you to activate and deactivate these optional functions. While activated, the AUX icon appears on the display.

• Horn alert

Horn Alert is a useful feature that will notify you of a received call while you are away from your vehicle. The transceiver is programmed to sound the vehicle horn or some other external alert device (such as the vehicle headlights) when a call is received that has correct signalling.

• Scan + Temporarily delete

To temporarily remove a channel from the Scan list, press and hold this key for approximately one second during Scan, while Scan is paused on the undesired channel, to temporarily remove that channel from the scanning sequence. After switching the Scan function OFF, or switching the transceiver OFF and then ON again, the Scan settings return to normal.

TK-7102H

OPERATING FEATURES

4. Scan Operating

■ SCAN start condition

Two or more channels must be added to all channels that can be scanned. The transceiver must be in normal receive mode (PTT off).

When you activate the key programmed to the scan ON/ OFF function, the scan starts. The indicator next to the programmed key LED blinks.

■ Scan stop condition

The scan stops temporarily if the following conditions are satisfied.

1) A carrier is detected, then QT/DQT matches on channels

for which receive the QT/DQT is set by the programming

software.

2) A carrier is detected on the channels for which receiving

QT/DQT is not set by the programming software or when

the monitor (signalling cancel) function is activated.

■ Revert channel

The revert channel is used to transmit during scanning and set by the programming software (KPG-70D).

1) Selected channel

The transceiver reverts to the channel before scanning or

the channel that you changed during scan.

2) Selected with talkback

The transceiver reverts to the selected channel prior to

scan initiation.

However, if a call is received on a channel other then the

selected channel and PTT is pressed before scanning re-

sume, the transceiver “talks back” on the current receive

channel.

■ Scan end

When you press the key programmed to the scan function during scan mode, the scan ends.

The indicator next to the programmed key LED turns off.

■ Temporary delete

It is possible to delete channel temporary during scan. When scan stops on unnecessary channel for example by interference of the other party, activate the delete function (for example press and hold the key for approximately one second), then that channel is deleted temporarily and scan restart immediately.

The temporary deleted channels return to pre-set delete/ add channels, when the transceiver is turned off or the scan function is switched off.

5. Details of Features

■ Time-out timer

The time-out timer can be programmed in 30 seconds increments from 30 seconds to five minutes and off. If the transmitter is transmitted continuously for longer than the programmed time, the transmitter is disabled and a warning tone sounds while the PTT button is held down. The warning tone stops when the PTT button is released.

■ PTT ID

PTT ID provides a DTMF ANI or MSK ID to be sent with every time PTT (connect ID at beginning of transmission, disconnect ID at end of transmission, or both).

You can program PTT ID “on” or “off” for each group channel (DTMF). The contents of ID are programmed for each transceiver.

The transceiver is capable to have ID. The format is DTMF. The timing that the transceiver sends ID is programmable.

BOT : Connect ID is sent on beginning of transmission.

EOT : Disconnect ID is sent on end of transmission.

Both : Connect ID is sent on beginning of transmission

and disconnect ID is sent on end of transmission.

There is also “PTT ID” setting for each channel.

■ Off hook decode

If the Off hook decode function has been enabled, removing and replacing the microphone on the hook has no effect for decoding QT/DQT and option signalling.

■ “TOT” pre-alert

The transceiver has “TOT” pre-alert timer. This parameter selects the time at which the transceiver generates “TOT” pre-alert tone before “TOT” is expired.

“TOT” will be expired when the selected time passes from a TOT pre-alert tone.

■ “TOT” re-key time

The transceiver has “TOT” re-key timer. This timer is the time you can not transmit after “TOT” exceeded. After “TOT” re-key time expired you can transmit again.

■ “TOT” reset time

The transceiver has “TOT” reset timer. This timer is the minimum wait time allowed during a transmission that will reset the “TOT” count.

“TOT” reset time causes the “TOT” to continue even after PTT is released unless the “TOT” reset timer has expired.

■ Clear to transpond

The transceiver waits the transpond of DTMF if channel is busy until channel open. This feature prevents the interference to other party.

6. Option Signalling (DTMF)

Built-in DTMF decoder is available for option signalling.

It is possible to use individual call, group call, Stun.

If the option signalling matches, a predetermined action will occur.

If option signalling matches on a channel is set up with option signalling, the channel LED will flash and option signalling will be released. The transpond or alert tone will sound.

While option signalling matches (or if option signalling is deactivated when you are transmitting), you can mute or unmute QT/DQT/Carrier.

OPERATING FEATURES

TK-7102H

■ SP Unmute

You can select the type of SP Unmute system for each

channel. The selection is as follows.

Carrier, QT/DQT: Channel with this option will not check ID Code in order to open its speaker. Carrier+DTMF, QT/DQT+DTMF: Channel that is set with this option will have to check for ID Code in order to open its speaker. Default: Carrier, QT/DQT.

SP unmute

Carrier None None Carrier Sounds

Carrier+DTMF

QT/DQT Yes None Carrier Not Sounds

QT/DQT+DTMF

Channel setting

QT/DQT

DTMF condition

Yes Carrier Sounds

None Yes Carrier Not Sounds

Yes Carrier Not Sounds

Yes Yes Carrier Not Sounds

RX condition Speaker

Carrier+DTMF Sounds

Carrier+QT/DQT Sounds

Carrier+QT/DQT+DTMF

Carrier+DTMF Not Sounds

Carrier+QT/DQT Not Sounds

Carrier+QT/DQT+DTMF

Carrier+DTMF Not Sounds

Sounds

7. Audible User Feedback Tones

The transceiver outputs various combinations of tones to

notify the user of the transceiver operating state.

Refer to the help file on the KPG-70D, regarding the func-

tions that are not listed below.

■ Stun on tone

When a stun code is received, transpond tone sounds.

■ Stun off tone

When a stun release code is received, transpond tone

sounds.

■ Group call tone

Sounds when a group call with the correct DTMF option signalling is received, repeats 7 times. You can select yes or no in the Alert tone level setting.

■ Individual call tone

Sounds when an individual call with the correct DTMF option signalling is received. You can select yes or no in the Alert tone level setting.

■ Key input error tone

Sounds when a key is pressed but that key cannot be used. You can select yes or no for the optional feature's warning tone.

■ Transpond tone

Sounds when an individual call with the correct DTMF option signalling is received. For group calls, only the group tone will sound, not the transpond tone.

Note :

When QT/DQT is not used, QT/DQT and QT/DQT+DTMF

can not be selected.

When DTMF is not used, Carrier+DTMF and QT/

DQT+DTMF can not be selected.

■ Auto Reset

If option signalling matches a group set up with option signalling, option signalling is released. After matching option signalling, option signalling will temporarily reset automatically.

■ Stun

If the stun code matches, a predetermined action will occur. Whether option signalling is activated or not, when stun matches on any channel, the transceiver will become TX inhibited or TX/RX inhibited. While stun is active, if the stun code + “#” code is received, stun will deactivate.

When stun matches, transpond will function. Alert will not be output.

■ Pre alert tone

Sounds prior to the TOT TX inhibit activation. If TOT pre alert is set, the tone sounds at the amount of time programmed, before the TOT expires (TOT time – TOT pre alert time = Pre alert tone sounding time). You can select yes or no for the optional feature’s warning tone.

■ Transmit protection

The final FET is protected against heat while transmitting by making the radio cuts down TX power when the temperature of the final FET becomes higher than reference. After that, if the temperature continue to rise, transmission is stopped. The final FET is also protected against over voltage by having the radio to check that the voltage of power supply connected to the radio is not higher than about 17V when the radio is turned on, otherwise it can not transmit. In both cases when transmission is stopped, a beep will continue to sound until the PTT key is released.

TK-7102H

REALIGNMENT

1. Modes

User mode

PC mode

Clone mode

Mode Function

User mode For normal use.

PC mode Used for communication between the

Data 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.

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

Clone mode Used to transfer programming data from

Data programming mode

PC test mode

radio and PC (IBM compatible).

This feature is included in the FPU.

one radio to another.

PC tuning mode

2. How to Enter Each Mode

Mode Operation

User mode Power ON

PC mode Received commands from PC

Clone mode [1]+Power ON (Two seconds)

3-2. Connection Procedure

1. Connect the TK-7102H to the personal computer with the interface cable.

2. When the Power is switched on, user mode can be entered immediately. When the PC sends a command, the radio enters PC mode. When data is transmitted from transceiver, the red LED blink. When data is received by the transceiver, the green LED blink. In the PC mode, 4CH LEDs, [MON] LED and [●] LED are turned on.

Notes :

• The data stored in the personal computer must match model type when it is written into the EEPROM.

• Attach the interface cable, then change the TK-7102H to PC mode.

3-3. KPG-46 Description

(PC programming interface cable : Option)

The KPG-46 is required to interface the TK-7102H 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-7102H to the computers RS-232C serial port.

IMC-PC

KPG-46

3. PC Mode

3-1. Preface

The TK-7102H transceiver is programmed using a personal computer, a programming interface (KPG-46) and programming software (KPG-70D).

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

KPG-70D

TK-7102H

Fig. 1

3-4. Programming Software Description

The KPG-70D programming disk is supplied in 3-1/2" disk format. The software on this disk allows a user to program TK-7102H radio via a programming interface cable (KPG-46).

3-5. Programming With IBM PC

If data is transferred to the transceiver from an IBM PC with the KPG-70D, the destination data (basic radio information) for each set can be modified.

REALIGNMENT

TK-7102H

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).

Note :

Clone mode should enabled.

1. Turn the master TK-7102H power ON with the [1] key held

down. The TK-7102H [●] LED is turned on.

2. Power on the slave TK-7102H.

3. Connect the cloning cable (No. E30-3382-05) to the modu-

lar microphone jacks on the master and slave.

4. Press the [●] key on the master TK-7102H transceiver.

The data of the master is sent to the slave. While the mas-

ter is sending data, [TX] LED blinked. While the slave is

receiving the data, 4 LEDs, [MON] LED, [●] LED are

turned on and [BUSY] LED blinked. When cloning of data

is completed, the master [TX] LED 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.

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 10 digits.

5. Accessory Connection Cable (KCT-39)

The KCT-39 is an accessory connection cable for connecting external equipment. The connector has 15 pins and the necessary signal lines are selected for use.

5-1. Installing the KCT-39 in the Transceiver

1. Lift the DC cord bushing (1) from the chassis. Peel the

pad as shown in Figure 3 (

2. Stick the pad to the DC cord (3) and chassis (4), both

of which are supplied with the KCT-39.

Fig. 3

1. [1]+Power ON.

2. [1]~[4] LED, and MON LED are turned ON.

3. Enter the password using [1]~[4] keys.

4. Press [MON] key.

5. If the password matches, the transceiver enters a clone mode. Otherwise, transceiver beeps and returns to the password input mode.

Clone cable (E30-3382-05)

Fig. 2

Fig. 4

TK-7102H

REALIGNMENT

3. Insert the KCT-39 cable (5) into the chassis (6). The

wire harness band (

) must be inside the chassis and

face down.

4. Connect the KCT-39 to the TX-RX unit as shown in Figure

5 (

Avoid forming the wiring towards the shielding cover closure area.

CN2

Chassis

Cushion

Chassis

Face down

End view of this area

Wire harness band (Stopper)

KCT-39 sumi tube

PCB

CN3

■ Accessory Port Function

No. Color Internal Name

1471013

2581114

3691215

1 Red CN2-1 SB

2 Pink CN3-1 IGN

3 Black CN2-3 GND

4 Brown CN3-3 DETO

5 Orange CN3-2 DATAI

6 Yellow CN2-8 FNC4

7 Green CN2-7 FNC3

8 Blue CN2-9 FNC5

9 Purple CN2-12 FNC8

10 Gray CN2-10 FNC6

11 White CN2-11 FNC7

12 NC NC

13 NC NC

Sky blue

Turquoise

connector

CN2-6 FNC2

CN2-5 FNC1

6. Ignition Sense Cable (KCT-18)

The KCT-18 is an optional cable for enabling the ignition function. The ignition function lets you turn the power to the transceiver on and off with the car ignition key.

Fig. 5

5. Connect the KCT-39 to the external accessory by inserting the crimp terminal ( which are supplied with the KCT-39.

13 15

) into the square plug (10), both of

6-2. Connecting the KCT-18 to the Transceiver

1. Install the KCT-39 in the transceiver. (See the KCT-39 section)

2. Insert the KCT-18 lead terminal (

39 (

) into pin 2 of the KCT-

Fig. 7

Fig. 6

REALIGNMENT / INSTALLATION

TK-7102H

6-3. Modifying the Transceiver

Modify the transceiver as follows to turn the power on and

off with the ignition key.

1. Remove the jumper resistor (0Ω) R71 of the TX-RX unit.

■ Setting With the KPG-70D

Select “External Devices” from the “Edit” menu and en-

able the “Ignition Sense”.

TX-RX UNIT Component side

CN2

R71

INSTALLATION

1. Optional Board

1-1. Voice Scrambler Board Connection

■ Modification

1. Remove the cabinet and shielding cover from the transceiver.

2. Delete R202 and R267 on the TX-RX unit.

TX-RX UNIT Component side

CN3

R267

R202

Fig. 8

Fig. 1

■ Connection

The functions of pins of CN2 and CN3 on the TX-RX unit

are shown in the TERMINAL FUNCTION section (page 34).

12 pins lead wire

with connector (A)

CN2

CN3

E37-1081-05

7 8

9 10 11 12

11 pins lead wire

with connector (B)

E37-1080-05

8 7 D C B A

12 5

A12

Voice scrambler board

A BA11 CA10 DA9 E 1 2 3 4 5B5 6B7 7A8 8A7 9A3 10B11 11B9 12B4 E18

Fig. 2

TK-7102H

INSTALLATION

■ Pins Connection

Voice scrambler

functions with connector (A) with connector (B)

A A-12 –

B A-11 –

C A-10 –

D A-9 –

5– B-5

6– B-7

7 A-8 –

8 A-7 –

9 A-3 –

10 – B-11

11 – B-9

12 – B-4

Avoid forming the wiring towards shielding cover closure area.

TX-RX UNIT Component side

12 pins lead wire 11 pins lead wire

1-2. Example for Connection

■ Picture (Trunking Board)

Insulation sheet

Cushion C

Trunking board

Cushion D (G13-1972-04)

Cushion B

CN2

to CN2 and CN3

Front side

CN3

Voice scrambler

board

to CN2 and CN3

Cushion (G13-1963-04) Voice scrambler board Cushion (G13-1964-04)

Fig. 3

■ Setting With the KPG-70D

Select “External Devices” from the “Edit” menu and set

the “Scrambler”.

Note :

The voice scrambler board is connected subsequent to the de-emphasis circuit.

TX-RX unit

CN4

Front side

Fig. 4

■ Setting With the KPG-70D

Select “External Devices” from the “Edit” menu and set

the “SmarTrunk”.

DISASSEMBLY FOR REPAIR

TK-7102H

1. When you remove the panel, turn the transceiver up side down. Detach the panel by lifting the tabs as shown below.

Tabs

Fig. 1

2. To remove the cabinet, first turn the transceiver up side down. Detach the cabinet by prying the tabs as shown below.

4. Mount the display unit To mount the display unit on the panel, follow the correct procedures shown to ensure easy display unit assembly and good fitting onto the panel.

q Snap in bottom of display unit first. w Snap in top of displaly unit.

Fig. 4

5. When mounting the front panel, match the 4 tabs of the chassis with the panel, being sure they attach securely.

Tabs

Fig. 2

3. To remove the display unit PCB, detach the PCB by lifting at the indents of the PCB as shown below.

Indents

Tabs

Fig. 5

Fig. 3

+ 30 hidden pages