tk 2302_service manual

. This product uses Lead Free solder.This product complies with the RoHS directive for the European market.

SERVICE MANUAL © 2008-9 PRINTED IN JA PANB51-8838-00 (N) 672

TK-2302/2302(V)TK-2306

VHF FM TRANSCEIVER

CONTENTS

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

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

REALIGNMENT ...........................................3

DISASSEMBLY FOR REPAIR ......................6

CIRCUIT DESCRIPTION ..............................9

SEMICONDUCTOR DATA .........................13

TERMINAL FUNCTION .............................13

COMPONENTS DESCRIPTION .................14

PARTS LIST ...............................................15

EXPLODED VIEW ......................................22

PACKING ....................................................23

ADJUSTMENT ..........................................25

PC BOARD

TX-RX UNIT (X57-7570-20) ...................30

SCHEMATIC DIAGRAM ............................34

BLOCK DIAGRAM .....................................38

LEVEL DIAGRAM ......................................40

SPECIFICATIONS ......................................41

Helical antenna(T90-1036-15)

Button knob (PTT)(K29-9425-03)

Button knob(Side1/Side2)(K29-9426-03)

Knob (Selector)(K29-9427-03)

Knob (Volume)(K29-9309-13)

Badge (Front)(B43-1622-04)

Plastic cabinet assy(A02-4040-03)

TK-2302/2302(V)/2306

2

Document Copyrights

Copyright 2008 by Kenwood Corporation. All rights re-served.

No part of this manual may be reproduced, translated, distributed, or transmitted in any form or by any means, electronic, mechanical, photocopying, recording, or other-wise, 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 er-rors or omissions. Neither is any liability assumed for dam-ages 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.

GENERAL

INTRODUCTION

SCOPE OF THIS MANUALThis manual is intended for use by experienced tech ni -

cians familiar with similar types of commercial grade com -mu ni ca tions equipment. It contains all required service in for ma tion for the equipment and is current as of the pub-lication date. Changes which may occur after publication are covered by either Service Bulletins or Manual Revisions. These are is sued as required.

ORDERING REPLACEMENT PARTS

When ordering replacement parts or equipment in for mation, the full part identifi cation number should be in clud ed. 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 suffi cient description of the re -quired component for proper identifi cation.

PERSONAL SAFETY

The following precautions are recommended for personal safety:

• DO NOT transmit until all RF connectors are verifi ed se -cure and any open connectors are properly terminated.

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

• This equipment should be serviced by a qualifi ed tech ni -cian only.

SERVICE

This transceiver is designed for easy servicing. Refer to the sche mat ic diagrams, printed circuit board views, and align ment procedures contained within.

Model Type TX-RX unitFrequency

rangeRemarks

TK-2302 K,P,M

X57-7570-20136~174MHz

IF1: 38.85MHzLOC: 38.4MHz

TK-2302(V) K

TK-2306 M

TK-2302/2302(V)/2306

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SYSTEM SET-UP

REALIGNMENT

1. Modes

User mode

Data programming mode

PC test mode PC tuning mode

PC mode

Wireless clone mode

Mode Function

User mode For normal use.

PC modeUsed for communication between the trans-ceiver and PC.

Data programming mode

Used to read and write frequency data and other features to and from the transceiver.

PC test modeUsed to check the transceiver using the PC. This feature is included in the FPU.

Wireless clone mode

Used to transfer programming data from one transceiver to another.

Choose the type of transceiver

Transceiver programming

Delivery

Merchandise received

Are you using the speaker microphone?

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

YES

NO

KMC-17, KMC-21 or KMC-45Speaker microphone

(Option)

Are you using the optional antenna?YES

NO

KRA-22 or KRA-26Optional antenna

TX/RX 136~174 5.0WTK-2302: K,P,MTK-2302(V): KTK-2306: M

Frequency range (MHz) RF power Type

2. How to Enter Each Mode

Mode Operation

User mode Power ON

PC mode Received commands from PC

Wireless clone mode [PTT]+[Side2]+Power ON (Two seconds)

3. PC Mode

3-1. PrefaceThe transceiver is programmed by using a personal com-

puter, a programming interface (KPG-22/22A, USB adapter (KCT-53U)) and FPU (programming software).

The programming software can be used with a PC or compatible. Figure 1 shows the setup of a PC for program-ming.

3-2. Connection Procedure1. Connect the transceiver to the personal computer with

the interface cable and USB adapter (when the interface cable is KPG-22A, the KCT-53U can be used).

TK-2302/2302(V)/2306

4

Notes:• You must install the KCT-53U driver in the computer to

use the USB adapter (KCT-53U).• When using the USB adapter (KCT-53U) for the fi rst time,

plug the KCT-53U into a USB port on the computer with the computer power ON.

2. When the POWER is switched on, user mode can be en-tered immediately. When the PC sends a command, the transceiver enters PC mode.

When data is read from the transceiver, the red LED lights.

When data is written to by the transceiver, the green LED lights.

Notes :• The data stored in the personal computer must match

Model Name and Model Type when it is written into EE-PROM.

• Do not press the [PTT] key during data transmission or reception.

3-3. KPG-22/KPG-22A Description

(PC programming interface cable : Option)The KPG-22/22A is required to interface the transceiver

with the computer. It has a circuit in its D-sub connector (KPG-22: 25-pin, KPG-22A: 9-pin) case that converts the RS-232C logic level to the TTL level.

The KPG-22/22A connects the SP/MIC connector of the transceiver to the RS-232C serial port of the computer.

3-4. KCT-53U Description (USB adapter : Option)The KCT-53U is a cable which connects the KPG-22A to a

USB port on a computer.When using the KCT-53U, install the supplied CD-ROM

(with driver software) in the computer. The KCT-53U driver runs under Windows 2000 or XP.

3-5. FPU (Programming Software) DescriptionThe FPU is the programming software for the transceiver

supplied on a CD-ROM. The software on this disk allows a user to program the transceiver transceivers via Program-ming interface cable (KPG-22/22A).

3-6. Programming with PCIf data is transferred to the transceiver from a PC with the

FPU, the data for each set can be modifi ed.Data can be programmed into the EEPROM in RS-232C

format via the SP/MIC jack.In this mode the PTT line operate as TXD and RXD data

lines respectively.

List of FPU for transceiver

Model Type FPU

TK-2302 K,M KPG-118D(K)

TK-2302 P KPG-119D(K)

TK-2302(V) K KPG-119D(K)

TK-2306 M KPG-118D(M)

PCKPG-22 or KPG-22A or KPG-22A+KCT-53UIllustration is KPG-22

FPU

Tuning cable(E30-3216-05)

D-SUB(25-pin)

Transceiver Transceiver Transceiver

KPG-22

PC

GrayGray/Black1.5D-XV Lead wire1.5D-XV Shield wire

+–+–

SP

MIC

D-SUB(9-pin)

KPG-22A

PC

USB

KPG-22A

KCT-53U

PC

Fig. 1

4. Wireless Clone Mode

4-1. Outline“Wireless Clone Mode” copies the transceiver data to

another transceiver.The dealer can copy the transceiver data to another trans-

ceiver even without the use of a personal computer.

4-2. ExampleThe transceiver can copy the programming data to one or

more transceivers via RF communication.The clone source and clone target/s must be in wireless

clone mode.

REALIGNMENT

TK-2302/2302(V)/2306

5

REALIGNMENT

4-3. Operation1. To switch the clone target/s to wireless clone mode,

press and hold the [PTT] and [side2] keys while turning the transceiver power ON.

2. Wait for 2 seconds. The LED will light orange and the transceiver will announce “Clone”.

3. Select a channel table number using Side1 (increment channel table) and Side2 (decrement channnel table) keys.

4. To switch the clone source to wireless clone mode, press and hold the [PTT] and [side2] keys while turning the transceiver power ON.

5. Wait for 2 seconds. The LED will light orange and the transceiver will announce “Clone”.

6. Select the same channel table number as the clone target/s.

7. Press [PTT] on the clone source to begin data transmis-sion.

When the clone target starts to receive data, the LED will light green.

When the clone source fi nishes sending data, a “confi r-mation” tone will sound.

If data transmission fails while cloning, an “error” tone will sound from the target unit.

8. If the cloning fails, no data will be available in the target unit when it is returned to User mode.

9. When the cloning is successful, the target unit’s “Scan” and “Key lock” functions will return to their default values (Scan = OFF, Key lock = OFF).

Notes:• The dealer can clone data to two or more transceivers by

repeating the above procedures.• If the transceivers wireless clone mode is confi gured as

“Disabled”, the transceiver cannot enter wireless clone mode.

• The table shown below will cover the frequency tables used for wireless cloning.

• Wireless clone mode cannot be entered in battery low state.

• A unit cannot be a “Source Unit” if it is unprogrammed. If [PTT] is pressed, an “error” tone will sound.

• The language used in cloning depends on the “Model type” setting, not the FPU setting.

• Once a unit is set to be the source, it cannot be a target after the data has been transmitted. This protects the data in the source unit.

• Electronic interface may cause a failure in data transfer during wireless clone, such as when waveforms or elec-tromagnetics are being performed at the workbench.

• Wireless clone mode can be used ONLY by the autho-

rized service personnel.

• The wireless clone mode setting must be confi gured

as “Disable” before being delivered to the end-user.

• To clone, replace the antenna from both the source

transceiver and the target transceiver with a dummy

load.

• The transmit output power is automatically set to

Low in wireless clone mode.

• Clone frequency table

No.Operating frequency

136~174MHz

1 136.150

2 138.150

3 140.150

4 142.150

5 144.150

6 146.150

7 148.150

8 150150

9 152.150

10 154.150

11 156.150

12 158.150

13 160.150

14 162.150

15 164.150

16 166.150

17 168.150

18 170.150

19 172.150

20 174.150

TK-2302/2302(V)/2306

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DISASSEMBLY FOR REPAIR

1. Removing the Case Assembly from the Chassis

1. Remove the volume knob q and channel knob w.2. Remove the two screws e.3. Lift and remove the chassis from the case assembly r.

(Use a fl at-blade screwdriver to easily lift the chassis.)

2. Removing the TX-RX unit from the Chassis

1. Detach the solder of speaker wire from the PCB before-hand.

2. Remove the packing t from the SP/MIC jack of the TX-RX unit.

3. Remove the ten screws y fi xing the TX-RX unit.4. Remove the solder of the antenna terminal with a solder-

ing iron u.5. Remove the solder of the positive terminal with a solder-

ing iron i. Note: You can remove the TX-RX unit from the chas-

sis without removing the solder at the positive terminal. However, in this case, you can not attach the packing (G53-1605-03) that is on the positive terminal to the chas-sis in assembling. So, it is advisable to remove the solder on the positive terminal fi rst.

6. Remove the FPC from the fl at cable connector o.7. Lift and remove the TX-RX unit from the chassis !0.

3. Removing the Battery Release Lever

from the Case Assembly

1. Press the upper part of the lever toward the inside of the case assembly. One side of the shaft will be removed q.

2. Lift and remove the battery release lever from the case assembly w.

4. Attaching the Battery Release Lever to

the Case Assembly

1. Insert one side of the shaft into the hole at the lever fi t-ting section on the case assembly q.

Caution: The thin spring (G01-4543-04) should be posi-tioned above the two tabs of the lever.

2. Tilt the battery release lever slightly forward w, so that the thick spring (G01-4542-04) is positioned below the case surface.

3. With the thick spring positioned below the case surface, attach the other side of the shaft to the case assembly by pressing the battery release lever e until it snaps into place r.

Caution: Be careful not to tilt the battery release lever too forward.

If the battery release lever is pushed in this state where the two tabs come below the case surface, there is a possibility of damaging the two tabs.

A thin spring

ShaftTow tabsA thick spring

TK-2302/2302(V)/2306

7

5. Assembling the Battery Release Lever

1. Place the lever w onto the stopper q.2. Place the thick spring e onto the lever.3. Hook the right and left ends of the thin spring r onto the

tabs of the stopper, then place the thin spring onto the lever t.

4. Slide the shaft through the hole of the stopper and lever y.

6. Attaching the Positive Terminal to the Chassis

Always attach the positive terminal to the chassis, using the following procedures, before mounting the TX-RX unit onto the chassis.

1. Remove the holder assembly w from the packing q of the positive terminal.

2. Mount the packing of the positive terminal into the chas-sis hole e.

3. Mount the holder assembly into the packing of the posi-tive terminal r.

7. Mounting the Chassis to the Case Assembly

1. Confirm that the waterproof packing attached to the circumference of the chassis is securely inserted in the groove of the chassis q.

2. Attach the speaker with waterproof packing to the speaker recess of the case assembly w. Make sure the speaker clasp is securely inserted.

3. Tighten the speaker clasp into the case assembly with the screw.

4. Insert the upper part of the chassis into the case assem-bly e.

Caution: Take care that the speaker lead wire is not caught by the microphone element.

5. Press the chassis r and the case assembly together to attach them.

Caution: If the packing of the SP/MIC does not come to the correct position after attaching the chassis to the case assembly, reposition the packing with your fi ngers.

Confirm that thewaterproof packing issecurely inserted in thegroove of the chassis.


TK-2302/2302(V)/2306

8

8. Attaching the Antenna Receptacle to the Chassis

Screw the antenna receptacle to the chassis in the order shown in the drawing so that the antenna receptacle comes to the center of the case hole.

Tighten this screw first.

Tighten this screw second

9. The Nuts of the Volume Knob and Channel Knob

Note that the shapes, colors and heights of nuts of the volume knob and channel knob are different from one another. (The nut of volume knob is silver, and the nut of channel knob is gold)

Use the following jig when removing the nuts of the vol-ume knob and channel knob.

• Jig (Part No.: W05-1012-00)

Volume knob(Long)

Channel knob(Short)


10. Screw sequence for mounting the TX-

RX unit to the chassis

Attach the TX-RX unit to the chassis using the screws in the order shown in the drawing below.

Note: From screw r onward no sequence is need.

TX-RX UNITComponent side view

TK-2302/2302(V)/2306

9

1. Frequency Confi guration

The receiver utilizes double conversion. The first IF is 38.85MHz and the second IF is 450kHz. The fi rst local oscil-lator signal is supplied from the PLL circuit.

The PLL circuit in the transmitter generates the neces-sary frequencies. Fig. 1 shows the frequencies.

ANTTX/RX : 136~174MHz

ANTSW

RFAMP

TXAMP

RFAMP

1st MIX MCF

38.85MHz

CF450kHz

IFSYSTEM

AFAMP

SP

RX:174.85~212.85MHz

PLLVCO

MICAMP

MIC

TX: 136~174MHz

38.4MHzX3

multiplyTCXO 12.8MHz

1/2

Fig. 1 Frequency confi guration

2. Receiver

The frequency confi guration of the receiver is shown in Fig. 2.

ANT

ANTSW

BPF

RCTV

RF AMPQ204

MIXERQ203

IF AMPQ202BPF

PCTV 1st Local

MCFXF201

IC201IF, MIX, DET

IC308AQUA-L

Q2X3 multiply

X1TXCO

CF201

2nd Local 12.8MHz

AF VOLIC309AF PA SP

Fig. 2 Receiver sectio

■ Front End (RF AMP)The signal coming from the antenna passes through the

transmit/receive switching diode circuit, (D103, D104 and D105) passes through a BPF (L214, L216 and L213), and is amplifi ed by the RF amplifi er (Q204).

The resulting signal passes through a BPF (L209 and L211) and goes to the mixer. These BPFs are adjusted by variable capacitors (D203, D204, D205 and D202). The input voltage to the variable capacitor is regulated by voltage out-put from the MCU (IC306).

CIRCUIT DESCRIPTION

■ First MixerThe signal from the front end is mixed with the fi rst local

oscillator signal generated in the PLL circuit by Q203 to pro-duce a fi rst IF frequency of 38.85MHz.

The resulting signal passes through the XF201 MCF to cut the adjacent spurious and provide the opitimun charac-teristics, such as adjacent frequency selectivity.

■ IF Amplifi er CircuitThe fi rst IF signal is passed through a four-pole monolithic

crystal fi lter (XF201) to remove the adjacent channel signal. The fi ltered fi rst IF signal is amplifi ed by the fi rst IF ampli-fier (Q202) and then applied to the lF system IC (IC201). The IF system IC provides a second mixer, limiting amplifi er, quadrature detector and RSSI (Received Signal Strength In-dicator). The second mixer mixes the fi rst IF signal with the 38.4MHz of the second local oscillator output (TCXO X1 and Q2) and produces the second IF signal of 450kHz.

The second IF signal is passed through the ceramic fi lter (CF201) to remove the adjacent channel signal. The fi ltered second IF signal is amplified by the limiting amplifier and demodulated by the quadrature detector with the ceramic discriminator (CD201). The demodulated signal is routed to the audio circuit.

■ Wide/Narrow Switching CircuitNarrow and Wide settings can be made for each channel

by switching the demodulation level.The WIDE (low level) and NARROW (high level) data is

output from IC306, pin 5. When a WIDE (low level) data is received, Q201 turn on. When a NARROW (high level) data is received, Q201 turn off.

Q201 turns on/off with the Wide/Narrow data and the IC201 detector output level is switched to maintain a con-stant output level during wide or narrow signals.

Q201

R209

R21

0

C20

9

CD

201

QUAD IFOUT

IC201FM IF SYSTEM

W/N(IC306) L : Wide

H: Narrow

AFOUT Q202

5R

Fig. 3 Wide/Narrow switching circuit

■ Audio Amplifi er CircuitThe demodulated signal from IC201 goes to AF amplifi er

through IC308.The signal then goes through an AF volume control , and

is routed to an audio power amplifi er (IC309) where it is am-plifi ed and output to the speaker.

TK-2302/2302(V)/2306

10

■ SquelchPart of the AF signal from the IC enters the FM IC (IC201)

again, and the noise component is amplifi ed and rectifi ed by a fi lter and an amplifi er to produce a DC voltage correspond-ing to the noise level.

The DC signal from the FM IC goes to the analog port of the MCU (IC306). IC306 determines whether to output sounds from the speaker by checking whether the input voltage is higher or lower than the preset value.

To output sounds from the speaker, IC306 sends a high signal to the AF_CONT line and turns IC309 on through Q312, Q313, Q314, Q315 and Q316. (See Fig. 4)

IC201: FM IFIF amp

SIGNAL

DTMF IC308AQUA-L

QT/DQT

BUSY QT/DQT IN

IC306MCU

AF_CONT

SPQ315,316IC309AF PA

Q312,313,314

CLK, DATA,STD, LOADN

SW

SW

Fig. 4 AF amplifi er and squelch

■ Receive Signaling

• QT/DQTThe output signal from FM IC (IC201) enters the MCU

(IC306) through IC308. IC306 determines whether the QT or DQT matches the preset value, and controls the SP MUTE and the speaker output sounds according to the squelch re-sults.

• MSK (Fleet Sync)The MSK input signal from the FM IC goes to pin 31 of IC

308. The signal is demodulated by MSK demodulator in IC 308. The demodulated data goes to the MCU for process-ing.

• DTMFThe DTMF input signal from the FM IC (IC201) goes to

IC308. The decoded information is then processed by the MCU.

3. PLL Frequency Synthesizer

The PLL circuit generates the fi rst local oscillator signal for reception and the RF signal for transmission.

■ PLLThe frequency step of the PLL circuit is 2.5, 5, 6.25 or

7.5kHz.A 12.8MHz reference oscillator signal is divided at IC1 by

a fi xed counter to produce an oscillator (VCO) output signal which is buffer amplifi ed by Q3 then divided in IC1 by a pro-grammable counter. The divided signal is compared in phase with the 5, 10, 12.5 or 15kHz reference signal from the phase comparator in IC1. The output signal from the phase comparator is fi ltered through a low-pass fi lter and passed to the VCO to control the oscillator frequency. (See Fig. 5)

■ VCOThe twice of operating frequency is generated by Q5 in

transmit mode and Q4 in receive mode. The oscillator fre-quency is controlled by applying the VCO control voltage, obtained from the phase comparator, to the varactor diodes (D4 and D8 in transmit mode and D3 and D6 in receive mode).

The RX_SW pin is set high in receive mode causing Q7 turn on. The TX_SW pin is set high in transmit mode. The outputs from Q4 and Q5 are amplifi ed by Q9 and sent to the prescaler (IC2).

■ Unlock DetectorIf a pulse signal appears at the LD pin of IC1, an unlock

condition occurs, and the DC voltage obtained from C4 and Q1 causes the voltage applied to the MCU to go low. When the MCU detects this condition, the transmitter is disabled, ignoring the push-to-talk switch input signal.

D4,8Q5

TX VCO

D3,6Q4

RX VCO

Q9BUFF AMP

1/2

Q3BUFFER

IC2

LPF

LPF

Q7,8T/R SW

RXTX

REF OSC

1/M

1/N

Phasecomparator

Chargepump

5,10,12.5 or 15kHz

5,10,12.5 or 15kHz

PLL DATA

X112.8MHz

IC1PLL IC

Fig. 5 PLL circuit

CIRCUIT DESCRIPTION

TK-2302/2302(V)/2306

11

4. Transmitter System

■ Microphone Amplifi erThe signal from the microphone passes through the

IC308. When encoding DTMF, it is turned OFF for muting the microphone input signal by IC308.

The signal passes through the Audio processor (IC308) for the maximum deviation adjustment, and goes to the VCO modulation input.

AGC

LPF

LPF

VCO

LPF TCXO

MIC

DTMF

IC308AQUA-L

IC306MCU

QTVCO

QTTCXO

X1

Fig. 6 Microphone amplifi er

■ Drive and Final Amplifi erThe signal from the T/R switch (D10 is on) is amplifi ed

by the pre-drive (Q101) and the drive amplifier (Q102) to 800mW.

The output of the drive amplifi er is amplifi ed by the RF power amplifier (Q105) to 5.0W (1W when the power is low). The output of the RF power amplifi er is then passed through the harmonic fi lter (LPF) and antenna switch (D103) and applied to the antenna terminal.

FromT/R SW

(D10)

DriveAMP

Pre-driveAMP

Q101 Q102

RF powerAMP

Q105

ANTSW

LPF

D103

ANT

VDD

VG

IC101(1/2)

IC101(2/2)

R117

R120

R123

+B

PCTV(IC306)

5TVD VG

Fig. 7 Drive and fi nal amplifi er and APC circuit

■ APC CircuitThe APC circuit always monitors the current flowing

through the drive amplifi er and RF power amplifi er (Q102 and Q105) and keeps a constant current.

The voltage drop at R117, R120 and R123 is caused by the current flowing through the RF power amplifier and drive amplifi er, and this voltage is applied to the differential amplifi er IC101 (1/2).

IC101 (2/2) compares the output voltage of IC101 (1/2) with the reference voltage from IC306. The output of IC101 (2/2) controls the VG of the RF power amplifier and drive amplifi er to make both voltages the same.

The change of power high/low is carried out by the change of the reference voltage.

■ Encode Signaling

• QT/DQTQT/DQT data of the QTTCXO Line is output from pin 14

of the MCU. The signal passes through a low-pass CR fi lter and goes to the TCXO (X1).

The QT/DQT data of the QTVCO Line is output from pin 15 of the MCU. The signal passes through a low pass CR fi l-ter, mixes with the audio signal, and goes to the VCO modu-lation input. TX deviation is adjusted by the MCU.

• DTMFHigh-speed data is output from pin 74 of the MCU. The

signal passes through a low-pass CR fi lter, and provides a TX and SP out tone, and is then applied to the audio proces-sor (IC308). The signal is mixed with the audio signal and goes to the VCO.

TX deviation is adjusted by the MCU.

• MSK (Fleet Sync)Fleet Sync utilizes 1200bps and 2400bps MSK signal is

output from pin 6 of IC308. And is routed to the VCO. When encoding MSK, the microphone input signal is muted.

5. Power Supply

There are four 5V power supplies in the transceiver: 5M, 5C, 5R, and 5T. 5M for MCU is always output while the power is on. 5M is always output, but turns off when the power is turned off to prevent malfunction of the MCU.

5C is a common 5V and is output when SAVE is not set to OFF.

5R is 5V for reception and output during reception.5T is 5V for transmission and output during transmission.

6. Control Circuit

The control circuit consists of a MCU (IC306) and its peripheral circuits. It controls the TX-RX unit. IC306 mainly performs the following:1) Switching between transmission and reception by the

PTT signal input.2) Reading system, group, frequency, and program data

from the memory circuit.3) Sending frequency program data to the PLL.4) Controlling squelch on/off by the DC voltage from the

squelch circuit.5) Controlling the audio mute circuit by the decode data in-

put.6) Transmitting tone and encode data.

CIRCUIT DESCRIPTION

TK-2302/2302(V)/2306

12

■ Frequency Shift CircuitThe MCU (IC306) operates at a clock of 14.746 MHz. This

oscillator has a circuit that shifts the frequency by BEAT SHIFT SW (Q305, Q306).

A beat sound may be able to be evaded from generation if “Beat Shift” is set to ON when it is generated in the inter-nal spurious transmission modulated sound of a transceiver.

X301

XOUT XIN

BSHIFT

Q305 Q306

IC306MCU

Hi: ONLow: OFF

Fig. 8 Frequency shift circuit

■ Memory CircuitMemory circuit consists of the MCU (IC306) and an EE-

PROM (IC305). An EEPROM has a capacity of 16k bits that contains the transceiver control program for the MCU and data such as transceiver channels and operating features.

MCU EEPROM

IC306 IC305

Fig. 9 Memory circuit

■ Low Battery WarningThe battery voltage is checked using by the MCU. The

transceiver generates a warning tone when it falls below the warning voltage shown in the table.1) The red LED blinks when the battery voltage falls below

the voltage (1) shown in the table during transmission. Note: The transceiver checks the battery voltage during

reception even when, in the FPU, the Battery Warning status function is set to “On TX” (default setting).

However, the LED does not blink during reception. Dur-ing transmission, the LED blinks to generate the warning tone of a low battery voltage.

2) The transceiver immediately stops transmission when the battery voltage falls below the voltage (2) shown in the table. A message tone beeps while the PTT switch is released.

Ni-Cd Battery Ni-MH Battery Li-ion Battery

(1) 6.2V 6.2V 6.2V

(2) 5.9V 5.9V 5.9V

66 IC306MCU

R301SB

R30

5

Fig. 10 Low battery warning

7. Control System

Keys and channel selector circuit. The signal from the keys and channel selector are directly input to the MCU, as shown in Fig. 11.

EN162

55

56

57

Channelselector

61605958

EN2EN3EN4EN5

IC306MCU

SIDE1

PTT PTTSW

SW1

SW2SIDE2

Fig. 11 Control system

CIRCUIT DESCRIPTION

TK-2302/2302(V)/2306

13

MCU: R5F212CCKCMB (TX-RX unit IC306)

Pin No. Signal Name I/O Function

1 5T_C O 5T control

2 PLL_STB O PLL strobe

3 5C_C O 5C control

4 5R_C O 5R control

5 W/N O Wide/Narrow switch

6 MODE I No function

7 AF_CONT O Speaker mute

8 BSHIFT O Beat shift control

9 RESET I MCU reset

10 XOUT O MCU clock (14.746MHz)

11 VSS - GND

12 XIN I MCU clock (14.746MHz)

13 VCC I Power supply input

14 QTTCXO O QT/DQT output

15 QTVCO O QT/DQT output

16~21 AUX6~AUX1 I/O No function

22 MIC_MUTE O MIC mute

23 AF_MUTE O No function

24~32 N.C O No function

33 RXDATA I No function

34 TXDATA O No function

35 OPTDET I Headset detect

36 TX_SW O TX VCO switch

37 RX_SW O RX VCO switch

38 LEDRX O Green LED control

39 LEDTX O Red LED control

40 APC_SW O APC switch

41 DC_SW O APC discharge switch

42 STD I Baseband IC data input

43 1/2 OSC O Baseband IC clock (3.6864MHz)

44 INT I No function

45 TXD O Serial data output

SEMICONDUCTOR DATA

Pin No. Signal Name I/O Function

46 RXD I Serial data input

47 DIR O Baseband IC data output

48 DI/O I/O Baseband IC data input / output

49 DTRLOADN O Baseband IC data output

50 TDATA/DTRCLK O Baseband IC data output

51 SCLK O Serial clock for baseband IC

52 TCLK/DTRDO I Baseband IC data input

53 RDF/FD I Baseband IC data input

54 MDSW I No function

55 PTT I PTT switch input

56 SIDE1 I Side1 key input

57 SIDE2 I Side2 key input

58~62 EN5~EN1 I Channel selector input

63 DIST1 I No function

64 DIST2 I No function

65 PLL_UL I PLL unlock signal input

66 BATT I Battery voltage detect

67 RSSI I RSSI input

68 BUSY I Busy signal input

69 VOX I VOX signal detect

70 QT/DQT_IN I QT/DQT signal input

71 EEPCLK O EEPROM clock

72 EEPDAT I/O EEPROM data input / output

73 TH_DET I Temperature detect

74 DTMF I DTMF/BEEP output

75 AVSS - GND

76 PCTV I APC/BPF control voltage

77 VREF I Reference voltage input

78 AVCC I Power supply input

79 PLL_DAT O PLL data output

80 PLL_CLK O PLL clock output

TERMINAL FUNCTION

TX-RX unit (X57-7570-20)

Pin No. Name I/O Function

CN301

1 B I B (Battery Voltage)

2 SB O Switched B

3 AFVOL_IN I Audio input

4 AFVOL_OUT O Audio output

5 AFVOL_GND - GND

Pin No. Name I/O Function

6 EN1 I Encoder pulse input


8 GND - GND




TK-2302/2302(V)/2306

14

TX-RX unit (X57-7570-20)

Ref. No. Part Name Description

IC1 IC PLL system IC

IC2 IC Prescaler

IC101 IC APC

IC201 IC FM system IC

IC301 IC Voltage detector/ Reset

IC303,304 IC Voltage regulator/ 5V

IC305 IC EEPROM

IC306 IC MCU

IC308 IC Audio processor

IC309 IC Audio amplifi er

Q1 Transistor Rectifi cation

Q2 Transistor Tripler

Q3 Transistor RF amplifi er

Q4 FET VCO/ RX

Q5 FET VCO/ TX


Q7 Transistor DC switch/ RX VCO

Q8 Transistor DC switch/ TX VCO


Q10 Transistor Ripple fi lter



Q102 FET TX drive amplifi er

Q103 Transistor Discharge switch

Q105 FET TX fi nal amplifi er

Q106 Transistor DC switch

Q107 FET DC switch

Q108 Transistor DC switch

Q201 Transistor Wide/Narrow switch/ RX

Q202 Transistor IF amplifi er

Q203 FET Mixer

Q204 FET Low noise amplifi er

COMPONENTS DESCRIPTION

Ref. No. Part Name Description

Q301 Transistor DC switch/ Red color LED

Q302 Transistor DC switch/ Green color LED

Q303 Transistor DC switch/ 5R

Q304 Transistor DC switch/ 5T

Q305,306 Transistor Beat shift switch

Q307 Transistor Wide/Narrow switch/ TX


Q310,311 Transistor MIC mute

Q312,313 Transistor DC switch

Q314 Transistor Mute switch

Q315,316 FET Mute switch

D3Variable Capci-tance Diode

Frequency control/ RX VCO


Frequency control/ TX VCO


Frequency control/ RX VCO


Frequency control/ TX VCO


Modulator

D10 Diode TX/RX RF switch

D101 Zener diode Voltage protection

D103~105 Diode ANT switch

D202~205Variable Capci-tance Diode

RF BPF tuning

D301 Diode Reverse voltage protection

D302 Diode Rectifi cation

D303 LED Red color LED

D304 LED Green color LED

D306 Diode Rectifi cation

D307 Diode Limiter

D308,309 Diode Rectifi cation

TK-2302/2302(V)/2306

15

PARTS LIST

Chip capacitor

Code L W T Empty 5.6±0.5 5.0±0.5 Less than 2.0 A 4.5±0.5 3.2±0.4 Less than 2.0 B 4.5±0.5 2.0±0.3 Less than 2.0 C 4.5±0.5 1.25±0.2 Less than 1.25 D 3.2±0.4 2.5±0.3 Less than 1.5 E 3.2±0.2 1.6±0.2 Less than 1.25 F 2.0±0.3 1.25±0.2 Less than 1.25 G 1.6±0.2 0.8±0.2 Less than 1.0 H 1.0±0.05 0.5±0.05 0.5±0.05Chip resistor

Code L W T E 3.2±0.2 1.6±0.2 1.0 F 2.0±0.3 1.25±0.2 1.0 G 1.6±0.2 0.8±0.2 0.5±0.1 H 1.0±0.05 0.5±0.05 0.35±0.05

• Rating wattage

Code Wattage Code Wattage Code Wattage 1J 1/16W 2C 1/6W 3A 1W 2A 1/10W 2E 1/4W 3D 2W 2B 1/8W 2H 1/2W

(Less than 10pF) Code B C D F G (pF) ±0.1 ±0.25 ±0.5 ±1 ±2

CAPACITORS

C C 4 5 T H 1 H 2 2 0 J 1 2 3 4 5 61 = Type ... ceramic, electrolytic, etc. 4 = Voltage rating2 = Shape ... round, square, etc. 5 = Value3 = Temp. coefficient 6 = Tolerance

• Temperature coefficient

1st Word C L P R S T U Color* Black Red Orange Yellow Green Blue Violet ppm/°C 0 –80 –150 –220 –330 –470 –750

• Tolerance (More than 10pF)

Code C D G J K M X Z P No code (%) ±0.25 ±0.5 ±2 ±5 ±10 ±20 +40 +80 +100 More than 10μF : –10~+50 –20 –20 –0 Less than 4.7μF : –10~+75

• Voltage rating

2nd word A B C D E F G H J K V 1st word 0 1.0 1.25 1.6 2.0 2.5 3.15 4.0 5.0 6.3 8.0 – 1 10 12.5 16 20 25 31.5 40 50 63 80 35 2 100 125 160 200 250 315 400 500 630 800 – 3 1000 1250 1600 2000 2500 2150 4000 5000 6300 8000 –

• Chip capacitors

(EX) C C 7 3 F S L 1 H 0 0 0 J Refer to the table above. 1 2 3 4 5 6 7 1 = Type (Chip) (CH, RH, UJ, SL) 2 = Shape 3 = Dimension(EX) C K 7 3 F F 1 H 0 0 0 Z 4 = Temp. coefficient 1 2 3 4 5 6 7 5 = Voltage rating (Chip) (B, F) 6 = Value 7 = Tolerance

RESISTORS

• Chip resistor (Carbon)

(EX) R D 7 3 E B 2 B 0 0 0 J 1 2 3 4 5 6 7 (Chip) (B, F) • Carbon resistor (Normal type) (EX) R D 1 4 B B 2 C 0 0 0 J 1 2 3 4 5 6 7

1 = Type 5 = Rating wattage2 = Shape 6 = Value3 = Dimension 7 = Tolerance4 = Temp. coefficient

CC45Color*

2nd Word G H J K L ppm/°C ±30 ±60 ±120 ±250 ±500Example : CC45TH = –470±60ppm/°C

• Capacitor value

010 = 1pF 2 2 0 = 22pF100 = 10pF101 = 100pF Multiplier102 = 1000pF = 0.001μF 2nd number103 = 0.01μF 1st number

L

W

T

• Dimension

TK-2302/2302(V)/2306

16

✽ New Parts. indicates safety critical components.Parts without Parts No. are not supplied.Les articles non mentionnes dans le Parts No. ne sont pas fournis.Teile ohne Parts No. werden nicht geliefert.

L : Scandinavia K : USA P : CanadaY : PX (Far East, Hawaii) T : England E : Eu ropeY : AAFES (Europe) X : Australia M : Oth er Areas

Ref. No. Ad dress Parts No. Description Desti-nation

Newparts

AK: TK-2302 K AP: TK-2302 P VK: TK-2302(V) K

AM: TK-2302 M BM: TK-2306 M


Newparts

PARTS LIST

1 1A ✽ A02-4040-03 PLASTIC CABINET ASSY 2 3A ✽ A10-4124-01 CHASSIS

4 2C,2E ✽ B09-0725-03 CAP ACCESSORY 7 1C ✽ B62-2109-00 INSTRUCTION MANUAL AK,AM7 1C ✽ B62-2111-00 INSTRUCTION MANUAL BM7 1C,1E ✽ B62-2139-00 INSTRUCTION MANUAL AP,VK

9 1A D10-0649-03 LEVER 10 1A D21-0863-04 SHAFT 11 1A D32-0441-13 STOPPER

13 2B E04-0477-05 ANTENNA CONNECTOR (SMA) 14 3A E23-1253-04 TERMINAL (BATT-) 15 2A E23-1254-04 TERMINAL (BATT+) 16 2B ✽ E37-1175-15 SP WIRE LEAD (BROWN) 17 2B ✽ E37-1176-15 SP WIRE LEAD (GREEN)

19 3A F20-3353-14 INSULATING SHEET (CHASSIS BATT+)

21 1A G01-4542-04 COIL SPRING (LEVER) 22 1A G01-4543-14 COIL SPRING (STOPPER) 23 2A G10-1330-04 FIBROUS SHEET (AUDIO IC) 24 2A ✽ G11-4465-04 RUBBER SHEET (FINAL FET) 25 3B G13-2009-04 CUSHION (CHASSIS)

26 3A G13-2033-04 CUSHION (BATT-) 27 3A G13-2034-14 CUSHION (CHASSIS-) 28 3A G13-2038-24 CUSHION (CHASSIS-CERAMIC FILTER) 29 2A G13-2039-14 CUSHION (PCB-CERAMIC FILTER) 30 3A G53-1604-03 PACKING (CHASSIS)

31 2A G53-1605-03 PACKING (BATT+) 32 2A G53-1609-14 PACKING (ECM) 33 2B ✽ G53-1799-03 PACKING (VOLUME/SELECTOR) 34 1B ✽ G53-1800-03 PACKING (SP/MIC) 35 1B ✽ G53-1801-03 PACKING (SPEAKER)

36 2B ✽ G53-1802-04 PACKING (SMA)

38 2E ✽ H12-4250-05 PACKING FIXTURE AP39 2D ✽ H12-4251-05 PACKING FIXTURE AK,VK,BM39 2D ✽ H12-4251-05 PACKING FIXTURE AM40 1F H13-2109-03 CARTON BOARD AP42 3D ✽ H52-2300-03 ITEM CARTON CASE AK,VK,BM

42 3D ✽ H52-2300-03 ITEM CARTON CASE AM43 3F ✽ H52-2301-13 ITEM CARTON CASE AP

46 2A J19-5463-03 HOLDER (BATT+) 47 2A J19-5473-03 HOLDER ASSY (BATT+) 48 2C,2E ✽ J19-5521-03 HOLDER (SP/MIC) ACCESSORY 49 2B ✽ J19-5522-03 SPEAKER CLASP 50 2C,1E J29-0734-05 BELT HOOK ACCESSORY

51 2A ✽ J82-0121-05 FPC 52 1A ✽ J99-0737-04 ADHESIVE SHEET (PTT)

54 1B ✽ K29-9309-13 KNOB (VOLUME) 55 1A ✽ K29-9425-03 BUTTON KNOB (PTT) 56 1A ✽ K29-9426-03 BUTTON KNOB (MON/PF) 57 1B ✽ K29-9427-03 KNOB (SELECTOR)

A 3B ✽ N14-0848-05 CIRCULAR NUT (SELECTOR)

B 3B ✽ N14-0849-05 CIRCULAR NUT (VOLUME) C 2B N30-2604-48 PAN HEAD MACHINE SCREW (SMA) D 3A N30-2606-48 PAN HEAD MACHINE SCREW E 2A,3A,2B N83-2005-48 PAN HEAD TAPTITE SCREW 61 2C,2E N99-2046-05 SCREW SET ACCESSORY

63 2A ✽ R31-0670-15 VARIABLE RESISTOR

65 2A ✽ S60-0440-05 ROTARY SWITCH

67 1B T07-0369-15 SPEAKER 68 2D,2E T90-1036-15 HELICAL ANTENNA

70 1F W08-0970-35 AC ADAPTER (TRANSFORMER) AP71 1C W08-0988-05 CHARGER (KSC-35) AK,VK,AM72 1D W08-0989-15 AC ADAPTER (SWITCHING) AK,VK73 1D W08-0992-05 AC ADAPTER (SWITCHING) AM74 1C,2F ✽ W08-1067-05 CHARGER (KCS-31) AP,BM

75 1D ✽ W08-1075-05 AC ADAPTER (SWITCHING) BM

D303 ✽ B30-2315-05 LED (RED) D304 ✽ B30-2314-05 LED (GREEN)

C1 CK73HB1H332K CHIP C 3300PF K C2 CK73HB1C682K CHIP C 6800PF K C3 CK73GB1A105K CHIP C 1.0UF K C4 CK73HB1A104K CHIP C 0.10UF K C5 CK73HB1H102K CHIP C 1000PF K

C6 CK73HB1E103K CHIP C 0.010UF K C7 CC73HCH1H100D CHIP C 10PF D C8-10 CC73HCH1H101J CHIP C 100PF J C11 CK73FB0J106K CHIP C 10UF K C12 CK73HB1H102K CHIP C 1000PF K

C13 CC73HCH1H100D CHIP C 10PF D C14,15 CK73HB1E103K CHIP C 0.010UF K C16 CC73HCH1H470J CHIP C 47PF J C17 CK73HB1E103K CHIP C 0.010UF K C18 CC73HCH1H180J CHIP C 18PF J

C23 CK73HB1E103K CHIP C 0.010UF K C25 CC73HCH1H300J CHIP C 30PF J C26 CC73HCH1H020B CHIP C 2.0PF B C27 CS77AA1VR33M CHIP TNTL 0.33UF 35WV C29 CC73HCH1H270J CHIP C 27PF J

C30 CK73HB1H102K CHIP C 1000PF K C31 CK73HB1E103K CHIP C 0.010UF K C32 CS77CA1C3R3M CHIP TNTL 3.3UF 16WV C33 CK73HB1H471K CHIP C 470PF K C35 CS77CA1V0R1M CHIP TNTL 0.1UF 35WV

C36 CK73HB1H332K CHIP C 3300PF K C39 CK73HB1C682K CHIP C 6800PF K C40 CC73HCH1H060B CHIP C 6.0PF B C41 CC73HCH1H040B CHIP C 4.0PF B C42 CC73HCH1H060B CHIP C 6.0PF B

TK-2302/2302(V)/2306

TX-RX UNIT (X57-7570-20)

TK-2302/2302(V)/2306 (Y50-634X-XX)

TX-RX UNIT (X57-7570-20)

TK-2302/2302(V)/2306

17

PARTS LIST


Newparts Ref. No. Ad dress Parts No. Description Desti-

nationNewparts

TX-RX UNIT (X57-7570-20)

C44,45 CK73GB1A105K CHIP C 1.0UF K C47 CC73HCH1H150J CHIP C 15PF J C49 CC73HCH1H0R5B CHIP C 0.5PF B C50 CK73HB1H471K CHIP C 470PF K C51 CC73HCH1H100D CHIP C 10PF D

C52 CC73HCH1H121J CHIP C 120PF J C53 CC73HCH1H181J CHIP C 180PF J C56 CC73HCH1H060B CHIP C 6.0PF B C57 CC73HCH1H090B CHIP C 9.0PF B C58 CC73HCH1H020B CHIP C 2.0PF B

C59 CC73HCH1H2R5B CHIP C 2.5PF B C60 ✽ CC73HCH1H4R5B CHIP C 4.5PF B C61 CC73HCH1H050B CHIP C 5.0PF B C62 CK73HB1H471K CHIP C 470PF K C63 CC73HCH1H050B CHIP C 5.0PF B

C64 CC73HCH1H060B CHIP C 6.0PF B C65 CC73HCH1H050B CHIP C 5.0PF B C66 CK73HB1H471K CHIP C 470PF K C67 CC73HCH1H060B CHIP C 6.0PF B C68 CK73HB1H471K CHIP C 470PF K

C70,71 CC73HCH1H0R5B CHIP C 0.5PF B C72,73 CK73HB1A104K CHIP C 0.10UF K C74 CK73HB1H102K CHIP C 1000PF K C75 CK73HB1H471K CHIP C 470PF K C76 CS77CP0J100M CHIP TNTL 10UF 6.3WV

C77 CK73HB1H102K CHIP C 1000PF K C78 CC73HCH1H330J CHIP C 33PF J C79,80 CK73HB1H471K CHIP C 470PF K C81 CC73HCH1H150J CHIP C 15PF J C82,83 CK73HB1H471K CHIP C 470PF K

C84 CK73HB1H102K CHIP C 1000PF K C86-88 CK73HB1H102K CHIP C 1000PF K C89 CC73HCH1H101J CHIP C 100PF J C101 CK73HB1H102K CHIP C 1000PF K C102 CC73HCH1H390J CHIP C 39PF J

C103 CK73GB1A105K CHIP C 1.0UF K C106,107 CK73HB1H102K CHIP C 1000PF K C108 CC73HCH1H390J CHIP C 39PF J C109 CK73HB1A104K CHIP C 0.10UF K C110 CK73HB1H102K CHIP C 1000PF K

C114 CK73HB1H102K CHIP C 1000PF K C118 CK73HB1H102K CHIP C 1000PF K C119 CC73HCH1H270J CHIP C 27PF J C120 CK73HB1H102K CHIP C 1000PF K C122,123 CK73HB1H102K CHIP C 1000PF K

C124 CK73GB1A105K CHIP C 1.0UF K C125 CK73HB1E103K CHIP C 0.010UF K C127 CK73GB1A105K CHIP C 1.0UF K C129,130 CK73HB1H102K CHIP C 1000PF K C131 CC73HCH1H101J CHIP C 100PF J

C132 CC73GCH1H100D CHIP C 10PF D C134 CK73HB1H102K CHIP C 1000PF K C135 CK73HB1A104K CHIP C 0.10UF K C136 CK73HB1H471K CHIP C 470PF K C138 CC73GCH1H270J CHIP C 27PF J

C139 CC73GCH1H680J CHIP C 68PF J C140 CK73HB1H102K CHIP C 1000PF K C141 CC73GCH1H270J CHIP C 27PF J C143 CC73GCH1H130J CHIP C 13PF J C145 CC73GCH1H820J CHIP C 82PF J

C146 CC73GCH1H070B CHIP C 7.0PF B C148 CK73HB1H102K CHIP C 1000PF K C149 CC73GCH1H220J CHIP C 22PF J C150 CK73GB1H102K CHIP C 1000PF K C151 CC73GCH1H100D CHIP C 10PF D

C152 CC73GCH1H110J CHIP C 11PF J C153 CC73GCH1H100D CHIP C 10PF D C154 CC73GCH1H180J CHIP C 18PF J C155 CC73GCH1H120J CHIP C 12PF J C156 CC73GCH1H150J CHIP C 15PF J

C157 CC73HCH1H330J CHIP C 33PF J C158 CC73GCH1H070B CHIP C 7.0PF B C201 CK73GB1C224K CHIP C 0.22UF K C202 CK73FB0J106K CHIP C 10UF K C203 CK73HB1E103K CHIP C 0.010UF K

C204 CK73HB1H102K CHIP C 1000PF K C205 CK73HB1H182K CHIP C 1800PF K C206,207 CK73HB1H561K CHIP C 560PF K C208 CK73HB1A104K CHIP C 0.10UF K C209 CC73HCH1H680J CHIP C 68PF J

C210,211 CK73HB1A104K CHIP C 0.10UF K C212 CK73HB1H102K CHIP C 1000PF K C213,214 CK73HB1A104K CHIP C 0.10UF K C215 CC73HCH1H020B CHIP C 2.0PF B C216,217 CK73HB1E103K CHIP C 0.010UF K

C220 CC73HCH1H010B CHIP C 1.0PF B C221 CC73HCH1H120J CHIP C 12PF J C223 CC73HCH1H070B CHIP C 7.0PF B C224 CC73HCH1H060B CHIP C 6.0PF B C225 CK73HB1E103K CHIP C 0.010UF K

C226 CC73HCH1H130J CHIP C 13PF J C227 CC73HCH1H070B CHIP C 7.0PF B C228 CK73HB1A104K CHIP C 0.10UF K C229 CC73HCH1H060B CHIP C 6.0PF B C230 CK73HB1E103K CHIP C 0.010UF K

C231 CK73HB1H102K CHIP C 1000PF K C232 CC73HCH1H120J CHIP C 12PF J C233 CK73HB1H102K CHIP C 1000PF K C235 CK73HB1E103K CHIP C 0.010UF K C236 CK73HB1H102K CHIP C 1000PF K

C237 CC73HCH1H060B CHIP C 6.0PF B C238 CK73HB1H102K CHIP C 1000PF K C243 CK73FB0J106K CHIP C 10UF K C244 CC73HCH1H030B CHIP C 3.0PF B C245 CK73HB1H102K CHIP C 1000PF K

C246 CC73HCH1H560J CHIP C 56PF J C247 CC73HCH1H030B CHIP C 3.0PF B C248 CK73HB1H102K CHIP C 1000PF K C249 CC73HCH1H2R5B CHIP C 2.5PF B C250 CC73HCH1H560J CHIP C 56PF J

C251 CC73GCH1H050B CHIP C 5.0PF B C252 CK73HB1H102K CHIP C 1000PF K C254,255 CK73HB1H102K CHIP C 1000PF K C257 CC73HCH1H390J CHIP C 39PF J C258 CC73HCH1H040B CHIP C 4.0PF B

C259 CC73HCH1H560J CHIP C 56PF J C260 CC73HCH1H040B CHIP C 4.0PF B C261 CK73HB1H102K CHIP C 1000PF K C262 CC73HCH1H040B CHIP C 4.0PF B C263 CC73HCH1H560J CHIP C 56PF J

TK-2302/2302(V)/2306

18


Newparts

PARTS LIST


Newparts

TX-RX UNIT (X57-7570-20)

C400 CK73FB0J106K CHIP C 10UF K C402 CK73HB1A104K CHIP C 0.10UF K C403 CK73HB1A473J CHIP C 0.047UF J C404 CS77CC0J101M CHIP TNTL 100UF 6.3WV C405 CC73HCH1H221J CHIP C 220PF J

C408 CK73HB1H102K CHIP C 1000PF K C413-415 CK73HB1H102K CHIP C 1000PF K C418 CC73HCH1H390J CHIP C 39PF J TC1,2 C05-0384-05 CERAMIC TRIMMER CAP (10PF)

CN301 E40-6573-05 FLAT CABLE CONNECTOR J301 E11-0703-05 PHONE JACK (2.5/3.5)

F301 F53-0324-05 FUSE (2.5A)

101 2A J30-1282-14 SPACER

CD201 L79-1866-05 TUNING COIL CF201 2A L72-0973-05 CERAMIC FILTERL1 L92-0138-05 CHIP FERRITE L2 L40-4791-86 SMALL FIXED INDUCTOR (4.7UH) L4 L40-5681-86 SMALL FIXED INDUCTOR (0.56UH)

L6 L40-5681-86 SMALL FIXED INDUCTOR (0.56UH) L7 L92-0138-05 CHIP FERRITE L8 L40-1875-71 SMALL FIXED INDUCTOR (18NH) L9 L92-0470-05 CHIP FERRITE L10,11 L40-1885-92 SMALL FIXED INDUCTOR (180NH)

L12 L40-3375-71 SMALL FIXED INDUCTOR (33NH) L13,14 L40-1885-92 SMALL FIXED INDUCTOR (180NH) L15 L40-3378-67 SMALL FIXED INDUCTOR (33NH) L16 L40-2278-67 SMALL FIXED INDUCTOR (22NH) L17,18 L41-2785-45 SMALL FIXED INDUCTOR (270NH)

L19,20 L40-1885-92 SMALL FIXED INDUCTOR (180NH) L21 L92-0138-05 CHIP FERRITE L22 L40-3975-71 SMALL FIXED INDUCTOR (39NH) L23 L92-0138-05 CHIP FERRITE L24 L40-8275-71 SMALL FIXED INDUCTOR (82NH)

L102 L40-4775-71 SMALL FIXED INDUCTOR (47NH) L103 L41-1585-45 SMALL FIXED INDUCTOR (150NH) L104 ✽ L92-0472-05 CHIP FERRITE L105 L40-2275-92 SMALL FIXED INDUCTOR (22NH) L106 L34-4577-05 AIR-CORE COIL

L107 ✽ L92-0472-05 CHIP FERRITE L108 L34-4563-05 AIR-CORE COIL L109 L34-4573-05 AIR-CORE COIL L110 L34-4575-05 AIR-CORE COIL L111 ✽ L41-6885-39 SMALL FIXED INDUCTOR (0.68UH)

L112 L34-4576-05 AIR-CORE COIL L113 L34-4575-05 AIR-CORE COIL L114 L34-4567-05 AIR-CORE COIL L115 L40-1275-92 SMALL FIXED INDUCTOR (12NH) L116 L34-4566-05 AIR-CORE COIL

L117 L41-1092-44 SMALL FIXED INDUCTOR (1UH) L201 L40-1091-86 SMALL FIXED INDUCTOR (1.0UH) L202,203 L40-3975-71 SMALL FIXED INDUCTOR (39NH) L204 L92-0138-05 CHIP FERRITE L205 L41-5685-39 SMALL FIXED INDUCTOR (0.56UH)

L206 L40-1885-92 SMALL FIXED INDUCTOR (180NH) L207 L40-1085-92 SMALL FIXED INDUCTOR (100NH) L209 L41-5678-14 SMALL FIXED INDUCTOR (56NH) L210 L92-0138-05 CHIP FERRITE L211 L41-5678-14 SMALL FIXED INDUCTOR (56NH)

C264 CC73HCH1H050B CHIP C 5.0PF B C265 CC73HCH1H300J CHIP C 30PF J C303 CK73HB1H102K CHIP C 1000PF K C304 CK73HB1A104K CHIP C 0.10UF K C305 CC73HCH1H101J CHIP C 100PF J

C306 CK73GB1A105K CHIP C 1.0UF K C307 CC73HCH1H101J CHIP C 100PF J C310 CK73GB1A105K CHIP C 1.0UF K C311 CC73HCH1H101J CHIP C 100PF J C312 CK73HB1H102K CHIP C 1000PF K

C313 CC73HCH1H101J CHIP C 100PF J C315 CC73HCH1H101J CHIP C 100PF J C316 CK73HB1H102K CHIP C 1000PF K C318 CK73HB1E103K CHIP C 0.010UF K C319,320 CK73HB1H102K CHIP C 1000PF K

C321 CK73GB1A105K CHIP C 1.0UF K C322 CK73HB1H102K CHIP C 1000PF K C323 CK73GB1A105K CHIP C 1.0UF K C325 CK73HB1H102K CHIP C 1000PF K C327 CK73HB1H102K CHIP C 1000PF K

C331 CK73HB1A104K CHIP C 0.10UF K C332 CC73HCH1H050B CHIP C 5.0PF B C334 CK73HB1E103K CHIP C 0.010UF K C335 CK73FB0J106K CHIP C 10UF K C337 CC73HCH1H050B CHIP C 5.0PF B

C339 CK73GB1A105K CHIP C 1.0UF K C341 CK73HB1H102K CHIP C 1000PF K C353,354 CK73HB1E103K CHIP C 0.010UF K C356 CK73HB1H102K CHIP C 1000PF K C358 CK73GB1C224K CHIP C 0.22UF K

C359 CK73FB0J106K CHIP C 10UF K C360 CK73HB1A104K CHIP C 0.10UF K C361 CK73GB1A105K CHIP C 1.0UF K C362 CK73HB1H102K CHIP C 1000PF K C363 CC73HCH1H820J CHIP C 82PF J

C364 CC73HCH1H120J CHIP C 12PF J C365 CC73HCH1H121J CHIP C 120PF J C366 CK73HB1A104K CHIP C 0.10UF K C367 CK73GB1A105K CHIP C 1.0UF K C368 CK73HB1H271K CHIP C 270PF K

C369,370 CK73HB1A104K CHIP C 0.10UF K C371 CK73FB0J106K CHIP C 10UF K C372 CK73HB1H102K CHIP C 1000PF K C373 CC73HCH1H121J CHIP C 120PF J C374-376 CK73HB1H102K CHIP C 1000PF K

C377 CK73HB1A683K CHIP C 0.068UF K C378 CC73HCH1H820J CHIP C 82PF J C379,380 CK73GB1A105K CHIP C 1.0UF K C381 CK73HB1H391K CHIP C 390PF K C382 CK73HB1C153K CHIP C 0.015UF K

C383-385 CK73HB1A104K CHIP C 0.10UF K C386 CK73HB1E103K CHIP C 0.010UF K C388,389 CK73HB1H102K CHIP C 1000PF K C390,391 CK73GB1A105K CHIP C 1.0UF K C392 CK73HB1A333K CHIP C 0.033UF K

C393 CK73FB0J106K CHIP C 10UF K C395 CC73HCH1H221J CHIP C 220PF J C396 CK73HB1A104K CHIP C 0.10UF K C397 CK73GB1C474K CHIP C 0.47UF K C399 CC73HCH1H101J CHIP C 100PF J

If a part reference number is listed in a shaded box, that part does not come with the PCB.

TK-2302/2302(V)/2306

19

PARTS LIST



nationNewparts

TX-RX UNIT (X57-7570-20)

L213 L41-5678-14 SMALL FIXED INDUCTOR (56NH) L214 L41-2778-14 SMALL FIXED INDUCTOR (27NH) L216 L41-2778-14 SMALL FIXED INDUCTOR (27NH) L301 ✽ L92-0472-05 CHIP FERRITE L302-304 L92-0138-05 CHIP FERRITE

L305 L92-0140-05 CHIP FERRITE L306 L40-2775-71 SMALL FIXED INDUCTOR (27NH) X1 ✽ L77-3042-05 TCXO (12.8MHZ) X301 ✽ L78-1433-05 RESONATOR (14.746MHZ) XF201 L71-0619-05 MCF (38.85MHZ/6.5KH)

CP1 RK75HA1J101J CHIP-COM 100 J 1/16W CP201 RK75HA1J104J CHIP-COM 100K J 1/16W CP202 RK75HA1J474J CHIP-COM 470K J 1/16W CP203 RK75HA1J104J CHIP-COM 100K J 1/16W CP204 RK75HA1J474J CHIP-COM 470K J 1/16W

CP301,302 RK75HA1J473J CHIP-COM 47K J 1/16W CP303,304 RK75HA1J102J CHIP-COM 1.0K J 1/16W R1 RK73HB1J223J CHIP R 22K J 1/16W R2 RK73HB1J103J CHIP R 10K J 1/16W R3 RK73HB1J473J CHIP R 47K J 1/16W

R4 RK73HB1J104J CHIP R 100K J 1/16W R5 RK73HB1J154J CHIP R 150K J 1/16W R7 RK73HB1J000J CHIP R 0.0 J 1/16W R8 RK73HB1J101J CHIP R 100 J 1/16W R9 RK73HB1J222J CHIP R 2.2K J 1/16W

R10 RK73HB1J102J CHIP R 1.0K J 1/16W R11 RK73HB1J334J CHIP R 330K J 1/16W R12 RK73HB1J221J CHIP R 220 J 1/16W R13 RK73HB1J101J CHIP R 100 J 1/16W R14 RK73HB1J100J CHIP R 10 J 1/16W

R15 RK73HB1J561J CHIP R 560 J 1/16W R16 RK73HB1J000J CHIP R 0.0 J 1/16W R17 RK73HB1J152J CHIP R 1.5K J 1/16W R18 RK73HB1J681J CHIP R 680 J 1/16W R19 RK73HB1J223J CHIP R 22K J 1/16W

R20 RK73HB1J000J CHIP R 0.0 J 1/16W R21,22 RK73HB1J103J CHIP R 10K J 1/16W R26 RK73HB1J273J CHIP R 27K J 1/16W R27 RK73HB1J824J CHIP R 820K J 1/16W R28 RK73HB1J102J CHIP R 1.0K J 1/16W

R29 RK73HB1J154J CHIP R 150K J 1/16W R30 RK73HB1J104J CHIP R 100K J 1/16W R31 RK73HB1J274J CHIP R 270K J 1/16W R32 RK73HB1J684J CHIP R 680K J 1/16W R33 RK73HB1J101J CHIP R 100 J 1/16W

R34 RK73HB1J181J CHIP R 180 J 1/16W R35 RK73HB1J680J CHIP R 68 J 1/16W R36 RK73HB1J101J CHIP R 100 J 1/16W R37 RK73HB1J472J CHIP R 4.7K J 1/16W R38 RK73HB1J154J CHIP R 150K J 1/16W

R39 RK73HB1J101J CHIP R 100 J 1/16W R40 RK73HB1J100J CHIP R 10 J 1/16W R41 RK73HB1J102J CHIP R 1.0K J 1/16W R42,43 RK73HB1J332J CHIP R 3.3K J 1/16W R44 RK73HB1J220J CHIP R 22 J 1/16W

R45 RK73HB1J331J CHIP R 330 J 1/16W R46 RK73HB1J222J CHIP R 2.2K J 1/16W R47 RK73HB1J472J CHIP R 4.7K J 1/16W R101,102 RK73HB1J103J CHIP R 10K J 1/16W R103 RK73HB1J331J CHIP R 330 J 1/16W

R104 RK73HB1J220J CHIP R 22 J 1/16W R105 RK73HB1J331J CHIP R 330 J 1/16W R106 RK73HB1J180J CHIP R 18 J 1/16W R107 RK73HB1J331J CHIP R 330 J 1/16W R108 RK73HB1J473J CHIP R 47K J 1/16W

R109 RK73HB1J271J CHIP R 270 J 1/16W R110 RK73HB1J104J CHIP R 100K J 1/16W R111 RK73HB1J822J CHIP R 8.2K J 1/16W R113 RK73HB1J331J CHIP R 330 J 1/16W R114 RK73GB2A000J CHIP R 0.0 J 1/10W

R116 RK73HB1J000J CHIP R 0.0 J 1/16W R117 RK73EB2ER39K CHIP R 0.39 K 1/4W R118 RK73HB1J222J CHIP R 2.2K J 1/16W R119 RK73HB1J473J CHIP R 47K J 1/16W R120 RK73EB2ER39K CHIP R 0.39 K 1/4W

R121 RK73HB1J470J CHIP R 47 J 1/16W R122 RK73HB1J104J CHIP R 100K J 1/16W R123 RK73EB2ER39K CHIP R 0.39 K 1/4W R124,125 RK73GH2A154D CHIP R 150K D 1/10W R126,127 RK73GH2A334D CHIP R 330K D 1/10W

R128 RK73HB1J105J CHIP R 1.0M J 1/16W R129 RK73HB1J473J CHIP R 47K J 1/16W R130 RK73HB1J000J CHIP R 0.0 J 1/16W R131 RK73HB1J563J CHIP R 56K J 1/16W R132 RK73HB1J104J CHIP R 100K J 1/16W

R133 RK73HB1J474J CHIP R 470K J 1/16W R134 RK73GB2A151J CHIP R 150 J 1/10W R201 RK73HB1J184J CHIP R 180K J 1/16W R203 RK73HB1J472J CHIP R 4.7K J 1/16W R204 RK73HB1J823J CHIP R 82K J 1/16W

R205 RK73HB1J100J CHIP R 10 J 1/16W R206 RK73HB1J272J CHIP R 2.7K J 1/16W R207 RK73HB1J332J CHIP R 3.3K J 1/16W R208 RK73HB1J823J CHIP R 82K J 1/16W R209 RK73HB1J332J CHIP R 3.3K J 1/16W

R210,211 RK73HB1J472J CHIP R 4.7K J 1/16W R212 RK73HB1J101J CHIP R 100 J 1/16W R213 RK73HB1J184J CHIP R 180K J 1/16W R214 RK73HB1J471J CHIP R 470 J 1/16W R215 RK73HB1J391J CHIP R 390 J 1/16W

R216 RK73HB1J561J CHIP R 560 J 1/16W R217 RK73HB1J221J CHIP R 220 J 1/16W R218,219 RK73HB1J104J CHIP R 100K J 1/16W R220 RK73HB1J560J CHIP R 56 J 1/16W R222,223 RK73HB1J000J CHIP R 0.0 J 1/16W

R224 RK73HB1J222J CHIP R 2.2K J 1/16W R225 RK73HB1J470J CHIP R 47 J 1/16W R226 RK73HB1J221J CHIP R 220 J 1/16W R228 RK73HB1J563J CHIP R 56K J 1/16W R229 RK73HB1J100J CHIP R 10 J 1/16W

R230 RK73HB1J000J CHIP R 0.0 J 1/16W R231 RK73HB1J102J CHIP R 1.0K J 1/16W R301 RK73HH1J474D CHIP R 470K D 1/16W R302 RK73GB2A000J CHIP R 0.0 J 1/10W R303 RK73HB1J101J CHIP R 100 J 1/16W

R304 RK73HB1J334J CHIP R 330K J 1/16W R305 RK73HH1J474D CHIP R 470K D 1/16W R306 RK73HB1J184J CHIP R 180K J 1/16W R307 RK73GB2A271J CHIP R 270 J 1/10W R308 RK73GB2A221J CHIP R 220 J 1/10W

TK-2302/2302(V)/2306

20


Newparts

PARTS LIST


Newparts

TX-RX UNIT (X57-7570-20)

R309,310 RK73GB2A000J CHIP R 0.0 J 1/10W R313 RK73HB1J102J CHIP R 1.0K J 1/16W R314,315 RK73HB1J103J CHIP R 10K J 1/16W R316 RK73HB1J222J CHIP R 2.2K J 1/16W R317 RK73HB1J472J CHIP R 4.7K J 1/16W

R318 RK73HB1J182J CHIP R 1.8K J 1/16W R319 RK73HB1J000J CHIP R 0.0 J 1/16W R320 RK73HB1J123J CHIP R 12K J 1/16W R321 RK73HB1J103J CHIP R 10K J 1/16W R323 RK73HB1J102J CHIP R 1.0K J 1/16W

R324,325 RK73HB1J472J CHIP R 4.7K J 1/16W R340-342 RK73HB1J103J CHIP R 10K J 1/16W R344 RK73HB1J474J CHIP R 470K J 1/16W R345 RK73HB1J273J CHIP R 27K J 1/16W R347 RK73GB2A000J CHIP R 0.0 J 1/10W

R348 RK73HB1J102J CHIP R 1.0K J 1/16W R349 RK73HB1J105J CHIP R 1.0M J 1/16W R350 RK73HB1J124J CHIP R 120K J 1/16W R351 RK73HB1J334J CHIP R 330K J 1/16W R352 RK73HB1J104J CHIP R 100K J 1/16W

R353 RK73HB1J123J CHIP R 12K J 1/16W R354 RK73HB1J334J CHIP R 330K J 1/16W R355 RK73HB1J124J CHIP R 120K J 1/16W R356 RK73HB1J472J CHIP R 4.7K J 1/16W R357 RK73HB1J563J CHIP R 56K J 1/16W

R358 RK73HB1J474J CHIP R 470K J 1/16W R359 RK73HB1J473J CHIP R 47K J 1/16W R360 RK73HB1J332J CHIP R 3.3K J 1/16W R361 RK73GB2A000J CHIP R 0.0 J 1/10W R362 RK73HB1J184J CHIP R 180K J 1/16W

R363,364 RK73HB1J104J CHIP R 100K J 1/16W R365 RK73HB1J332J CHIP R 3.3K J 1/16W R366 RK73HB1J154J CHIP R 150K J 1/16W R367 RK73HB1J393J CHIP R 39K J 1/16W R368 RK73GB2A000J CHIP R 0.0 J 1/10W

R369 RK73HB1J823J CHIP R 82K J 1/16W R370 RK73HB1J102J CHIP R 1.0K J 1/16W R371 RK73HB1J272J CHIP R 2.7K J 1/16W R372 RK73HB1J000J CHIP R 0.0 J 1/16W R373 RK73HB1J224J CHIP R 220K J 1/16W

R374 RK73HB1J123J CHIP R 12K J 1/16W R375 RK73HB1J182J CHIP R 1.8K J 1/16W R376 RK73HB1J471J CHIP R 470 J 1/16W R377 RK73HB1J473J CHIP R 47K J 1/16W R378 RK73HB1J561J CHIP R 560 J 1/16W

R379 RK73HB1J102J CHIP R 1.0K J 1/16W R380 RK73HB1J474J CHIP R 470K J 1/16W R381 RK73HB1J151J CHIP R 150 J 1/16W R383 RK73HB1J563J CHIP R 56K J 1/16W R384 RK73HB1J333J CHIP R 33K J 1/16W

R385 RK73GB2A101J CHIP R 100 J 1/10W R387 RK73HB1J104J CHIP R 100K J 1/16W R388 RK73HB1J101J CHIP R 100 J 1/16W R389 RK73HB1J000J CHIP R 0.0 J 1/16W R390 RK73GB2A000J CHIP R 0.0 J 1/10W

R391 RK73HB1J102J CHIP R 1.0K J 1/16W R393 RK73GB2A000J CHIP R 0.0 J 1/10W R394 RK73HB1J473J CHIP R 47K J 1/16W R398 RK73HB1J000J CHIP R 0.0 J 1/16W VR1 ✽ R32-0737-05 SEMI FIXED VARIABLE RESISTOR

S1-3 S70-0414-05 TACT SWITCH

MIC301 2A T91-0651-15 MIC ELEMENT (ECM)

D3,4 1SV325F VARIABLE CAPACITANCE DIODE D6 1SV325F VARIABLE CAPACITANCE DIODE D8 1SV325F VARIABLE CAPACITANCE DIODE D9 1SV278F VARIABLE CAPACITANCE DIODE D10 MC2858 DIODE

D101 UDZW5.1(B) ZENER DIODE D103 HSC277 DIODE D104,105 HVC131 DIODE D202-205 1SV305F VARIABLE CAPACITANCE DIODE D301 GN1G DIODE

D302 ✽ HRC0203C DIODE D306 ✽ KDR731 DIODE D307 MC2850 DIODE D308,309 ✽ KDR731 DIODE IC1 MB15A02PFV2E1 MOS-IC

IC2 UPB1509GV BI-POLAR IC IC101 ✽ BA2904FVM MOS-IC IC201 TA31136FNG MOS-IC IC301 BD4840FVE MOS-IC IC303 XC6209B502PR MOS-IC

IC304 ✽ XC6209B502MR MOS-IC IC305 BR24L16F-W ROM IC IC306 ✽ R5F212CCKCMB MICRO CONTROL UNIT IC308 AQUA-L MOS-IC IC309 TA7368FG MOS-IC

Q1 ✽ KTC4075E(Y,GR) TRANSISTOR Q2 ✽ 2SC4774 TRANSISTOR Q3 2SC5636 TRANSISTOR Q4,5 2SK1875-F(V) FET Q6 ✽ KTC4075E(Y,GR) TRANSISTOR

Q7,8 RT1P430U TRANSISTOR Q9 2SC5636 TRANSISTOR Q10 ✽ KTC4075E(Y,GR) TRANSISTOR Q11 2SC5636 TRANSISTOR Q101 2SC4926YD TRANSISTOR

Q102 RQA0004PXDQS FET Q103 RT1N441U TRANSISTOR Q105 RD07MVS1BT122 FET Q106 RT1N441U TRANSISTOR Q107 2SK1824-A FET

Q108 RT1P441U TRANSISTOR Q201 RT1P441U TRANSISTOR Q202 ✽ 2SC4774 TRANSISTOR Q203,204 3SK318 FET Q301,302 RT1N441U TRANSISTOR

Q303 RT1P141U TRANSISTOR Q304 ✽ DTB723YE DIGITAL TRANSISTOR Q305,306 2SC4919 TRANSISTOR Q307 RT1N441U TRANSISTOR Q308 ✽ KTC4075E(Y,GR) TRANSISTOR

Q310 2SC4116(GR)F TRANSISTOR Q311 2SA1586(Y,GR)F TRANSISTOR Q312 RT1N441U TRANSISTOR Q313 ✽ 2SB1694 TRANSISTOR Q314 RT1N441U TRANSISTOR

Q315,316 2SK3577-A FET

TK-2302/2302(V)/2306

21

PARTS LIST



nationNewparts

TX-RX UNIT (X57-7570-20)

TH101 B57331V2104J THERMISTOR TH201 B57331V2104J THERMISTOR

TK-2302/2302(V)/2306

22

EXPLODED VIEW

Parts with the exploded numbers larger than 700 are not supplied.If a part reference number is listed in a box on the exploded view of the PCB, that part does not come with the PCB.These parts must be ordered separately.

3

2

1

BA

57

5455

52

561

11

10

9

22

21

34

67

35

49

1617

ETX-RX unit

Ex10

A

C

C

B

E

Dx2

701Model name plate

32

MIC301

51

29

CF201

6365

36

1333

25

2428

47

31

4615

2

19 30

2726

14

A : N14-0848-05 B : N14-0849-05C M2.6 x 4 : N30-2604-48 D M2.6 x 6 : N30-2606-48 E M2 x 5 : N83-2005-48

23

101

X57

X57

TK-2302/2302(V)/2306

23

PACKING (K,M TYPE)

Parts with the exploded numbers larger than 700 are not supplied.

3

2

1

DC

7 Instruction manual (B62-2109-00): AK,AM (B62-2111-00): BM (B62-2139-00): VK

702: AK,AM,VK

704 Protection bag

71 Charger (KSC-35) (W08-0988-05): AK,VK,AM74 Charger (KSC-31) (W08-1067-05): BM

75 AC adapter (W08-1075-05): BM

72 AC adapter (W08-0989-15): AK,VK73 AC adapter (W08-0992-05): AM

50 Belt hook (J29-0734-05)

4 Cap (B09-0725-03)

61 Screw set (N99-2046-05)

48 Holder (SP/MIC) (J29-5521-03)

39 Packing fixture (H12-4251-05)

42 Item carton case (H52-2300-13)

68 Helical antenna (T90-1036-15)

705 Battery assy (Ni-Cd): BM706 Battery assy (Li-ion): AK,VK,AM

*1

*2

*2

*1

AK: TK-2302 K VK: TK-2302(V) K AM: TK-2302 M

BM: TK-2306 M

TK-2302/2302(V)/2306

24

PACKING (P TYPE)

Parts with the exploded numbers larger than 700 are not supplied.

3

2

1

FE

7 Instruction manual (B62-2139-00)

703

704 Protection bag

50 Belt hook (J29-0734-05)

4 Cap (B09-0725-03)

61 Screw set (N99-2046-05)

48 Holder (SP/MIC) (J29-5521-03)

38 Packing fixture (H12-4250-05)

43 Item carton case (H52-2301-03)

40 Carton board (H13-2109-03)

70 AC adapter (W08-0970-35)

74 Charger (KSC-31) (W08-1067-05)

707 Battery assy (Ni-MH)

68 Helical antenna (T90-1036-15)

*1

*1

TK-2302/2302(V)/2306

25

Test Equipment Required for Alignment

Test Equipment Major Specifi cations

1. Standard Signal Generator (SSG)Frequency Range 136 to 174MHzModulation Frequency modulation and external modulationOutput –127dBm/0.1µV to greater than –47dBm/1mV

2. RF Power MeterInput Impedance 50ΩOperation Frequency 136 to 174MHzMeasurement Range Vicinity of 10W

3. Deviation Meter Frequency Range 136 to 174MHz

4. Digital Volt Meter (DVM)Measuring Range 10mV to 10V DCInput Impedance High input impedance for minimum circuit loading

5. Oscilloscope DC through 30MHz

6. High Sensitivity Frequency Counter

Frequency Range 10Hz to 1000MHzFrequency Stability 0.2ppm or less

7. DC Ammeter 5A

8. AF Volt Meter (AF VTVM)Frequency Range 50Hz to 10kHzVoltage Range 1mV to 10V

9. Audio Generator (AG)Frequency Range 50Hz to 5kHz or moreOutput 0 to 1V

10. Distortion MeterCapability 3% or less at 1kHzInput Level 50mV to 10Vrms

11. Spectrum Analyzer Measuring Range DC to 1GHz or more

12. Tracking GeneratorCenter frequency 50kHz to 600MHzOutput Voltage 100mV or more

13. 4Ω Dummy Load Approx. 4Ω, 3W

14. Regulated Power Supply 5V to 10V, approx. 3A Useful if ammeter equipped

■ Antenna connector adapterThe antenna connector of this transceiver uses an SMA

terminal.Use an antenna connector adapter [SMA(f) – BNC(f) or

SMA(f) – N(f)] for adjustment. (The adapter is not provided as an option, so buy a commercially-available one.)

■ Repair Jig (Chassis)Use jig (part No.: A10-4215-03) for repairing the transceiv-

er. Place the TX-RX unit on the jig and fi t it with screws.The jig facilitates the voltage check and protects the fi nal

amplifi er FET when the voltage on the fl ow side of the TX-RX unit is checked during repairs.

■ Battery Jig (W05-1011-00)Connect the power cable properly between the battery

jig installed in the transceiver and the power supply, and be sure output voltage and the power supply polarity prior to switching the power supply ON, otherwise over voltage and reverse connection may damage the transceiver, or the power supply or both.

Note: When using the battery jig, you must measure the voltage at the terminals of the battery jig. Otherwise, a slight voltage drop may occur within the power cable, be-tween the power supply and the battery jig, especially while the transceiver transmits.

+ Terminal (Red)

– Terminal (Black)

S

–

+

C1

100P

/25V

C2

470P

/25V

C3

100/

25V

R1

1.8M

+

+Terminal(Red)

–Terminal(Black)

Powersupply

Powercable

Schematic diagram

ADJUSTMENT

TK-2302/2302(V)/2306

26

Frequency and Signaling

The transceiver has been adjusted for the frequencies shown in the following table. When required, re-adjust them following the adjustment procedure to obtain the frequen-cies you want in actual operation.

■ Frequency (MHz)

Channel No. RX Frequency TX Frequency

1 155.050 155.100

2 136.050 136.100

3 173.950 173.900

4 155.000 155.000

5 155.200 155.200

6 155.400 155.400

7~16 - -

■ Signaling

Signaling No. RX TX

1 None None

2 None 100Hz Square Wave

3 QT 67.0Hz QT 67.0Hz

4 QT 151.4Hz QT 151.4Hz

5 QT 250.3Hz QT 250.3Hz

6 DQT D023N DQT D023N

7 DQT D754I DQT D754I

8 DTMF Decode [159D] DTMF Encode [159D]

9 None DTMF Tone 9

Preparations for Tuning the Transceiver

Before attempting to tune the transceiver, connect the unit to a suitable power supply.

Whenever the transmitter is tuned, the unit must be con-nected to a suitable dummy load (i.e. power meter).

The speaker output connector must be terminated with a 8Ω dummy load and connected to an AC voltmeter and an audio distortion meter or a SINAD measurement meter at all times during tuning.

■ Adjustment frequency

TEST CH RX TX

Center 155.050MHz 155.100MHz

Low 136.050MHz 136.100MHz

High 173.950MHz 173.900MHz

Low’ 145.550MHz 145.600MHz

High’ 164.550MHz 164.600MHz

■ List of FPU for transceiver

Model Type FPU

TK-2302 K,M KPG-118D(K)

TK-2302 P KPG-119D(K)

TK-2302(V) K KPG-119D(K)

TK-2306 M KPG-118D(M)

ADJUSTMENT

Fig. 1 Center frequency

Fig. 2 High-edge frequency

Fig. 3 Low-edge frequency

TK-2302/2302(V)/2306

27

ADJUSTMENT

Common Section

Item Condition

Measurement Adjustment

Specifi cations / RemarksTest-equipment

Unit Terminal Unit Parts Method

1. Setting 1) BATT terminal votage: 7.5V2) SSG standard modulation [Wide] MOD: 1kHz, DEV: 3kHz [Narrow] MOD: 1kHz, DEV: 1.5kHz

2. VCO lock voltage

RX

1) CH: High Power meterDVM TX-RX

ANT

LV (CV)

TX-RX TC1 4.0V ±0.1V

2) CH: Low Check 0.6V or more

3. VCO lock voltage

TX

3) CH: High PTT: ON

TX-RX TC2 4.1V ±0.1V

4) CH: Low PTT: ON

Check 0.6V or more

Transmitter Section

Item Condition




1. Frequency Adjust

1) CH: High PTT: ON

f. counter ANT TX-RX VR1 173.900MHz ±50Hz

2. High Transmit

Power

1) TEST CH: Low, Low’, Center, High’, High (5 points)

BATT terminal voltage: 7.5V PTT: ON

Power meterAmmeter

FPU 5.0W±0.1W2.0A or less

3. Low Transmit

Power

1) TEST CH: Low, Low’, Center, High’, High (5 points)

BATT terminal voltage: 7.5V PTT: ON

1.0W±0.1W1.0A or less

4. Maximum Deviation

[Wide]

1) TEST CH: Center, Low, High (3 points)

AG: 1kHz/150mV Deviation meter fi lter LPF: 15kHz HPF: OFF PTT: ON

Power meterDeviation meterOscilloscope

AGAF VTVM

ANT

SP/MIC connector

4.4kHz (According to the lager +, –)

±80Hz

[Narrow] 2) TEST CH: Center PTT: ON

2.2kHz (According to the lager +, –)

±80Hz

5. DQT Balance

[Wide]


Deviation meter fi lter LPF: 3kHz HPF: OFF PTT: ON

Make the demodu-lation wave into square waves.


TK-2302/2302(V)/2306

28

ADJUSTMENT

Item Condition




6. QT Fine Deviation [Wide]



Power meterDeviation meterOscilloscope

AGAF VTVM

ANT

SP/MIC connector

FPU 0.75kHz ±40Hz


0.38kHz ±40Hz

7. DQT Fine Deviation [Wide]



0.75kHz ±40Hz


0.38kHz ±40Hz

8. DTMF Fine Deviation [Wide]

1) TEST CH: Center Deviation meter fi lter LPF: 15kHz HPF: OFF PTT: ON

3.0kHz ±100Hz


1.5kHz ±100Hz

9. MSK Fine Deviation [Wide]

1) TEST CH: Center Deviation meter fi lter LPF: 15kHz HPF: OFF PTT: ON

3.0kHz ±100Hz


1.5kHz ±100Hz

Receiver Section

Item Condition




1. BPF Wave Adjust

1) Center frequency Spectrum analyzer setting Center-f: 155MHz Span: 200MHz RBW: 30kHz VBW: 30kHz ATT: 10dB2) High-edge frequency Spectrum analyzer setting Center-f: 174MHz3) Low-edge frequency Spectrum analyzer setting Center-f: 136MHz

SSG

Spectrumanalyzer

TX-RX

ANT

BPF

FPU Adjust the waveform as shown to the Fig. 1~3.

TK-2302/2302(V)/2306

29

ADJUSTMENT

Item Condition




2. Sensitivity [Wide]

1) TEST CH: Low, Center, High (3 points)

SSG otuput : –117dBm (0.3µV) SSG MOD: 3.0kHz

SSG

DVMOscilloscopeAF VTVM

ANT

SP/MIC connector

Check 12dB SINAD or more

[Narrow] 2) TEST CH: Center SSG otuput : –115dBm (0.4µV) SSG MOD: 1.5kHz

3. Squelch Open

[Wide]



FPU Write

[Narrow] 2) TEST CH: Center SSG otuput : –122dBm (0.18µV) SSG MOD: 1.5kHz

4. Squelch Tight

[Wide]



[Narrow] 2) TEST CH:Center SSG otuput : –116dBm (0.35µV) SSG MOD: 1.5kHz

5. Battery Warning Level

1) BATT terminal voltage: 5.9V SSGDVM TX-RX

ANTBATT terminal

Write BATT terminal voltage: 5.9V

Adjustment Points

■ Component side view

BATT+

LV

ANTBPF

BPF: BPF Wave AdjustLV (CV): VCO lock voltageBATT+: Battery Warning Level

■ Foil side view

TC2 TC1

S1PTT

S2SIDE1

S3SIDE2

J301EXT. SP/EXT. MIC

VR1

TC1 : VCO lock voltage (RX)TC2 : VCO lock voltage (TX)VR1 : Frequency adjustment

30

JIHGFEDCBA

1

2

3

4

5

6

7

8

9

10

11

12

13

14

C44

C45

C213

C414

F301

C3

Q304

L304

R309

R310

R316

R317

R319

R324

MIC301

C303

BATT+

C310

R12

C318

R17

C321

R20R21

Q1

R26

R27

C331

R30

C337

C339

R2 R3

IC303

CP301

CP303

R201

RXD TXD

A4A1

A6A5A3

A2

1

4 5

8

THDET

MDSW

5M

3 4

51

LV

+ + +

+ –

C36

C39

C418

C1

C8

C9

Q305

Q306

L301

L303

L306

R301

R304

R305

R306

R313

R314

R315R

318

CN302RESET

CN303MODE

R320

R321

R323

X301

C316

C319

R19

C327

C332 C

334C335

R1

IC301

3 1

4 5

IC305

IC306

CP302

CP1

C10

R210

C27

C30

CN

201B

US

Y

C32

CN

202R

SS

I

CN

203B

PF

C35

C201

TH201

C210

Q303

Q307

L7

R325

IC1 R14

R15

R16

R18 R

22

R7

C341

Q201

C11

C15

R209

C2

C320

C4

C6

VOX

QTI

GND

SB

1

2021 40

41

606180

AFMUTE

AFCONT

B

GND

GND

5R

W/N

5C

PTT

MOD

LD

1011

120

TK-2302/2302(V)/2306 PC BOARD

TX-RX UNIT (X57-7570-20) Component side view (J79-0186-09)

Ref. No. Address

IC1 9G

IC101 4N

IC301 6B

IC303 6H

IC305 5C

IC306 7D

IC309 7O

Q1 8H

Ref. No. Address

Q103 4M

Q106 3M

Q107 3M

Q108 4M

Q201 5G

Q301 6P

Q302 6P

Q303 5I

Ref. No. Address

Q304 6I

Q305 7B

Q306 8B

Q307 8H

Q312 8P

Q313 7P

Q314 8O

Q315 8O

Ref. No. Address

Q316 8O

D101 4M

D303 8S

D304 8S

31

J K L M N O P Q R S

1

2

3

4

5

6

7

8

9

10

11

12

13

14

S

GD

D

G

S

D

GS

C400

C404

C405

C415

Q106

Q107

Q108

Q301

Q302

Q316

L302

R302

R303

R307

R308

R116

R117

R120

R123

CN301

R132

IC301

C304

C305

C307

C311

C313

C315

C130

C325

C140

R377

R378

R381

R383

R385

R387

R388

R389

D303

D304

C395

C396

C397

CP304

5T–

PCTV

+

ANT

1 11EN

5EN

4EN

3G

ND

EN2

EN1

AFV

OLG

ND

AFV

OLO

UT

AFV

OLIN

SB

BC

402

C403

Q103

Q312

Q313

Q314

Q315

L117

R111

R118 R

124

R125

R126

R128R

129

R130

R131

R133

C103

TH101

C107

C109

C122

C124

C320

C322

C136

R379

R380

R384

R390

D101

R393

IC101

45

18

IC309

C399

R127

C131

SP–

SP+

56

110

J79-0186-09

TXD

AE

SPI

SPO

NC

5M OPTDET MIC

PTT/RXD

MICIN

TX-RX UNIT (X57-7570-20) Component side view (J79-0186-09)

PC BOARD TK-2302/2302(V)/2306

Component side

Foil side

Layer 1Layer 2Layer 3Layer 4

32

JIHGFEDCBA

1

2

3

4

5

6

7

8

9

10

11

12

13

14

DG

R2

R2R225

R226

R229R230

C49

C56

C59

C40

C64

C76

C23

C243

C245

C247C249

TC

C250C254

C255

G

G

S

D

C257

Q101

E

C E

B

D4

Q105D G

C260

D9

L104

L108

L110

L112L113

L116

CP202

CP204

R102

R104

R106R110

R134

L10

L14

C101

C102

L17

C106

C110

C118

S1PTT

S2SIDE1

S3SID

Q8

R31

R32

C143

C146 C148

C150

C151C154

C158

Q204

L216


TXD

AE

SPI

SPO

NC

5MOPTDETMIC

PTT/RXD

MICIN

R222

R223

R224

R228

C244

C246

C248C

251

C252

C258

C259

C261

C262

D202

C263

D203

C264

D204

C265

D205

L102

L103

L105

L106

L107

L111

L114

R103

R105

R107

R108

R109

R113

R114

R119

R121

R122

C108C

114

C119

C120

C123

C125

C127

C129

C134

C135

C145

C149

C152

C153

C155

C156 C

157

D103

D104

D105

L209

L210

L211

L213

L214 R220

C53

C58

C61

C66

C72

C77

C228

C80

D8

L109

L115

CP201

CP203

L15

L21

C132

C138

C139

Q5

C141

R33

Q102

D S G

J79-0186-09

TK-2302/2302(V)/2306 PC BOARD

TX-RX UNIT (X57-7570-20) Foil side view (J79-0186-09)

Ref. No. Address

IC2 6K

IC201 6N

IC304 9P

IC308 8P

Q2 8N

Q3 7L

Q4 9L

Q5 8J

Q6 7K

Ref. No. Address

Q7 8K

Q8 7J

Q9 7K

Q10 7K

Q11 5L

Q101 6I

Q102 7H

Q105 7F

Q202 5N

Ref. No. Address

Q203 4K

Q204 5G

Q308 7R

Q310 7R

Q311 7R

D3 10K

D4 9J

D6 10K

D8 9I

Ref. No. Address

D9 8J

D10 5L

D103 5D

D104 4E

D105 4D

D202 4I

D203 4H

D204 4F

D205 4F

Ref. No. Address

D301 4R

D302 10P

D306 8R

D307 8Q

D308 7Q

D309 7Q

33

J K L M N O P Q R S

1

2

3

4

5

6

7

8

9

10

11

12

13

14

D SG

D SG

R211

C25

XF201

R214

R215

C29

R217R218

R219

C31

R231

C51

C202

C204

C205

6

C206

C57

CD201

C209

9

C212

C62

C63

C408

C64

C215

C217

C413

C70

C221

C223

C225

C75

C226

C76C78

C229

C231

C81

45

18

C82

C83

C86

C236

C88

C238

C89CF201

C5

TC2

TC1

G

G

S

D

D3

D4

D9

Q308

Q310

Q311

L305

IC201

D10

L1

L2

L6

L10

L12

L13

C101

C102

L17

L18

L22

L23

L24

R340

R344

R345

R348

R10

R351R353

R354

R355

R356

R357

R358

R362

S3SIDE2

R368

R369

R29

Q6

Q8

R370

R371

R31

R32

R35

R375

R376

R38

R4

R39

R40R41

R43

R46

C353

C355

C358

R394

Q203 D301

D302

D306

C367

D307

D308

C369

D309

L201

L204

C370

C371

L206

C372

L207

C373

C374

C378

C381

C385

C386

IC308

1

910 16

17

252632

C390

C392

C393

X1

C12

C14

R203

C18

R205

R207

R208

R220

C61

C66

C77

C228

CP201

R101

L21Q

5

C23

R212

C26

R213

R216

C33

C40

C41

C42C

47C

50

C52

C203

C207

C208

C60

C211

C214

Q10

Q11

C65

C216

C67

C68

C71

C224

C74

C227

C79

C230C

232

C233

C84

C235

C87

C237

C7

D6

L4

L8

L9L11

L16

L19

L20

R11

R13

Q2

Q3

R28

Q4

Q7

R34

R36

R37

R5R9

R42

R44

R45

R47

C359

Q202

C360

C368

L202

L203

L205

C13

C16

C17

R204

R2068

9

116

C220

C73

IC2

C306

R347

R349

C312

R350

R352R

359

C323

R360

R361

R363

R364

R365 R

366

R367

Q9

R372

R373

R8

VR

1

R398

C361C

362

C363

C364

C365

C366

C375

C376

C377

C379

C380

C382

C383

C384

IC304 3

4

15

C388

C389

C391

CN

304M

DS

W

R341

R342

R374

C354

R391

C356

TX-RX UNIT (X57-7570-20) Foil side view (J79-0186-09)

PC BOARD TK-2302/2302(V)/2306

Component side

Foil side


34

TK-2302/2302(V)/2306 SCHEMATIC DIAGRAM

X57-757 1/4

7

6

5

4

3

2

1

A B C D E

EN3

EN4

EN5

EN2

EN1

C31

9

1000

p

C32

7

1000

p

R306

180k

C31

8

0.01

u

C31

2

1000

p

C32

1

1u

C35

0.1u

35

C18

18p

C27

0.33

u35

C25

30p

C12

1000

p

R15

560

R14 10

C10

100p

R12

220

R20

0

R28 1k

R13

100

L7

R8

100

C7

10p

C14

0.01

u

C31

0.01uC

5

1000

p

L4 560n

C26

2p(B)

C4

0.1u

C9

100p

R9

2.2k

R10 1k

R22

10k

C16

47p

C13

10p

R29

150k

R18

680C

8

100p

C29

27p

R17

1.5k

C30

1000

p

C51

10p

R11

330k

R30

8

220

C32

5

1000

p

R1

22k

C32

0

1000

p

R30

7

270

L301

C31

310

0p

C30

510

0p

C30

40.

1u

C31

110

0p

D30

1

GN

1GC

307

100p

C33

470p

C31

0

1u

R5

150k

R4

100k

C1

3300

p

C2

6800

p

R2

10k

R3

47k

C32

3.3u

16

D303B30-2315-05

D304B30-2314-05

C3

1u

R303 100

R301

470k(D)

R30

5

470k

(D)

R304

330k

R70

Q301RT1N441U

Q302RT1N441U

C32

3

1u

S1

S2

S3

C32

2

1000

pC

50

470p

C42

6p(B

)

C40

6p(B

)

C41

4p(B)

C47

15p

1oS

CIN

2N

C1

3oS

CoU

T4

VP

5V

CC

6D

o7

GN

D8

LD9

NC

210

FIN

11C

LoC

K

12N

C3

13D

ATA

14LE

15FC

16N

C4

17Fo

UT

18P

19N

C5

20R

C31

510

0p

X1

12.8MHz

L77-3042-05

1VCoNT

2GND

3oUTPUT

4VCC

R16 0

R302 0

VR

110

0k

1Vo

UT

2S

UB

3N

C4

GN

D

5V

DD

1VIN

2VSS

3CE

4NC

5VoUT

C31

6

1000

p

L6 560n

L2

4.7u

L1

L9

F301F53-0324-05

2.5A

CP1RK75HA1J101J

C11

10u

C17

0.01

u

C15

0.01

u

C23

0.01

u

1N

C2

VS

S3

CE

4V

IN

5Vo

UT

C30

6

1u

L302

L8

18n

L12

33n

CN301

1 B

2 SB

3 AFVOLIN

4 AFVOLOUT

5 AFVOLGND

6 EN1

7 EN2

8 GND

9 EN3

10 EN4

11 EN5

C6

0.01u

B

C30

3

1000

p

R393

0

CV

Side1

Side2

LR

SIDE2

LG

GND

PTT

PTT

SIDE1

BATT

BATT

TXCO

REVERSEVOLTAGEPROTECTION

TX-RX UNIT (X57-7570-20)

DC SW/RED COLOR LED

5M

PLL_UL

EN1

LEDRX

EN3

5T

SB

5C_C

B

EN2

5R_C

PLL_CLK

5T_C

PLL_DAT

QTTCXO

BATT

EN5

5C

EN4

LEDTX

RESET

PLL_STB

5R

PLL_DAT

PLL_STB

PLL_CLK

2ND_LO

AFVOLIN

SIDE1PTT

INT

SIDE2

QTTCXO

PLL_DATPLL_STB

PLL_CLK

PLL_UL

B

5C

AFVOLOUT

DC SW/GREEN COLOR LED

RED COLOR LED GREEN COLOR LED

IC301BD4840FVE

VOLTAGEDETECTOR/RESET

D302

HRC0203C

RECTIFICATIONIC304

XC6209B502MR

VOLTAGEREGULATOR/5V

IC303XC6209B502PR

VOLTAGEREGULATOR/5V

KTC4075E(Y,GR)Q1

RECTIFICATION

2SC4774Q2

TRIPLER

2SC5636Q3

RF AMP

Q304DTB723YE

DC SW/5T

Q303RT1P141U

DC SW/5R

IC1MB15A02PFV2E1

PLL SYSTEM IC

0.66V

4.92V5.0V

2.86V

4.48V

4.92V

R:3.78VT:3.47V

5.0V

5.03V

R:4.84V

T:5.0V

R:7.6VT:7.45V

ON:5.02VOFF:0V

ON:4.88VOFF:0V

T:7.35VT:7.22V

35

SCHEMATIC DIAGRAM TK-2302/2302(V)/2306

X57-757 2/4

JIHGF

L21

TC2

10p

C71

0.5p(B)

C57 9p (B)

C70

0.5p(B)

D4

1SV

325F

C67

6p(B

)

C75

470p

C76

10u6

.3

C65

5p(B

)

C77

1000

p

C53

180p

R34

180

R30

100k

R37

4.7k

D8

1SV325F

D6

1SV325F

R32

680k

C58 2p (B)

TC1

10p

C61

5p(B

)

C56

6p(B

)

C78

33p

R35 68D9

1SV278F

C52

120p

R39

100D

3

1SV

325F

C68

470p

R26

27k

C44

1u

R27

820k

C36

3300

p

C39

6800

p

L303

C334

0.01u

L304

C332

5p(B)

R31

8

1.8k

R319

0

C337

5p(B)

R31

6

2.2k

R19

22k

R21

10k

R31

7

4.7k

R31

510

k

R38

150k

R31

270k

C60

4.5p

(B)

L11

180n

L16

22n

C59

2.5p (B) C74

1000

p

C635p(B)

C62

470p

C73

0.1u

C79

470p

L10

180n

L15

33n

C646p(B)

C72

0.1u

C66

470p

R33

100

1A0

2A1

3A2

4GND

5SDA

6SCL

7WP

8VCC

C80

470p

R32

0

12k

CP

303

RK

75H

A1J

102J

R43

3.3k

C86

1000

p

C81

15p

R42

3.3k

R44 22

C45

1u

X301

14.746MHzL78-1433-05

2SC4919Q305

R31

4

10k

R321

10k

CP

302

RK

75H

A1J

473J

C335

10u

L18

270n

L17

270n

L20

180n

L19

180n L2

2

39n

L13

180n

L14

180n

R36

100

15T

_C2

PLL

_STB

35C

_C4

5R_C

5W

/N6

MO

DE

7A

F_C

ON

T8

BS

HIF

T9

RE

SE

T10

XO

UT

11V

SS

12X

IN13

VC

C14

QTT

CX

O15

QTV

CO

16A

UX

617

AU

X5

18A

UX

419

AU

X3

20A

UX

2

21AUX1

22MIC_MUTE

23AF_MUTE

24LED_BLUE

25NC

26NC

27NC

28NC

29NC

30NC

312TONE

32NC

33RXDATA

34TXDATA

35OPTDET

36TX_SW

37RX_SW

38

LEDRX

39

LEDTX

40

APC_SW

41D

C_S

W

42S

TD

431/

2_O

SC

44IN

T

45TX

D

46R

XD

47D

IR

48D

I/O

49D

TRLO

AD

N

50TD

ATA

/DTR

CLK

51S

CLK

52TC

LK/D

TRD

O

53R

DF/

FD

54M

DS

W

55P

TT

56S

IDE

1

57S

IDE

2

58E

N5

59E

N4

60E

N3

61EN2

62EN1

63DEST1

64DEST2

65PLL_UL

66BATT

67RSSI

68BUSY

69VOX

70QT/DQT_IN

71EEPCLK

72EEPDAT

73TH_DET

74DTMF

75AVSS

76PCTV

77VREF

78AVCC

79 PLLDAT

80 PLLCLK

R323

1k

C33

1

0.1u

R310

0

R313

1k

R309

0

CP

301

RK

75H

A1J

473J

RESET MODE

PCTV

MDSW

LD

VOX

QTI

MICMUTE

AFMUTE

THDET

AFCONT

PTTSW

TXD

RXD

IC2UPB1509GV

1VCC1

2IN

3IN

4GND

5SW1

6SW2

7OUT

8VCC2

C82

470p

L23

R40 10

C83

470p

R41

1k

C84

1000p

R391

1k

R394

47k

C413

1000p

C41

4

1000

p

C41

8

39p

L306

27n

C49

0.5p

(B)

VCO (TX)

VCO (RX)

PRESCALER

BEAT SHIFT SW

EN2

BATT

5C

EN1

EN5

5M

5C_C

PLL_DAT

LEDRX

2ND_LO

PLL_STB

PLL_CLK

5T_C

SIDE2

INT

EN4

SB

5R_C

5T

LEDTX

EN3

B

RESET

PLL_UL

5R

QTTCXO

PTT

AFVOLINAFVOLOUT

SIDE1

LEDTXLEDRX

SB

RSSIPCTV

5M

AF_CONT

MIC_MUTE

OPTDETTXD

PTT

QT/DQT_INVOX

W/N

APC_SWDC_SW

5RB

5C

DTRLOADN

5TTH_DET

DTMF

2ND_LO

AFVOLIN

W/N

STD1/2_OSC

PTT

TXDDIR

DI/O

TDATA/DTRCLKSCLKTCLK/DTRDORDF/FD

BUSY

MODMOD

2ND_LO

1/2_OSC

MODULATOR

AFVOLOUT

IC306R5F212CCKCMA

MCU

IC305BR24L16F-W

EEPROM

FREQUENCYCONTROL/RX VCO

D3,6

FREQUENCYCONTROL/TX VCO

D4,8

Q52SK1875-F(V)

VCO/TX

KTC4075E(Y,GR)Q6

RECTIFICATION

KTC4075E(Y,GR)Q10

RIPPLEFILTER

Q8RT1P430U

DC SW/TX VCO

2SK1875-F(V)Q4

VCO/RX

Q7RT1P430U

DC SW/RX VCO

2SC5636Q9

RF AMP

2SC4919Q306

BEAT SHIFT SW

R:3.42V

4.88V

0.75V

R:0.58VT:5.1V

R:5.02VT:0.58V

T:3.03V

3.82V

BSHIFT ON:4.98VOFF:0V

4.05V

TX-RX UNIT (X57-7570-20)

36

TK-2302/2302(V)/2306 SCHEMATIC DIAGRAM

X57-757 3/4

K L M N O

-t

-t

B

C10

3

1u

C37

9

1u

R125

150k(D)

R21

0

4.7k

R214

470

R13

1

56k

C217

0.01u

R12

9

47k

C20

4

1000

p

R12

6

330k

(D)

R12

8

1M

R20

8

82k

C20

5

1800

p

TH10

1

100k

R213

180k

C215

2p(B)

C13

0

1000

p

C369

0.1u

C131

100p

R124

150k(D)

D10

1

UD

ZW

5.1(

B)

R13

3

470k

C207

560p

C21

6

0.01

u

C225

0.01u

C21

0

0.1u

R11

7

0.39

R12

3

0.39

R12

0

0.39

R21

2

100

R132

100k

R127

330k(D)

C208

0.1u

CF201L72-0973-05

450 kHz

C14

0

1000

p

IC201TA31136FNG

1

oSC

IN

2

oSC

oUT

3

MIX

oUT

4

VC

C

5

IFIN

6

DE

C

7

FILo

UT

8

FILI

N

9A

FoU

T

10Q

UA

D

11IF

oUT

12R

SS

I

13N

-DE

T

14N

-RE

C

15G

ND

16M

IXIN

C20

1

0.22

u

C21

3

0.1u

C20

6

560p

R2073.3k

R118

2.2kR11

1

8.2k

C20

9

68p

R20

3

4.7k

R204

82k

C136

470p

C20

3

0.01

u

R20

6

2.7k

C374

1000p

R35

1

330k

R355

120k

C363

82p

R364

100k

C36

2

1000

p

R36

2

180k

R35

4

330k

C364

12p

C366

0.1uC384

0.1u

C382

0.015u

R369

82k

C381

390p

R363

100k

C37

3

120p

C386

0.01uC36

0

0.1u

R374

12k

C36

8

270p

C37

8

82p

C383

0.1u

C35

8

0.22

u

R37

6

470

R37

5

1.8k

C392

0.033u

C361

1u

R34

4

470k

C356

1000p

C365

120p

R353

12k

C35

5

0.01

u

R345

27k

R34

1

10k

R370

1kR352

100k

R356

4.7k

R209

3.3k

R349

1M

R20

1

180k

CD

201

L79-

1866

-05

Q201RT1P441U

C21

10.

1u

C21

40.

1uC372

1000pC390

1u

R367

39k

R366

150k

R365

3.3k

L201 1u

C367

1u

R13

0

0

C22

0

1p(B

)

C22

1

12p

R348

1k

R35

8

470k

R36

0

3.3k

R357

56k

R35

9

47k

TH20

1

100k

XF201L71-0619-0538.85 MHz

INoUT

R340

10k

C35

3

0.01

u

C35

4

0.01

u

R342

10k

C385

0.1u

R368

0

R361

0

C38

8

1000

p

C37

5

1000

p

C12

7

1u

R10

7

330

C11

4

1000

p

C12

2

1000

p

R11

9

47k

C13

2

10p

C10

6

1000

p L104

R10

8

47k

R47

4.7k

R10

3

330

R106

18

R10

1

10k

C10

1

1000

p C13

4

1000

p

R12

1

47

R10

9

270

R46

2.2k

L107

C13

5

0.1u

C10

9

0.1u

C87

1000

p

R102

10k

C12

9

1000

p

R45

330

C12

5

0.01

u

C88

1000

p

C12

3

1000

p

C89

100p

C10

7

1000

p

R10

5

330

R12

2

100k

R11

3

330

L106 9T

C11

8

1000

p

C21

2

1000

pR

211

4.7k

C22

9

6p(B

)

R215

390

C11

9

27p

R20

5

10

R32

4

4.7k

R325

4.7k

C339

1u

C34

1

1000

p

1A

GN

DIN

2TX

IN

3TX

INo

4LI

MLV

5E

XTL

IMIN

6M

oD

7V

DD

8D

TRLo

AD

N

9S

TD

10

TCLK/DTRDo

11

TDATA/DTRCLK12DI/o

13RDF/FD

14SCLK

15DIR

16XoUT

17X

IN

18V

SS

19A

MP

3P20

AM

P3N

21A

MP

3o22

AM

P4P

23A

MP

4N24

AM

P4o

25D

TRA

IN

26RXAF

27RXAFIN

28EXPoUT

29FILTERo

30RXINo

31RXIN

32AGND

R11

0

100k

C12

4

1u

C20

2

10u

RSSI

BUSY

C39

3

10u

C35

9

10u

R372

0

R34

7

0

C371

10u

L305

R10

4

22

L24

82n

D307MC2850

R350

120k

C377

0.068u

1oUT1

2-IN1

3+IN1

4VEE

5+IN2

6-IN2

7oUT2

8VCC

R373

220k

C39

1

1u

MOD

MIC

SB

5M

C370

0.1u

C37

6

1000

pC

380

1u

R371

2.7k

C38

9

1000

p

C102

39p

C108

39p

C110

1000p

R114

0

L105

22n

C120

1000pC

226

13p

C227

7p(B)

L203

39n

L202

39n

C224

6p(B)

C22

3

7p(B

)

D306KDR731

D308KDR731

D309KDR731

W/N

R398

0

L103

150n

L102

47n

Q103RT1N441U

R11

6

0

3.6864MHz CLK

MCF

38.4

MH

z

W/N SW/RX

FM SYSTEM IC

DISCHARGE SW

VOLTAGEPROTECTION

SB

RSSI

OPTDETTXD

QT/DQT_IN

PTT

MIC_MUTE

PCTV

5M

AF_CONT

VOX

W/N

STD

APC_SW

5T5C

5R

TH_DETDC_SW

B

DTMF

DTRLOADN

2ND_LO

AFVOLINAFVOLOUT

DIR

SCLK

RDF/FD

DI/O

TDATA/DTRCLK

TCLK/DTRDO

1/2_OSC

5T

5R

PCTV

PCTV

AF_CONT

TXDOPTDET

5M

PTT

SB

BUSY

RSSI

MOD

D308,309

MIC

AFVOLOUT

VOX

RECTIFICATION

2SC5636Q11

RF AMP

D10MC2858

TX/RXRF SW

RD07MVS1BT122Q105

TX FINAL AMP

IC101BA2904FVM

APC

2SK1824-AQ107

DC SW

Q108RT1P441U

DC SW

2SC4774Q202

IF AMP

D307

LIMITER

RECTIFICATION

D306

Q307RT1N441U

W/N SW/TX

Q106RT1N441U

DC SW

KTC4075E(Y,GR)Q308

RECTIFICATION

2SC4926YDQ101

RF AMP

RQA0004PXDQSQ102

TX DRIVE AMP

IC308AQUA-L

AUDIO PROCESSOR

2SC4116(GR)FQ310

2SA1586(Y,GR)FQ311

MIC MUTE

MIC MUTE

R:1.8VT:1.62V

4.85V

R:0VT:1.76V

T:0.55V R:7.6VT:6.95VT:1.21VT:2.71V

T:4.89V(H)T:2.58V(L)

W:0VN:5V

R:2.45VT:0V

TX-RX UNIT (X57-7570-20)

37

SCHEMATIC DIAGRAM TK-2302/2302(V)/2306

Note : The components marked with a dot (•) are parts of layer 1.X57-757 4/4

7

6

5

4

3

2

1

TSRQP

R381

150

C40

5

220p

R377

47k

R37

8

560

2SB1694Q313

C39

7

0.47

u

J301PTT/RXD

MICMICIN

OPTDET5MAE

TXDNC

SPOSPI

C399

100p

R38

4

33k

C39

5

220p

R379

1k

C402

0.1u

C404

100u6.3R

389

0

C40

3

0.04

7u

R38

3

56k

R380

470k

1 NC1

2 VCC

3 NC2

4 VIN

5 RIPPLE6

NF

7

PHASE

8

PRE-GND

9

PW-GND

10

PoUT

Q314RT1N441U

R38

7

100k

C40

8

1000

p

CN13

C13

8

27p

L113

7T

C15

6

15p

C14

8

1000

p

C158

7p(B)

C15

1

10p

L117 1u

C155

12p

C153

10p

C15

4

18p

L114

7T

L116

6T

R13

4

150

C14

9

22p

D10

5

HV

C13

1

D10

4

HV

C13

1

C247

3p(B)

R230

0

D20

5

1SV

305FL2

13

56n

R21

7

220

L214

27n

C26

4

5p(B

)

C257

39pC25

0

56p

R229

10C2361000p

C265

30p

L210

C25

2

1000

p

D20

3

1SV

305F

C260

4p(B)

C23

1

1000

p C25

1

5p(B

)

D20

4

1SV

305F

L211

56n

C238

1000p

L205

560n

R225

47

C25

9

56p

R21

9

100k

C23

7

6p(B

)

R216

560

C23

3

1000

p

C25

8

4p(B

)L209

56n

C25

4

1000

p

C23

2

12p

C26

3

56pC

246

56p

R22

6

220

C23

0

0.01

u

BPF

L204

3SK318Q203

C249

2.5p(B)

C26

1

1000

p

3SK318Q204

C24

5

1000

p

R22

8

56k

D20

2

1SV

305F

C262

4p(B)

C24

4

3p(B

)

R21

8

100k

C24

8

1000

p

R220

56

L112

8T

C25

5

1000

p

MIC301

C24

3

10u

CP

202

RK

75H

A1J

474J

CP

204

RK

75H

A1J

474J

C396

0.1u

C40010u

R39

0

0

C23

5

0.01

u

CP304RK75HA1J102J

CP

203

RK

75H

A1J

104J

CP

201

RK

75H

A1J

104J

R388100

R385

100

L108

3T

L109

5T

C13

9

68p

C14

1

27p

C14

3

13p

L110

7T

C145

82p

C150

1000p

L111

680n

C15

2

11p

L115

12n

C15

7

33p

R22

4

2.2k

R223

0

R222

0

L207

100n

C22

8

0.1u

L216

27n

R23

1

1k

C41

5

1000

p

C14

6

7p(B

)

L206

180n

ANT

MIXER

MUTE SW

5T

5R

AFV

OLO

UT

PCTV

AF_CONT

OPTDETTXD

5M

PTT

SB

PCTV

SBSB

MIC

GND

GND

DC SW

D103

HSC277

ANT SW

ANT SWANT SW

D204,205

RF BPF TUNING

RF BPF TUNING

D202,203

Q312RT1N441U

DC SW

IC309TA7368FG

AUDIO AMP

2SK3577-AQ316

MUTE SW

LOW NOISE AMP

Q204

2SK3577-AQ315

MUTE SW

R:4.8VR:1.7V

R:4.7V

R:0.73V

R:2.41V

R:2.41VR:0.94V

R:4.82V

T:0.35VR:7.73VT:9.2V

T:-1.45V

7.55V(MUTE OFF)R:0.25V(MUTE ON)

R:7.7V(MUTE ON)0.16V(MUTE OFF)

TX-RX UNIT (X57-7570-20)

TK-2302/2302(V)/2306

38

BLOCK DIAGRAM

Power Switch/AF Volum

ChannelSelector

R31-0670-15

S60-0440-05

1

2

3

4

5

6

7

8

9

10

11

Tx VCO

Q5:2SK1875-F(V)

LoopFilter

PLL IC

5C

IC1:MB15A02PFV2E1

X1:L77-3042-05

PLL_STB

PLL_DAT

PLL_CLK

PLL_UL

12.8MHz

2nd Local:38.40MHz

CeramicFilter

CF201:L72-0973-05

2nd IF:450kHz

BUSY

FM

ICTA31

MOD

BatteryProtector

D301:GN1G

Fuse

F301:F53-0324-05

2.5A

D303:B30-2315-05

SB

BATT

PTT

SIDE1

SIDE2

EEPROM

5M

EEPCLK

EEPDAT

IC305:BR24L16F-W

PTTSIDE1

X301:L78-1433-05

14.746MHz

RSSI

5M

IC306:R5F212CCKCMB

MCU

R305

R301

X57-7570-20 (TX-RX UNIT)

LED

LEDRXLEDTX

TCXO

Tripler

Q2:2SC4774

SIDE2

Q305,Q306:2SC4919

BSHIFT

RDF/FD

OPTDET

PLL_UL

VOX

BATT

QT/DQT_IN

BUSYRSSI

TH_DET

RXD

Low PassFilter

B

5C

5T

5R

5M

Regulator

Regulator

Voltage

Voltage

Switch

Switch

5T_C

5R_C

5C_C

IC303:XC6209B502PR

LEDD304:B30-2314-05

SBSB

5R

QTTCXO

Rx VCO

MOD

QTVCO

D4,D8:1SV325FD9:1SV278F

Q4:2SK1875-F(V)D3,D6:1SV325F

Switch

Switch

RX_SW

TX_SW

5M

Q7:RT1P430U

Q8:RT1P430U

Oscillator:272.000~348.000MHz


B

SB

AFVOL_IN

AFVOL_OUT

EN1

EN2

EN3

EN4

EN5

IC304:XC6209B502MR

ResetDetectorVoltage

IC301:BD4840FVE

Q304:DTB723YE

Q303:RT1P141U

DET

EN1EN2EN3EN4EN5Reset

EEPCLK

DTMF

PCTV

PLL_DATPLL_CLKPLL_STB

5T_C5C_C5R_C

W/N

AF_CONT

BSHIFT

QTTCXOQTVCO

MIC_MUTE

TX_SWRX_SW

LEDTXLEDRX

APC_SW

STD

1/2_OSC

TXD

DTRLOADNTDATA/DTRCLKSCLK

Q

W/N

Rectifier

D302:HRC0203C

Rectifier

Q1:KTC4075E(Y,GR)

DC_SW

Switch Switch

Q301:RT1N441U Q302:RT1N441U

ShiftSwitch

CeramicOscillator

DI/OEEPDAT

TK-2302/2302(V)/2306

39

BLOCK DIAGRAM

Tx/Rx:136.000~174.000MHz

Low PassFilter

ANT

D104,D105:HVC131D103:HSC277

SwitchFinalAmp

Q105:RD07MVS1BT122

Q102:RQA0004PXDQS

DriveAmp

5T

RF Amp1stMixer

RF Amp

5R5R

D204,D205:1SV305FQ204:3SK318

Q203:3SK318

5C

Q11:2SC5636

BufferAmp

Q9:2SC5636

XF201:L71-0619-05

1st IF:38.85MHz

5C

LippleFilter

Q6,Q10:KTC4075E(Y,GR)

(V) RF Amp

Q3:2SC5636

5C

IF Amp

Q202:2SC4774

5R5C

Discrimi-nator

CD201:L79-1866-05

5R

1st Local:174.850~212.850MHz

40MHz

450kHz

BUSY

FM IF IC

IC201:TA31136FNG

Rx:136.000~174.000MHz

RXD

MicAGC/Mute

5M

Q310:2SC4116(GR)F

MIC_MUTE

D306:KDR731

VOX

AFPowerAmp

IC309:TA7368FG

AFVOL_IN

MOD

1/2_OSC

DIR

Audio Prosessor

IC308:AQUA-LQT/DQT_IN

5M

RSSI

Mic

T91-0651-15MIC301:

SP/MIC Jack

Speaker

Detector

B

IC101:BA2904FVM

Switch

Q201:RT1P441U

W/N

Tx:136.000~174.000MHz

Pre-driveAmp

Q101:2SC4926YD

PCTV

DI/O

TXD

SB

5R

5T

5T

TH101

TH_DET

APC

Q108:RT1P441U

SwitchAPC_SW

Q106:RT1N441U

BB

F

(V)F

TX_SW

T1P430U


Frequen-cy

Divider

5C

IC2:UPB1509GV

Tx/RxSwitch

D202,D203:1SV305F

5T 5R

PCTVPCTV

BandPassFilter

BandPassFilter

MCF

Q312:RT1N441U

Q313:2SB1694

SwitchMute

Q314:RT1N441UQ315,Q316:2SK3577-A

OPTDET

AFVOL_OUT

Switch

Q311:2SA1586(Y,GR)F

Q308:KTC4075E(Y,GR)

D308,D309:KDR731

Q107:2SK1824-A

DET

DET

DTRLOADN

STD DTMF

Limiter

D307:MC2850

Protector D101:UDZW5.1(B)

Switch

Q307:RT1N441U

W/N

SwitchAPC_SW

Switch

Switch DC_SW

Q103:RT1N441U

T07-0369-15

E11-0703-05

Tempera-ture

Detector

D10:MC2858

Switch AF_CONT

SCLK

TDATA/DTRCLK

RDF/FD

TCLK/DTRDO

TK-2302/2302(V)/2306

40

LEVEL DIAGRAMR

eceiv

er

Secti

on

Tra

nsm

itte

r S

ecti

on

)zHk1( F

A

RF

(Cen

ter

Freq

uen

cy)

RF

(Cen

ter

Freq

uen

cy)

–121

.0d

Bm

–120

.5d

Bm

–118

.0d

Bm

–104

.0d

Bm

–106

.5d

Bm

–100

.5d

Bm

210m

V13

0mV

IF1

(38.

85M

Hz)

IF2

(450

kHz)

AF

(1kH

z)

SP

500m

WC

150

C25

7Q

204

C23

8Q

203

Q20

2X

F201

C21

7C

215

IC20

1

FM IF

SY

ST

EM

C39

0

AQ

UA

-L

IC30

8C

391

IC30

9

15m

Vrm

s

120m

Vrm

s1.

6dB

m8.

2dB

m37

.1d

Bm

–4.0

dB

m5.

0W

MIC

AQ

UA

-L

IC30

8C

45

VC

O

PLL

C51

C81

IC2

Q9

C87

RX

LOD10

C10

2Q

101

C10

8Q

102

Q10

5C

150

To m

ake

mea

sure

men

ts in

th

e A

F se

ctio

n, c

on

nec

t th

e A

C le

vel m

eter

. (A

NT

inp

ut:

–53

dB

m, 1

kHz

FM, 3

kHz

DE

V (

WID

E).

)In

th

e R

F se

ctio

n,u

se 1

000p

F co

up

ling

cap

acit

or.

(Th

e d

isp

lay

sho

ws

the

SS

G in

pu

t va

lue

req

uir

ed t

o o

bta

in

12d

B S

INA

D w

ith

ou

t Lo

cal L

evel

.)

AG

is s

et t

o t

he

MIC

Inp

ut

bec

om

es 3

kHz

DE

V. a

t 1k

Hz

MO

D. (

WID

E).

To m

ake

mea

sure

men

ts in

th

e A

F se

ctio

n, c

on

nec

t th

e A

C le

vel m

eter

.In

th

e R

F se

ctio

n, u

se 1

000p

F co

up

ling

cap

acit

or.

TK-2302/2302(V)/2306

41

SPECIFICATIONS

GeneralFrequency Range ...................................................136~174MHzNumber of channels ..............................................Max. 16Channel Spacing ....................................................25kHz, 30kHz (Wide) / 12.5kHz, 15kHz (Narrow)PLL Channel Stepping ...........................................2.5kHz, 5kHz, 6.25kHz, 7.5kHzOperating Voltage ..................................................7.5 V DC±20%Battery Life ............................................................More than 18 hours at 5 watts (5-5-90 duty cycle with KNB-45L battery)Operating Temperature range ...............................–30°C to +60°C (–22°F to +140°F)Frequency Stability ................................................±2.5ppm (–30°C to +60°C)Channel Frequency Spread ....................................38MHzDimensions and Weight (Dimensions not including protrusions) Radio Only .........................................................160g (5.6oz) With KNB-45L (2000mAh battery) .....................54 (2.13) W x 122 (4.8) H x 33.8 (1.33) D mm (inches) 280g (9.9oz)

Receiver (Measurements made per TIA/EIA-603)Sensitivity EIA 12dB SINAD ................................................0.25µV (Wide) / 0.28µV (Narrow)Selectivity ..............................................................70dB (Wide) / 60dB (Narrow)Intermodulation .....................................................65dB (Wide) / 60dB (Narrow)Spurious response .................................................65dBAudio Power Output ..............................................500mW at 4Ω less than 10% distortion

Transmitter (Measurements made per TIA/EIA-603)RF Power Output ...................................................5W/1WSpurious and Harmonics ........................................65dBModulation .............................................................16K0F3E (Wide) / 11K0F3E (Narrow)FM Noise ...............................................................45dB (Wide) / 40dB (Narrow)Audio Distortion .....................................................Less than 5%

TK-2302/2302(V)/2306

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

P.O. BOX 22745, 2201 East Dominguez Street, Long Beach,

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

Rembrücker Str. 15, 63150 Heusenstamm, Germany

Leuvensesteenweg 248 J, 1800 Vilvoorde, Belgium

KENWOOD House, Dwight Road, Watford, Herts.,

Amsterdamseweg 37, 1422 AC Uithoorn, The Netherlands

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

Bolivia, 239-08020 Barcelona, Spain

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

Unit 3712-3724, Level 37, Tower one Metroplaza, 223 Hing Fong Road,

1 Ang Mo Kio Street 63, Singapore 569110

CA 90801-5745, U.S.A.

Kwai Fong, N.T., Hong Kong

WD18 9EB United Kingdom

L’Etoile Paris Nord 2, 50 Allée des Impressionnistes, Bp 58416 Villepinte, 95944 Roissy Ch De Gaulle Cedex

J K L M N O P Q R SIHGFEDCBA

1

2

3

4

5

6

7

8

9

10

11

12

13

14

1

2

3

4

5

6

7

8

9

10

11

12

13

14

S

GD

D

G

S

D

GS

C44

C45

C400

C404

C405

C213

C414

C415

F301

C3

Q106

Q107

Q108

Q301

Q302Q304

Q316

L302

L304

R302

R303

R307

R308

R309

R116

R117

R310

R120

R316

R123

R317

R319

CN301

R324

R132

MIC301

C303

BATT+

C304

C305

C307

C310

C311

C313

C315

R12

C318

R17

C321

C130

R20R21

C325

Q1

R26

R27

C331

C140

R30

C337

C339

R2

R377

R3

R378

R381

R383

R385

R387

R388

R389

D303

D304

IC303

C395

C396

C397

CP301

CP303 CP304

R201

RXD TXD

A4A1

A6A5A3

A2

1

4 5

8

THDET

MDSW

5M

3 4

51

LV

+ + +

5T+ –

PCTV

+

ANT

1 11EN

5EN

4EN

3G

ND

EN2

EN1

AFV

OLG

ND

AFV

OLO

UT

AFV

OLIN

SB

B

C36

C39

C418

C1

C8

C9

Q305

Q306

L301

L303

L306

R301

R304

R305

R306

R313

R314

R315R

318

CN302RESET

CN303MODE

R320

R321

R323

X301

C316

C319

R19

C327

C332 C

334C335

R1

IC301

3 1

4 5

IC305

IC306

CP302

CP1

C10

R210

C27

C30

CN

201B

US

Y

C32

CN

202R

SS

I

CN

203B

PF

C35

C201

TH201

C210

Q303

Q307

L7

R325

IC1 R14

R15

R16

R18 R

22

R7

C341

Q201

C11

C15

R209

C402

C403

C2

Q103

Q312

Q313

Q314

Q315

L117

R111

R118 R

124

R125

R126

R128R

129

R130

R131

R133

C103

TH101

C107

C109

C122

C124

C320

C322

C136

R379

R380

R384

R390

D101

R393

IC101

45

18

IC309

C399

C4

C6

R127

C131

VOX

QTI

GND

SB

1

2021 40

41

606180

AFMUTE

AFCONT

B

GND

GND

5R

W/N

5C

PTT

MOD

LD

1011

120

SP–

SP+

56

110

J79-0186-09

TXD

AE

SPI

SPO

NC

5M OPTDET MIC

PTT/RXD

MICIN

TK-2302/2302(V)/2306 PC BOARD

TX-RX UNIT (X57-7570-20) Component side view (J79-0186-09) TX-RX UNIT (X57-7570-20) Component side view (J79-0186-09)

PC BOARD TK-2302/2302(V)/2306

Component side

Foil side


Ref. No. Address

IC1 9G

IC101 4N

IC301 6B

IC303 6H

IC305 5C

IC306 7D

IC309 7O

Q1 8H

Ref. No. Address

Q103 4M

Q106 3M

Q107 3M

Q108 4M

Q201 5G

Q301 6P

Q302 6P

Q303 5I

Ref. No. Address

Q304 6I

Q305 7B

Q306 8B

Q307 8H

Q312 8P

Q313 7P

Q314 8O

Q315 8O

Ref. No. Address

Q316 8O

D101 4M

D303 8S

D304 8S

J K L M N O P Q R SIHGFEDCBA

1

2

3

4

5

6

7

8

9

10

11

12

13

14

1

2

3

4

5

6

7

8

9

10

11

12

13

14

D SG

D SG

R211

C25

XF201

R214

R215

C29

R217R218

R219

C31

R225

R226

R229R230

R231

C49

C51

C202

C204

C205

C56

C206

C57

CD201

C209

C59

C212

C62

C63

C408

C64

C215

C217

C413

C70

C221

C223

C225

C75

C226

C76C78

C229

C231

C81

45

18

C82

C83

C86

C236

C88

C238

C89CF201

C243

C245

C247C249

C5

TC2

TC1

C250C254

C255

G

G

S

D

G

G

S

D

C257

Q101

E

C E

B

D3

D4

Q105D G

C260

D9

Q308

L104

L108

Q310

Q311

L110

L305

L112L113

IC201

L116

CP202

CP204

R102

R104

R106

D10

R110

L1

L2

L6

R134

L10

L12

L13

L14

C101

C102

L17

L18

C106

L22

L23C110

L24

R340

R344

R345

C118

R348

R10

R351R353

R354

R355

R356

R357

R358

S1PTT

R362

S2SIDE1

S3SIDE2

R368

R369

R29

Q6

Q8

R370

R371

R31

R32

C143

R35

R375

R376

C146 C148

R38

R4

R39

C150

R40R41

C151

R43

C154

R46

C158

C353

C355

C358

R394

Q203

Q204

D301

D302

D306

C367

D307

D308

C369

D309

L201

L204

C370

C371

L206

C372

L207

C373

C374

C378

C381

L216

C385

C386

IC308

1

910 16

17

252632

C390

C392

C393

X1

C12

C14

R203

C18

R205

R207

R208


TXD

AE

SPI

SPO

NC

5MOPTDETMIC

PTT/RXD

MICIN

R222

R223

R224

R228

C244

C246

C248C

251

C252

C258

C259

C261

C262

D202

C263

D203

C264

D204

C265

D205

L102

L103

L105

L106

L107

L111

L114

R103

R105

R107

R108

R109

R113

R114

R119

R121

R122

C108C

114

C119

C120

C123

C125

C127

C129

C134

C135

C145

C149

C152

C153

C155

C156 C

157

D103

D104

D105

L209

L210

L211

L213

L214 R220

C53

C58

C61

C66

C72

C77

C228

C80

D8

L109

L115

CP201

CP203

R101

L15

L21

C132

C138

C139

Q5

C141

R33

C23

R212

C26

R213

R216

C33

C40

C41

C42C

47C

50

C52

C203

C207

C208

C60

C211

C214

Q10

Q11

C65

C216

C67

C68

C71

C224

C74

C227

C79

C230C

232

C233

C84

C235

C87

C237

C7

Q102

D S G

D6

L4

L8

L9L11

L16

L19

L20

R11

R13

Q2

Q3

R28

Q4

Q7

R34

R36

R37

R5R9

R42

R44

R45

R47

C359

Q202

C360

C368

L202

L203

L205

C13

C16

C17

R204

R2068

9

116

C220

C73

IC2

C306

R347

R349

C312

R350

R352R

359

C323

R360

R361

R363

R364

R365 R

366

R367

Q9

R372

R373

R8

VR

1

R398

C361C

362

C363

C364

C365

C366

C375

C376

C377

C379

C380

C382

C383

C384

IC304 3

4

15

C388

C389

C391

CN

304M

DS

W

R341

R342

R374

C354

R391

C356

J79-0186-09

TK-2302/2302(V)/2306 PC BOARD

TX-RX UNIT (X57-7570-20) Foil side view (J79-0186-09) TX-RX UNIT (X57-7570-20) Foil side view (J79-0186-09)

PC BOARD TK-2302/2302(V)/2306

Component side

Foil side


Ref. No. Address

IC2 6K

IC201 6N

IC304 9P

IC308 8P

Q2 8N

Q3 7L

Q4 9L

Q5 8J

Q6 7K

Ref. No. Address

Q7 8K

Q8 7J

Q9 7K

Q10 7K

Q11 5L

Q101 6I

Q102 7H

Q105 7F

Q202 5N

Ref. No. Address

Q203 4K

Q204 5G

Q308 7R

Q310 7R

Q311 7R

D3 10K

D4 9J

D6 10K

D8 9I

Ref. No. Address

D9 8J

D10 5L

D103 5D

D104 4E

D105 4D

D202 4I

D203 4H

D204 4F

D205 4F

Ref. No. Address

D301 4R

D302 10P

D306 8R

D307 8Q

D308 7Q

D309 7Q

-t

-t

EN3

EN4

EN5

EN2

EN1

B

C31

9

1000

p

C32

7

1000

p

R306

180k

C10

3

1u

C31

8

0.01

u

C37

9

1u

C31

2

1000

p

C32

1

1u

R125

150k(D)

L21

R21

0

4.7k

R214

470

C35

0.1u

35

TC2

10p

C71

0.5p(B)

C18

18p

C57 9p (B)

R13

1

56k

C217

0.01u

R12

9

47k

C70

0.5p(B)

C20

4

1000

p

R12

6

330k

(D)

D4

1SV

325F

C27

0.33

u35

C67

6p(B

)

R12

8

1M

R20

8

82k

C25

30p

C12

1000

p

C75

470p

R15

560

C20

5

1800

p

TH10

1

100k

C76

10u6

.3

R213

180k

R14 10

C10

100p

C65

5p(B

)

C215

2p(B)

C13

0

1000

p

C77

1000

p

C369

0.1u

C131

100p

R12

220

R124

150k(D)

C53

180p

R34

180

D10

1

UD

ZW

5.1(

B)

R20

0

R28 1k

R30

100k

R37

4.7k

R13

3

470k

C207

560p

C21

6

0.01

u

C225

0.01u

C21

0

0.1u

D8

1SV325F R11

7

0.39

R12

3

0.39

R13

100

L7

R8

100

R12

0

0.39

R21

2

100

D6

1SV325F

C7

10p

R32

680k

R132

100k

C14

0.01

u C58 2p (B)

R127

330k(D)

C208

0.1u

TC1

10p

CF201L72-0973-05

450 kHz

C14

0

1000

p

C31

0.01u

C61

5p(B

)

C5

1000

p

L4 560n

C26

2p(B)

C4

0.1u

C9

100p

R9

2.2k

IC201TA31136FNG

1

oSC

IN

2

oSC

oUT

3

MIX

oUT

4

VC

C

5

IFIN

6

DE

C

7

FILo

UT

8

FILI

N

9A

FoU

T

10Q

UA

D

11IF

oUT

12R

SS

I

13N

-DE

T

14N

-RE

C

15G

ND

16M

IXIN

C56

6p(B

)

C20

1

0.22

u

R10 1k

R22

10k

C21

3

0.1u

C20

6

560p

R2073.3k

C78

33p

R35 68D9

1SV278F

R118

2.2k

C16

47p

R11

1

8.2k

C52

120p

C13

10p

R29

150k

C20

9

68p

R39

100

R18

680

R20

3

4.7k

R204

82k

D3

1SV

325F

C8

100p

C136

470p

C68

470p

C20

3

0.01

u

C29

27p

R20

6

2.7k

R26

27k

R17

1.5k

C30

1000

p

C51

10p

R11

330k

C374

1000p

R35

1

330k

R355

120k

C44

1u

C363

82p

R364

100k

C36

2

1000

p

R36

2

180k

R35

4

330k

C364

12p

C366

0.1uC384

0.1u

C382

0.015u

R369

82k

C381

390p

R363

100k

C37

3

120p

C386

0.01uC36

0

0.1u

R374

12k

C36

8

270p

C37

8

82p

C383

0.1u

R381

150

C35

8

0.22

u

R37

6

470

C40

5

220p

R377

47k

R37

8

560

2SB1694Q313

R30

8

220

C39

7

0.47

u

R37

5

1.8k

J301PTT/RXD

MICMICIN

OPTDET5MAE

TXDNC

SPOSPI

C392

0.033u

C399

100p

R38

4

33k

C39

5

220p

R379

1k

C402

0.1u

C404

100u6.3

R38

9

0

C32

5

1000

p

C40

3

0.04

7u

C361

1u

R38

3

56k

R380

470k

R1

22k

C32

0

1000

p

1 NC1

2 VCC

3 NC2

4 VIN

5 RIPPLE6

NF

7

PHASE

8

PRE-GND

9

PW-GND

10

PoUT

R34

4

470k

Q314RT1N441U

R30

7

270

L301

C31

310

0p

C30

510

0p

C30

40.

1u

C31

110

0p

D30

1

GN

1GC

307

100p

R27

820k

C356

1000p

C365

120p

R353

12k

C35

5

0.01

u

R345

27k

R34

1

10k

R370

1k

C36

3300

p

C39

6800

p

R352

100k

L303

C334

0.01u

L304

R356

4.7k

R209

3.3k

R349

1M

C33

470p

C31

0

1u

C332

5p(B)

R31

8

1.8k

R319

0

C337

5p(B)

R5

150k

R4

100k

C1

3300

p

C2

6800

pR2

10k

R3

47k

C32

3.3u

16

R20

1

180k

R31

6

2.2k

CD

201

L79-

1866

-05

D303B30-2315-05

D304B30-2314-05

C3

1u

Q201RT1P441U

C21

10.

1u

C21

40.

1uC372

1000pC390

1u

R303 100

R38

7

100k

R19

22k

R21

10k

R367

39k

R366

150k

R301

470k(D)

R30

5

470k

(D)

R304

330k

R70

R31

7

4.7k

Q301RT1N441U

Q302RT1N441U

R365

3.3k

R31

510

k

L201 1u

C32

3

1u

C367

1u

R13

0

0

R38

150k

R31

270k

C60

4.5p

(B)

C22

0

1p(B

)

C22

1

12p

S1

S2

S3

C32

2

1000

p

L11

180n

L16

22n

C59

2.5p (B) C74

1000

p

C635p(B)

C62

470p

C73

0.1u

C79

470p

L10

180n

L15

33n

C646p(B)

C72

0.1u

C66

470p

R33

100

C50

470p

C42

6p(B

)

C40

6p(B

)

C41

4p(B)

C47

15p

R348

1k

R35

8

470k

R36

0

3.3k

R357

56k

R35

9

47k

TH20

1

100k

1oS

CIN

2N

C1

3oS

CoU

T4

VP

5V

CC

6D

o7

GN

D8

LD9

NC

210

FIN

11C

LoC

K

12N

C3

13D

ATA

14LE

15FC

16N

C4

17Fo

UT

18P

19N

C5

20R

XF201L71-0619-0538.85 MHz

INoUT

C31

510

0p

X1

12.8MHz

L77-3042-05

1VCoNT

2GND

3oUTPUT

4VCC

R340

10k

C35

3

0.01

u

C35

4

0.01

u

R342

10k

C385

0.1u

R16 0

R302 0

VR

110

0k

R368

0

R361

0

1Vo

UT

2S

UB

3N

C4

GN

D

5V

DD

1VIN

2VSS

3CE

4NC

5VoUT

1A0

2A1

3A2

4GND

5SDA

6SCL

7WP

8VCC

C31

6

1000

p

C38

8

1000

p

C40

8

1000

p

C37

5

1000

p

CN13

C80

470p

R32

0

12k

L6 560n

L2

4.7u

L1

CP

303

RK

75H

A1J

102J

C12

7

1u

R43

3.3k

R10

7

330

C11

4

1000

p

C13

8

27p

C12

2

1000

p

R11

9

47k

C13

2

10p

C10

6

1000

p

C86

1000

p

L104

L113

7T

R10

8

47k

R47

4.7k

R10

3

330

C15

6

15p

C81

15p

C14

8

1000

p

R106

18

R10

1

10k

C158

7p(B)

C10

1

1000

p C13

4

1000

p

R12

1

47

R10

9

270

R46

2.2k

L107

C13

5

0.1u

C15

1

10p

C10

9

0.1u

C87

1000

p

L117 1u

R102

10k

C12

9

1000

p

C155

12p

R45

330

R42

3.3k

C12

5

0.01

u

C88

1000

p

C12

3

1000

p

C89

100p

C153

10p

C10

7

1000

p

R44 22

R10

5

330

C15

4

18p

L114

7T

L116

6T

R12

2

100k

R11

3

330

L106

9T

R13

4

150

C11

8

1000

p

C14

9

22p

D10

5

HV

C13

1

D10

4

HV

C13

1

C21

2

1000

pR

211

4.7k

C22

9

6p(B

)

C247

3p(B)

R230

0

D20

5

1SV

305FL2

13

56n

R21

7

220

L214

27n

C26

4

5p(B

)

C257

39pC25

0

56p

R229

10C2361000p

C265

30p

L210

C25

2

1000

p

D20

3

1SV

305F

C260

4p(B)

C23

1

1000

p C25

1

5p(B

)

D20

4

1SV

305F

L211

56n

C238

1000p

L205

560n

R225

47

C25

9

56p

R21

9

100k

C23

7

6p(B

)

R216

560

C23

3

1000

p

C25

8

4p(B

)L209

56n

C25

4

1000

p

C23

2

12p

C26

3

56pC

246

56p

R22

6

220

C23

0

0.01

u

BPF

L204

3SK318Q203

C249

2.5p(B)

C26

1

1000

p

3SK318Q204

C24

5

1000

p

R22

8

56k

D20

2

1SV

305F

C262

4p(B)

C24

4

3p(B

)

R21

8

100k

R215

390

C24

8

1000

p

R220

56

L112

8T

C11

9

27p

R20

5

10

C25

5

1000

p

C45

1u

R32

4

4.7k

R325

4.7k

C339

1u

C34

1

1000

p

1A

GN

DIN

2TX

IN

3TX

INo

4LI

MLV

5E

XTL

IMIN

6M

oD

7V

DD

8D

TRLo

AD

N

9S

TD

10

TCLK/DTRDo

11

TDATA/DTRCLK12DI/o

13RDF/FD

14SCLK

15DIR

16XoUT

17X

IN

18V

SS

19A

MP

3P20

AM

P3N

21A

MP

3o22

AM

P4P

23A

MP

4N24

AM

P4o

25D

TRA

IN

26RXAF

27RXAFIN

28EXPoUT

29FILTERo

30RXINo

31RXIN

32AGND

MIC301X301

14.746MHzL78-1433-05

R11

0

100k

L9

F301F53-0324-05

2.5A

CP1RK75HA1J101J

C11

10u

C17

0.01

u

C15

0.01

u

C23

0.01

u

C12

4

1u

C20

2

10u

C24

3

10u

CP

202

RK

75H

A1J

474J

CP

204

RK

75H

A1J

474J

RSSI

BUSY

C396

0.1u

C40010u

C39

3

10u

C35

9

10u

R372

0

R34

7

0

C371

10u

2SC4919Q305

R31

4

10k

R321

10k

CP

302

RK

75H

A1J

473J

1N

C2

VS

S3

CE

4V

IN

5Vo

UT

C30

6

1u

L302

L305

R10

4

22

R39

0

0

C335

10u

L8

18n

L12

33n

L18

270n

L17

270n

L20

180n

L19

180n L2

2

39n

L24

82n

C23

5

0.01

u

D307MC2850

R350

120k

C377

0.068u

CP304RK75HA1J102J

L13

180n

L14

180n

R36

100

CP

203

RK

75H

A1J

104J

CP

201

RK

75H

A1J

104J

1oUT1

2-IN1

3+IN1

4VEE

5+IN2

6-IN2

7oUT2

8VCC

CN301

1 B

2 SB

3 AFVOLIN

4 AFVOLOUT

5 AFVOLGND

6 EN1

7 EN2

8 GND

9 EN3

10 EN4

11 EN5

R373

220k

C39

1

1u

15T

_C2

PLL

_STB

35C

_C4

5R_C

5W

/N6

MO

DE

7A

F_C

ON

T8

BS

HIF

T9

RE

SE

T10

XO

UT

11V

SS

12X

IN13

VC

C14

QTT

CX

O15

QTV

CO

16A

UX

617

AU

X5

18A

UX

419

AU

X3

20A

UX

2

21AUX1

22MIC_MUTE

23AF_MUTE

24LED_BLUE

25NC

26NC

27NC

28NC

29NC

30NC

312TONE

32NC

33RXDATA

34TXDATA

35OPTDET

36TX_SW

37RX_SW

38

LEDRX

39

LEDTX

40

APC_SW

41D

C_S

W

42S

TD

431/

2_O

SC

44IN

T

45TX

D

46R

XD

47D

IR

48D

I/O

49D

TRLO

AD

N

50TD

ATA

/DTR

CLK

51S

CLK

52TC

LK/D

TRD

O

53R

DF/

FD

54M

DS

W

55P

TT

56S

IDE

1

57S

IDE

2

58E

N5

59E

N4

60E

N3

61EN2

62EN1

63DEST1

64DEST2

65PLL_UL

66BATT

67RSSI

68BUSY

69VOX

70QT/DQT_IN

71EEPCLK

72EEPDAT

73TH_DET

74DTMF

75AVSS

76PCTV

77VREF

78AVCC

79 PLLDAT

80 PLLCLK

R323

1k

C33

1

0.1u

R310

0

R313

1k

R309

0

CP

301

RK

75H

A1J

473J

R388100

R385

100

RESET MODE

PCTV

MOD

MDSW

C6

0.01u

LD

VOX

QTI

MIC

MICMUTE

AFMUTE

THDET

AFCONT

PTTSW

TXD

RXD

SB

5M

B

C370

0.1u

C37

6

1000

pC

380

1u

R371

2.7k

C38

9

1000

p

IC2UPB1509GV

1VCC1

2IN

3IN

4GND

5SW1

6SW2

7OUT

8VCC2

C82

470p

L23

R40 10

C83

470p

R41

1k

C84

1000p

C102

39p

C108

39p

C110

1000p

R114

0

L105

22n

C120

1000p

L108

3T

L109

5T

C13

9

68p

C14

1

27p

C14

3

13p

L110

7T

C145

82p

C150

1000p

L111

680n

C15

2

11p

L115

12n

C15

7

33p

R22

4

2.2k

R223

0

R222

0

L207

100n

C22

6

13p

C227

7p(B)

L203

39n

L202

39n

C224

6p(B)

C22

3

7p(B

)

C22

8

0.1u

C30

3

1000

p

R391

1k

D306KDR731

D308KDR731

D309KDR731

R394

47k

R393

0

L216

27n

R23

1

1k

C413

1000p

C41

4

1000

p

W/N

C41

5

1000

p

R398

0

L103

150n

C41

8

39p

L102

47n

L306

27n

C49

0.5p

(B)

C14

6

7p(B

)

Q103RT1N441U

R11

6

0

L206

180n

ANT

CV

Side1

Side2

LR

SIDE2

LG

GND

PTT

PTT

SIDE1

BATT

BATT

TXCO

3.6864MHz CLK

MCF

38.4

MH

z

VCO (TX)

VCO (RX)

REVERSEVOLTAGEPROTECTION

PRESCALER

TX-RX UNIT (X57-7570-20)

MIXER

W/N SW/RX

FM SYSTEM IC

BEAT SHIFT SW

DC SW/RED COLOR LED

DISCHARGE SW

VOLTAGEPROTECTION

MUTE SW

EN2

5M

PLL_UL

EN1

BATT

5C

EN1

EN5

5M

5C_C

PLL_DAT

LEDRX LEDRX

2ND_LO

EN3

5T

PLL_STB

PLL_CLK

5T_C

SB

SIDE2

INT

5C_C

B

EN2

EN4

5R_C

PLL_CLK

SB

5R_C

5T_C

PLL_DAT

5TQTTCXO

BATT

EN5

LEDTX

5C

EN3

B

RESET

PLL_UL

EN4

5R

QTTCXO

LEDTX

PTT

RESET

PLL_STB

5R

PLL_DAT

PLL_STB

PLL_CLK

2ND_LO

AFVOLINAFVOLINAFVOLOUT

SIDE1SIDE1PTT

INT

SIDE2

QTTCXO

PLL_DATPLL_STB

PLL_CLK

PLL_UL

B

5C

SB

LEDTXLEDRX

SB

RSSI RSSI

OPTDETTXD

PCTV

QT/DQT_IN

5M

PTT

AF_CONT

MIC_MUTE

PCTV

MIC_MUTE

5M

OPTDETTXD

PTT

QT/DQT_IN

AF_CONT

VOX VOX

W/N W/N

APC_SWDC_SW

STD

APC_SW

5T

5RB

5C5C

DTRLOADN

5T

5R

TH_DET TH_DETDC_SW

DTMF

B

DTMF

DTRLOADN

2ND_LO2ND_LO

AFVOLIN AFVOLINAFVOLOUT

DIR

SCLK

RDF/FD

DI/O

TDATA/DTRCLK

TCLK/DTRDO

W/N

STD

1/2_OSC

1/2_OSC

PTT

TXDDIR

DI/O

TDATA/DTRCLKSCLKTCLK/DTRDORDF/FD

5T5T

5R 5R

AFV

OLO

UT

PCTV

PCTV

PCTV

AF_CONTAF_CONT

OPTDETTXD TXD

OPTDET

5M5M

PTTPTT

SB SB

BUSY BUSY

RSSI

MOD MODMOD

2ND_LO

1/2_OSC

D308,309

PCTV

SBSB

MIC MIC

MODULATOR

AFVOLOUT AFVOLOUTAFVOLOUT

VOX

GND

GND

DC SW/GREEN COLOR LED

DC SW

RED COLOR LED GREEN COLOR LED

RECTIFICATION

IC306R5F212CCKCMA

MCU

IC301BD4840FVE

VOLTAGEDETECTOR/RESET

D302

HRC0203C

RECTIFICATIONIC304

XC6209B502MR

VOLTAGEREGULATOR/5V

IC303XC6209B502PR

VOLTAGEREGULATOR/5V

KTC4075E(Y,GR)Q1

RECTIFICATION

2SC4774Q2

TRIPLER

2SC5636Q3

RF AMP

Q304DTB723YE

DC SW/5T

Q303RT1P141U

DC SW/5R

IC305BR24L16F-W

EEPROM

FREQUENCYCONTROL/RX VCO

D3,6

FREQUENCYCONTROL/TX VCO

D4,8

Q52SK1875-F(V)

VCO/TX

KTC4075E(Y,GR)Q6

RECTIFICATION

KTC4075E(Y,GR)Q10

RIPPLEFILTER

Q8RT1P430U

DC SW/TX VCO

2SK1875-F(V)Q4

VCO/RX

Q7RT1P430U

DC SW/RX VCO

2SC5636Q9

RF AMP

2SC4919Q306

BEAT SHIFT SW

2SC5636Q11

RF AMP

D10MC2858

TX/RXRF SW

RD07MVS1BT122Q105

TX FINAL AMP

IC101BA2904FVM

APC

2SK1824-AQ107

DC SW

Q108RT1P441U

DC SW

D103

HSC277

ANT SW

ANT SWANT SW

D204,205

RF BPF TUNING

RF BPF TUNING

D202,203

Q312RT1N441U

DC SW

IC309TA7368FG

AUDIO AMP

2SK3577-AQ316

MUTE SW

2SC4774Q202

IF AMP

IC1MB15A02PFV2E1

PLL SYSTEM IC

D307

LIMITER

RECTIFICATION

D306

Q307RT1N441U

W/N SW/TX

Q106RT1N441U

DC SW

KTC4075E(Y,GR)Q308

RECTIFICATION

LOW NOISE AMP

Q204

2SK3577-AQ315

MUTE SW

2SC4926YDQ101

RF AMP

RQA0004PXDQSQ102

TX DRIVE AMP

IC308AQUA-L

AUDIO PROCESSOR

2SC4116(GR)FQ310

2SA1586(Y,GR)FQ311

MIC MUTE

MIC MUTE

0.66V

R:3.42V

4.92V5.0V

2.86V

4.88V

0.75V

R:0.58VT:5.1V

R:5.02VT:0.58V

T:3.03V

3.82V

4.48V

4.92V

R:1.8VT:1.62V

4.85V

R:0VT:1.76V

T:0.55V R:7.6VT:6.95VT:1.21VT:2.71V

T:4.89V(H)T:2.58V(L)

R:4.8VR:1.7V

R:4.7V

R:0.73V

R:2.41V

R:2.41VR:0.94V

R:4.82V

W:0VN:5V

BSHIFT ON:4.98VOFF:0V

R:3.78VT:3.47V

5.0V

5.03V

R:4.84V

T:5.0V

R:7.6VT:7.45V

ON:5.02VOFF:0V

ON:4.88VOFF:0V

T:0.35VR:7.73VT:9.2V

T:-1.45V

T:7.35VT:7.22V

4.05V

R:2.45VT:0V

7.55V(MUTE OFF)R:0.25V(MUTE ON)

R:7.7V(MUTE ON)0.16V(MUTE OFF)

Tx/Rx:136.000~174.000MHz

Power Switch/AF Volum

ChannelSelector

R31-0670-15

S60-0440-05

1

2

3

4

5

6

7

8

9

10

11

Low PassFilter

ANT

D104,D105:HVC131D103:HSC277

SwitchFinalAmp

Q105:RD07MVS1BT122

Q102:RQA0004PXDQS

DriveAmp

5T

RF Amp1stMixer

RF Amp

5R5R

D204,D205:1SV305FQ204:3SK318

Q203:3SK318

5C

Q11:2SC5636

BufferAmp

Q9:2SC5636

XF201:L71-0619-05

1st IF:38.85MHz

Tx VCO

5C

LippleFilter

Q6,Q10:KTC4075E(Y,GR)

Q5:2SK1875-F(V) RF Amp

Q3:2SC5636

LoopFilter

5CPLL IC

IF Amp

Q202:2SC4774

5R

5C

IC1:MB15A02PFV2E1

X1:L77-3042-05

PLL_STB

PLL_DAT

PLL_CLK

PLL_UL

5C

Discrimi-nator

CD201:L79-1866-05

5R

1st Local:174.850~212.850MHz12.8MHz

2nd Local:38.40MHz

CeramicFilter

CF201:L72-0973-05

2nd IF:450kHz

BUSY

FM IF IC

IC201:TA31136FNG

Rx:136.000~174.000MHz

RXD

MicAGC/Mute

5M

Q310:2SC4116(GR)F

MIC_MUTE

D306:KDR731

VOX

AFPowerAmp

IC309:TA7368FG

AFVOL_IN

MOD

1/2_OSC

DIR

Audio Prosessor

IC308:AQUA-LQT/DQT_IN

5M

BatteryProtector

D301:GN1G

Fuse

F301:F53-0324-05

2.5A

D303:B30-2315-05

SB

BATT

PTT

SIDE1

SIDE2

EEPROM

5M

EEPCLK

EEPDAT

IC305:BR24L16F-W

PTTSIDE1

X301:L78-1433-05

14.746MHz

RSSI

5M

IC306:R5F212CCKCMB

MCU

Mic

T91-0651-15MIC301:

SP/MIC Jack

Speaker

R305

R301

Detector

B

IC101:BA2904FVMX57-7570-20 (TX-RX UNIT)

LED

LEDRXLEDTX

TCXO

Tripler

Q2:2SC4774

Switch

Q201:RT1P441U

W/N

Tx:136.000~174.000MHz

Pre-driveAmp

Q101:2SC4926YD

PCTV

DI/O

TXD

SB

5R

SIDE2

Q305,Q306:2SC4919

BSHIFT

RDF/FD

OPTDET

PLL_UL

VOX

BATT

QT/DQT_IN

BUSYRSSI

5T

5T

TH101

TH_DET

TH_DET

RXD

Low PassFilter

B

5C

5T

5R

5M

Regulator

Regulator

Voltage

Voltage

Switch

Switch

5T_C

5R_C

5C_C

IC303:XC6209B502PR

LEDD304:B30-2314-05

SBSB

APC

Q108:RT1P441U

SwitchAPC_SW

Q106:RT1N441U

5R

QTTCXO

Rx VCO

MOD

QTVCO

BB

D4,D8:1SV325FD9:1SV278F

Q4:2SK1875-F(V)D3,D6:1SV325F

Switch

Switch

RX_SW

TX_SW

5M

Q7:RT1P430U

Q8:RT1P430U



Frequen-cy

Divider

5C

IC2:UPB1509GV

Tx/RxSwitch

D202,D203:1SV305F

5T 5R

PCTVPCTV

BandPassFilter

BandPassFilter

MCF

Q312:RT1N441U

Q313:2SB1694

B

SB

AFVOL_IN

AFVOL_OUT

EN1

EN2

EN3

EN4

EN5

SwitchMute

Q314:RT1N441UQ315,Q316:2SK3577-A

OPTDET

AFVOL_OUT

Switch

IC304:XC6209B502MR

ResetDetectorVoltage

IC301:BD4840FVE

Q304:DTB723YE

Q303:RT1P141U

Q311:2SA1586(Y,GR)F

Q308:KTC4075E(Y,GR)

D308,D309:KDR731

Q107:2SK1824-A

DET

DET

DTRLOADN

STD

EN1EN2EN3EN4EN5Reset

DTMF

EEPCLK

DTMF

PCTV

PLL_DATPLL_CLKPLL_STB

5T_C5C_C5R_C

W/N

AF_CONT

BSHIFT

QTTCXOQTVCO

MIC_MUTE

TX_SWRX_SW

LEDTXLEDRX

APC_SW

STD

1/2_OSC

TXD

DTRLOADNTDATA/DTRCLKSCLK

Limiter

D307:MC2850

Protector D101:UDZW5.1(B)

Switch

Q307:RT1N441U

W/N

Rectifier

D302:HRC0203C

Rectifier

Q1:KTC4075E(Y,GR)

SwitchAPC_SW

Switch

Switch DC_SW

Q103:RT1N441U

T07-0369-15

E11-0703-05

DC_SW

Switch Switch

Q301:RT1N441U Q302:RT1N441U

ShiftSwitch

CeramicOscillator

DI/OEEPDAT

Tempera-ture

Detector

D10:MC2858

Switch AF_CONT

SCLK

TDATA/DTRCLK

RDF/FD

TCLK/DTRDO

tk 2302_service manual

Documents

service manual

manualthis manual

manual revisions

kenwood corporation

required service

components description

identifi cation number

personal safety