Kenwood TK-260N, TK-260G, TK-270G, TK-270N Service Manual

Document Copyrights

form or by any means, electronic, mechanical, photocopying, recording, or otherwise, for any purpose without the prior written permission of Kenwood.

Disclaimer

While every precaution has been taken in the preparation of this manual, Kenwood assumes no responsibility for errors or omissions. Neither is any liability assumed for damages resulting from the use of the information contained herein. Kenwood reserves the right to make changes to any products herein at any time for improvement purposes.

VHF FM TRANSCEIVER

TK-260G/(N)/270G/(N)

SERVICE MANUAL

E VERSIONS

Knob (PTT) (K29-5334-13)

Knob (Side1) (K29-5333-13)

Antenna (T90-0695-15):E,(N)E (T90-0680-05):(N)T (T90-0681-05):(N)E2

Knob (CHANNEL SELECTOR) (K29-5341-03)

Knob (VOL) (K29-5332-03)

Cabinet assy (A02-2391-23)

Knob (PTT) (K29-5334-13)

Knob (Side1) (K29-5333-13)

B51-8532-00(S) 570

Knob (ENC) (K29-5331-03)

Knob (VOL) (K29-5332-03)

Cabinet assy (A02-2385-23)

TK-260G

M market models are shown.

CONTENTS

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

SYSTEM SET-UP .......................................................... 2

OPERATING FEATURES..............................................3

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

DISASSEMBLY FOR REPAIR..................................... 17

CIRCUIT DESCRIPTION .............................................18

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

DESCRIPTION OF COMPONENTS............................ 24

PARTS LIST.................................................................25

EXPLODED VIEW .......................................................33

PACKING .....................................................................35

Key top (DTMF) (K29-5330-02)

TK-270G

ADJUSTMENT .............................................................36

PC BOARD VIEWS

DISPLAY UNIT (X54-3250-10)............................... 47

TX-RX UNIT (X57-587X-XX)..................................49

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

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

LEVEL DIAGRAM ........................................................ 65

KNB-14/KNB-15A (Ni-Cd BATTERY) ..........................66

OPTIONS .....................................................................67

SPECIFICATIONS ................................... BACK COVER

TK-260G/(N)/270G/(N)

GENERAL / SYSTEM SET-UP

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 the publication date. 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, or 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.

Unit

Model &

destination

TK-260G

TK-270G

(N)E,(N)T

(N)E2 X57-5872-75 136~150MHz

(N)E,(N)T

TX-RX Unit Display Unit Frequency range Remarks Helical Antenna Charger Battery 16 Key

E X57-5872-71

X57-5872-72 _

E X57-5872-73

X57-5872-74

X54-3250-10 146~174MHz

146~174MHz

PERSONNEL SAFETY

The following precautions are recommended for personnel

safety:

●

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.

●

This equipment should be serviced by a qualified technician only.

SERVICE

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

NOTE

The terms “Wide” and “Semi wide” used in this service manual correspond to “Wide 5K” and “Wide 4K” respectively that appear in the menu and help texts of the KPG-56D (Field Programming Unit).

IF1 : 49.95MHz LOC : 50.4MHz

OP OP

SYSTEM SET-UP

Merchandise received

Choose the type of transceiver

Transceiver programming

Are you using the speaker microphone?

Delivery

Frequency range (MHz) RF power Type

TX/RX 136~150

TX/RX 146~174

A personal computer (IBM PC or compatible), programming interface (KPG-22), and programming software (KPG-56D) are required for programming. (The frequency, TX power HI/LOW, and signalling data are programmed for the transceiver.)

YES

KMC-17 or KMC-21

Speaker microphone

(Option)

5.0W

TK-260G (N)E2

TK-260G E TK-270G E

TK-260G (N)E,(N)T

TK-270G (N)E,(N)T

TK-260G/(N)/270G/(N)

OPERATING FEATURES

1. Operation Features

• TK-260G

Channel selector

Rotate to select a channel (1 ~ 8).

Antenna LED indicator

Lights red while transmitting. Lights green while receiving. Flashes orange while receiving a 2-Tone or DTMF signal that matches the one set up in your transceiver. Flashes red when the battery power is low while transmitting.

PTT (Push-toTalk) switch

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

Side 1 key

Press to activate its programmable function.

Side 2 key

Press to activate its programmable function.

Programmable Auxiliary Functions Side 1 key and Side 2 key can each be programmed

with one of the following auxiliary functions:

• Monitor A (Monitor Unmute–Momentary): Press and hold the Monitor key to hear background noise. Release the key to return to normal operation.

• Monitor B (Monitor Unmute–Toggle): Momentarily press the Monitor key to hear background noise. Press the key again to return to normal operation.

• Monitor C (Carrier Squelch–Momentary): Press and hold the Monitor key to deactivate QT, DQT, 2-Tone, or DTMF signalling. Release the key to return to normal operation.

• Monitor D (Carrier Squelch–Toggle): Momentarily press the Monitor key to deactivate QT, DQT, 2-Tone, or DTMF signalling. Press the key again to return to normal operation.

• None: No function.

• RF Power Lo: Press the RF Power Lo key to toggle the output power of a channel between high and low. This can only be used for channels that have been programmed with high power. Pressing RF Power Lo while using a channel programmed with low power

Power switch/ Volume control

Tur n clockwise to switch ON the transceiver. Rotate to adjust the volume. To switch OFF the transceiver, turn counterclockwise fully.

Microphone

Speaker

SP/MIC jacks

Connect an optional speaker/ microphone here.

The transceiver is shown with the optional KNB-14 battery pack.

causes an error tone to sound. (When changing a channel from high to low power, all channels programmed with high power are changed to low.)

• 2-Tone Encode Select: To transmit using a 2-Tone code, press the PTT switch and the 2-Tone Encode Select key, then speak into the microphone in your normal voice. Release the PTT switch and 2-Tone Encode Select key to receive.

• TK-270G

Antenna

Speaker

tt yy

yy uu

The transceiver is shown with the optional KNB-14 battery pack.

q Rotary encoder

Microphone

A321 B654 C987 D

!0!0

Your dealer can program the encoder as either Group Up/Down or Channel Up/Down (default setting). Rotate to select a group or channel. Also rotate to adjust the squelch in Squelch Adjustment mode.

w LED indicator

Lights red while transmitting. Lights green while receiving. Flashes orange while receiving a Code Squelch or a Selective Call code, or a 2-Tone or DTMF signal that matches the one set up in your transceiver. Flashes red when the battery power is low while transmitting.

e Power switch/ Volume control

Turn clockwise to switch ON the transceiver. Rotate to adjust the volume. To switch OFF the transceiver, turn counterclockwise fully.

r PTT (Push-to-Talk) switch

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

t Side 1 key

This is a PF (Programmable Function) key. Press it to activate its auxiliary function (page 4).

y Side 2 key

This is a PF (Programmable Function) key. Press it to activate its auxiliary function (page 4).

TK-260G/(N)/270G/(N)

OPERATING FEATURES

, •,

3 keys

These are PF (Programmable Function) keys. Press each key to activate its auxiliary function.

i DTMF keypad

Used for storing and transmitting DTMF numbers.

o SP/MIC jacks

Connect an optional speaker/ microphone here.

!0!0

!0 Display

!0!0

(See page 5.)

Note: The PF keys are programmed with default functions:

•

Side 1 key: Lamp

•

Side 2 key: Monitor A

•

key: Scan

•

key: Scan Del/Add

•

key: Talk Around

•

key: RF Power Lo

Programmable Auxiliary Functions Side 1, Side 2, °, •,

2, and

3 can be programmed

with the auxiliary functions listed below.

• Channel Down

• Channel Up

• Display Character

• Group Down

• Group Up

• Home Channel

• Key Lock

• Lamp

• Monitor A (Monitor Unmute–Momentary)

• Monitor B (Monitor Unmute–Toggle)

• Monitor C (Carrier Squelch–Momentary)

• Monitor D (Carrier Squelch–Toggle)

• None

• Redial

• RF Power Lo

• Scan

• Scan Del/Add

• Talk-Around

• 2-Tone Encode Select

2. Programmable keys

The functions the FPU programs to the function keys are

described in the following sections.

1) Channel up/down (TK-270G only)

When the key is pressed each time, the channel number to be selected is incremented/decremented and repeats if held for one second or longer.

2) Display character (TK-270G only)

This key switches the LCD display between the group/ channel number and group/channel name.

3) Group up/down (TK-270G only)

When the key is pressed each time, the group number to be selected is incremented/decremented and repeats if held for one second or longer.

4) Home Channel (TK-270G only)

Press this key once, the channel switches to the preprogrammed home channel.

5) Key lock (TK-270G only)

When the KEY LOCK switch is held down for one second or more, keys other than [PTT], [Side1], [Side2], [VOL], [POWER], and KEY LOCK are locked. When 12/16 KEY LOCK is set with the FPU, the DTMF key is locked and when front-panel KEY LOCK is set, the DTMF key and the [PF] key are locked.

6) Lamp (TK-270G only)

This key illuminates the LCD and keys on the front panel. When the key is pressed, the LED lamp goes on. When it is released, the lamp goes off after about five seconds. If any key is pressed while the LED lamp is on, the lamp is kept on for five seconds.

7) Monitor

Used to release signalling or squelch when operating in conventional mode. It is also used to reset option signalling.

8) 2-Tone Encode Select (TK-270G only)

1 Press the key programmed as 2-tone Encode Select.

• A pre-programmed 2-tone code name appears on the

display.

2 Press the key programmed as Rotary encoder to select

you desired 2-tone code name.

3 Press PTT switch and 2-Tone Encode Select key to transmit

and release them to receive.

9) Redial (TK-270G only)

Pressing this key when Group/Channel is shown, displays the previously transmitted DTMF code. Pressing [PTT] at this time, transmits the code that is currently displayed.

TK-260G/(N)/270G/(N)

OPERATING FEATURES

10) RF power low

Used to temporarily switch transmission output to low power. Turning the function on enables:

Hi→Low, Low→Low Key states are backed up, except in the PC mode when they are reset.

11) Scan (TK-270G only)

Pressing this key starts scanning. Pressing this key again stops scanning.

12) Scan Del/Add (TK-270G only)

This key switches the currently displayed channel between "Delete" and "Add". The "Add" channel is contained in the scan sequence, the "Delete" channel is not contained. In the scan mode, this key switches the channel between delete or add, temporarily.

13) Talk Around (TK-270G only)

Press this key, the transceiver uses the receive frequency and tone for transmission. The operator can call the other party directly (without repeater). Press this key again, the talk around function goes off.

14) None

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

3. Display (TK-270G only)

Icon Description

Not used on this transceiver. Appears when the selected channel is

busy. Appears when QT, DQT, DTFM, or 2Tone decoding is deactivated (by pressing the Monitor key). Appears when you receive a Code Squelch, Selective Call, 2-Tone, or DTMF Signalling call. Also appears when you transmit using Code Squelch or Selective Call.

Appears while scanning. Appears when using low power on the

selected channel. Appears when the selected channel is included in the scanning sequence. Displays the selected channel, the squelch level, DTMF digits (when entering digits, confirming digits, or making a call), and messages received via Selective Call.

4. Scan Operating (TK-270G only)

1) Scan types

●

Single Group Scan

You can scan all valid (ADD) channels in the displayed group

that can be selected with the group selector.

●

Multiple Group Scan

You can scan all valid (ADD) channels in all valid (ADD)

groups.

2) Scan Start Condition

One or more non-priority 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 function, scan starts. The scan icon ("SCN") lights and "SCAN" is indicated on display.

TK-260G/(N)/270G/(N)

OPERATING FEATURES

3) Scan Stop Condition

The scan stops temporarily if the following conditions are satisfied. 1 The receiving signal matches the signalling code in your

radio that is set by the programming software (KPG-56D).

2 When the Monitor key is depressed.

4) Scan Channel Types

1 Priority channel is the most important channel for scan,

and always detects a signal during scan and when the scan stops temporarily.

2 Non-priority channels detect a signal during scan. For the

channels that can be selected with the group or channel selector when the scan does not occur, the "A" icon lights.

5) Priority Channel Setting

A priority channel can be set as follows with the programming software (KPG-56D).

1 Specify a priority channel as a fixed priority channel. 2 Make a selected channel a priority channel.

Specify the initial channel before the operator changes it.

6) Scan Type According to the Priority Channel

1 When no priority channel is set : Only the non-priority

channels are scanned.

If a non-priority channel stops temporarily, it stops until

there is no signal on the channel.

2 When priority channel is set : Either priority channel is

scanned.

If a non-priority channel stops temporarily, a priority channel

signal is detected at certain intervals.

If a priority channel stops temporarily, it stops until there is

no signal on the priority channel.

6 Selected with talkback

The transceiver reverts to the channel before scanning or

the channel that you changed during scan.

8) Scan End

When you reactivate the key programmed to the scan

function during scan mode, scan ends.

The scan icon ("SCN") and "SCAN" or revert channel

(programmable) display goes off.

9) Temporarily Delete/Add

It is possible to delete or add a channel temporarily during scan. When scan stops on an unnecessary channel, for example by interference of the other party, press the delete/ add key, then that channel is deleted temporarily and scan will re-start immediately.

When you would like to add a deleted channel temporarily to the scan sequence, select the desired (deleted) channel during scan, and press the delete/add key before scan re-starts.

That channel is added temporarily to the scan sequence. The temporarily deleted or added channels are returned to their pre-set delete/add conditions when the transceiver exits from scan mode.

5. Details of Features

1) Time-out timer

The time-out timer can be programmed in 15 seconds increments from 15 seconds to 300. If the transmitter is keyed continuously for longer than the programmed time, the transmitter is disabled and a warning tone sounds while the PTT button is held down. The alert tone stops when the PTT button is released.

7) Revert Channel

The revert channel is used to transmit during scanning and set by the programming software (KPG-56D). 1 Priority

The transceiver reverts to the priority channel.

2 Priority with talkback

The transceiver reverts to the priority channel.

If you press PTT during a resume timer (dropout delay time, TX dwell time) or calling, you can transmit on the current channel to answer to the call however revert channel is set to priority channel.

After resume time, scan re-starts and the transmission channel returns to the priority channel.

3 Selected channel

The transceiver reverts to the channel before scanning or the channel that you changed during scan.

4 Last called channel

The transceiver reverts to the last called channel during scan.

5 Last used channel

The transceiver reverts to the last used (transmitted) channel during scan. "Last used" revert channel includes

talkback function.

2) Selective Call Alert LED

You can select whether or not the LED on the transceiver

flashes orange when selective call has occurred.

3) PTT ID

PTT ID provides a DTMF ANI to be sent with the PTT button every time it is used (Begin of TX ID at beginning of transmission, End of TX ID at end of transmission, or both).

You can program the PTT ID as one of the followings.

Off, BOT (Begin of TX ID), EOT (End of PTT ID), BOTH.

The contents of ID are programmed for each channel.

The transceiver is capable of having ID. The format is DTMF.

The timing that the transceiver sends the ID is programmable.

Begin of TX ID (BOT) : Begin of TX ID is sent at the

beginning of transmission.

End of TX ID (EOT) : End of TX ID is sent at the end of

transmission.

Both : Begin of TX ID is sent at the beginning of transmission

and End of TX ID is sent at the end of transmission.

There is also a "PTT ID" setting for each channel.

TK-260G/(N)/270G/(N)

OPERATING FEATURES

4) Battery Warning

This transceiver has a battery warning feature. If low voltage is detected during transmission, the transceiver warns you by a flashing red "LED".

When the voltage is detected to be even lower during transmission, the transceiver stops transmission and warns you by a flashing red "LED" and a beep.

Please notice "indication" for the battery exchange, charging time by flashing red LED and beep.

5) "TOT" Pre-Alert

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

"TOT" will expire when the selected time passes from the TOT pre-alert tone.

6) "TOT" Re-Key Time

The transceiver has a "TOT" re-key timer. This timer is the time you cannot transmit after the "TOT" is exceeded. After the "TOT" re-key time expires you can transmit again.

7) "TOT" Reset Time

The transceiver has a "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 the PTT is released, unless the "TOT" reset timer has expired.

6. Option Signalling (DTMF/2 tone)

Built-in DTMF decoder is available for option signalling. Built-in 2-Tone decoder is available for option signalling.

It is possible to use individual call, group call, DBD (Dead

Beat Disable). Note : DBD is only DTMF

Preset operation is triggered when there is a match with

Option Signaling.

When Option Signaling matches on a Group Channel where it is set to Yes, the Option Signaling display flashes and Option Signaling is canceled. Settings after this will cause "Transpond" or "Alert" to sound.

Setting the Selective Call Alert LED will cause the LED to start flashing orange.

Mute or Unmute is triggered by the ID/QT/DQT/Carrier when option signaling matches (when Option Signal is deactivated by a transmission).

AND/OR

Option Signaling match conditions can be selected with AND/OR logic.

Alert/Transpond AF Mute Open

AND

Triggers at match with QT/ Triggers at match with QT/ DQT/ID+DTMF(2tone);Opt

OR Triggers at match with

DTMF(2tone) ; Opt

DQT/ID+DTMF(2tone); Triggers only for match with QT/DQT/ID;Signaling

Opt

8) OST (Operator Selectable Tone) (TK-270G K types only)

The transceiver is capable of having the "OST" function

and 16 tone pairs (QT/DQT) with a max 10-digit name for each tone pair.

9) Clear to Transpond

The transceiver waits for an acknowledment signal until the

channel free.

This feature ensures the acknowledment signal is receive

by another party.

10) Battery Save

This is the automatic battery saver during standby mode

operation. The receiver circuit is turned on and off to conserve the battery life.

Even if set as OR, there is no Alert/Transpond just with

DTMF.

Even if set as OR, AF mute cannot be canceled just by a

match with DTMF.

In conventional channels not set with QT/DQT, signaling is

a match just by receiving the carrier.

Auto Reset

When Option Signaling matches on a Group channel where it is set to Yes, Option Signaling is canceled when it matches a group channel set to Yes.

After Option Signaling matches, Option Signaling can automatically Reset after a specified time.

Dead Beat Disable

When the D.B.D (Dead Beat Disable) code matches, a preset operation is performed.

When D.B.D matches on all group channels regardless of whether Option Signaling = Yes/No, then TX Inhibit or TX RX Inhibit is activated by the settings performed afterwards. D.B.D is canceled when the D.B.D. code + "#" is received.

Transpond is always activated when the D.B.D code matches. Alert is not output. An Option Signaling match is not displayed.

TK-260G/(N)/270G/(N)

OPERATING FEATURES / REALIGNMENT

7. Audible user feedback tones

The transceiver outputs various combinations of tones to notify the user of the transceiver operating state. The main tones are listed below

The high tone is 1477Hz, the mid tone is 941Hz, and the low tone is 770Hz.

• Power on tone

This tone is output when the transceiver is turned on. (The high tone is output for 500ms.)

• Alert tone

This tone is output when the transceiver is in TX inhibition for TOT, battery warning and PLL unlocked. It is output until the PTT button is released. (The 697Hz tone is output.)

• Busy Tone

This informs the user of a busy channel lock out

• Group Call Tone

The group call tone informs the user of a group call in DTMF/

2 Tone Option Signaling. This tone repeats 7 times.

770Hz 770Hz

30ms 30ms 30ms

• Individual Tone

Individual tone is issued on receiving selective call by DTMF/

2 Tone Option Signaling.

2000Hz 2000Hz 2000Hz

100ms 100ms 100ms 100ms 100ms

• Pre Alert tone

Informs the user when nearing transmit inhibit (transmit cutoff) time due to TOT.

The Pre Alert Tone is issued from the time set for TOT Pre Alert until the TOT triggers.

1633Hz 1633Hz 1633Hz

50ms 50ms 50ms 50ms 50ms

REALIGNMENT

1. Modes

User mode

Panel test mode

(TK-270G only)

PC mode

Firmware programming mode

Clone mode

Self programming mode (TK-270G only)

Mode Function

User mode For normal use. Panel test mode Used by the dealer to check the

Panel tuning mode Used by the dealer to tune the radio. PC mode Used for communication between the

Data programming Used to read and write frequency data mode PC test mode Used to check the radio using the PC.

Firmware program- Used when changing the main ming mode program of the flash memory. Clone mode Used to transfer programming data

Self programming Frequency, signalling and features. mode

Panel tuning mode

Data programming mode

PC test mode

Checksum

fundamental characteristics.

radio and PC (IBM compatible).

and other features to and from the radio.

This feature is included in the FPU. See panel tuning.

from one radio to another.

PC tuning mode

2. How to Enter Each Mode

Mode Operation

User mode Power ON Panel test mode

PC mode Received commands from PC Panel tuning mode [Panel test mode]+[°] Firmware programming mode

Clone mode [Side1]+[3]+Power ON

Self programming mode [Side1]+[

[2]+Power ON (Two seconds) (TK-270G only)

[Side1]+[Side2]+Power ON (Two seconds)

(Two seconds)

]+Power ON

(Two seconds) (TK-270G only)

•

3. For the panel Test Mode (TK-270G only)

For the setting method, refer to ADJUSTMENT.

3-1. For the panel Tuning Mode

For the setting method, refer to ADJUSTMENT.

TK-260G/(N)/270G/(N)

REALIGNMENT

4. Checksum

Executing this function, "TUNING" appears on the display

of TK-270G while calculating the checksum .

When the calculation is completed, the display returns to

normal and PC displays the checksum of the radio.

5. PC Mode

5-1. Preface

The TK-260G/270G transceiver is programmed using a personal computer, a programming interface (KPG-22) and programming software (KPG-56D).

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

5-2. Connection procedure

1. Connect the TK-260G/270G 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 blinks. When data is received by the transceiver, the green LED blinks.

IBM-PC

Notes:

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

• Change the TK-260G/270G to PC mode, then attach the interface cable.

5-3. KPG-22 description

(PC programming interface cable: Option)

The KPG-22 is required to interface the TK-260G/270G 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-22 connects the SP/MIC connector of the TK260G/270G to the computers RS-232C serial port.

5-4. Programming software description

The KPG-56D programming disk is supplied in 3-1/2” disk format. The software on this disk allows a user to program the TK260G/270G radios via a programming interface cable (KPG-22).

5-5. Programming with IBM PC

If data is transferred to the transceiver from an IBM PC with the KPG-56D, the destination data (basic radio information) for each set can be modified. Normally, it is not necessary to modify the destination data because their values are determined automatically when the frequency range (frequency type) is set.

The values should be modified only if necessary. Data can be programmed into the flash memory in RS-232C format via the universal connector.

KPG-56D installation manual part No. : B62-1153-XX

KPG-22

KPG-56D

RF Power meter or SSG

6. Firmware Programming Mode

6-1. Preface

Flash memory is mounted on the TK-260G/270G. This allows the TK-260G/270G to be upgraded when new features are released in the future. (For details on how to obtain the firmware, contact Customer Service.)

6-2. Connection procedure

Connect the TK-260G/270G to the personal computer (IBM PC or compatible) with the interface cable (KPG-22). (Connection is the same as in the PC Mode.)

}

MIC

}

Tuning cable (E30-3216-05)

Gray Gray/Black

1.5D-XV Lead wire Gray-XV Shield wire

Fig. 1

6-3. Programming

1. Start up the programming software (KPG-56D), select "firmware program" in the "Program" item, and press the Return key on your personal computer. This starts up the firmware programmer.

2. The top screen is displayed. Press any key to advance to the next screen.

3. Set the communications speed (normally, 57600 bps) and communications port in the Setup item.

4. Set the firmware to be updated by File select (=F1).

5. Hold down the [Side1] and [Side2] switches on the TK-260G/ 270G, and press the power switch. When the [Side1] and [Side2] switches are held down for two seconds, "PROG576" appears on the display and the LED lights orange. When "PROG576" is displayed, release the switches (TK-270G only).

TK-260G/(N)/270G/(N)

REALIGNMENT

6. Check the connection between the TK-260G/270G and the personal computer, and make sure the TK-260G/270G is in Program mode.

7. Press F10 on the personal computer. A window opens on the display to indicate the writing progress. When the TK260G/270G begins to receive data, the LED lights green.

8. When data is received successfully, a checksum appears on the display.

(Since the TK-260G does not have a display, check the checksum with the FPU (KPG-56D).)

9. If you want to continue programming other TK-260G/ 270Gs, repeat steps 5 to 8.

Notes:

●

To start the Firmware Programmer from KPG-56D, the Fpro path must be set up by the KPG-56D Setup.

●

This mode cannot be entered if the Firmware Programming mode is set to Disable in the Programming software (KPG-56D).

7. Clone Mode

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

●

When programming the firmware, it is recommend to copy the data from the floppy disk to your hard disk before you update the radio firmware. Directly copying from the floppy disk to the radio may not work because the access speed is too slow.

6-4. Function

1. If you press the [Side2] switch while "PROGXXX" is displayed, the checksum is displayed. If you press the [Side2] switch again (while the checksum is displayed), "PROGXXX" is redisplayed.

2. A transmission speed can be selected by pressing the [Side1] switch while "PROGXXX" is displayed.

19200 bps: The LED flashes green and red alternately. 38400 bps: The LED flashes orange. 57600 bps: The LED lights orange.

Note:

Normally, write in the high-speed mode.

1. Turn the master TK-270G power ON with the [Side1]+[3] keys held down. The TK-270G displays "

2. Power on the slave TK-260G/270G.

3. Connect the cloning cable to the SP/MIC connectors on the master and slave.

4. Press the [ "

CLONE ". The data of the master is sent to the slave. While the slave is receiving the data, "-PC-" is displayed. When cloning of data is completed, the master displays "END", and the slave automatically operates in the User mode. The slave can then be operated by the same program as the master.

Slave TK-260G TK-260G TK-260G TK-726G TK-760G

Master

TK-270G

(N)E

TK-270G

(N)T

] key on the master while the master displays

E (N)E (N)T E (N)E

TK-270G TK-270G TK-270G TK-726G

E (N)E (N)T (N)E

OK N/A N/A OK N/A

N/A OK N/A N/A OK

N/A N/A OK N/A N/A

CLONE ".

5. The other slave can be continuously cloned. When the [

Note: Use the new cloning cable for TK-260G/270G.

Note: You can clone the programmed data between the

key on the master is pressed while the master displays "END", and the slave the master displays " Carry out the operation in steps 2 to 4.

You cannot use the old cloning cable for TK-260/270.

transceiver listed below. Frequency version must be same. Cloning cable parts No.

E30-3410-05 (TK-270G→TK-260G/270G) E30-3411-05 (TK-270G→TK-760G/762G)

CLONE ".

]

REALIGNMENT

PTT/RXD

8. Self Programming Mode (TK-270G only)

Write mode for frequency data and signalling etc. Mainly

used by the person maintaining the user equipment.

8.1 Self programming mode setting

Remove D17 from the TX-RX unit (Figure 3) (K, E, (N)E, K2 models only). Hold down the [Side1]+[●] switches and turn the power switch on. When the self programming mode is entered, [SELF] appears on the display. The mode changes automatically to Model Select Mode and "PORTABLE" is displayed in about one second.

GND REMOTE/TXD

2.5

Cloning cable

Fig. 2

TK-260G/(N)/270G/(N)

MBL PSB GND

PTT/RXD ME MIC REMOTE/TXD CM

PTT/RXD

GND REMOTE/TXD

X57-587X Compoent Side

Note :

This mode (self programming mode) cannot be set when it

has been disabled with the FPU.

Note :

Self programming is disabled if "a Trunking Board is installed

in this Radio" is selected in the FPU.

●

Flow Chart

Radio type Portable Mobile

[2]

Radio Band & Channel Type

VHF 8CH

[CH]

M models only M models only

VHF 16CH

[2]

Frequency Version

[3]

Self programming mode

Channel set mode

[2]

[Side2]

VHF F1

[Side1]

Function set mode

VHF F2 UHF F1 UHF F3

[CH][CH]

Note :

IF the radio type of TK-270G was temporally set to "Mobile" for the cloning purposes, "UNPROG" is displayed (at User Mode) when the TK-270G is turned on.

D17

Fig. 3

[CH]

VHF 128CH UHF 16CH UHF 128CH

[CH][CH]

UHF F2

[CH]

In this case, please set the radio type back to "Portable" at

Model Select Mode menu.

[CH] [CH]

UHF 8CH

[CH]

UHF F4

[CH]

Frequency version selection that matches Radio Band and Channel Type appears.

TK-260G/(N)/270G/(N)

REALIGNMENT

8-2. Channel Setting Mode

This is a mode for making channel settings with the panel

keys without using the FPU.

Pressing [Side2] when "SELF" is displayed, sets Channel Setting Mode. Select an item set using [3] then change the selection with the encoder. The data displayed using [2] is stored in the memory and then proceeds to the next item. Pressing [3] proceeds to the next item without storing it in the memory. Press [Side2] to set the display to "SELF" and return to reset (default) status. All channel data is cleared when pressing [2] key with the blank RX frequency.

No. Function Choices Display Remarks

Select Channel Select Group

RX frequency

Rx Signaling

TX frequency

TX Signaling

Option Signaling OFF

6ID

1-128 1-128 Step 2.5kHz-1MHz

Blank

100.0000-

550.0000MHz 50Hz digit (On=5; Off=0). OFF ————[Side1 QT 67.0-250.3Hz (EIA Mode) QT 67.0-250.3Hz (0.1Hz Step Mode) DQT 000-777 (Normal) (1 Step Mode) DQT 023-754 (Normal) (Standard Table Mode) DQT 000-777 (Inverse) (1 Step Mode) DQT 023-754 (Inverse) (Standard Table Mode) Step 2.5kHz-1MHz

Blank

100.0000-

550.0000MHz

DTMF 2-TONE 0009999999999 (about 0.5 seconds)

Blank ————

_1-_1._ _1-128._ _1.-_1_

128.-_1_ STP_250 STP_1000

R. R.100.0000

QT_67.0_ QT_250.3_ QT_67.0* QT_250.3* DQT000N* DQT777N* DQT023N DQT754N DQT000I* DQT777I* DQT023I DQT754I STP_250 STP_1000 T. T.100.0000

Same as RX signaling. NONE____ Default DTMF____ 2TONE___ ___ID___

12345678 ——987 Display when a code is input

[3] : Group selection/ Channel selection change

Display when an item is selected or when a step is changed (about 0.5 seconds) [•] Step change VHF : 2.5, 5.0,6.25,7.5kHz,1MHz,Step

————

[Side1] : Freq On/Blank switching The rightmost dot indicates

] : Off/QT/DQT switching [•] : Mode switching [°] : Normal/Inverse

switching

Same as RX frequency.

————

Display when an item is selected Display of the current setting

(If it is 8 or more digits, scroll it.) (Input it with DTMF key.)

[Side1] : Data clear

No. Function Choices Display Remarks

Busy Channel Lockout

Beat shift

RF Power

Wide/Narrow Wide 5K Wide -W5K E destination only

Wide 4K Semi wide -W4K

Scan Delete/ADD

Priority Channel

Home Channel

Compander

PTT ID

Begin of TX ID

END of TX ID

NO Type 1 Type 2 No Yes High Power Low Power Wide NARROW

DELETE ADD No Yes No Yes No Yes OFF Begin of TX End of TX Both 0009999999999999999

Blank 0009999999999999999

Blank ————[Side1

BCL_NO__ BCL_1___ BCL_2___ SHFT_NO_ SHFT_YES PWR_H___ PWR_L___ WIDE__ NARROW__

SCAN_DEL SCAN_ADD P.CH_NO__ Not used when (Scan) P.CH_YES_ H.CH_NO__ H.CH_YES_ COMP_NO_ COMP_YES P.ID_OFF P.ID_1 P.ID_2 P.ID_3 _BOT_ID_

12345678 ——987 ————

_EOT_ID_

12345678 ——987

Default BCL_YES for K, E, (N)E, K2 type N/A for K

K, K2, M, M2 destination only

Not used for TK-260G

Not used when Home Channel is not set in Key Assignment. Not used when Wide is

Not valid if Dial ID =Disable and PTT ID=OFF, or EOT is set. Display when an item is selected (about 0.5 seconds) 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.) [Side1] : Data clear Not valid if Dial ID =Disable and PTT ID=OFF, or EOT is set. Display when an item is selected (about 0.5 seconds) 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.)

Default

] : Data clear

, E, (N)E, K2

type

Priority is not Fixed.

selected.

●

Flow Chart

Channel Setting Mode

Self programming mode

TK-260G/(N)/270G/(N)

REALIGNMENT

8-3. Function Setting Mode

This is a mode for using the panel keys to make function

settings without using the FPU, that operate on all channels.

PTT ID

[Side2]

[2]

[

Side1

[2]/[3]

[

Side1

[2]/[3]

Side1

[

[2]/[3]

Side1

[

[2]/[3]

[

Side1

[2]/[3]

Not used when (Scan) Priority is not Fixed.

[2]/[3]

Not used when Home Channel is not set in key Assignment.

[2]/[3]

[

Side1

[2]/[3]

[

Side1

[2]/[3]

Channel Delete

OFF

]

OFF

]

[Side1]

OFF

]

OFF QT DQT N DQT I

]

[Side1]

Data clear

]

Not valid if Dial ID=Disable

Data clear

]

and PTT ID=off, or EOT is set.

Not valid if Dial ID=Disable

Data clear

and PTT ID=off, or BOT is set.

[Side2]

Channel set mode Channel selection

RX frequency

RX signaling

TX freguency

TX signaling

option signaling

Busy channel lockout

Best Shift yes/no

RF Power High/Low

Wide/Narrow

Scan delete/add

Priority channel

Home channel

Compander yes/no Not used when Wide is selected.

Begin of TX ID

End of TX ID

Group selection

[3]

[

Side1

]

QT DQT N DQT I

[Side1]

Side1

[

[ ]

]

[ ]

Pressing the [Side1] when "SELF" is displayed, sets the Function Setting Mode. Select an item set using [3] then change the selection with the encoder. The data displayed using [2] is stored in the memory and then proceeds to the next item. Pressing [3] proceeds to the next item without storing it in the memory. Press [Side1] to display "SELF" and return to reset (default) status.

Function Setting Mode

No.

Function Choices Display Remarks

Function Key

[Side1]

No Function Talk Around

LAMP_OFF Default(TK-260G) LAMP_3

* TK-260G cannot be selected.

K, M, E destination only Display Character Home Channel Channel Down Channel Up LAMP_9 Keylock LAMP_10

LAMP_5 LAMP_7 LAMP_8

* TK-260G cannot be selected.

* TK-260G cannot be selected. Lamp LAMP_11 Default(TK-270G)

* TK-260G cannot be selected. 2-Tone Encode

LAMP_16 Select Monitor A LAMP_17 Monitor B LAMP_18 Monitor C LAMP_19 Monitor D LAMP_20

[Side2]

RF Power Low Scan LAMP_22 Scan DEL/ADD Group Down Group Up LAMP_25 Redial No Function MON_OFF Talk Around MON_3 Display Character Home Channel Channel Down Channel Up MON_9 Keylock MON_10 Lamp MON_11 * 2-Tone Encode

LAMP_21

LAMP_23

LAMP_24

LAMP_28

MON_5

MON_7

MON_8

MON_16

* TK-260G cannot be selected. * TK-260G cannot be selected. * TK-260G cannot be selected. * TK-260G cannot be selected. * TK-260G cannot be selected.

* TK-260G cannot be selected. * TK-260G cannot be selected. * TK-260G cannot be selected. * TK-260G cannot be selected. * TK-260G cannot be selected. * TK-260G cannot be selected.

TK-260G cannot be selected.

Select Monitor A MON_17 Default Monitor B MON_18

TK-260G/(N)/270G/(N)

REALIGNMENT

No.

Function Choices Display Remarks

[Side2]

[°] only Talk Around KEY1_3

[•] only

Monitor C MON_19 Monitor D MON_20 RF Power Low Scan MON_22 Scan DEL/ADD Group Down Group Up MON_25 Redial

TK-270G

No Function KEY1_OFF

Display Character Home Channel Channel Down Channel Up KEY1_9 Keylock KEY1_10 Lamp KEY1_11 2-Tone Encode Select Monitor A KEY1_17 Monitor B KEY1_18 Monitor C KEY1_19 Monitor D KEY1_20 RF Power Low Scan KEY1_22 Scan DEL/ADD Group Down Group Up KEY1_25 Redial

TK-270G

No Function KEY2_OFF Talk Around KEY2_3 Display Character Home Channel Channel Down Channel Up KEY2_9 Keylock KEY2_10 Lamp KEY2_11 2-Tone Encode Select Monitor A KEY2_17 Monitor B KEY2_18 Monitor C KEY2_19 Monitor D KEY2_20 RF Power Low Scan KEY2_22 Scan DEL/ADD Group Down Group Up KEY2_25 Redial

MON_21

MON_23 MON_24

MON_28

KEY1_5 KEY1_7 KEY1_8

KEY1_16

KEY1_21

KEY1_23 KEY1_24

KEY1_28

KEY2_5 KEY2_7 KEY2_8

KEY2_16

KEY2_21

KEY2_23 KEY2_24

KEY2_28

* TK-260G cannot be selected. * TK-260G cannot be selected. * TK-260G cannot be selected. * TK-260G cannot be selected. * TK-260G cannot be selected.

Default

No.

10 11

Function Choices Display Remarks

5[2]TK-270G

only Talk Around KEY3_3

[3] only Talk Around KEY4_3

7 [CH]

Power On Tone

Control Tone Warning Tone Time Out Timer

No Function KEY3_OFF

Display Character Home Channel Channel Down Channel Up KEY3_9 Keylock KEY3_10 Lamp KEY3_11 2-Tone Encode Select Monitor A KEY3_17 Monitor B KEY3_18 Monitor C KEY3_19 Monitor D KEY3_20 RF Power Low Scan KEY3_22 Scan DEL/ADD Group Down Group Up KEY3_25 Redial

TK-270G

No Function KEY4_OFF

Display Character Home Channel Channel Down Channel Up KEY4_9 Keylock KEY4_10 Lamp KEY4_11 2-Tone Encode Select Monitor A KEY4_17 Monitor B KEY4_18 Monitor C KEY4_19 Monitor D KEY4_20 RF Power Low Scan KEY4_22 Scan DEL/ADD Group Down Group Up KEY4_25 Redial Channel Up/Down Group Up/Down No Function

YES/NO PONT_YES Default:YES YES/NO CNTT_YES Default:YES YES/NO OFF,15-300/15s Step

KEY3_5 KEY3_7 KEY3_8

KEY3_16

KEY3_21 Default

KEY3_23 KEY3_24

KEY3_28

KEY4_5 KEY4_7 KEY4_8

KEY4_16

KEY4_21 Default

KEY4_23 KEY4_24

KEY4_28 CH_UP/DN Default GR_UP/DN KNOB_OFF

Optional Feature

WART_YES TOT_60 Default:60s

Default

Default:YES

No.

Function Choices Display Remarks

TOT Pre-Alert Time TOT

Rekey Time TOT OFF1-15/

Reset Time

Clear to Transpond (BCL for Transpond)

Battery Save

17 Signaling OR SIG__OR Default

Squelch Level

19 Priority None PRI_NONE Default

Lock Back

Time A Lock Back

Time B

Revert Channel

Dropout Delay Time

Dwell Time

Digit Time

Inter Digit Time

First Digit Time

First Digit Delay

Rise Time with QT

30 DIAL ID Enable DID_ENA

No.of DTMF Key

DTMF Hold Time

Store and Send

D Key Assignment

DTMF Signaling Inter Mediate

Code

OFF,1-10/ 1s Step OFF1-60/ 1s Step

1s Step YES CTT_YES NO CTT_NO Default ON BATT_ON Default OFF BATT_OFF

AND SIG_AND 0-9/1 Step SQL__5 Default;5

Fixed PRI_FIX_ Selected PRI_SEL_

0.5-5.0/0.05 LBA_500 Default:500ms Cannot be

0.5-5.0/0.05 LBB_2000 Default:2000ms Cannot

Selected REV_SEL Last Called REV_L/C_ Default Last Used REV_L/U_ Selected + Talk Back Priority REV_PRI_ Priority + Talk Back 0-300/1s DODT___3 Default;3s

0-300/1s DWL___3 Default;3s

50-200/10ms 50-

200/10msIDT___50 Default;50ms 50-200/10ms 100-1000/50ms 100-1000/50ms

Disable DID_DIS 12Key NODK_12 Default 16Key NODK_16 ON DHT__ON Default OFF DHT__OFF Enable SAS__ENA Disable D Code 1-16/1s DKA_16__ Code SQ SEL CALL DTMS_SEL TK-270G only 0-9,A-D,*,# IMC__#_

TOTP_PFF

TOTK_OFF

TOTS_OFF

REV_S/T_

REV_P/T_

DTMF

DIGT__50 Default;50ms

FDT___50 Default;50ms RIST_100 Default;100ms RTWQ_100

SAS__DIS DKA_D_CD Default

DTMS_CSQ Default

Cannot be set when TOT is OFF. Default:OFF Cannot be set when TOT is OFF. Default:OFF Cannot be set when TOT is OFF. Default:OFF

set when Priority = none.

be set when Priority = none

Default;100ms

Default

Default: # (Can be set only when DTMF signaling = SEL CALL.)

TK-260G/(N)/270G/(N)

REALIGNMENT

No.

Function Choices Display Remarks

Group Code

38 Auto Rest OFF ART_OFF_

Time 1-15/1s ART__10 Default;10s

Call Alert/ Transpond

Panel Test/panel Tuning MODE

A-D,*,#

OFF CA/T_OFF Default Call Alert CA/T_C/A Transpond CA/T_T/A (Call Alert) Transpond CA/T_T/I (ID Code) Transpond CA/T_T/T (tanspond Code)

Enable PTM_ENA Default (Not used for TK-260G) Disable PTM_DIS

GPCD_OFF_

Others

Default;OFF

TK-260G/(N)/270G/(N)

REALIGNMENT

8-4. Memory Reset Mode

This mode is used to clear data for functions that can be set

in Self Programming Mode or to return to reset values (default).

Pressing [

"CANCEL".

Turning the encoder alternately switches the display

between "CANCEL" "READY".

Pressing [

sets the display to "CLEAR".

Pressing [ Pressing [

to "SELF" without resetting the data.

When the memory is reset, mode data and model data are not reset. The TK-260G cannot reset the memory.

] when "SELF" is shown, sets the display to

] when "READY" is shown, clears the data and

] again, returns the display to "SELF".

] when "CANCEL" is shown, returns the display

●

Flow Chart

Function Setting Mode

[Side1]

Self programming mode

[Side1]

Function set mode

[Side1] key function

[2]/[3]

[MON] key function

[2]/[3]

[ ] key function

[2]/[3]

[ ] key function

[2]/[3]

[2]

key function

[2]/[3]

[3]

key function

[2]/[3]

[CH]

key function

[2]/[3]

Power on tone yes/no

[Side1]

Squelch level

[2]/[3]

Priority

[2]/[3]

Look back time A

[2]/[3]

Look back time B

[2]/[3]

Revert channel

[2]/[3]

Dropout delay time

[2]/[3]

Dwell time

[2]/[3]

Digit time

[2]/[3]

Inter digit time

[2]/[3]

First digit time

[Side1]

Group code

Auto reset time

Call alert/Transpond

Panel test/Panel tuning

mode

[2]/[3]

[Side1]

Contorol tone yes/no

[Side1]

WArning tone yes/no

[Side1]

Time Out Timer

[Side1]

T.O.T. Pre-alert time

[Side1]

T.O.T. Rekey time

[Side1]

T.O.T. Reset time

[Side1]

Clear to Transpond

[Side1]

Battery Save on/off

[Side1]

Signaling

[2]/[3]

[Side1]

[2]/[3]

First digit delay

[2]/[3]

Rise time with QT

[2]/[3]

Dial ID

[2]/[3]

No. of DTMF key

[2]/[3]

DTMF hold time

[2]/[3]

Store & Send

[2]/[3]

D key assignment

[2]/[3]

DTMF signaling

[2]/[3]

Inter mediate code

[2]/[3]

TK-260G/(N)/270G/(N)

DISASSEMBLY FOR REPAIR

Separating the case assembly from the chassis.

1. Remove the two knobs z and three round units x.

2. Remove the two screws

3. Expand the right and left sides of the bottom of the case assembly, lift the chassis, and remove it from the case assembly

❸

❹

❸

TK-260G

❶

❷

stopper

TK-270G

❷

❶

❷

❶

❷

Separating the chassis from the unit.

• TK-260G

1. Remove the twelve small screws m, and the three large screws

2. Remove the solder from the antenna terminal using a soldering iron, then lift the unit off (X57).

• TK-270G

1. Remove the three screws ..

Lift the unit (X54), and rise up the connecter lever in the

arrow with your finger

Remove the three hexagonal bosses

twelve screws

Remove the solder from the antenna terminal using a

soldering iron, then lift the unit off (X57).

, and remove the

Ω

TK-270G

❾

X54-

❿

X57-

Antenna teminal

4. Taking cure not to cut the speaker lead and case assembly, and pull the speaker lead with connector n.

, open the chassis

CN3

TK-260G/270G E, (N)E only

❽

➐

X57-

❽

➐

Unsolder

➐

❽

➐

+ 39 hidden pages

Kenwood TK-260N, TK-260G, TK-270G, TK-270N Service Manual

Specifications and Main Features

Frequently Asked Questions

User Manual