Kenwood TK-5400 Series User manual

Document Copyrights
Copyright 2006 by Kenwood Corporation. All rights reserved.
No part of this manual may be reproduced, translated, distributed, or transmitted in any
form or by any means, electronic, mechanical, photocopying, recording, or otherwise, for
any purpose without the prior written permission of Kenwood.
Disclaimer
While every precaution has been taken in the preparation of this manual, Kenwood
assumes no responsibility for errors or omissions. Neither is any liability assumed for
damages resulting from the use of the information contained herein. Kenwood reserves
the right to make changes to any products herein at any time for improvement purposes.

Knob assy
(Encoder)
(K29-5282-14)
Knob assy
(Volume)
(K29-5283-14)
Knob assy
(Side key)
(K29-5441-14)
Key top (DTMF)
(K29-5193-23)
Cabinet assy
(With DTMF key)
(A02-3787-03)
Cabinet assy
(A02-3786-03)
Toggle switch
(S72-0402-05)
Panel assy
(A62-0537-53)
Knob assy
(Encoder)
(K29-5282-14)
Knob assy
(Volume)
(K29-5283-14)
Knob assy
(Side key)
(K29-5441-14)
Toggle switch
(S72-0402-05)
Panel assy
(A62-0537-53)
Antenna
(KRA-24 : Option)
Antenna
(KRA-24 : Option)
© 2002-6 PRINTED IN JAPAN
B51-8632-00 (N)595
800MHz APCO P25 TRANSCEIVER
TK-5400
SERVICE MANUAL
Does not come with antenna.
Antenna is available as an option.
TK-5400 (K) TK-5400 (K2) : With Keypad

2
TK-5400 CONTENTS / GENERAL
GENERAL
INTRODUCTION
SCOPE OF THIS MANUAL
This manual is intended for use by experienced techni-
cians familiar with similar types of commercial grade com-
munications equipment. It contains all required service in-
formation for the equipment and is current as of the publica-
tion data. Changes which may occur after publication are
covered by either Service Bulletins or Manual Revisions.
These are issued as required.
ORDERING REPLACEMENT PARTS
When ordering replacement parts or equipment informa-
tion, the full part identification number should be included.
This applies to all parts : components, kits, or chassis. If the
part number is not known, include the chassis or kit number
of which it is a part, and a sufficient description of the re-
quired component for proper identification.
PERSONNEL SAFETY
The following precautions are recommended for person-
nel safety :
• DO NOT transmit until all RF connectors are verified se-
cure and any open connectors are properly terminated.
• SHUT OFF and DO NOT operate this equipment near
electrical blasting caps or in an explosive atmosphere.
• This equipment should be serviced by a qualified techni-
cian only.
SERVICE
This radio is designed for easy servicing. Refer to the
schematic diagrams, printed circuit board views, and align-
ment procedures contained within.
NOTE
WE CANNOT guarantee oscillator stability when using
channel element manufactured by other than KENWOOD or
its authorized agents.
Unit X57-6530-10 X53-4030-XX Frequency range Remarks Keypad
Model & Destination 0-10 0-11
TK-5400 K✓✓ 806~825MHz (TX) 1st IF : 44.85MHz –
K2 ✓✓851~870MHz (TX,RX) LOC : 44.395MHz ✓
GENERAL ................................................................. 2
SYSTEM SET-UP ..................................................... 3
OPERATING FEATURES ......................................... 3
REALIGNMENT........................................................ 5
DISASSEMBLY FOR REPAIR .................................. 7
CIRCUIT DESCRIPTION ........................................... 8
SEMICONDUCTOR DATA ..................................... 13
COMPONENTS DESCRIPTION ............................. 16
PARTS LIST ............................................................ 17
EXPLODED VIEW .................................................. 24
PACKING ................................................................ 25
ADJUSTMENT ....................................................... 26
TERMINAL FUNCTION ......................................... 41
PC BOARD
CONTROL UNIT (X53-4030-XX) ....................... 43
TX-RX UNIT (X57-6530-10) .............................. 47
SCHEMATIC DIAGRAM ........................................ 53
BLOCK DIAGRAM.................................................. 59
LEVEL DIAGRAM................................................... 61
KMC-25 (Speaker Microphone) ........................... 62
KNB-17A (Ni-Cd Battery) ...................................... 63
KNB-21N/22N (Ni-MH Battery) ............................ 63
KPG-36 (Programming Interface Cable ) ............ 64
KSC-19 (Regular Charger) .................................... 64
KSC-20/24 (Rapid Charger) .................................. 64
SPECIFICATIONS................................................... 65

3
TK-5400
SYSTEM SET-UP / OPERATING FEATURES
Merchandise received
License and frequency allocated by FCC
Choose the type of transceiver
Transceiver programming
Are you using the optional antenna?
Delivery
Are you using the speaker microphone?
Model type TK-5400 K
TK-5400 K2
No keypad
With keypad
A personal computer (IBM PC or compatible), programming
interface (KPG-36), and programming software (KPG-78D)
are required for programming.
(The frequency, signalling data and features are programmed
for the transceiver.)
YES
YES
NO
NO
KRA-24
Whip antenna
(Option)
KMC-25
OPERATING FEATURES
1. Getting Acquainted 1-1. Key Descriptions
qTransmit/Busy/Battery low indicator
Lights red while transmitting. Lights green while receiv-
ing. Flashes red when the battery power is low while
transmitting. Replace or recharge the battery pack when
the battery is low.
Note : This indicator can be disabled by your dealer.
wPower switch/Volume control
Turn clockwise to switch ON the transceiver. Rotate to
adjust the volume. Turn counterclockwise fully to switch
OFF the transceiver.
eRotary encoder
Rotate this encoder to activate its programmable function
(page 4).
rAntenna connector
Connect an (optional KRA-24) antenna to this SMA male
type antenna connector.
tToggle switch
Switch the toggle position to activate its programmable
function (page 4).
yDisplay
Refer to the display on page 4.
uTop 1 key
Press to activate its auxiliary function (page 4).
iTop 2 key
Press to activate its auxiliary function (page 4).
oBattery pack release latch
Pull back on this latch to release the battery pack.
AB
Microphone Speaker

4
TK-5400 OPERATING FEATURES
!0 Orange key
Press to activate its auxiliary function (page 4).
!1 PTT (Push-To -Talk) switch
Press this switch, then speak into the microphone to call
a station.
!2 Side 1 key
Press to activate its auxiliary function (page 4).
!3 Side 2 key
Press to activate its auxiliary function (page 4).
!4 Keypad (keypad models only)
Press the keys on the keypad to send DTMF tones.
!5 Universal connector
Connect the (optional) speaker/microphone here. Other-
wise, keep the supplied cover in place.
1-2. Display
Indicator Description
Displays the operating zone or channel
number (or name). Also displays various
menu functions.
Displays the operating zone, channel, or
tone number. When the zone/channel
number is between 100 and 199, the
lower dot lights. When the number is
between 200 and 299, the upper dot
also lights. Also displays tA (Talk
Around), P1 (Priority 1), or P2 (Priority 2),
and other codes, depending on the
function being used.
Appears when a channel is added to the
scanning sequence.
Appears when you are using Scan mode.
Appears when the monitor function is
active.
Appears when low power is selected.
Appears when you are using the
Operator Selectable Tone function.
Reserved for future operation.
2. Programmable Functions
Refer to the following tables to determine which func-
tions are available for appropriate channels (N/A = Not Avail-
able).
Conventional FM :
Channels set up for Conventional FM Operation
Conventional APCO :
Channels set up for Conventional APCO Operation
Trunking APCO :
Channels set up for Trunking APCO Operation
Programmable Conventional Conventional Trunking
Function FM APCO APCO
Call Response N/A ✓✓
Channel Down ✓✓✓
Channel Name ✓✓✓
Channel Select ✓✓✓
Channel Up ✓✓✓
Emergency ✓✓✓
External Speaker ✓✓✓
Function ✓✓✓
Home Channel ✓✓✓
Individual N/A ✓✓
Invert Display ✓✓✓
Key Lock ✓✓✓
Lamp ✓✓✓
Monitor ✓✓N/A
Monitor Momentary ✓✓N/A
None ✓✓✓
Operator Selectable Tone ✓• N/A
Page N/A N/A ✓
RF Low Power ✓✓✓
Scan ✓✓✓
Scan Delete/Add ✓✓✓
Scan Program ✓✓✓
Site Lock N/A N/A ✓
Speaker Attenuation ✓✓✓
Squelch Level ✓• N/A
Squelch Off ✓• N/A
Squelch Off Momentary ✓• N/A
System Search N/A N/A ✓
Talk Around ✓✓N/A
Talkgroup N/A ✓✓
Tone ✓✓✓
VOX ✓✓✓
Zone Down ✓✓✓
Zone Select ✓✓✓
Zone Up ✓✓✓
Note : Functions marked with dot (•) are available in Mixed Mode.

5
TK-5400
3. Data Programming (PC Mode)
3-1. Preparation and Connection
TK-5400 transceiver is programmed by using a personal
computer, programming interface cable KPG-36, and pro-
gramming software KPG-78D.
The programming software can be used with an IBM-PC
or compatible machine. Figure 1 shows the setup for pro-
gramming.
3-2. Programming Interface Cable KPG-36 Description
The KPG-36 is required to interface TK-5400 to the com-
puter. It has a circuit in its D-sub 25pin connector case that
converts RS-232C logic level to TTL level.
KPG-36 is used to connect between TK-5400 universal
connector and RS-232C serial port of computer.
3-3. Programming Software KPG-78D Description
KPG-78D is the programming software for TK-5400 sup-
plied on a 3.5" floppy disk. This software runs under Win-
dows 95, 98, ME or Windows 2000 on an IBM-PC/XT, AT, or
PS2 or compatible machine.
The data can be input to or read from TK-5400 and edited
on the screen. The programmed or edited data can be
printed out. It is also possible to tune the transceiver.
We recommend that install KPG-78D for example to
harddisk first then use it.
KPG-78D instruction manual part No. : B62-1593-XX.
Fig. 1
KPG-36
IBM-PC
KPG-78D
OPERATING FEATURES / REALIGNMENT
REALIGNMENT
1. Mode
Mode Function
User mode Customer use this mode
PC mode Communication between the radio
and PC (IBM compatible).
It requires the KPG-78D
PC programming mode Frequency, signalling and features
write to the radio and read from
the radio.
PC test mode Check the radio using the PC.
This feature is included in the FPU.
Panel test mode Dealer use to check the fundamen-
(Refer to Adjustment) tal characteristics.
Firmware programming mode Re-write the firmware of the flash
ROM.
2. How to Enter Each Mode
Mode Operation
User mode Power on
PC mode Power on begins the USER MODE.
Panel test mode Hold down the [Side 2] key and
[PTT], turn the radio power on, and
release [PTT] first.
Firmware programming mode Held down the [Side 2] key and
[PTT], turn the radio power on, and
release [Side 2] key first.
PC mode PC programming mode
PC test mode
PC tuning mode
Panel test mode Panel tuning mode
Firmware programming mode
User mode

6
TK-5400
3. Firmware Programming Mode
3-1. Preface
Flash memory is mounted on the transceiver. This al-
lows the transceiver to be upgraded when new features are
released in the future. (For details on how to obtain the firm-
ware, contact Customer Service.)
3-2. Connection Procedure
Connect the transceiver to the personal computer (IBM
PC or compatible) with the interface cable (KPG-36). (Con-
nection is the same as in the PC Mode.)
3-3. Programming
1. Start up the firmware programming software (Fpro).
2. Set the communications speed and communications port
in the Configuration items.
3. Set the firmware to be updated by File select.
4. Held down the [Side 2] and [PTT]. Turn the transceiver
power on, and release [Side 2] first. Until the display
change to “PROGRAM”, also the green LED turns on.
5. Check the connection between the transceiver and the
personal computer, and make sure that the transceiver is
in the Program mode.
6. Click the “Write” button on the personal computer. A
window will display to indicate progress of writing.
When the transceiver starts to receive data, “PG” is ap-
peared on 2 digit small LCD.
7. If writing ends successfully, the red LED on the trans-
ceiver lights and the checksum is displayed.
8. If you want to continue programming other transceivers,
repeat steps 4 to 7.
Notes :
• This mode cannot be entered if the Firmware program-
ming mode is set to Disable in the Programming soft-
ware (KPG-78D).
• If the updating firmware fails to update the firmware, the
red LED on the transceiver does not light and an incorrect
checksum appears.
In this case, turn the transceiver off, then turn it on. The
transceiver will automatically starts the Firmware pro-
gramming mode.
• Since the updating firmware (non-erasable) is stored in
the transceiver, you can safely upload the new control
firmware again, even if it fails.
REALIGNMENT
• Make sure the communication speed between the FPRO
program and the transceiver settings are the same. Re-
fer to section 3-4. for details.
• When programming the firmware, it is recommend to
copy the data from the floppy disk to your hard disk be-
fore your update the radio firmware.
Directly copying from the floppy disk to the radio may not
work because the access speed is too slow.
• Use a fully charged battery to load firmware into the
transceiver.
• Do not turn the power off while loading the firmware.
• If the firmware is loaded in Firmware Programming
Mode, use Fpro.EXE of Version 3.01 or later.
• If the firmware is loaded into the transceiver using
Fpro.EXE of Version 3.00 or earlier, the old firmware in
the transceiver must be erased before loading the new
firmware.
3-4. Function
1. If you press the [Top 2] key while “PROGRAM” is dis-
played, the checksum is displayed. If you press the
[Top 2] key while the checksum is displayed, “PRO-
GRAM” is redisplayed.
2. A transmission speed can be selected by pressing the
[Top 1] key while “PROGRAM” is displayed.
19200bps : P R O G R A M.1 dot lights
38400bps : P R O G R A.M.2 dot lights
57600bps : P R O G R.A.M.3 dot lights
3. Firmware Erasing Method
Hold down the [orange] key in Firmware Programming
Mode for longer than two seconds, “PROGAM” appears
on the LCD, the Orange LED illuminates, and firmware
erasure begins.
When the firmware is erased from the transceiver, the
Orange LED goes off.
Note :
Normally, write in the high-speed mode.
4. Panel Test Mode
Setting method refer to ADJUSTMENT.

7
TK-5400
DISASSEMBLY FOR REPAIR
Disassembly of Front Case and Chassis
1. Remove the 2 screws (
1
) and a cap fixed screw (
2
).
2. Press the chassis bottom upwards and remove the clips
(
3
) at the top. The front case is still connected to the
chassis by the FPC at this time so be gentle when lifting
upwards, otherwise unwanted stress is applied on the
FPC.
3. The front case and chassis can only be opened to the
side when connected by the FPC (
4
).
Remove the TX-RX Unit from the Chassis
1. The TX-RX unit cannot be removed simply by removing
the eight screws (
5
).
2. A total of eight solder connections on the RF power am-
plifier board (
6
).
Remove the Universal Connector
1. The universal connector (
7
) is fastened to the chassis
with double-side tape.
2. Press firmly with a tool such as a screwdriver and so that
it can peel (
8
).
Note : You must replace both parts together when re-
placing the universal connector or the FPC (
9
).
Remove the Side Key Assy
1. The side key assy is clips form a slide-hook structure. Lift
up gently and take from the side (
10
).
Disassembly of the Panel Assy
1. The LCD assy and toggle switch are joined by wire (
11
).
Use caution not to break this wire during handling.
3
2
1
4
Front case
Chassis
5x8
7
9
8
6
6
6
6
10 Side key assy
11
LCD assy
Toggle switch
Panel assy

8
TK-5400
1. Overview
The KENWOOD model TK-5400 is an 800MHz/FM/APCO
hand-held transceiver designed to operate in the frequency
range of 806 to 825MHz (TX)., 851 to 870MHz (TX/RX), the
unit consists of a receiver, a transmitter, a phase-locked
loop (PLL) frequency synthesizer, base band parts, power
supply circuits, a control unit.
2. Circuit Configuration by Frequency
The receiver is a double-conversion superheterodyne us-
ing first intermediate frequency (IF) of 44.85MHz and sec-
ond IF of 455kHz. Incoming signals from the antenna are
mixed with the local signal from the PLL circuit to produce
the first IF of 44.85MHz.
This is then mixed with the 44.395MHz second local os-
cillator output to produce the 455kHz second IF. This signal
is detected to give the demodulated signal in the DSP.
The transmit signal frequency is generated by the PLL
VCO, and modulated by the signal from the DSP. It is then
amplified and fed to the antenna.
The VCO oscillation frequencies are 403 to 412.5MHz
and 425.5 to 435MHz, and locking occurs at both ranges of
doubled frequencies of 806 to 825MHz and 851 to 870MHz.
The VCO output components, other than the doubled fre-
quencies, are eliminated by a band-pass filter, and the re-
sulting signal is amplified by a buffer amplifier (Q201) and
routed to pin 5 of the PLL IC. The VCO output is amplified
by two buffer amplifiers (Q205, Q206) and routed to the
transmit drive stage and receiver mixer through the TX/RX
switch (D101, D102).
The PLL IC consists of a prescaler, a fractional divider, a
reference divider, phase a comparator and a charge pump.
The PLL IC is a fractional N type synthesizer and operates at
100kHz, which is 8 times the 12.5kHz channel step. The
input signal from pins 5 and 16 of the PLL IC are divided to
100kHz in the PLL IC and compared with a phase compara-
tor. The pulse output signal of the phase comparator is ap-
plied to the charge pump and converted to a DC signal with
a loop filter (LPF). The DC signal is applied to pin 4 of the
VCO and locked to keep the VCO at a fixed frequency.
The PLL division data is output from DPM (pin 29), CPM
(pin 30) and EPM (pin 31) of the microprocessor (IC507),
converted by level converters (IC201, IC203, IC202) and in-
put to the PLL IC. This division data is fed to the PLL IC
when the channel is changed or when transmission is
switched to reception. The PLL frequency lock state is al-
ways monitored with pin 78 (UL) of the microprocessor.
When the PLL is unlocked, the UL goes Low.
When the TK-5400 is operated for Talk Around, the trans-
mit frequency is 851 to 870MHz, so pin 5 (TA) of the VCO is
made Low during transmission and the VCO oscillation fre-
quency band is switched. The control signal that is sent to
pin 5 of the VCO is output from the shift register IC (IC701)
controlled by the microprocessor, and a High signal is output
except for Talk Around transmission.
Fig. 1 Frequency configuration
3.PLL Frequency Synthesizer
The PLL frequency synthesizer of the TK-5400 trans-
ceiver consists of a VCXO (X201), a VCO (L702), a PLL IC
(IC204) and a buffer amplifier (Q201).
The PLL reference oscillator VCXO produces 16.8MHz
and its frequency stability is 1.5 ppm or less (Temperature
range –30 to +60°C). VCXO frequency tuning and modula-
tion are performed by applying voltage to pin 1 of the VCXO.
The VCXO oscillation output is applied to pin 16 of the PLL
IC. Fig. 2 PLL block diagram
CIRCUIT DESCRIPTION
ANT
TX 806~825MHz
851~870MHz
RX 851~870MHz
ANT
SW
RF
AMP
PA
AMP
TX
AMP
1st MIX MCF
OSC
44.85MHz
CF
455kHz
MIX
IF AMP
AF
AMP
SP
44.395MHz
806.15~
825.15MHz
806~825MHz
851~870MHz
PLL
VCO
A/D
D/A
DSP
MIC
AMP
MIC
VCO BPF BUFF
BUFFLPF
PLL IC
BUFF SW
VCXO DAC
CPU Level
Shifter
SW
CV
IC204
L702 Q205 Q206 D101
D102
To mixer
To
drive
amp
IC605IC607X201
Q201
TA
(TA :
LOW)
IC507
UL TO
16
5
1
IC201
IC202
IC203
DPM
CPM
EPM

9
TK-5400
4. Power Supply Circuit
The battery power (+B) is supplied from the battery ter-
minal to the TX-RX unit through a 3A fuse. The power (SB)
that passes through the power supply are routed to three
AVR ICs (IC702, IC704, IC705), the DC/DC converter IC
(C402) and the power transistor switch (Q5,Q6 : Control
unit) for the audio amplifier IC. It is then reduced to 3.8V by
the DC/DC converter IC and the signal goes to the three
AVR ICs (IC403, IC404, IC405).
5C is common 5V. Unless SAVE is set to OFF, 5V is al-
ways output. 5R is 5V for the receive circuitry and 5V is
supplied to the RF receive circuit during reception. 5T and
5TB are 5V for the transmit circuitry and 5V is supplied to the
RF transmit circuit during transmission. 5M supplies 5V to
the shared circuits. 33D mainly provides 3.3V to the micro-
processor (IC507), DSP (IC611) I/O section and memory IC
(IC508). 25D supplies 2.5V to the DSP core. 33A mainly
supplies 3.3V to the A/D converter IC (IC609) for reception
and the codec IC (IC608). 33AR provides 3.3V to the 2nd IF
amplifier (IC302) for reception.
The power (Vp) switched from the SB by Q5 and Q6 (con-
trol unit) supplies approx. 7V to the audio amplifier IC (IC1).
The transmit power amplifier power supply (Vd) provides
approx. 7.2V from +B through the 3A fuse and current de-
tection resistor.
5. Receiver System
5-1. Front-end RF Amplifier
The signal are passed through an antenna matching coil,
where the high-frequency components are amplified by a
dual gate FET (Q302). The signals are then fed through the
band-pass filter (L302, L307) to reject unwanted signal com-
ponents, and is fed to the 1st mixer.
5-2. First Mixer
The 1st mixer uses the IC (IC301). The 1st mixer mixes
the signal with the signal 1st local oscillator frequency from
the VCO, and converts it to the 1st IF (44.85MHz).
The signal then passes through monolithic crystal filter
(XF301) to remove unnecessary nearby frequency compo-
nents. The signal from the MCF is used as the 1st IF signal.
Item Rating
Nominal center frequency 44.85MHz
Pass bandwidth ±5 to 7kHz at 3dB
Attenuation bandwidth ±25kHz or less at 30dB
Ripple 1.0dB or less
Insertion loss 4dB or less
Guaranteed attenuation 80dB or more at fo±910kHz
40dB or more within fo±1MHz
Terminating impedance 350Ω/4.5pF
Table 1 Crystal filter XF301 (L71-0588-05)
Fig. 3 Power supply circuit
CIRCUIT DESCRIPTION
IC705
AVR IC
5M
IC402
DC/DC IC
IC401
REG
IC405
AVR IC
Q306
FET SW
33D
Q712
Tr SW
SB
33AR
33A
25D
33D
5M
5TR
5TBC (Shift Register)
IC701 (14 pin)
5C
5C
5TB
5T
5T
5R
5RC (Shift Register)
IC701 (6 pin)
AMP SW (Shift Register)
IC701 (4 pin)
5TC (Shift Register)
IC701 (5 pin)
5CC (Shift Register)
IC701 (7 pin)
5V
3.3V
3.3V
2.5V
3.8V
5V
5V
7V
+B 7.5V
3A FUSE
Q702
Power SW
5V
Vd
Vp
7.2V
IC404
AVR IC
25D
Q709
FET SW
Q714
FET SW
IC403
AVR IC
IC702
AVR IC
IC704
AVR IC
Q5,Q6
Tr SW
33A
Q302
RF AMP
T/R
SW
IC301
1st MIX
L302
BPF
X301
44.395MHz
Q304
1st IF AMP
IC303
MIX, IF AMP
L307
BPF
XF301
MCF CF302
CF301
OSC
Fig. 4 Receiver system

10
TK-5400 CIRCUIT DESCRIPTION
5-3. IF Amplifier
The 1st IF signal is amplified (Q304) and fed into IC303 in
the MIX, IF AMP IC. The IF signal is then mixed with the
2nd local oscillator frequency of 44.395MHz to generate the
2nd IF of 455kHz. The 455kHz signal is then passed through
a ceramic filter (CF301) and fed back into IC303 for addi-
tional amplification. Again the 455kHz signal is then passed
through a ceramic filter (CF302).
5-4. Digital Signal Processor (DSP) Demodulation
Processing
The 455kHz signal that passes through the ceramic filter
is amplified to the appropriate value by the 2nd IF amplifier
and fed to ADC (pin 6 of IC609). The base band signal A/D-
converted at the ADC is processed by the DSP (IC611).
The DSP performs FM demodulation for FM signals and
C4FM demodulation for C4FM signals. Then, the base band
signal is D/A-converted and an AF signal is output from
CODEC (pin 15 of IC608).
The D/A-converted noise component enters the SW (pin
5 of IC706) through CODEC (pin 16 of IC608) and is output
as a squelch noise signal.
IC608
CODEC
IC611
DSP
IC609
ADC
IC302
2nd IF
AMP
IC706
SW
MOD
AF
NOISE
Fig. 5 DSP demodulation processing
5-5. Squelch Circuit
The output from the SW (IC706 pin 6), goes through a
low-pass filter (IC601 2/2). The noise component from
IC601 (2/2) is amplified by Q602 and rectified by D602 to
produce a DC voltage corresponding to the noise level. The
DC voltage is fed to the CPU (IC507 pin 88).
5-6. Audio Amplifier Circuit
•TX-RX unit
The converted D/A signal from IC608 is amplified by AF
amplifier IC606 (2/2). The signal then goes through an elec-
tronic volume control (IC605), an AF amplifier IC607 (2/2),
and an AF switch (Q8 is on and Q7 is on/off the control unit),
and is routed to audio power amplifier (IC1 of the control
unit), where the signal is amplified and output to the internal
speaker.
•Control unit
The audio mute signal (AMP SW) from the microproces-
sor becomes Low in the standby mode and Q5 and Q6 in
the power supply circuit for IC1 are turned off. When the
audio outputs, AMP SW becomes High to turn Q5 and Q6
on, and the DC is supplied to power terminal VP of IC1.
Speaker switching is performed by the IC701 (TX-RX unit)
using INT AFC or EXT AFC. First, the logic level at the
speakers switching terminal (SSW) on the universal connec-
tor is fed to the microprocessor (IC507 TX-RX unit). The mi-
croprocessor then outputs data to IC701 based on this in-
put.
When there is no SP-MIC installed, this logic level be-
comes high. When the INT AFC is high, the EXT AFC goes
low, so the AF signal is only fed to the amplifier for the inter-
nal speaker (INT SP) of IC1.
However, when a SP-MIC has been connected, this logic
level becomes low, so the INT AFC goes low and the EXT
AFC goes high. In this case, the AF signal is fed only to
amplifier for the external speaker (EXT SP) of IC1.
IC601
LPF AMP
Q602
NOISE
AMP
D602
DET
IC507
CPU
Fig. 6 Squelch circuit
IC607
AF AMP
IC605
DAC
VOL
IC606
AF AMP
SWSW
SW
Q7
Q15
Q8
INT AFC
EXT AFC
INT.SP
EXT.SP
Q6
Q5
SB
AMP SW
AF
AF
IC1
Fig. 7 Audio amplifier circuit

11
TK-5400
CIRCUIT DESCRIPTION
6. Transmitter System
6-1. Microphone Amplifier
The signal from the noise canceller amplifier (control unit
IC3) passes through the MIC changeover circuit (Q711), the
mute switch (Q713) and the AGC circuit, and goes to the
microphone amplifier IC (IC602).
When an accessory speaker microphone (SP-MIC) is not
installed, the microphone switching terminal (MSW/CTS)
goes high and the microphone changeover switch (Q711)
turns on. When the SP-MIC is installed, the MSW/CTS is
connected to GND in the SP-MIC, Q711 turns off, the inter-
nal microphone is muted and only the external microphone
input is supplied to the microphone amplifier of the TX-RX
unit.
The AGC circuit consists of IC602 (1/2), D600, D601,
Q600 and Q601. The AGC is operated by using the current
obtained by detecting positive or negative polarity of the au-
dio signal amplified by IC602 (1/2) and controlling the posi-
tive (+) and negative (–) level of the amplifier.
The transmit audio signal output from IC602 (2/2) is input
to pin 3 (AINL) of the codec IC (IC608) and converted from
analog to digital. The digitalized transmit audio signal under-
goes AGC processing, pre-emphasizing, filtering, vocoding
(in APCO mode), and returns to the codec IC (IC608). The
signal is converted from digital to analog and an analog sig-
nal (C4FM base band signal in APCO mode) is output from
pin 16 (AOUTR).
The audio signal that is DSP-processed by the codec IC
(IC608) and DSP (IC611) passes through the analog switch
(IC706) and amplifier (IC606, IC604) and goes to the D/A
converter (IC605). The audio signal whose maximum devia-
tion is adjusted by the D/A converter passes through the AF
switch (Q202 is off in TX mode) and goes to VCO modula-
tion input. The audio signal whose modulation balance is
adjusted by the D/A converter passes through a buffer am-
plifier (IC607) and goes to VCXO modulation input.
6-2. Noise Cancelling Microphone Circuit
The two signals from INT MIC (Main & Sub) are fed to the
positive (+) input (Sub) and to the negative (–) input (Main) of
the IC3. If the same signals is fed to both Main and Sub, the
Main signal is terminated at the output of IC3 (pin7). In an-
other words, noise from nearby sources not directly con-
nected to the transceiver enters the Main and Sub input at
the same signals and is therefore canceled out.
When a signal is only fed to the Main and there is no
signal at the Sub, IC3 (pin 7) outputs the Main signal as it is.
In other words, only the voice audio of the operator to the
Main MIC is input to the Main so that “N/C” switch is set to
“L”, transistor Q14 is turned off and the Sub microphone
also is turned off and the operation is same as above.
6-3. Drive and Final Amplifier
The signal from the T/R switch (D101 is active) is ampli-
fied by the pre-drive (Q101) and drive amplifier (Q103) to
50mW. The drive amplifier output is amplified by the RF
power amplifier (Q1, Q2, Q3) to 3W (1W when the power is
low).
The RF power amplifier has two-stage MOS FET transis-
tor. The output of the RF power amplifier is then passed
through the Transmit-Receive (TX-RX) antenna switching
(D103 is active) and low-pass filter (LPF) and applied to the
antenna terminal.
6-4. APC Circuit
The APC circuit always monitors the current flow through
the RF power amplifier (Q1, Q2 or Q3) and maintains a con-
stant current. The voltage drop at R101, R102 and R103 is
caused by the current flow through the RF power amplifier
and this voltage is applied to the differential amplifier (IC101
1/2).
IC101 (2/2) compares the output voltage of IC101 (1/2)
with the reference voltage from IC605. The output of IC101
(2/2) controls the voltages the VGG of the RF power ampli-
fier to make the both voltages to same voltage.
The power high/low switching is carried out by changing
the reference voltage. The Q102, Q104 and Q105 are
turned on in transmit and the APC circuit is active.
Fig. 8 Microphone amplifier
SW
MSW/CTS
CODEC
DSP
MIC
MAIN
SUB
Q711IC3
(CONT)
Q710
MIC
N/C
AMP
(IC703)
MUTE
SW
AMP AMP
ATT AMP
DET
Q600
Q601
D600
D601
IC602
VCO
SW
VCXO
BUFF
AMP
SW
IC706
L702Q202IC605
D/A
IC606 IC604
IC607 X201
5R
IC608
IC611
EXT.
MIC
Pre
DRIVE
AMP
Q101
R101
DRIVE
AMP
Q103
TX-RX
ANT
SW
LPF
ANT
D103
RF
POWER
AMP
Q1,2,3
SW
Q105
SW
Q102
SW
Q104
R102
R103
VGGVDD
From
T/R SW
(D101)
+B
REF
VOL
(IC605)
IC101
(2/2)
IC101
(1/2)
––
++
Fig. 9 Drive and final amplifier and APC circuit

12
TK-5400
7. Control Circuit
The control unit has microprocessor IC507, flash
memory IC508, and its peripheral circuits. It controls the TX-
RX unit and transfers data to and from the control unit. The
CPU (IC507) mainly performs the following:
1) Switch between transmission and reception with the PTT
signal input.
2) Read a channel, frequency, and program data from the
memory circuit.
3) Send a frequency program data to the PLL.
4) Control the audio mute circuit by decode data input.
5) Send serial data to output expander (IC701, IC703) to
control various function in the unit.
7-1. CPU
The CPU (IC507) is a 16bit single-chip microprocessor,
equipped with a 64k ROM and 10k RAM. This CPU oper-
ates at 12.288MHz clock and 3.3V DC. Controls the flash
memory IC, the DSP, the receive circuit, the transmitter cir-
cuit, the control circuit, and the display circuit and transfers
data to or from an external device.
7-2. Memory Circuit
IC508 is a flash memory with 8M bits capacity that stores
the transceiver control program for the CPU and the data
such as transceiver channels and operating parameters.
This program can be easily written from an external de-
vices. The data, such as DTMF memories and operating
parameters, are stored into the EEPROM (IC505).
7-3. Shift Register Circuit
IC701 and 703 are interface ICs for the output port expan-
sion. It is used to expand the CPU (IC507) output ports.
7-4. D/A Converter
IC605 is used as a conventional semi-fixed-resister con-
verter. It controls the followings:
1) Transmission power
2) Modulation level
3) Audio power
4) Frequency
7-5. Key Input
Kl1 or Kl2 becomes HIGH when a key is pressed (or En-
able signal on the optional circuit).
When Kl1 or Kl2 becomes HIGH, Kl0 also becomes HIGH
to trigger the interrupt to IC507 in order to start the key
scan.
When the key scan starts, the output terminals (Q1~Q5)
become LOW. Only the key sensing circuit remains HIGH.
When a key is pressed, the signal routed through Kl1 or Kl2
to the microprocessor. Then, the microprocessor deter-
mines which key is pressed using this signals.
CPU
IC507
FLASH
ROM
IC508
EEPROM
IC505
IC506
Reset IC
TCXO
X501 IC502
12.288MHz
IC701,703
IC605
D/A IC
Shift
Register IC
CODEC IC
IC608
IC609
A/D IC
DSP
IC611
Fig. 10 Control circuit
CIRCUIT DESCRIPTION
IC2
IC504 IC507
Q1 Q2 Q3 Q4 Q5
CPU
Monitor
SW A SW B AND IC
Tone1 Tone2
AND IC
AND IC
CLK
DAT
STB
CLK
DAT
STB
OPPTT
IC5
IC6IC4
TCONTMAN D
KEY1
KEY2
Level
Shifter IC
Fig. 11 Key input
7-6. Low Battery Warning
The battery voltage is monitored by the microprocessor
(IC507). When the battery voltage falls below the voltage
set by the Low battery warning adjustment, the red LED
blinks to notify the operator that it is time to replace the bat-
tery. If the battery voltage falls even more (approx. 6.0V), a
beep sounds and transmission stops.
Low battery warning Battery condition
The red LED blinks during The battery voltage is low but
transmission the transceiver is still usable.
The red LED blinks and The battery voltage is low but
continuous beep sounds the transceiver is not usable to
while the PTT pressed make calls.

13
TK-5400
CIRCUIT DESCRIPTION / SEMICONDUCTOR DATA
7-7. DSP
The DSP circuit consists of a DSP (IC611), a codec
(IC608), and an A/D converter (IC609) and processes the
base band signal. The DSP (IC611) operates on an external
clock of 12.288MHz (the same as the CPU), the I/O section
operates at 3.3V and the core section operates at 2.5V. The
DSP carries out the following processes:
• C4FM modulation and demodulation
• Analog FM modulation and demodulation
• Vocoder (IMBE) processing between audio codec and
modulation/demodulation
• CAI processing, such as error correction encoding
• QT/DQT encoding/decoding
• DTMF encoding
• Compressor/expander processing
• Transmit/receive audio filtering processing
• VOX processing
• Microphone amplifier AGC processing
• Beep tone generation, audio mute processing
• Modulation level processing
8. Signaling Circuit
8-1. Encode (QT/DQT/DTMF)
Each signaling data signal of QT, DQT and DTMF is gen-
erated by the DSP circuit, superposed on a modulation sig-
nal and output from pin 16 of the codec IC (IC608).
The modulation balance of the QT/DQT signal is adjusted
by the D/A converter (IC605) and the resulting signal is
routed to the modulation input of the VCO (L702) and VCXO
(X201).
The DTMF deviation of the TX DTMF tone is adjusted by
the D/A converter (IC605) and the resulting signal is routed
to VCO and VCXO. The RX DTMF tone is output from pin 15
of the codec IC, passes through the receive audio signal sys-
tem, and is output from the speaker.
8-2. Decode (QT/DQT)
The audio signal is removed from the FM detection signal
sent to the DSP circuit and the resulting signal is decoded.
9. Compander Circuit
The term “compander” means compressor and ex-
pander. The compander reduces noise by utilizing a com-
pressor and an expander.
The TK-5400 contains DSP IC (IC611) to perform this op-
eration. The TK-5400 compander can be turned on or off
using the FPU.
2-bit Shift
register
22-bit Shift
register
Address decoder Control
latch
Reference
divider
Latch
Latch
2222
SM
Phase
detector
SA
AUX divider
Latch
Main divider
Phase
detector
COMP
14
8
1
9
11
Load signals
Pump
bias
Pump
current
setting
Amp
Amp
3
13
17
18
19
5
16
15
12
2
4 7,10
6
CLOCK
DATA
STROBE
RFin+
RFin–
REFin+
REFin–
AUXin
TEST
R
SET
V DD
V DDCP
20 PON
PHP
PHI
LOCK
PHA
GND GND
CP
1. PLL : SA7026DH (TX-RX Unit IC204)
1-1. Block Diagram
1-2. Pin Function
Pin No. Pin Name Function
1 LOCK Lock detect output
2 TEST Test (should be either grounded or
connected to VDD)
3VDD Digital supply
4 GND Digital ground
5 RFin+ RF input to main divider
6 RFin– RF input to main divider
7 GNDCP Charge pump ground
8 PHP Main normal charge pump
9 PHI Main integral charge pump
10 GNDCP Charge pump ground
11 PHA Auxiliary charge pump output
12 AUXin Input to auxiliary divider
13 VDDCP Charge pump supply voltage
14 RSET External resistor from this pin to ground
sets the charge pump current
15 REFin– Reference input
16 REFin+ Reference input
17 CLOCK Programming bus clock input
18 DATA Programming bus data input
19 STROBE Programming bus enable input
20 PON Power down control

14
TK-5400
2-1. Terminal Function
No. Port Name I/O Function
1 P94/DA1/TB41N I Not used : GND Pull-down
2 (HSDO) O HSD Output (Not used)
3 PWR O SB Contorol
4 SCL O EEPROM Clock
5 SDA I/O EEPROM Data
6 BYTE I Data Bus 8 bits
7 CNVss I Extended Memory Mode
8 BSW O Battery Detect SW
9 (CLKS) O Beat Shift (Not used)
10 RESET - Reset Iuput
11 Xout - NC
12 Vss - GND
13 Xin - 12.288MHz
14 Vcc - +3.3V
15 NMI I Not used : Vcc Pull-up
16 BDET (INT2) I µ-com Stop Interrupt
17 PSW (INT1) I Power Switch Detect
18 HINT (INT0) I DSP Interrupt
19 CLKM O Common Data
20 DATM O Common Clock
21 LDM O D/A CS
22 LCDCSM O LCD CS
23 KESM O Key Counter CS
24 STBM O Shift Register CS
25 P73 I Not used : GND Pull-down
26 SOE O Shift Register OE
27 PTT I PTT
28 EXSP I Ext. SP Install Check
29 DPM O PLL Data
30 CPM O PLL Clock
31 LEM O PLL CS
32 CTSM I CTS
33 TXDM O TXD
34 RXDM I RXD
35 DSRM I DSR
36 RTSM O RTS
37 RDY I DSP Ready
38 ALE O NC
No. Port Name I/O Function
39 HOLD I Not used : Vcc Pull-up
40 HLDA O NC
41 BCLK O Not used : Vcc Pull-up
42 RD O Flash Memory RD bus
43 BHE O NC
44 WR O Flash Memory WR bus
45 FRBSY I Flash Memory RY/BY
46 DSPRST O DSP RESET
47 CS1 O DSP CS
48 CS0 O Flash ROM CS
49~59 A19~A9 O Flash Memory Address bus
60 Vcc - +3.3V
61 A8 O Flash Memory Address bus
62 Vss - GND
63~70 A7~A0 O Flash Memory Address bus
71 CH_A I Rotary SW 1
72 CH_B I Rotary SW 2
73 CH_C I Rotary SW 3
74 CH_D I Rotary SW 4
75 TGL I Toggle SW
76 SELF I Not used
77 DINT O DSP Interrupt
78 UL I PLL Lock Detect
79~86 D7~D0 I/O Flash Memory Data bus
87 (SENSB) I TX Inhibit
88 P106/AN6/K23 I SQL Level
89 CV I VCO CV
90 (RSSI) I RSSI Level
91 (TEMP) I Temperature
92 BATT I Battery Level
93 REM I SP Key 1/2
94 Avss - GND
95 VOL I Volume Level
96 Vref - +3.3V
97 Avcc - +3.3V
98 KEY1 I Key Counter Return 1
99 KEY2 I Key Counter Return 2
100 KEY0 I Key Input
2. Microprocessor : 30620M8A-2W4GP (TX-RX Unit IC507)
SEMICONDUCTOR DATA

15
TK-5400
SEMICONDUCTOR DATA
C1
C5
L4 R4
C7
C19
L5
L2
D1
C6
C8
C4 C3
C20
C2
TC1
R3
R9
L3L1
R1
MOD1
MOD2
GND
CV
R2
D2
Q1
C9
C13
L9 R6 R8 OUT
GND
4C
TA
C17
C15
C21
L10
L7
D3
C14
C16
C12 C11
D5 D6
C22
C10
TC2
R5
R7
C18
L11
L8L6 D4
Q2
Q3
Q5
Q4 L12
3
4
2
1
6
5
7
8
4. VCO : L78-0500-05 (TX-RX Unit L702)
4-1. Schematic Diagram
Phase
compensation
Error amp PWM
comparator
Buffer
driver
Vref with
soft start,
CE
PWM/PFM
controller
Ramp wave
generator,
OSC
+
–+
–
3
1
3
2
5
FB
CE
EXT/
VDD
GND
3. DC/DC Converter : XC6365D103M (TX-RX Unit IC402)
3-1. Block Diagram 3-2. Pin Assignment
Pin No. Pin Name Function
1 EXT/ External transistor connection
2 VDD Power supply
3 GND Ground
4 CE Chip enable
5 FB Output voltage set-up external

16
TK-5400
Control Unit (X53-4030-XX) -10 : K, -11 : K2
Ref. No. Part Name Description
IC1 Bi-polar IC AF Amplifier
IC2 MOS IC Shift Register
IC3 MOS IC MIC Noise Canceling Circuit
IC4~6 MOS IC Option Board Control SW
IC7 MOS IC Shift Register
IC10 MOS IC Inverter
IC101 MOS IC LCD Driver
Q5 Transistor Power Supply SW Control
Q6 Transistor AF Amplifier Power Supply SW
Q7 FET Internal Audio Mute SW
Q8 FET Audio Mute SW
Q14 Transistor Noise Canceling SW
Q15 FET External Audio Mute SW
D2 Zener diode AVR
D6~9 LED Back Light
D11~20 Diode Reverse Current Prevention
D101 Diode Speed up
D102,103 LED Back Light
D104 LED TX/RX LED
D105 Diode Surge Absorption
Ref. No. Part Name Description
IC702 MOS IC Voltage Regulator
IC703 MOS IC Shift Register
IC704,705 MOS IC Voltage Regulator
IC706 MOS IC Dual Bilateral Switch
Q1 FET RF Driver Amp.
Q2,3 FET RF Final Amp.
Q101 Transistor RF Amp.
Q102 Transistor Switch
Q103 Transistor RF Amp.
Q104,105 FET Switch
Q201 Transistor RF Amp.
Q202 FET Switch
Q204 Transistor Filter
Q205,206 Transistor RF Amp.
Q301 Transistor RF Switch
Q302 FET First Amp.
Q304 FET IF Amp.
Q305 Transistor Oscillator
Q306 FET Switch
Q401 FET DC/DC Converter
Q501 FET Switch
Q600,601 Transistor AGC
Q602 Transistor Noise Amp.
Q701,702 FET Switch
Q703 Transistor Switch
Q704 FET Switch
Q705~707 Transistor Switch
Q708,709 FET Switch
Q710 Transistor Switch
Q711~714 FET Switch
D101 Diode Local Switch
D102 Zener diode Voltage Protection
D103 Diode Antenna Switch
D105 Diode Surge Absorption
D201 Diode Filter
D202 Diode Local Switch
D301,302 Diode Attenuater
D401 Diode DC/DC Converter
D402,403 Diode Output Stabilization
D501,502 Diode Reverse Current Protection
D504 Diode Diode OR Circuit
D600,601 Diode AGC
D602 Diode Rectification
D603 Diode Reverse Current Protection
D701 Diode Reverse Protection
D702 Diode Regulator
D703 Diode Diode OR Circuit
D704,705 Zener diode Surge Absorption
COMPONENTS DESCRIPTION
TX-RX Unit (X57-6530-10)
Ref. No. Part Name Description
IC101 MOS IC Auto Power Control
IC201~203 MOS IC Level Converter
IC204 MOS IC PLL
IC205 MOS IC DC Amp.
IC301 MOS IC DBM
IC302 Analog IC IF Amp.
IC303 Bi-polar IC Mixer and IF system
IC401 MOS IC Voltege Detector
IC402 MOS IC DC/DC Converter
IC403~405 MOS IC Voltege Regulator
IC502 MOS IC Buffer
IC504 MOS IC Level Converter
IC505 ROM IC EEPROM
IC506 MOS IC Voltage Detector
IC507 MCU MPU
IC508 SRAM IC Flash Memory
IC509~511 MOS IC Level Converter
IC601~604 MOS IC Op. Amp.
IC605 MOS IC D/A Converter
IC606,607 MOS IC Op. Amp.
IC608 MOS IC Codec
IC609 MOS IC A/D Converter
IC611 MPU DSP
IC701 MOS IC Shift Register

TK-5400
PARTS LIST
17
✽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: Canada
Y: PX (Far East, Hawaii) T: England E: Europe
Y: AAFES (Europe) X: Australia M: Other Areas
TK-5400 (Y50-5680-XX)
CONTROL UNIT (X53-4030-XX)
New Desti-
parts nation
Ref. No.
Address Parts No. Description
New Desti-
parts nation
Ref. No.
Address Parts No. Description
11B✽A02-3786-13 CABINET ASSY K
11A✽A02-3787-13 CABINET ASSY (WITH DTMF KEY) K2
23A✽A10-4056-03 CHASSIS
3 3B A22-2501-25 SUB PANEL
4 3B A62-0537-53 PANEL ASSY
6 1C B03-0594-04 DRESSING PLATE ACCESSORY
7 1C B09-0363-03 CAP ACCESSORY
8 2B B11-1183-14 ILLUMINATION GUIDE
9 2B B38-0786-05 LCD
10 1D ✽B62-1606-00 INSTRUCTION MANUAL
11 3A ✽B72-2066-04 MODEL NAME PLATE
13 1D D32-0421-24 STOPPER ACCESSORY
15 2B E23-1102-14 TERMINAL (CONT-GND)
16 3A E23-1163-04 BATT TERMINAL
17 2B E29-1165-05 INTER CONNECTOR (LCD)
- E30-3325-05 TRUNK CABLE
19 2B E37-0682-05 FLAT CABLE (TX/RX-CONT)
20 1A,1B E37-0684-05 LEAD WIRE WITH CONNECTOR (SP)
21 2B E37-0692-05 PROCESSED LEAD WIRE (TOGGLE SW)
22 2A E37-0722-05 RF COXIAL CABLE
23 3A E58-0440-05 UNIVERSAL CONNECTOR
24 3A E72-0411-04 TERMINAL BLOCK (BATT+)
26 3A ✽F10-2429-04 SHIELDING CASE (FINAL AMP)
27 2A ✽F10-2430-03 SHIELDING CASE (TX/RX)
28 2A ✽F10-2431-03 SHIELDING CASE (TX/RX)
30 2A,1B G01-0891-04 COIL SPRING (BATT RELEASE)
31 2B G11-2554-04 SHEET (TOP KEY)
32 3B G11-2555-04 SHEET (TOGGLE SW)
33 3B G11-4095-04 SHEET (SUB PANEL)
34 2A ✽G11-4210-14 SHEET (SHIELDING CASE)
35 2A ✽G11-4211-04 SHEET (SHIELDING CASE)
36 2B G11-4241-04 SHEET (TOGGLE SW)
37 2A G11-4242-04 SHEET (TX/RX)
38 3A G11-4243-04 SHEET (TX/RX)
39 3A G13-1678-04 CUSHION (TX/RX)
40 1C G13-1688-04 CUSHION (CAP)
41 3B G13-1772-04 CUSHION (SUB PANEL)
42 3A G13-1800-04 CUSHION (BATT TERMINAL)
43 2B ✽G13-1942-04 CUSHION (CONT)
44 3A ✽G13-1946-04 CUSHION (TX/RX)
45 2A ✽G13-1947-04 CUSHION (TX/RX)
46 2B ✽G13-1955-04 CUSHION (CONT)
47 2B ✽G13-1956-04 CUSHION (CONT)
48 3A G53-0822-04 PACKING (PANEL-SUB PANEL)
49 1B G53-0823-04 PACKING (SPEAKER)
50 2B G53-0874-03 PACKING (RING)
51 3A G53-1511-04 PACKING (TERMINAL BLOCK)
52 3A G53-1518-04 PACKING (BATT TERMINAL)
54 2C H12-3018-02 PACKING FIXTURE
55 1C H25-0029-04 PROTECTION BAG (60/110/0.07)
56 3D ✽H52-1880-02 ITEM CARTON CASE
58 2A,1B J19-5330-14 HOLDER (BATT RELEASE)
- J21-8326-14 HARDWARE FIXTURE (SIDE KEY)
60 2B J21-8328-14 HARDWARE FIXTURE (LCD)
61 2B J21-8329-14 HARDWARE FIXTURE (CONT)
62 3B J21-8343-14 HARDWARE FIXTURE (TOP KEY)
63 1A,1B J21-8426-04 HARDWARE FIXTURE (SIDE KEY)
64 1A,1B J21-8446-04 HARDWARE FIXTURE (SIDE KEY)
65 1C J29-0652-35 BELT CLIP ACCESSORY
6 1A,1B J82-0047-15 FPC (SIDE KEY)
67 3A J82-0049-15 FPC (VOL-ENC)
68 3A J82-0052-15 FPC (UNIVERSAL CONNECTOR)
69 2B J99-0346-24 ADHESIVE TAPE (TOGGLE SW)
71 3B K29-5172-32 KEY TOP (TOP KEY)
72 2A K29-5193-23 KEY TOP (DTMF) K2
73 2A,1B K29-9250-03 LEVER KNOB (BATT RELEASE)
74 3B K29-5282-14 KNOB ASSY (ENCODER)
75 3B K29-5283-14 KNOB ASSY (VOLUME)
76 1A,1B K29-5441-14 KNOB ASSY (SIDE KEY)
77 1A,1B K29-9139-13 KNOB TOP (SIDE KEY)
A 3B N14-0578-04 CIRCULAR NUT (VOL/ENC)
B 3B N14-0594-04 CIRCULAR NUT (ANT CONNECTOR)
C 3A N30-2608-45 PAN HEAD MACHINE SCREW
D 2A N35-2605-45 BINDING HEAD MACHINE SCREW
E 1A,1B N78-2030-46 PAN HEAD TAPTITE SCREW
F 3A N79-2035-46 PAN HEAD TAPTITE SCREW
G 2B,3B N83-2004-45 PAN HEAD TAPTITE SCREW
H 2A,2B N83-2005-46 PAN HEAD TAPTITE SCREW
79 1C N99-2004-05 SCREW SET ACCESSORY
81 3A R31-0638-05 VARIABLE RESISTOR
83 3A S60-0408-15 ROTARY SWITCH
84 2B S72-0402-05 TOGGLE SWITCH
86 1A,1B T07-0349-05 SPEAKER
87 2B T91-0575-05 MIC ELEMENT
- W01-0441-05 FOR SERVICE KIT
D6-9 B30-2171-05 LED K2
D102,103 ✽B30-2231-05 LED
D104 B30-2019-05 LED
C1-5 CK73GB1H471K CHIP C 470PF K
C8 CK73FB1C474K CHIP C 0.47UF K
C12,13 CK73FB1C474K CHIP C 0.47UF K
C14 CK73FB1C104KTD CHIP C 0.10UF K
C15 CK73GB1H471K CHIP C 470PF K
C16 C92-0734-05 CHIP-TAN 100UF 10WV
C19 CK73FB1C474K CHIP C 0.47UF K
C22 CK73GB1H471K CHIP C 470PF K
C27-29 CK73GB1C104K CHIP C 0.10UF K
C30 CK73FB1C474K CHIP C 0.47UF K
C31 CK73GB1E223K CHIP C 0.022UF K
TK-5400 (Y50-5680-XX)
CONTROL UNIT (X53-4030-XX) -10 : K -11 : K2

TK-5400 PARTS LIST
18
Ref. No. Address Parts No. Description Ref. No. Address Parts No. Description
New Desti-
parts nation
New Desti-
parts nation
C32 CK73FB1C474K CHIP C 0.47UF K
C33,34 CK73GB1H471K CHIP C 470PF K
C35 CK73GB1H102K CHIP C 1000PF K
C37 CC73GCH1H101J CHIP C 100PF J
C38,39 CK73GB1H471K CHIP C 470PF K
C43 CK73GB1H471K CHIP C 470PF K
C45,46 CK73GB1H471K CHIP C 470PF K
C103 CK73GB1H102K CHIP C 1000PF K
C104,105 CC73GCH1H101J CHIP C 100PF J
C106 C92-0602-05 CHIP-TAN 1.0UF 10WV
CN1 E40-5947-05 FLAT CABLE CONNECTOR
CN3 E40-5948-05 FLAT CABLE CONNECTOR
CN4 E40-5662-05 PIN ASSY SOCKET
CN101 E40-5920-05 FLAT CABLE CONNECTOR
CN501 E04-0403-05 PIN SOCKET
L1-4 L92-0141-05 FERRITE CHIP
L6 L92-0149-05 FERRITE CHIP
L101 L92-0138-05 FERRITE CHIP
CP1 R90-0723-05 MULTI-COMP 47K X2
R1 RK73GB1J273J CHIP R 27K J 1/16W
R2 RK73GB1J102J CHIP R 1.0K J 1/16W
R3 RK73GB1J470J CHIP R 47 J 1/16W
R4,5 RK73GB1J473J CHIP R 47K J 1/16W
R6-8 R92-1252-05 CHIP R 0 OHM J 1/16W
R9,10 RK73GB1J102J CHIP R 1.0K J 1/16W
R11 R92-1252-05 CHIP R 0 OHM J 1/16W
R12 RK73GB1J102J CHIP R 1.0K J 1/16W
R13 RK73GB1J473J CHIP R 47K J 1/16W
R14 RK73GB1J104J CHIP R 100K J 1/16W
R15 RK73GB1J222J CHIP R 2.2K J 1/16W
R17,18 RK73GB1J473J CHIP R 47K J 1/16W
R19,20 RK73GB1J101J CHIP R 100 J 1/16W K2
R22,23 RK73GB1J102J CHIP R 1.0K J 1/16W
R26-28 RK73GB1J103J CHIP R 10K J 1/16W
R29,30 RK73GB1J223J CHIP R 22K J 1/16W
R31 R92-1252-05 CHIP R 0 OHM J 1/16W K2
R32 RK73GB1J680J CHIP R 68 J 1/16W
R33 RK73GB1J223J CHIP R 22K J 1/16W
R34 RK73GB1J182J CHIP R 1.8K J 1/16W
R35 RK73GB1J103J CHIP R 10K J 1/16W
R36 RK73GB1J182J CHIP R 1.8K J 1/16W
R37-42 RK73GB1J102J CHIP R 1.0K J 1/16W K2
R43,44 RK73GB1J473J CHIP R 47K J 1/16W
R45-49 RK73GB1J102J CHIP R 1.0K J 1/16W K
R45-55 RK73GB1J102J CHIP R 1.0K J 1/16W K2
R56 RK73GB1J153J CHIP R 15K J 1/16W
R57 R92-1252-05 CHIP R 0 OHM J 1/16W
R59 RK73GB1J102J CHIP R 1.0K J 1/16W
R60 R92-1252-05 CHIP R 0 OHM J 1/16W
R63,64 R92-1252-05 CHIP R 0 OHM J 1/16W
R66-68 R92-1252-05 CHIP R 0 OHM J 1/16W
R101 RK73GB1J104J CHIP R 100K J 1/16W
R102-104 RK73GB1J103J CHIP R 10K J 1/16W
R105 RK73GB1J471J CHIP R 470 J 1/16W
R106 RK73GB1J274J CHIP R 270K J 1/16W
R107 RK73GB1J472J CHIP R 4.7K J 1/16W
R108 RK73GB1J100J CHIP R 10 J 1/16W
R502 RK73GB1J102J CHIP R 1.0K J 1/16W
D2 DTZ3.9(B) ZENER DIODE
D2 UDZ3.9(B) ZENER DIODE
D11 IMN10 DIODE K2
D12,13 MA2S111 DIODE
D14 IMN10 DIODE K2
D15 MA2S111 DIODE
D16 IMN10 DIODE K
D16-18 IMN10 DIODE K2
D19,20 MA2S111 DIODE
D101 1SS373 DIODE
D105 NNCD6.8G ZENER DIODE
IC1 TDA7053AT BI-POLAR IC
IC2 BU4094BCFV MOS IC
IC3 NJM2904V MOS IC
IC4-6 TC7SH08FU MOS IC
IC7 BU4094BCFV MOS IC K2
IC10 TC7W04FU MOS IC
IC101 LC75824W MOS IC
Q5 2SC4617(S) TRANSISTOR
Q6 2SB798(DL,DK) TRANSISTOR
Q7,8 2SK1824 FET
Q14 UMC4N TRANSISTOR
Q15 2SK1824 FET
C1,2 CC73HCH1H101J CHIP C 100PF J
C3 CK73GB1C104K CHIP C 0.10UF K
C4 CC73HCH1H090D CHIP C 9.0PF D
C5 CC73HCH1H101J CHIP C 100PF J
C6 CC73HCH1H060D CHIP C 6.0PF D
C8 CC73HCH1H101J CHIP C 100PF J
C10 ✽C92-0793-05 CHIP-TAN 2.2UF 16WV
C12 CC73GCH1H101J CHIP C 100PF J
C13 CC73GCH1H040C CHIP C 4.0PF C
C14,15 CC73HCH1H040C CHIP C 4.0PF C
C16,17 CC73HCH1H101J CHIP C 100PF J
C18 CK73GB1C104K CHIP C 0.10UF K
C19,20 CC73HCH1H100D CHIP C 10PF D
C21 CC73HCH1H101J CHIP C 100PF J
C22,23 CC73GCH1H050C CHIP C 5.0PF C
C24,25 CC73FCH1H150J CHIP C 15PF J
C26 CC73HCH1H101J CHIP C 100PF J
C27 CK73GB1C104K CHIP C 0.10UF K
C28,29 CC73GCH1H080D CHIP C 8.0PF D
C30,31 CC73GCH1H101J CHIP C 100PF J
C32,33 CC73GCH1H2R5C CHIP C 2.5PF C
C34 CC73FCH1H040C CHIP C 4.0PF C
C35 CC73GCH1H101J CHIP C 100PF J
C101,102 CC73GCH1H101J CHIP C 100PF J
C103 C92-0784-05 CHIP-TAN 22UF 20WV
C104-108 CC73GCH1H101J CHIP C 100PF J
C109 CC73GCH1H040C CHIP C 4.0PF C
C110-112 CC73GCH1H101J CHIP C 100PF J
C113 CC73GCH1H030C CHIP C 3.0PF C
C114 CC73GCH1H101J CHIP C 100PF J
C117 CC73GCH1H101J CHIP C 100PF J
C118 CK73GB1C104K CHIP C 0.10UF K
C119 CC73GCH1H101J CHIP C 100PF J
C120 C92-0784-05 CHIP-TAN 4.7UF 10WV
CONTROL UNIT (X53-4030-XX)
TX-RX UNIT (X57-6530-10)
TX-RX UNIT (X57-6530-10)

TK-5400
PARTS LIST
19
C121 C92-0628-05 CHIP-TAN 10UF 10WV
C124 CC73GCH1H101J CHIP C 100PF J
C125 CK73FB1C474K CHIP C 0.47UF K
C126,127 CC73GCH1H101J CHIP C 100PF J
C128 CC73GCH1H040C CHIP C 4.0PF C
C129 CC73GCH1H030C CHIP C 3.0PF C
C130 CC73GCH1H101J CHIP C 100PF J
C131 CC73GCH1H1R5C CHIP C 1.5PF C
C132 CC73GCH1H2R5C CHIP C 2.5PF C
C133 CC73GCH1H010C CHIP C 1.0PF C
C134 C92-0784-05 CHIP-TAN 4.7UF 10WV
C135 CC73GCH1H040C CHIP C 4.0PF C
C200 CC73GCH1H080D CHIP C 8.0PF D
C201 CC73GCH1H101J CHIP C 100PF J
C202 CK73GB1H102K CHIP C 1000PF K
C204,205 CC73GCH1H100D CHIP C 10PF D
C207 CC73GCH1H101J CHIP C 100PF J
C208 CK73GB1C104K CHIP C 0.10UF K
C209 C92-0560-05 CHIP-TAN 10UF 6.3WV
C211 CK73GB1H102K CHIP C 1000PF K
C212-215 CC73GCH1H101J CHIP C 100PF J
C216 CC73GCH1H020C CHIP C 2.0PF C
C217 CC73GCH1H010C CHIP C 1.0PF C
C218 CC73GCH1H1R5C CHIP C 1.5PF C
C220 CC73GCH1H101J CHIP C 100PF J
C221 C92-0001-05 CHIP C 0.1UF 35WV
C222 CK73GB1E223K CHIP C 0.022UF K
C223 CC73GCH1H101J CHIP C 100PF J
C225,226 CC73GCH1H101J CHIP C 100PF J
C228,229 CC73GCH1H101J CHIP C 100PF J
C230 C92-0507-05 CHIP-TAN 4.7UF 6.3WV
C231 CC73GCH1H100D CHIP C 10PF D
C232 CC73GCH1H040C CHIP C 4.0PF C
C233 CC73GCH1H070D CHIP C 7.0PF D
C238,239 CC73GCH1H101J CHIP C 100PF J
C240 C92-0662-05 CHIP-TAN 15UF 6.3WV
C241 CC73GCH1H100D CHIP C 10PF D
C242 CC73GCH1H101J CHIP C 100PF J
C243 CC73GCH1H040C CHIP C 4.0PF C
C248 CC73GCH1H101J CHIP C 100PF J
C249 CK73GB1H102K CHIP C 1000PF K
C250-252 CC73GCH1H101J CHIP C 100PF J
C253 CC73GCH1H040C CHIP C 4.0PF C
C254 CC73GCH1H101J CHIP C 100PF J
C255 CC73GCH1H1R5C CHIP C 1.5PF C
C301,302 CC73GCH1H101J CHIP C 100PF J
C304 CC73GCH1H101J CHIP C 100PF J
C305 CK73GB1H102K CHIP C 1000PF K
C307 CC73GCH1H101J CHIP C 100PF J
C309 CC73GCH1H040C CHIP C 4.0PF C
C310-313 CC73GCH1H101J CHIP C 100PF J
C314 CC73GCH1HR75C CHIP C 0.75PF C
C315 CK73GB1H102K CHIP C 1000PF K
C318 CC73GCH1H020C CHIP C 2.0PF C
C327 CC73GCH1H151J CHIP C 150PF J
C328 CC73GCH1H101J CHIP C 100PF J
C330,331 CC73GCH1H101J CHIP C 100PF J
C332,333 CK73GB1C104K CHIP C 0.10UF K
C334 CC73GCH1H151J CHIP C 150PF J
C337 CK73GB1H102K CHIP C 1000PF K
Ref. No. Address Parts No. Description Ref. No. Address Parts No. Description
New Desti-
parts nation
New Desti-
parts nation
C338,339 CK73GB1E103K CHIP C 0.010UF K
C340 CC73GCH1H120J CHIP C 12PF J
C341 CC73GCH1H010C CHIP C 1.0PF C
C342 CK73GB1H102K CHIP C 1000PF K
C343 CK73GB1C104K CHIP C 0.10UF K
C344 CC73GCH1H030C CHIP C 3.0PF C
C345,346 CC73GCH1H220J CHIP C 22PF J
C347 CK73GB1C104K CHIP C 0.10UF K
C349,350 CK73GB1C104K CHIP C 0.10UF K
C351 CC73GCH1H030C CHIP C 3.0PF C
C353,354 CK73GB1E103K CHIP C 0.010UF K
C355 CC73GCH1H010C CHIP C 1.0PF C
C356 CK73GB1E103K CHIP C 0.010UF K
C357 CK73GB1C104K CHIP C 0.10UF K
C359 CK73GB1E223K CHIP C 0.022UF K
C360 CK73GB1C104K CHIP C 0.10UF K
C361 C92-0560-05 CHIP-TAN 10UF 6.3WV
C362,363 CK73GB1C104K CHIP C 0.10UF K
C401 ✽C92-0794-05 CHIP-TAN 22UF 20WV
C402 CK73GB1E103K CHIP C 0.010UF K
C403,404 CK73FB1C105K CHIP C 1.0UF K
C405 CC73GCH1H820J CHIP C 82PF J
C406 C92-1431-05 CHIP C 33UF 16WV
C407 CK73GB1C104K CHIP C 0.10UF K
C408 CK73FB1C105K CHIP C 1.0UF K
C411,412 CC73GCH1H101J CHIP C 100PF J
C413,414 CK73FB0J475K CHIP C 4.7UF K
C416 CC73GCH1H101J CHIP C 100PF J
C417 CK73FB0J475K CHIP C 4.7UF K
C500,501 CK73GB1E103K CHIP C 0.010UF K
C503 CK73GB1E103K CHIP C 0.010UF K
C504,505 CK73GB1C104K CHIP C 0.10UF K
C506 CK73GB1E103K CHIP C 0.010UF K
C509 CK73GB1C104K CHIP C 0.10UF K
C510 CC73GCH1H101J CHIP C 100PF J
C511-513 CK73GB1C104K CHIP C 0.10UF K
C604 C92-0560-05 CHIP-TAN 10UF 6.3WV
C605 CK73FB1A105K CHIP C 1.0UF K
C606 CC73GCH1H101J CHIP C 100PF J
C607 CK73FB1A105K CHIP C 1.0UF K
C609 CK73GB1H102K CHIP C 1000PF K
C610 CK73GB1H471K CHIP C 470PF K
C611 CK73GB1H122K CHIP C 1200PF K
C612 CK73GB1C104K CHIP C 0.10UF K
C613 CK73GB1E103K CHIP C 0.010UF K
C614 C92-0003-05 CHIP-TAN 0.47UF 25WV
C615,616 CC73GCH1H101J CHIP C 100PF J
C617 CC73GCH1H391J CHIP C 390PF J
C619 CC73GCH1H101J CHIP C 100PF J
C620 CK73GB1H562K CHIP C 5600PF K
C621 CK73GB1C104K CHIP C 0.10UF K
C623 C92-0560-05 CHIP-TAN 10UF 6.3WV
C624 CK73FB1A105K CHIP C 1.0UF K
C625,626 CK73GB1C104K CHIP C 0.10UF K
C628 C92-0713-05 CHIP-TAN 6.3UF 10WV
C629 CK73GB1H222K CHIP C 2200PF K
C630 CK73GB1C104K CHIP C 0.10UF K
C631 C92-0713-05 CHIP-TAN 6.3UF 10WV
C632 CK73GB1C104K CHIP C 0.10UF K
C633 CC73GCH1H331J CHIP C 330PF J
TX-RX UNIT (X57-6530-10)