Kenwood NX-420 K, NX-420 Series, NX-420 K3 Service Manual
800MHz DIGITAL TRANSCEIVER
NX-420
SERVICE MANUAL
© 2013-2 PRINTED IN JA PAN
B53-7050-00 (Y) 561
NX-420 K NX-420 K3
Whip antenna
(T90-1114-05)
Knob (Selector)
(K29-9486-13)
Knob (Volume)
(K29-9485-13)
Whip antenna
(T90-1114-05)
Knob (Selector)
(K29-9486-13)
Knob (Volume)
(K29-9485-13)
Knob (PTT)
(K29-9500-03)
Button knob
(Side1/Side2/AUX)
(K29-9501-03)
This product complies with the
Plastic cabinet assy
(A02-4130-13)
directive for the European market.
RoHS
Knob (PTT)
(K29-9500-03)
Button knob
(Side1/Side2/AUX)
(K29-9501-03)
Plastic cabinet assy
(A02-4132-13)
Packing (16Key)
(G53-1865-11)
This product uses Lead Free solder.
NX-420
CONTENTS
GENERAL ....................................................3
SYSTEM SET-UP .........................................4
REALIGNMENT ...........................................5
DISASSEMBLY FOR REPAIR .....................8
CIRCUIT DESCRIPTION ...........................12
COMPONENTS DESCRIPTION ................18
PARTS LIST ...............................................20
EXPLODED VIEW ......................................28
PACKING ...................................................29
TROUBLE SHOOTING ..............................30
ADJUSTMENT ...........................................33
TERMINAL FUNCTION .............................54
PC BOARD
DISPLAY UNIT (X54-3760-XX) ..............56
TX-RX UNIT (X57-8370-10) ....................60
LEVEL DIAGRAM .....................................64
INTERCONNECTION DIAGRAM ...............65
SCHEMATIC DIAGRAM ............................66
BLOCK DIAGRAM ....................................76
SPECIFICATIONS ......................................79
Document Copyrights
Copyright 2013 by JVC 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
JVC KENWOOD Corporation.
Disclaimer
While every precaution has been taken in the preparation
of this manual, JVC KENWOOD Corporation assumes no
responsibility for errors or omissions. Neither is any liability
assumed for damages resulting from the use of the information contained herein. JVC KENWOOD Corporation reserves
the right to make changes to any products herein at any time
for improvement purposes.
2
Firmware Copyrights
The title to and ownership of copyrights for firmware
embedded in KENWOOD product memories are reserved
for JVC KENWOOD Corporation. Any modifying, reverse
engineering, copy, reproducing or disclosing on an Internet
website of the firmware is strictly prohibited without prior
written consent of JVC KENWOOD Corporation. Furthermore, any reselling, assigning or transferring of the fi rmware
is also strictly prohibited without embedding the fi rmware in
KENWOOD product memories.
Transceivers containing AMBE+2™ Vocoder:
The AMBE+2™ voice coding technology is embedded in
the fi rmware under the license of Digital Voice Systems, Inc.
GENERAL
NX-420
INTRODUCTION
SCOPE OF THIS MANUAL
This manual is intended for use by experienced technicians familiar with similar types of commercial grade communications equipment. It contains all required service information for the equipment and is current as of the publication
date. Changes which may occur after publication are covered by either Service Bulletins or Manual Revisions. These
are issued as required.
ORDERING REPLACEMENT PARTS
When ordering replacement parts or equipment information, the full part identifi cation 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 suffi cient description of the required component for proper identifi cation.
Model & Destination
(Market code)
NX-420
K-
K3
Display unit X54-376X-XX
0-10 0-12
-
TX-RX unit
X57-8370-10
PERSONAL SAFETY
The following precautions are recommended for personal
safety:
• DO NOT transmit until all RF connectors are verifi ed secure and any open connectors are properly terminated.
• SHUT OFF and DO NOT operate this equipment near
electrical blasting caps or in an explosive atmosphere.
• This equipment should be serviced by a qualifi ed technician only.
SERVICE
This transceiver is designed for easy servicing. Refer to
the schematic diagrams, printed circuit board views, and
alignment procedures contained within.
Frequency
range
TX:806~825MHz
RX/TX:851~870MHz
Remarks LCD+16key
–
1st IF: 49.95MHz
LOC: 50.4MHz
3
NX-420
Merchandise received
SYSTEM SET-UP
Choose the type of transceiver
Transceiver programming
Are you using the speaker microphone?
NO
Delivery
Type
NX-420 K
NX-420 K3
A personal computer, programming interface (KPG-22A/22U) are
required for programming.
(The frequency, and signaling data are programmed for the transceiver.)
YES
KMC-21/KMC-45
Speaker microphone
KMC-48GPS
GPS speaker microphone
Frequency range (MHz) RF power LCD 16-key
TX 806~825MHz
TX/RX 851~870MHz
TX 806~825MHz
TX/RX 851~870MHz
or
(Option)
3W
3W
No
YesNoYes
4
REALIGNMENT
NX-420
1. Modes
User mode
Panel test mode *1
PC mode
Firmware
programming mode
Clone mode *1
Firmware version information *1
Mode Function
User mode For normal use.
Panel test mode
Panel tuning mode
PC mode
Data programming
mode
PC test mode
Firmware program-
ming mode
Clone mode
Firmware version
information
1
1 Used by the dealer to tune the transceiver.
1
1
Panel tuning mode *1
Data programming mode
PC test mode
Used by the dealer to check the fundamental characteristics.
Used for communication between the
transceiver and PC.
Used to read and write frequency data and
other features to and from the transceiver.
Used to check the transceiver using the PC.
This feature is included in the FPU.
Used when changing the main program of
the fl ash memory.
Used to transfer programming data from
one transceiver to another.
Used to confi rm the internal fi rmware version.
PC tuning mode
1: K3 model only
2. How to Enter Each Mode
Mode Operation
User mode Power ON
Panel test mode
PC mode Received commands from PC
Panel tuning mode
Firmware programming mode [Side1] + Power ON
Clone mode
Firmware version information
2[] + Power ON
2 [Panel test mode] + [ ]
2[] + Power ON
2[] + Power ON
2: K3 model only
3. Panel Test Mode
(K3 model only)
Setting method refer to ADJUSTMENT.
5. PC Mode
5-1. Preface
The transceiver is programmed by using a personal com-
puter, programming interface (KPG-22A/22U) and programming software (KPG-141D).
The programming software can be used with a PC. Fig-
ure 1 shows the setup of a PC for programming.
PC
FPU
Tuning cable
(E30-3216-05)
PC
D-SUB
(9-pin)
KPG-22A
Transceiver Transceiver
Fig. 1
5-2. Connection procedure
1. Connect the transceiver to the computer using the interface cable.
Note:
• You must install the KPG-22U driver in the computer to
use the USB programming interface cable (KPG-22U).
KPG-22A or KPG-22U
Gray
Gray/Black
1.5D-XV Lead wire
1.5D-XV Shield wire
PC
USB
KPG-22U
+
SP
–
+
MIC
–
4. Panel Tuning Mode
(K3 model only)
Setting method refer to ADJUSTMENT.
5
NX-420
REALIGNMENT
2. When the POWER is switched on, you can immediately
enter user mode. When the PC sends a command, the
transceiver enters PC mode, and “PROGRAM” is displayed on the LCD.
When data is transmitting from the transceiver, the red
LED lights.
When data is receiving by the transceiver, the green LED
lights.
Note:
The data stored in the computer must match the “Model
Name” when it is written into the fl ash memory.
5-3. KPG-22A description
(PC programming interface cable: Option)
The KPG-22A is required to interface the transceiver to
the computer. It has a circuit in its D-sub connector case that
converts the RS-232C logic level to the TTL level.
The KPG-22A connects the SP/MIC connector of the
transceiver to the RS-232C serial port of the computer.
5-4. KPG-22U description
(USB programming interface cable: Option)
The KPG-22U is a cable which connects to a USB port on
a computer.
When using the KPG-22U, install the supplied CD-ROM
(with driver software) in the computer. The KPG-22U driver
runs under Windows XP, Vista or 7.
The latest version of the USB driver is available for down-
load from the following URL:
http://www.kenwood.com/usb-com/
(This URL may change without notice.)
6-3. Programming
1. Start up the firmware programming software (Fpro.exe
(ver. 6.10 or later)). The Fpro.exe exists in the KPG-141D
installed holder.
2. Set the communications speed (normally, 115200 bps)
and communications port in the confi guration item.
3. Set the fi rmware to be updated by File name item.
4. Press and hold the [Side1] key while turning the transceiver power ON. Then, the orange LED on the transceiver
lights and “FIRM PRG” is displayed.
5. Check the connection between the transceiver and the
personal computer, and make sure that the transceiver is
in the Program mode.
6. Press “write” button in the window. When the transceiver
starts to receive data, the [LOADING] display lights.
7. If writing ends successfully, the checksum is calculated
and a result is displayed.
8. If you want to continue programming other transceivers,
repeat steps 4 to 7.
6-4. Function
If you press the [Side1] key while “FIRM PRG” is dis-
played, the checksum is calculated, and a result is displayed.
If you press the [Side1] key again while the checksum is displayed, “FIRM PRG” is redisplayed.
Note:
• This mode cannot be entered if the Firmware Programming mode is set to Disable in the Programming software.
• Normally, write in the high-speed mode.
• The text message are displayed for K3 model only.
5-5. Programming softwares KPG-141D (ver.3.10
or later) description
The KPG-141D is the programming software for the transceiver supplied on a CD-ROM. This software runs under
Windows XP, Vista or 7 on a PC.
The data can be input to or read from the transceiver and
edited on the screen. The programmed or edited data can be
printed out. It is also possible to tune the transceiver.
6. Firmware Programming Mode
6-1. Preface
Flash memory is mounted on the transceiver. This allows
the transceiver to be upgraded when new features are released in the future. (For details on how to obtain the fi rmware, contact Customer Service.)
6-2. Connection procedure
Connect the transceiver to the personal computer using
the interface cable (KPG-22A/22U) and USB adapter (KCT53U: when the interface cable is KPG-22A, the KCT-53U can
be used.). (Connection is the same as in the PC Mode.)
7. Clone Mode (K3 model only)
Programming data can be transferred from one transceiver to another by connecting them via their external SP/MIC
connectors. The operation is as follows (the transmit transceiver is the source and the receive transceiver is a target).
The following data cannot be cloned.
• Tuning data
• Embedded message with password
• Model name data
• ESN (Electronic Serial Number) data
Note:
The following data can be cloned.
• Fleet (own)/ID (own) for FleetSync
• Unit ID (own) for NXDN
• ID (own) for MDC-1200
1. Press and hold the [
power ON. If the Read authorization password is set to
the transceiver, the transceiver displays “CLN LOCK”. If
the password is not set, the transceiver displays “CLONE”.
] key while turning the transceiver
6
REALIGNMENT
NX-420
2. When you enter the correct password, and “CLONE” is
displayed, the transceiver can be used as the cloning
source. The following describes how to enter the password.
3.
• How to enter the password using the keypad (K3
model only);
If one of keys 0 to 9 is pressed while the “CLN LOCK” is
displayed, the pressed number is displayed on the LCD.
Each press of the key shifts the display in order to the left.
When you enter the password and press the [
“CLONE” is displayed if the entered password is correct. If
the password is incorrect, “CLN LOCK” is redisplayed.
• How to enter the password using the Selector (K3
model only);
If the Selector is rotated while “CLN LOCK” is displayed,
the Read authorization password input screen is displayed.
If the Selector is rotated while the Read authorization
password input screen is displayed, the number (0 to 9)
blinks on the LCD. When you press the [
rently selected number is determined. If you press the [
key after entering the password in this procedure , “CLONE”
is displayed if the entered password is correct. If the password is incorrect, “CLN LOCK” is redisplayed.
4. Power ON the target transceiver.
5. Connect the cloning cable (part No. E30-3410-05) to the
SP/MIC connectors on the source and target.
6. Press the [
“CLONE”. The data of the source is sent to the target.
While the target is receiving the data, “PROGRAM” is
displayed. When cloning of data is completed, the source
displays “END”, and the target automatically operates in
the User mode. The target can then be operated by the
same program as the source.
] key on the source while the source displays
] or [ ] key,
] key, the cur-
7. The other target can be continuously cloned. When the
[
] key on the source is pressed while the source displays
“END”, the source displays “CLONE”. Carry out the operation in step 4 to 6.
Note:
• Cannot be cloned if the password (overwrite password) is
programmed to the target.
• “Model Name” must be same to clone the transceiver.
Cloning cable
(E30-3410-05)
]
Fig. 2
8. Firmware Version Information
(K3 model only)
Press and hold the [ ] key while turning the transceiver
power ON and then keep pressing and holding the [
the fi rmware version information appears on the LCD.
] key,
7
NX-420
DISASSEMBLY FOR REPAIR
1. Precautions for Disassembly
Removing the selector knob and volume knob
■
1. Using a thin tool, insert it in the hole on the selector knob
side and push the knob spring.
Note: When you push the knob spring, take care not to
damage the resin of the knob.
2. Lift and remove the selector knob b while pushing the
knob spring.
3. Repeat steps 1 and 2 for the volume knob, to remove the
volume knob c.
a
@
.
Removing the mechanical stopper (K3 model only)
1. Pick up and lift the tab of a mechanical stopper using a
pair of tweezers.
Note: Take care not to damage the packing.
2. Remove the mechanical stopper b.
a
@
:
:
Note:
Perform the following procedures when installing the selector knob and volume knob.
1) Match the direction for the hole of the knob and the knob
spring.
2) Push the knob onto the knob spring until a click sounds.
Removing the selector knob spring and volume
knob spring
1. Lightly grasp the left and right sides of the selector knob
spring, then shift the knob spring to the left and right, little
by little, as shown in the fi gure.
Note: Do not grasp the knob spring tightly.
2. Remove the selector knob spring b.
Note: Do not bring your fi ngers into contact with the fl at
spring of the knob spring as much as possible.
3. Repeat steps 1 and 2 for the volume knob spring, to remove the volume knob spring c.
Knob spring
a
@
.
:
Removing the TX-RX unit from the chassis
1. Remove the fl at cable from the connector (CN600).
2.
Remove the Speaker lead wire from the connector (CN902).
3. Remove the PTT FPC from the connector (CN604).
4.
Remove the VOL/SEL FPC from the connector (CN500).
PTT FPC
b
Flat cable
a
5. Remove the packing e from the SP/MIC jack.
6. Remove the 14 screws f.
7. Anchor the screw hole of the TX-RX unit using the tip of
a pair of tweezers as shown in the fi gure. Then lift the TXRX unit to remove it from the chassis.
g
CN902
c
CN604
CN600
TX-RX unit
d
CN500
g
a
b
c
d
Encoder
Note:
Perform the following procedures when installing the selector knob spring and volume knob spring.
1) Match the direction for the knob spring and the encoder.
2) Insert the encoder onto the knob spring until a click
sounds.
8
f
f
f
f
f
e
DISASSEMBLY FOR REPAIR
NX-420
Removing the speaker holder
There is a space of approximately 1mm (0.04 inch) be-
tween the center part of the front glass of the speaker
holder and the surface of the Display unit. Set your fi nger
on the space in the center part of the front glass, then lift
and remove it.
Speaker holder
Display unit
Removing the TOP packing
1. Pull the TOP packing to the left to remove the packing that
is fi t into the left groove of the chassis.
2. Pull the TOP packing to the right to remove the packing
that is fi t into the right groove of the chassis.
3. Pull the TOP packing to the center to remove the packing
that is fi t into the center groove of the chassis.
4. Remove the TOP packing.
Note:
Remove the packing slowly, as the packing of the selector
part might overset when the TOP packing is removed. If
the packing is turned over, return it to the normal position
using a soft tipped item (e.g., your fi nger).
d
a
b
c
2. Precautions for Reassembly
Mounting the chassis onto the case
1. Place the key top on the chassis. Then, fit the chassis
tightly into the groove of the key top.
Note:
Confirm that the entire groove of the key top fits to the
chassis tightly.
2. Mount the chassis onto the case.
Note:
• After mounting the chassis onto the case, if the 16-key
part on the key top gets stuck inside the case as shown
in the fi gure, return it to the normal position using a soft
tipped item (e.g., your fi nger).
Prying it with a pointed metal tool such as forceps, may
damage the key top or packing.
• Confi rm that the TOP packing is not caught in the An-
tenna or Volume holes of the case.
@
:
a
b
c
16-key part
.
;
Volume of TOP packing
@
.
:
Forming the fl at cable
■
Form the right and left end of the fl at cable as shown in
the fi gure. (Bend the terminal surface of the fl at cable on
the inside.)
Note: When bending the fl at cable, bend it squarely. There
is a possibility of disconnecting when the fl at cable is bent
too much.
Flat cable
Antenna of TOP packing
9
NX-420
DISASSEMBLY FOR REPAIR
Changing the channel selector from 16-channel
■
operation to free (without LCD models only)
1. Remove the channel selector knob a. (Refer to page 8
for how to remove the channel selector knob.)
2. Remove the knob spring b. (Refer to page 8 for how to
remove the knob spring.)
3. Remove the mechanical stopper c. (Refer to page 8 for
how to remove the mechanical stopper.)
4. Reassemble the channel selector knob and knob spring
that were removed in steps 1 and 2, in their original positions.
Note: Refer to page 8 for how to install the channel selec-
tor knob and knob spring.
:
@
.
Note: Refer to page 8 for how to install the channel selec-
tor knob and knob spring.
:
@
Connection place of the antenna hot pin and
■
.
antenna terminal
An antenna hot pin is connected with the antenna termi-
nal at the position shown in the fi gure.
Confi rm that the antenna hot pin has fi rmly come in con-
tact with the terminal when the TX-RX unit is tightened
with the screw.
Additionally, refer to the following fi gures for the connec-
tion place of the antenna terminal and the TX-RX unit.
Changing the channel selector from free opera-
■
tion to 16-channel (with LCD models only)
1. Remove the channel selector knob a. (Refer to page 8
for how to remove the channel selector knob.)
2. Remove the knob spring b. (Refer to page 8 for how to
remove the knob spring.)
3. Pinch the supplied mechanical stopper c using your fi ngers, then install it into the groove of the selector part on
the case.
4. Reassemble the channel selector knob and knob spring
that were removed in steps 1 and 2, in their original positions.
TX-RX unit
Antenna
hot pin
Align the SP/MIC lead wire
■
Align the SP/MIC lead wire as shown in the fi gure. It is
possible to fix temporarily by interweaving the two lead
wires between the tabs (tab A and tab B) and boss of the
speaker holder.
Antenna
terminal
Antenna
terminal
B
A
10
NX-420
DISASSEMBLY FOR REPAIR
Assembly information (Sheet/Cushion)
■
When “Main Parts” is changed (ordered), “Assembled Sheet/Cushion” should also be changed (ordered) together.
The Sticker and Sheet etc are non-reusable parts. It requires the new one to get the radio’s performance after repairs.
For example, when “Plastic Cabinet Assy (A02-4130-13 (without key)/A02-4132-13 (16-key))” is changed, “Sticker (B42-7417-
04)” and “Fibrous Sheet (G10-1827-04)” should be ordered and changed together because Sticker (B42-7417-04) and Fibrous
Sheet (G10-1827-04) are non-reusable.
Main Parts Assembled Sheet/ Cushion
Part Name Part Number Part Name Part Number Remark
Plastic Cabinet Assy
Speaker T07-0787-05
Chassis A10-4148-01
MIC Element T91-0673-05 Sheet (ECM) G11-4558-04
(without key) A02-4130-13 Sticker B42-7417-04 “NEXEDGE” is printed.
(16-key) A02-4132-13 Fibrous sheet G10-1827-04
Rubber Cushion (SP) G11-4272-14
Sheet (SP) G11-4527-04
Sheet (PTT) G11-4543-04
Rubber Sheet (FET) G11-4315-14
Sheet (Air) G11-4500-04
Used for stabilizing the radiation performance
of the FET.
This sheet is put on the air vent hole.
This sheet lets air through, but does not let
water through.
11
NX-420
CIRCUIT DESCRIPTION
1. Overview
The NX-420 is a 800MHz portable transceiver designed to
operate in the frequency range of 806 to 870MHz. The unit
consists of a receiver, transmitter, phase-locked loop (PLL)
frequency synthesizer, baseband parts, power supply, and
control circuits.
ANT
ANT
SW
POWER
AMP
TX:806~825MHz
851~870MHz
TX:806~825MHz
TX/RX:851~870MHz
RF
AMP
RX 1stLo:
801.05~820.05MHz
TX
AMP
TX/RX
1st
MIX
SW
MCF
49.95MHz
16.8MHz
TCXO
2. Frequency Confi guration
The receiver is a double-conversion superheterodyne using the fi rst intermediate frequency (IF) of 49.95MHz and the
second IF of 450kHz. Incoming signals from the antenna are
mixed with the local signal from the PLL circuit to produce
the fi rst IF of 49.95MHz. This is then mixed with the 50.4MHz
second local oscillator output to produce the 450kHz second
IF. The transmit signal frequency is generated by the PLL
VCO, and modulated by the signal from the DSP. It is then
amplifi ed and fed to the antenna.
CF 450kHz
SP
IF SYSTEM
X3
50.4MHz
PLL/VCO
AF
AMP
Base band Circuit
MIC
AMP
MIC
Fig. 1 Frequency confi guration
3. Receiver System
3-1. RF circuit
An incoming RF signal from the antenna terminal is
passed through the antenna switch (D102, D103, D104 and
D105) and then the band-pass filter (L217). The signal is
amplifi ed by an RF amplifi er (Q200), and passed through the
ANT
L118
D102,D103
D104,D105
ANT
SW
L217
Q200
RF AMP
IC 607 IC602
ASIC
DSP
IC 601
L212
BPF
band-pass fi lter (L212). The resulting signal is applied to the
fi rst mixer (IC200), where it is mixed with the fi rst local oscillator signal output from the frequency synthesizer to produce
the fi rst IF (49.95MHz).
IC200
1st MIX
1st Lo
IC 4
VOL
XF300
MCF
X400
TCXO
16.8MHz
Q301
IF AMP
IC 901
Q300
x3
IC301
MIX,AGC
2nd OSC
SP
CF301
BPF
CF300
12
Fig. 2 RF and IF circuit
CIRCUIT DESCRIPTION
NX-420
3-2. IF circuit
The first IF signal is passed through a four-pole monolithic crystal fi lter (XF300) to reject adjacent channel signals.
The fi ltered fi rst IF signal is amplifi ed by the fi rst IF amplifi er
(Q301) and then applied to the IF system IC (IC301). The
IF system IC provides a second mixer, AGC amplifi er, and
RSSI (Received Signal Strength Indicator).
The second mixer mixes the first IF signal with the
50.4MHz of the second local oscillator output and produces
the second IF signal of 450kHz.
The second IF signal is passed through the ceramic fi lter
(CF300) to reject the adjacent channel signal. The fi ltered
second IF signal is amplifi ed by the AGC amplifi er in IC301.
The signal from the AGC amplifier is input to the ASIC
(IC607) through the ceramic fi lter (CF301).
DET
IC607
ASQAPC
ASQDET
IC1(1/2)
LPF
IC1(2/2)
Fig. 3 Squelch circuit
HPF
3-3. Audio amplifi er circuit
Audio processing (high-pass filter, low-pass filter, deemphasized and so on) at FM mode and decoding at NXDN
mode are processed by the DSP. The audio signal from
IC607 and IC601 goes through the amplifier (IC602). The
signal then goes through an electronic volume control (IC4),
and AF amplifi er (IC901).
While AFSW is High, the power supply of audio power
amplifi er (IC901) is activated, and the output to the speaker
turns ON.
3-4. Squelch circuit
It amplifi es the demodulated noise signal from IC607 after
fi ltering through the LPF and HPF circuit. The amplifi ed signal is then converted to a DC signal by the detection circuit.
The converted signal is fed back to IC607.
Q3
AMP
D2
RECT
ASQ
IC302
AMP
4. T ransmitter System
4-1. Audio band circuit
The signal from the microphone is amplifi ed by IC2 (2/2)
and limited by the AGC circuit which is composed of D3, D4,
Q4 and Q5. IC2 works as an anti-aliasing LPF fi lter.
4-2. Baseband circuit
The audio signal output from the baseband circuit is converted to digital data with a sampling frequency of 48kHz.
This digital data is sent to the DSP (IC601), and voice signals of 300Hz or lower and frequencies of 3kHz or higher
IC2(2/2)MIC
MIC
AMP
AGC
D3,D4
Q4,Q5
Fig. 4 Audio band and Baseband circuit
IC601
DSP
IC607
ASIC
are cut off and the audio range of 300Hz to 3kHz is extracted. The audio signal is then pre-emphasized in FM mode
and synthesized with the signals, such as QT and DQT, as
required, and is then output from IC607. In Digital mode, the
audio signal is converted to the 4-Level FSK baseband signal and output from IC607. The DTMF and MSK baseband
signals are also generated by the DSP and output by IC607
The LPF (IC6) works as a smoothing fi lter. The level output according to the transmit carrier is fi ne-adjusted according to each modulation method.
IC400
PLL IC
IC6(1/2)
LPF
VCO
To TX
stage
13
NX-420
CIRCUIT DESCRIPTION
4-3. V OX
The DSP detects the audio level. If the detected level be-
comes higher than the threshold level, the VOX starts.
4-4. Drive and Final amplifi er
The signal from the T/R switch (D412 is on) is amplifi ed
by the pre-drive amplifier (Q102) to 9~10dBm. The output
of the pre-drive amplifi er is amplifi ed by the drive and fi nal
amplifi ers (Q104, Q106) to 3.0W (1.0W when the power is
low). Q104 and Q106 are MOS FETs. The output of the fi nal
amplifier is then passed through the harmonic filter (LPF)
and antenna switch (D102, D103 are on) and applied to the
antenna terminal.
Q102 Q104
Pre-Drive
AMP
R132
R133
T/R SW (D412)
from
Reference voltage
Q101
RFAMP
VCC from
DC SW(Q504)
+B
from IC607
4-5. APC circuit
The APC circuit always monitors the current flowing
through the RF power amplifier (Q106) and keeps a constant current. The voltage drop at R132 and R133 is caused
by the current fl owing through the RF power amplifi er and
this voltage is applied to the differential amplifier (IC100
1/2). IC100 (2/2) compares the output voltage of IC100 (1/2)
with the reference voltage from IC607, and the output of
IC100 (2/2) controls the VGG of Q104 and Q100 to make
the both current constant. The change of power high/low is
carried out by the change of the reference voltage. IC106,
Q107,Q108 and Q108 are turned on and Q103 and Q105
are turned off during transmission and the APC circuit is active.
ANT
Q106
D102,D103
Drive
AMP
IC100
(1/2)
Final
AMP
ANT
SW
VGG
IC100
(2/2)
LPF
Fig. 5 Drive and fi nal amplifi er and APC circuit
5. PLL Frequency Synthesizer
5-1. TCXO (X400)
TCXO (X400) generates a reference frequency of
16.8MHz for the PLL frequency synthesizer. This reference
frequency is applied to pin 9 of the PLL IC (IC400) and is
connected to the IF circuit as a 2nd osc through the Tripler
(Q300). The frequency adjustment is achieved by switching
the ratio of dividing frequency. The resolution of the adjusting
frequency is approximately 4Hz.
5-2. VCO
There are two VCOs (VCO-1 and VCO-2).
VCO-1 (Q401) generates the 1st local signal for the re-
ceiver and a carrier for the transmitter.
VCO-2 (Q402) generates a carrier for the transmitter of TA
(Talk Around).
The oscillation frequency of the VCO is half of the carrier
or 1st local signal. The VCO oscillates from 403 to 435MHz
during transmit, and from 400.525 to 410.025MHz during
reception.
The VCO oscillation frequency is determined by one system of operation switching terminal “/T_R” and two systems
of voltage control terminals “CV” and “ASSIST”.
The operation switching terminal, “/T_R”, is controlled by
the control line (/T_R) output from the ASIC (IC607).
When the /T_R logic is low, VCO-2 is activated, and when
the /T_R logic is high, VCO-1 is activated.
The voltage control terminals, “CV” and “ASSIST”, are
controlled by the PLL IC (IC400) and ASIC (IC607) and the
output frequency changes continuously according to the
applied voltage. For the modulation input terminal, “VCO_
MOD”, the output frequency changes according to the applied voltage. This is used to modulate the VCO output.
5-3. PLL IC (IC400)
The PLL IC compares the differences in phases of the
VCO oscillation frequency and the TCXO reference frequency, returns the difference to the VCO CV terminal and
realizes the “Phase Locked Loop” for the return control. This
allows the VCO oscillation frequency to accurately match
(lock) the desired frequency.
14
CIRCUIT DESCRIPTION
NX-420
When the frequency is controlled by the PLL, the frequency convergence time increases as the frequency difference
increases when the set frequency is changed. To supplement this, the ASIC is used before control by the PLL IC
to bring the VCO oscillation frequency close to the desired
frequency. As a result, the VCO CV voltage does not change
and is always stable at approximately 2.5V.
The desired frequency is set for the PLL IC by the ASIC
(IC607) through the 3-line “SDO1”, “PCK_RF”, “/PCS_RF”
serial bus. Whether the PLL IC is locked or not is monitored
by the ASIC through the “PLD” signal line. If the VCO is not
the desired frequency (unlock), the “PLD” logic is low.
“PLLMOD” receives the modulation data from the DSP
(IC601).
50C
ASIC
CV
SD01,/PCS_RF
PCK_RF,PLD
IC601
Q403
Ripple
filter
IC401
BUF
IC402
BUF
/T_R
Q404
Q406
PLL IC
Q401,Q402
VCO 1
VCO 2
VCO_MOD
X400
5-4. Local Switch (D411, D412)
The connection destination of the signal output from the
buffer amplifier (Q408) is changed with the diode switch
(D412) that is controlled by the transmission power supply,
50T, and the diode switch (D411) that is controlled by the
receive power supply, 50R. If the 50T logic is high, it is connected to a send-side RF amplifi er (Q101). If the 50T logic is
low, it is connected to a receive-side mixer (IC200).
D411,D412
TX/RX
SW
IC6
X2
BUF
Q405
IC607
ASIC
BUF
Q407
Q408
BUF
DSP
PLL MOD
TCXO
Fig. 6 PLL block diagram
6. Control Circuit
The control circuit consists of CPU in ASIC (IC607) and
its peripheral circuits. CPU mainly performs the following;
1) Switching between transmission and reception by PTT
signal input.
2) Reading system, zone, 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 decode data input.
6-1. ASIC
The ASIC (IC607) is a 32-bit RISC processor, equipped
with peripheral function and ADC/DAC.
This ASIC operates at 18.432MHz clock and 3.3V/1.5V
DC. It controls the fl ash memory, SRAM, DSP, the receive
circuit, the transmitter circuit, the control circuit, and the display circuit and transfers data to or from an external device.
6-2. Memory Circuit
The memory circuit consists of the ASIC (IC607), the
SRAM (IC603), and the flash memory (IC600). The flash
memory has a capacity of 32M-bit that contains the transceiver control program for the ASIC and stores the data. It
also stores the data for transceiver channels and operating
parameters that are written by the FPU. This program can
be easily written from external devices. The SRAM has a capacity of 1M-bit that contains work area and data area.
Flash memory
Note :
• The fl ash memor y stores the data that is written by the
FPU (KPG-141D), tuning data (Deviation, Squelch, etc.)
,and firmware program (User mode, Test mode, Tuning
mode, etc.). This data must be rewritten when replacing
the fl ash memory.
SRAM (Static memory)
Note :
• The SRAM has temporary data area and work area.
15
NX-420
CIRCUIT DESCRIPTION
6-3. LCD
The LCD is controlled using the 4 serial line from ASIC
(IC607).
6-4. Key Detection Circuit (K3 model only)
Keys are detected using the LCD controller driver IC (IC8).
If a pressed key is detected by IC8, it is informed to IC607
through the serial line.
6-5. Low Battery Warning
The battery voltage is divided using R500 and R502 and
is detected by the ASIC (IC607). 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 battery. If the battery voltage falls even
more (approx. 5.8V), a beep sounds and transmission stops.
Low battery warning Battery condition
The red LED blinks during
transmission.
The red LED blinks and the
warning tone beeps while the
PTT switch is pressed.
The battery voltage is low but
the transceiver is still usable.
The battery voltage is low and
the transceiver is not usable to
make calls.
6-6. DSP
The DSP circuit consists of a DSP (IC601) and processes
the baseband signal. The DSP operates on an external clock
of 18.432MHz (the same as the IC607), the I/O section operates at 3.3V and the core section operates at 1.5V.
The DSP carries out the following processes:
• 4 Level FSK processing
• Analog FM pre-emphasis/de-emphasis
• Vocoder processing between audio codec and modulation/
demodulation
• CAI processing, such as error correction encoding
• QT/DQT encoding/decoding
• LTR encoding/decoding
• DTMF encoding/decoding
• MSK encoding/decoding
• Compressor/expander processing
• Voice scrambler processing
• Transmit/receive audio fi ltering processing
• Microphone amplifi er AGC processing
• Audio mute processing
• Modulation level processing
7. Power Supply Circuit
The battery voltage (+B) is provided from the battery terminal on the TX-RX unit (X57). The battery voltage passes
through the 2.5A fuse (F500), and goes to the RF fi nal amplifi er, AVR ICs (IC504, IC900), DC/DC converter (IC505),
and voltage detector IC (IC506). The voltage detector
watches the battery voltage. If the battery voltage is 5.6V or
higher, the detector outputs High.
When the VOL SW is turned on, SB1 becomes high (battery voltage). DC/DC (IC505) operates if both SB1 and the
output of the detector are high. IC505 outputs 3.8V and activates IC501 (33M), IC502 (15M), IC500 (33A) and IC503
(33C). As a result, ASIC and DSP operate.
The SBC signal becomes High after the ASIC operates,
IC504 (50C), IC900 (50V) and Q500 (SB2) are turned on.
When the /SAVE signal becomes High, Q503 (50C) operates. Switches (Q504, Q505) are controlled by the ASIC.
Q504 (50T) is turned on in transmit mode. Q505 (50R) is
turned on in receive mode.
When the VOL SW is turned off, the /PSW signal becomes
Low. After detecting the /PSW signal, the ASIC changes
the SBC signal to Low.
8. Signaling Circuit
8-1. Encode (QT/DQT/LTR/DTMF/MSK)
Each signaling data signal of QT, DQT, LTR, DTMF and
MSK is generated by the DSP circuit, superimposed on a
modulation signal and output from IC607.
Each deviation of the TX QT, DQT, LTR, DTMF and MSK
tone is adjusted by changing the output level of IC601 and
the resulting signal is routed to the VCO and PLL.
8-2. Decode (QT/DQT/LTR/DTMF/MSK)
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 expander.
The compander reduces noise by utilizing a compressor
and an expander. The transceiver contains a DSP (IC601) to
perform this operation. The transceiver compander can be
turned on or off using the FPU.
16
TX-RX unit
+B
F500
2.5A
CIRCUIT DESCRIPTION
F900
1.0A
Q902
SW
NX-420
Final AMP, APC
AFPA
VOL/SW
IC505
38M
IC504
50C
IC900
50V
IC506
5.6V Det
IC500
33A
IC501
33M
IC502
15M
IC503
33C
Q504
50T
Q505
50R
2-pin Jack
/PSW
/BINT
ASIC
IC607
DSP, FLASH, SRAM
DSP
PLL, TCXO
ASSIST circuit
TX circuit
RX circuit
CN600
Display unit
CN5
Q500
SB2
Q503
50CS
Ripple
filter
Fig. 7 Power supply circuit
PLL, fin
VCO
AF circuit
AF circuit, DAC
IC8
LCD driver
SQL circuit
LED
17
NX-420
COMPONENTS DESCRIPTION
Display unit (X54-3760-12) K type
Ref. No. Part Name Description
IC1 IC ASQ BPF/ASQ BPF
IC2 IC OP AMP(AF LPF/MIC AMP)
IC4 IC D/A converter
IC6 IC OP AMP(VCO_MOD/VREF)
IC8 IC LCD driver
Q1 Transistor TX/BUSY LED switch
Q2 FET SQL switch
Q3 Transistor SQL noise amplifi er
Q4,5 Transistor MIC AGC
Q6~8 Transistor KEY backlight sw
D1 LED TX/BUSY LED
D2 Diode Noise detector
D3,4 Diode AGC detector
Display unit (X54-3760-10) K3 type
Ref. No. Part Name Description
IC1 IC ASQ BPF/ASQ BPF
IC2 IC OP AMP(AF LPF/MIC AMP)
IC4 IC D/A converter
IC6 IC OP AMP(VCO_MOD/VREF)
IC8 IC LCD driver
Q1 Transistor TX/BUSY LED switch
Q2 FET SQL switch
Q3 Transistor SQL noise amplifi er
Q4,5 Transistor MIC AGC
Q6~8 Transistor KEY backlight sw
D1 LED TX/BUSY LED
D2 Diode Noise detector
D3,4 Diode AGC detector
D7~14 LED KEY backlight
D15,16 Diode KEY control
D18,19 LED LCD backlight
TX-RX unit (X57-8370-10)
Ref No. Part Name Description
IC100 IC APC control
IC200 IC 1st mixer
IC300 IC Buffer amplifi re (DET)
IC301 IC FM system
IC302 IC DC amplifi re (ASQ/RSSI)
IC400 IC PLL system
IC401 IC DC amplifi re (Assist)
IC402 IC DC amplifi re (CV/APC)
IC500 IC Voltage regulator (33A)
IC501 IC Voltage regulator (33M)
IC502 IC Voltage regulator (15M)
IC503 IC Voltage regulator (33C)
IC504 IC Voltage regulator (50C)
IC505 IC DC/DC converter (38M)
IC506 IC Reset
IC600 IC Frash memory
IC601 IC DSP
IC602 IC Sum amplifi re
IC603 IC SRAM
IC604 IC Reset
IC605 IC Motion sensor
IC606 IC Buffer amplifi re
IC607 IC ASIC
IC608,609 IC And gate (2 Input)
IC900 IC Voltage regulator (50V)
IC901 IC Audio power amplifi re
Q101 Transistor RF amplifi re
Q102 FET Pre-drive amplifi re
Q103 Transistor DC switch (FET BIAS)
Q104 FET Drive amplifi re
Q105 FET DC switch (APC)
Q106 FET Final amplifi re
Q107 Transistor DC switch (APC)
Q108 FET Switch control (BIAS)
Q109 FET Switch control (APC)
Q200 FET RF amplifi re(LNA)
Q300 Transistor Tripler
Q301 Transistor 1st IF amplifi re
Q401 FET VCO (TX/RX)
Q402 FET VCO (TA)
18
COMPONENTS DESCRIPTION
Ref No. Part Name Description
Q403 Transistor Ripple Filter
Q404 FET Switch control (Q406)
Q405 Transistor Doubler
Q406 FET DC switch (VCO)
Q407 Transistor Buffer amplifi re
Q408 Transistor RF amplifi re
Q500 FET DC switch (SB2)
Q501 FET Switch control (Q500)
Q502 Transistor Switch control (Q504)
Q503 FET DC switch (50CS)
Q504 Transistor DC switch (50T)
Q505 Transistor DC switch (50R)
Q506,507 FET Level converter
Q508 Transistor Switch control (SB1)
Q509 Transistor Load
Q600 FET DC switch (SB2)
Q900 Transistor DC switch (SB2)
Q901 Transistor Switch control (Q902)
Q902 Transistor DC switch (AF AMP)
Q903 FET Switch control (AF mute)
Q904 FET AF mute switch
Q905 FET Level converter
Q906 FET AF mute switch
D100 Zener diode Over voltage protection
D102-105 Diode Antenna switch
D200 Diode Limitter
D400 Diode Limitter
D402,403
D404-407
D408,409
D410 Diode Speed up
D411,412 Diode RF switch
D500 Diode Receive protection (+B)
D501 Diode Speed up
D502,503 Diode DC/DC converter
D505 Diode Bypass
D506 Diode Receive current prevention
D900,901 Diode Receive current prevention
Variable capacitnce
diode
Variable capacitnce
diode
Variable capacitnce
diode
VCO frequency control
VCO assist control
TX modulation
NX-420
19
NX-420
PARTS LIST
New Parts.
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.
NX-420
DISPLAY UNIT (X54-3760-XX)
Ref. No.
indicates safety critical components.
New
Ad dress
Parts No. Description
parts
NX-420
1 2B A02-4130-13 PLASTIC CABINET ASSY K
3 2B A02-4132-13 PLASTIC CABINET ASSY(16KEY) K3
4 1B A10-4148-01 CHASSIS
6 3A B01-0694-13 ESCUTCHEON
7 1C B09-0686-03 CAP (ACCESSORY)
8 1A B11-1869-04 ILLUMINATION GUIDE(TX/BUSY)
9 1A B11-1890-04 FILTER(LCD) K3
10 1A B11-1891-02 ILLUMINATION GUIDE(LCD) K3
11 1A B38-0935-05 LCD K3
12 1A B42-7417-04 STICKER
13 2D
16 1B,1D D32-0454-04 STOPPER(16CH)
18 3A E04-0467-15 RF COAXIAL RECEPTACLE(SMA)
19 2A E23-1363-04 TERMINAL(ANT)
20 1A E29-1232-05 INTER CONNECTOR(LCD) K3
21 1A E37-1532-15 LEAD WIRE WITH CONNECTOR
22 1A E37-1537-05 FLAT CABLE(X57-X54)
23 2A E72-0435-03 TERMINAL BLOCK
26 1A G02-1864-04 EARTH SPRING(X54)
27 1B G09-0443-04 KNOB SPRING(VOL/SEL)
28 1B G10-1827-04 FIBROUS SHEET(SP)
29 1A G11-4272-14 RUBBER CUSHION(SP)
30 3A G11-4315-14 SHEET(Q106)
31 1A G11-4335-14 SHEET(LCD) K3
32 1A G11-4368-04 SHEET(TERMINAL BLOCK)
33 3A G11-4500-04 SHEET(AIR)
34 1A G11-4527-04 SHEET(SP)
35 3A G11-4543-04 SHEET(PTT)
36 1A G11-4558-04 SHEET(ECM)
37 3A G11-4561-04 SHEET(TX/BUSY)
38 1A G11-4562-04 SHEET(SP HOLDER)
39 1A G13-2068-04 CUSHION(VOL/SEL)
40 2A G13-2220-04 CUSHION(X54)
41 2A G13-2249-04 CUSHION
42 3A G53-1603-04 PACKING(SMA)
43 2B G53-1862-02 PACKING(TOP/BATT)
44 2B G53-1863-01 PACKING K
45 1B G53-1865-11 PACKING(16 KEY) K3
46 1B G53-1866-04 PACKING(TERMINAL)
47 1A G53-1885-03 PACKING(JACK)
48 1C H12-4312-02 PACKING FIXTURE
49 3C
51 1D J19-5483-23 HOLDER (ACCESSORY)
52 1A J19-5547-01 HOLDER(FG-SP)
53 1A J21-8631-03 MOUNTING HARDWARE(LCD) K3
54 1D J29-0701-25 BELT CLIP (ACCESSORY)
55 1A J69-0370-04 RING(JACK)
56 3A J87-0027-05 FPC(PTT)
57 2A J87-0040-05 FPC(VOL/SEL)
58 1A K29-9485-13 KNOB(VOLUME)
B62-2470-00
H52-2594-02 ITEM CARTON CASE
INSTRUCTION MANUAL (ACCESSORY)
Destination
L : Scandinavia K : USA P : Canada
Y : PX (Far East, Hawaii) T : England E : Eu rope
C : China X : Australia M : Oth er Areas
Ref. No.
59 1B K29-9486-13 KNOB(SELECTOR)
60 1B K29-9500-03 KNOB(PTT)
61 1B K29-9501-03 BUTTON KNOB(PTT)
A 3A N09-2438-05 BINDING HEAD SCREW(ANT)
B 3A N09-6608-05 SPECIAL SCREW
C 3A N14-0864-04 CIRCULAR NUT(VOLUME)
D 3A N14-0865-04 CIRCULAR NUT(SELECTOR)
E 3A N30-3006-43 PAN HEAD MACHINE SCREW
F
VR1 3A R31-0685-05 VARIABLE RESISTOR(VOLUME)
S101 2A S60-0448-05 ROTARY SWITCH(SELECTOR)
65 1A T07-0787-05 SPEAKER
66 1D
New
Ad dress
1A,2A,3A
N83-2005-48 PAN HEAD TAPTITE SCREW(X54/57)
Parts No. Description
parts
T90-1114-05 WHIP ANTENNA (ACCESSORY)
X57-8370-11 TX-RX UNIT(FOR SERVICE)
DISPLAY UNIT (X54-3760-XX) -10: K3 -12: K,
D1 B30-2278-05 LED(RED/YELLOW)
D7 -14 B30-2337-05 LED(YELLOW) K3
D18 ,19 B30-2210-05 LED K3
C1 CK73HB1H471K CHIP C 470PF K
C2 CK73HB1H681K CHIP C 680PF K
C3 CC73HCH1H270J CHIP C 27PF J
C4 CK73HB1H471K CHIP C 470PF K
C5 CK73HB1A104K CHIP C 0.10UF K
C6 CK73HB1H102K CHIP C 1000PF K
C7 ,8 CC73HCH1H470J CHIP C 47PF J
C10 CC73HCH1H101J CHIP C 100PF J
C11 CK73HB1H681K CHIP C 680PF K
C13 CC73HCH1H101J CHIP C 100PF J
C15 CK73HB1E103K CHIP C 0.010UF K
C16 CK73HB1H102K CHIP C 1000PF K
C19 CK73HB1A104K CHIP C 0.10UF K
C20 CK73HB1H102K CHIP C 1000PF K
C21 CK73HB1E103K CHIP C 0.010UF K
C22 CK73HB1A224K CHIP C 0.22UF K
C23 CC73HCH1H470J CHIP C 47PF J
C25 CK73HB1A224K CHIP C 0.22UF K
C26 CC73HCH1H470J CHIP C 47PF J
C28 ,29 CC73HCH1H470J CHIP C 47PF J
C30 CK73HB0J105K CHIP C 1.0UF K
C31 CC73HCH1H470J CHIP C 47PF J
C32 CK73HB1H122K CHIP C 1200PF K
C33 ,34 CC73HCH1H470J CHIP C 47PF J
C35 CK73HB1A104K CHIP C 0.10UF K
C36 CC73HCH1H470J CHIP C 47PF J
C37 CK73HB1H472K CHIP C 4700PF K
C38 CC73HCH1H181J CHIP C 180PF J
C39 CK73HB1A104K CHIP C 0.10UF K
C40 CC73HCH1H470J CHIP C 47PF J
Desti-
nation
20
PARTS LIST
Ref. No.
C42 -44 CC73HCH1H470J CHIP C 47PF J
C45 CK73HB1H102K CHIP C 1000PF K
C47 CK73HB1A104K CHIP C 0.10UF K
C48 CK73HB0J105K CHIP C 1.0UF K
C49 CK73HB1H102K CHIP C 1000PF K
Ad dress
New
Parts No. Description
parts
Destination
NX-420
DISPLAY UNIT (X54-3760-XX)
TX-RX UNIT (X57-8370-10)
Ref. No.
R26 RK73HB1J683J CHIP R 68K J 1/16W
R28 -30 RK73HB1J000J CHIP R 0 J 1/16W
R33 -35 RK73HB1J104J CHIP R 100K J 1/16W
R37 RK73HB1J154J CHIP R 150K J 1/16W
R39 ,40 RK73HB1J103J CHIP R 10K J 1/16W
Ad dress
New
Parts No. Description
parts
Destination
C52 ,53 CK73HB1A104K CHIP C 0.10UF K
C54 CK73HB1H331K CHIP C 330PF K
C58 CC73HCH1H680J CHIP C 68PF J
C62 CC73HCH1H101J CHIP C 100PF J
C63 ,64 CK73HB0J105K CHIP C 1.0UF K
C67 CK73HB1H102K CHIP C 1000PF K
C68 CK73HB1E103K CHIP C 0.010UF K
C70 CK73HB0J105K CHIP C 1.0UF K
C71 CK73HB1A104K CHIP C 0.10UF K
C73 CK73GB0J106K CHIP C 10UF K
C74 CK73HB0J105K CHIP C 1.0UF K
C78 CK73HB1E103K CHIP C 0.010UF K
C79 CK73HB1A473K CHIP C 0.047UF K
C83 CK73HB1H102K CHIP C 1000PF K
C84 CK73HB1A473K CHIP C 0.047UF K
C85 CK73HB1H681K CHIP C 680PF K
C90 CK73HB1E103K CHIP C 0.010UF K
C91 CK73HB1H471K CHIP C 470PF K
C92 CK73HB1H102K CHIP C 1000PF K
C93 ,94 CK73HB1E103K CHIP C 0.010UF K
CN5 E40-6893-05 FLAT CABLE CONNECTOR(24P)
CN6 E40-6883-05 FLAT CABLE CONNECTOR(6P)
L1 ,2 L92-0408-05 CHIP FERRITE
L3 L92-0138-05 CHIP FERRITE K3
CP1 RK74HB1J101J CHIP-COM 100 J 1/16W
CP2 RK74HB1J102J CHIP-COM 1.0K J 1/16W
CP3 RK74HB1J471J CHIP-COM 470 J 1/16W
CP4 ,5 RK74HB1J102J CHIP-COM 1.0K J 1/16W
CP6 RK74HB1J471J CHIP-COM 470 J 1/16W
R41 ,42 RK73HB1J683J CHIP R 68K J 1/16W
R44 ,45 RK73HB1J104J CHIP R 100K J 1/16W
R47 RK73HB1J223J CHIP R 22K J 1/16W
R50 RK73HB1J223J CHIP R 22K J 1/16W
R52 RK73HB1J471J CHIP R 470 J 1/16W
R53 RK73HB1J182J CHIP R 1.8K J 1/16W
R61 -64 RK73HB1J332J CHIP R 3.3K J 1/16W
R65 RK73HB1J682J CHIP R 6.8K J 1/16W
R66 RK73HB1J000J CHIP R 0 J 1/16W
R67 RK73HB1J471J CHIP R 470 J 1/16W
R69 RK73HB1J222J CHIP R 2.2K J 1/16W
R70 -72 RK73HB1J103J CHIP R 10K J 1/16W
R73 RK73GB2A433J CHIP R 43K J 1/10W
R74 RK73HB1J121J CHIP R 120 J 1/16W
R75 RK73HB1J222J CHIP R 2.2K J 1/16W
R76 RK73HB1J681J CHIP R 680 J 1/16W
R77 RK73HB1J103J CHIP R 10K J 1/16W
R78 RK73HB1J682J CHIP R 6.8K J 1/16W
R79 RK73HB1J563J CHIP R 56K J 1/16W
R81 RK73HB1J000J CHIP R 0 J 1/16W
R82 RK73HB1J332J CHIP R 3.3K J 1/16W
R83 RK73HB1J000J CHIP R 0 J 1/16W
R83 ,84 RK73HB1J000J CHIP R 0 J 1/16W
R86 RK73HB1J000J CHIP R 0 J 1/16W
R88 RK73HB1J000J CHIP R 0 J 1/16W
S1 -4 S70-0516-05 TACT SWITCH
S5 -20 S70-0519-05 TACT SWITCH K3
MIC1 T91-0673-05 MIC ELEMENT
CP7 -9 RK74HB1J102J CHIP-COM 1.0K J 1/16W
CP10 RK74HB1J101J CHIP-COM 100 J 1/16W
CP11-13 RK74HB1J102J CHIP-COM 1.0K J 1/16W
CP14 RK74HA1J102J CHIP-COM 1.0K J 1/16W
R1 RK73HB1J472J CHIP R 4.7K J 1/16W
R2 RK73HB1J103J CHIP R 10K J 1/16W
R3 RK73HB1J391J CHIP R 390 J 1/16W
R4 RK73HB1J823J CHIP R 82K J 1/16W
R5 RK73HB1J100J CHIP R 10 J 1/16W
R6 RK73HB1J821J CHIP R 820 J 1/16W
R7 RK73HB1J472J CHIP R 4.7K J 1/16W
R8 RK73HB1J153J CHIP R 15K J 1/16W
R9 RK73HB1J333J CHIP R 33K J 1/16W
R10 RK73HB1J000J CHIP R 0 J 1/16W
R11 ,12 RK73HB1J334J CHIP R 330K J 1/16W
R13 RK73HB1J471J CHIP R 470 J 1/16W
R14 RK73HB1J334J CHIP R 330K J 1/16W
R15 RK73HB1J332J CHIP R 3.3K J 1/16W
R16 RK73HB1J470J CHIP R 47 J 1/16W
R17 RK73HB1J104J CHIP R 100K J 1/16W
R18 RK73HB1J393J CHIP R 39K J 1/16W
R19 ,20 RK73HB1J224J CHIP R 220K J 1/16W
R21 ,22 RK73HB1J563J CHIP R 56K J 1/16W
R23 RK73HB1J222J CHIP R 2.2K J 1/16W
R24 RK73HB1J000J CHIP R 0 J 1/16W
D2 KDR731 DIODE
D3 ,4 DA221 DIODE
D15 HN2S03FE DIODE K3
D16 1SS388F DIODE K3
IC1 ,2 TC75W51FK(F) MOS-IC
IC4 R2A20178NP MICROCONTROLLER IC
IC6 TC75W51FK(F) MOS-IC
IC8 LC75857W-E MOS-IC K3
Q1 UMG9N TRANSISTOR
Q2 SSM3K15TE(F) FET
Q3 KTC4075E(Y,GR) TRANSISTOR
Q4 2SC4738(GR)F TRANSISTOR
Q5 2SA1832(GR)F TRANSISTOR
Q6 2SA1362-F(GR) TRANSISTOR K3
Q7 ,8 2SC5383-T111 TRANSISTOR K3
TH1
ERTJ0EV104H THERMISTOR(100K)
TX-RX UNIT (X57-8370-10)
C100 CC73HCH1H101J CHIP C 100PF J
C102 CK73HB1E103K CHIP C 0.010UF K
C103-108 CC73HCH1H101J CHIP C 100PF J
C110,111 CC73HCH1H080B CHIP C 8.0PF B
C112 CK73HB1E104K CHIP C 0.10UF K
21
NX-420
TX-RX UNIT (X57-8370-10)
Ref. No.
C113 CC73HCH1H100B CHIP C 10PF B
C114-119 CC73HCH1H101J CHIP C 100PF J
C120 CK73HB1E104K CHIP C 0.10UF K
C121 CC73HCH1H120J CHIP C 12PF J
C122,123 CK73HB1E104K CHIP C 0.10UF K
Ad dress
New
parts
Parts No. Description
PARTS LIST
Destination
Ref. No.
C221 CC73HCH1H030B CHIP C 3.0PF B
C222 CC73HCH1H101J CHIP C 100PF J
C224 CC73HCH1H080B CHIP C 8.0PF B
C226 CC73HCH1H101J CHIP C 100PF J
C227 CK73HB1E104K CHIP C 0.10UF K
Ad dress
New
Parts No. Description
parts
Destination
C124 CC73HCH1H101J CHIP C 100PF J
C126 CC73HCH1H090B CHIP C 9.0PF B
C129 CS77BA1A4R7M CHIP TNTL 4.7UF 10WV
C130 CC73HCH1H101J CHIP C 100PF J
C133 CC73HCH1H101J CHIP C 100PF J
C136 CC73HCH1H100B CHIP C 10PF B
C138 CC73GCH1H820J CHIP C 82PF J
C140 CK73GB1E105K CHIP C 1.0UF K
C141 CC73HCH1H101J CHIP C 100PF J
C143 CC73HCH1H101J CHIP C 100PF J
C145 CC73HCH1H270G CHIP C 27PF G
C146-148 CC73HCH1H101J CHIP C 100PF J
C150,151 CC73HCH1H101J CHIP C 100PF J
C152 C93-0941-05 CHIP C 18PF G
C153 CK73HB1E103K CHIP C 0.010UF K
C154 CC73GCH1H060B CHIP C 6.0PF B
C155 CK73HB1E104K CHIP C 0.10UF K
C156 CK73GB1E105K CHIP C 1.0UF K
C157 CC73GCH1H040B CHIP C 4.0PF B
C158 CK73HB1E103K CHIP C 0.010UF K
C159 CC73HCH1H101J CHIP C 100PF J
C161 CC73HCH1H101J CHIP C 100PF J
C164 CC73HCH1H101J CHIP C 100PF J
C168 CC73HCH1H101J CHIP C 100PF J
C169 CC73GCH1H101J CHIP C 100PF J
C171 CC73HCH1H101J CHIP C 100PF J
C172 CC73GCH1H020B CHIP C 2.0PF B
C173 CC73HCH1H020B CHIP C 2.0PF B
C175 CC73GCH1H101J CHIP C 100PF J
C177 CC73GCH1H101J CHIP C 100PF J
C228 CK73HB1E103K CHIP C 0.010UF K
C229 CC73HCH1H151J CHIP C 150PF J
C230-232 CC73HCH1H101J CHIP C 100PF J
C234 CC73HCH1H020B CHIP C 2.0PF B
C236 CC73HCH1H100B CHIP C 10PF B
C237,238 CC73HCH1H101J CHIP C 100PF J
C239 CK73HB1E103K CHIP C 0.010UF K
C240 CC73HCH1H270J CHIP C 27PF J
C300 CK73HB1E103K CHIP C 0.010UF K
C301 CK73HB1A104K CHIP C 0.10UF K
C302 CC73HCH1H100B CHIP C 10PF B
C303 CK73HB1E103K CHIP C 0.010UF K
C306 CC73HCH1H100B CHIP C 10PF B
C307 CC73HCH1H101J CHIP C 100PF J
C309 CC73HCH1H101J CHIP C 100PF J
C310 CC73HCH1H151J CHIP C 150PF J
C312 CC73HCH1H330G CHIP C 33PF G
C313-315 CK73HB1A104K CHIP C 0.10UF K
C316 CK73FB1C106K CHIP C 10UF K
C317 CC73HCH1H680J CHIP C 68PF J
C318 CK73HB1A104K CHIP C 0.10UF K
C319 CK73HB1E103K CHIP C 0.010UF K
C320-322 CK73HB1A104K CHIP C 0.10UF K
C323 CK73FB1C106K CHIP C 10UF K
C325 CC73HCH1H100B CHIP C 10PF B
C326 CK73HB1A104K CHIP C 0.10UF K
C327 CK73HB1E103K CHIP C 0.010UF K
C329-332 CK73HB1A104K CHIP C 0.10UF K
C333 CK73GB1A474K CHIP C 0.47UF K
C334 CK73HB1E103K CHIP C 0.010UF K
C178 CC73GCH1H2R5B CHIP C 2.5PF B
C181 CC73HCH1H101J CHIP C 100PF J
C182 CC73GCH1H2R5B CHIP C 2.5PF B
C183 CC73GCH1H150G CHIP C 15PF G
C185 CC73GCH1H150G CHIP C 15PF G
C190 CC73HCH1H040B CHIP C 4.0PF B
C191 CC73HCH1H050B CHIP C 5.0PF B
C192 CC73HCH1H101J CHIP C 100PF J
C200 CK73HB1A105K CHIP C 1.0UF K
C202 CK73HB1E103K CHIP C 0.010UF K
C203 CC73HCH1H101J CHIP C 100PF J
C204 CC73HCH1H040B CHIP C 4.0PF B
C205 CC73HCH1H330J CHIP C 33PF J
C207 CC73HCH1H010B CHIP C 1.0PF B
C208 CK73HB1E103K CHIP C 0.010UF K
C209 CC73HCH1H010B CHIP C 1.0PF B
C210 CC73HCH1H030B CHIP C 3.0PF B
C211 CC73HCH1H101J CHIP C 100PF J
C212 CC73HCH1H330J CHIP C 33PF J
C213 CC73HCH1H020B CHIP C 2.0PF B
C214 CC73HCH1H040B CHIP C 4.0PF B
C215 CC73HCH1H010B CHIP C 1.0PF B
C216,217 CC73HCH1H040B CHIP C 4.0PF B
C218 CC73HCH1H030B CHIP C 3.0PF B
C219 CC73HCH1H101J CHIP C 100PF J
22
C335 CC73HCH1H470J CHIP C 47PF J
C336,337 CC73HCH1H101J CHIP C 100PF J
C338,339 CK73HB1E103K CHIP C 0.010UF K
C340 CC73HCH1H330J CHIP C 33PF J
C341 CC73HCH1H030B CHIP C 3.0PF B
C342 CC73HCH1H101J CHIP C 100PF J
C343 CC73HCH1H470J CHIP C 47PF J
C344 CC73HCH1H180G CHIP C 18PF G
C346 CC73HCH1H060B CHIP C 6.0PF B
C347 CK73HB1E103K CHIP C 0.010UF K
C400 CK73HB1E103K CHIP C 0.010UF K
C401 CC73HCH1H101J CHIP C 100PF J
C402 CC73HCH1H100B CHIP C 10PF B
C403 CK73HB1E103K CHIP C 0.010UF K
C404 CC73HCH1H100B CHIP C 10PF B
C405 CK73HB1H102K CHIP C 1000PF K
C406 CK73HB1E103K CHIP C 0.010UF K
C407 CC73HCH1H101J CHIP C 100PF J
C410 CC73HCH1H100B CHIP C 10PF B
C411,412 CK73HB1E103K CHIP C 0.010UF K
C413 CC73HCH1H101J CHIP C 100PF J
C414 CK73HB1E103K CHIP C 0.010UF K
C415-422 CC73HCH1H101J CHIP C 100PF J
C423 CK73HB1A104K CHIP C 0.10UF K
C424 CC73HCH1H101J CHIP C 100PF J
PARTS LIST
Ref. No.
C425 CK73HB1A104K CHIP C 0.10UF K
C426-429 CC73HCH1H101J CHIP C 100PF J
C430 CK73HB1E103K CHIP C 0.010UF K
C431 CS77MA1VR15M CHIP TNTL 0.15UF 35WV
C432 C93-0787-05 CHIP C 0.1UF J
Ad dress
New
Parts No. Description
parts
Destination
NX-420
TX-RX UNIT (X57-8370-10)
Ref. No.
C512 CK73HB1A104K CHIP C 0.10UF K
C513,514 CC73HCH1H101J CHIP C 100PF J
C515 CK73HB1H682K CHIP C 6800PF K
C516-520 CC73HCH1H101J CHIP C 100PF J
C521,522 CK73HB1A105K CHIP C 1.0UF K
Ad dress
New
Parts No. Description
parts
Destination
C433 CS77BA1D100M CHIP TNTL 10UF 20WV
C435 CC73HCH1H101J CHIP C 100PF J
C436 C93-1906-05 FILM CAP 0.047UF J
C437 CK73HB1H102K CHIP C 1000PF K
C438 CK73HB1A104K CHIP C 0.10UF K
C439-441 CC73HCH1H101J CHIP C 100PF J
C442,443 CK73HB1H471K CHIP C 470PF K
C444 CC73HCH1H101J CHIP C 100PF J
C445 CK73HB1A104K CHIP C 0.10UF K
C446 CK73HB1H472K CHIP C 4700PF K
C448 CK73HB1A105K CHIP C 1.0UF K
C449 CC73HCH1H070B CHIP C 7.0PF B
C450 CC73HCH1H060B CHIP C 6.0PF B
C451 CC73HCH1H1R5B CHIP C 1.5PF B
C452 CC73HCH1H010B CHIP C 1.0PF B
C454,455 CC73HCH1H0R5B CHIP C 0.5PF B
C456 CC73HCH1H101J CHIP C 100PF J
C457 CC73HCH1H040B CHIP C 4.0PF B
C458 CC73HCH1H030B CHIP C 3.0PF B
C459 CC73HCH1H060B CHIP C 6.0PF B
C460 CC73HCH1H050B CHIP C 5.0PF B
C461 CS77BP1A100M CHIP TNTL 10UF 10WV
C462,463 CC73HCH1H050B CHIP C 5.0PF B
C464 CC73HCH1H101J CHIP C 100PF J
C465 CC73GCH1H101J CHIP C 100PF J
C466 CC73HCH1H101J CHIP C 100PF J
C467 CC73HCH1H0R5B CHIP C 0.5PF B
C468 CK73GB0J475K CHIP C 4.7UF K
C469 CC73HCH1H0R5B CHIP C 0.5PF B
C470 CC73HCH1H101J CHIP C 100PF J
C523 CK73GB0J106K CHIP C 10UF K
C524 CC73HCH1H101J CHIP C 100PF J
C525 CK73HB1A105K CHIP C 1.0UF K
C526 CK73GB0J106K CHIP C 10UF K
C527 CK73HB1H102K CHIP C 1000PF K
C529 CS77BP1A100M CHIP TNTL 10UF 10WV
C530 CK73HB1H102K CHIP C 1000PF K
C531 CK73GB1E105K CHIP C 1.0UF K
C532 CK73GB0J106K CHIP C 10UF K
C533 CK73HB1A224K CHIP C 0.22UF K
C534 CC73HCH1H560J CHIP C 56PF J
C535 CK73HB1H102K CHIP C 1000PF K
C536 CC73HCH1H101J CHIP C 100PF J
C537 CK73HB1E103K CHIP C 0.010UF K
C539,540 CK73HB1A105K CHIP C 1.0UF K
C541 CK73HB1H102K CHIP C 1000PF K
C542 CK73HB1H682K CHIP C 6800PF K
C543 CK73HB1H102K CHIP C 1000PF K
C545,546 CC73HCH1H101J CHIP C 100PF J
C547 CK73HB1H102K CHIP C 1000PF K
C548 CK73HB1A104K CHIP C 0.10UF K
C549 CK73FB1E475K CHIP C 4.7UF K
C550 CK73HB1A104K CHIP C 0.10UF K
C551 CK73FB1C106K CHIP C 10UF K
C552 CC73HCH1H101J CHIP C 100PF J
C553 CK73GB1E105K CHIP C 1.0UF K
C554 CK73HB1H102K CHIP C 1000PF K
C563 CC73HCH1H101J CHIP C 100PF J
C601,602 CK73GB0J106K CHIP C 10UF K
C605,606 CK73HB1A104K CHIP C 0.10UF K
C607 CK73HB1E103K CHIP C 0.010UF K
C472 CC73HCH1H101J CHIP C 100PF J
C473 CC73HCH1H100B CHIP C 10PF B
C474 CC73HCH1H101J CHIP C 100PF J
C475 CC73HCH1H040B CHIP C 4.0PF B
C476-478 CC73HCH1H101J CHIP C 100PF J
C479 CC73HCH1H020B CHIP C 2.0PF B
C480 CC73HCH1H120J CHIP C 12PF J
C481 CC73HCH1H020B CHIP C 2.0PF B
C482 CC73HCH1H150J CHIP C 15PF J
C483 CC73HCH1H1R5B CHIP C 1.5PF B
C484 CC73HCH1H101J CHIP C 100PF J
C486-488 CC73HCH1H101J CHIP C 100PF J
C489 CC73HCH1H020B CHIP C 2.0PF B
C492,493 CC73HCH1H040B CHIP C 4.0PF B
C494 CC73HCH1H120J CHIP C 12PF J
C495 CC73HCH1H050B CHIP C 5.0PF B
C496 CC73HCH1H101J CHIP C 100PF J
C500 CK73HB1H102K CHIP C 1000PF K
C501 CC73HCH1H220G CHIP C 22PF G
C503 CC73HCH1H101J CHIP C 100PF J
C506 CK73HB1A105K CHIP C 1.0UF K
C508 CK73HB1A105K CHIP C 1.0UF K
C509 CK73GB0J475K CHIP C 4.7UF K
C510 CC73HCH1H101J CHIP C 100PF J
C511 CK73HB1H682K CHIP C 6800PF K
C608 CK73HB1H102K CHIP C 1000PF K
C609-611 CC73HCH1H470J CHIP C 47PF J
C614 CC73HCH1H470J CHIP C 47PF J
C618 CC73HCH1H470J CHIP C 47PF J
C621-628 CC73HCH1H470J CHIP C 47PF J
C629 CK73HB1H102K CHIP C 1000PF K
C631 CK73HB1A105K CHIP C 1.0UF K
C632 CK73HB1E103K CHIP C 0.010UF K
C633 CC73HCH1H101J CHIP C 100PF J
C634 CK73HB1H102K CHIP C 1000PF K
C635-639 CK73HB1A104K CHIP C 0.10UF K
C640 CK73HB1E103K CHIP C 0.010UF K
C641 CK73HB1A105K CHIP C 1.0UF K
C642 CK73HB1A104K CHIP C 0.10UF K
C643 CK73HB1E103K CHIP C 0.010UF K
C644 CK73HB1A683K CHIP C 0.068UF K
C645 CK73HB1E103K CHIP C 0.010UF K
C646 CK73HB1C473K CHIP C 0.047UF K
C647 CK73HB1A105K CHIP C 1.0UF K
C648,649 CK73HB1E103K CHIP C 0.010UF K
C650 CK73HB1A104K CHIP C 0.10UF K
C651,652 CK73HB1E103K CHIP C 0.010UF K
C654-657
C658 CK73HB1A104K CHIP C 0.10UF K
C660 CK73HB1E103K CHIP C 0.010UF K
CC73HCH1H470J CHIP C 47PF J
23
NX-420
TX-RX UNIT (X57-8370-10)
Ref. No.
C661 CK73HB1A104K CHIP C 0.10UF K
C663 CK73GB0J106K CHIP C 10UF K
C664 CK73HB1E103K CHIP C 0.010UF K
C665 CK73HB1H102K CHIP C 1000PF K
C666 CK73HB1E103K CHIP C 0.010UF K
Ad dress
New
parts
Parts No. Description
PARTS LIST
Destination
Ref. No.
L109 L92-0408-05 CHIP FERRITE
L112 L34-4550-05 AIR-CORE COIL(7.5T)
L113 L92-0149-05 CHIP FERRITE
L114 L41-6878-43 SMALL FIXED INDUCTOR(68NH)
L115 L40-3975-71 SMALL FIXED INDUCTOR(39NH)
Ad dress
New
Parts No. Description
parts
Destination
C667 CK73HB1A105K CHIP C 1.0UF K
C668,669 CK73HB1A104K CHIP C 0.10UF K
C670 CK73HB1H682K CHIP C 6800PF K
C671 CK73GB0J106K CHIP C 10UF K
C672 CC73HCH1H030B CHIP C 3.0PF B
C673 CK73HB1E103K CHIP C 0.010UF K
C674 CK73HB1A105K CHIP C 1.0UF K
C675 CK73HB1A104K CHIP C 0.10UF K
C677 CK73HB1E103K CHIP C 0.010UF K
C678 CK73HB1A105K CHIP C 1.0UF K
C679 CK73HB1A104K CHIP C 0.10UF K
C681 CK73HB1E103K CHIP C 0.010UF K
C682,683 CK73HB1H102K CHIP C 1000PF K
C684,685 CK73HB1E103K CHIP C 0.010UF K
C902 CK73HB1A105K CHIP C 1.0UF K
C903 CC73HCH1H101J CHIP C 100PF J
C904 CC73HCH1H221J CHIP C 220PF J
C905 CK73HB1H102K CHIP C 1000PF K
C906 CK73GB1E105K CHIP C 1.0UF K
C907 CK73HB1A105K CHIP C 1.0UF K
C908 CK73HB1A104K CHIP C 0.10UF K
C909 CK73GB1E105K CHIP C 1.0UF K
C910 CK73GB0J106K CHIP C 10UF K
C911 CC73HCH1H101J CHIP C 100PF J
C912 CK73HB1A474K CHIP C 0.47UF K
C914 C92-0973-05 CHIP TNTL 220UF 6.3WV
C915 CC73HCH1H101J CHIP C 100PF J
C916 CC73HCH1H470J CHIP C 47PF J
C917-921 CC73HCH1H101J CHIP C 100PF J
C923 CC73HCH1H470J CHIP C 47PF J
L116 L34-4563-05 AIR-CORE COIL(3T)
L117 L41-7568-45 SMALL FIXED INDUCTOR(7.5NH)
L118 L79-1468-05 FILTER MODULE
L119 L34-4563-05 AIR-CORE COIL(3T)
L120 L34-4564-05 AIR-CORE COIL(4T)
L190
L191
L202 L92-0446-05 BEADS CORE
L203 L40-1075-92 SMALL FIXED INDUCTOR(10NH)
L204 L40-1575-92 SMALL FIXED INDUCTOR(15NH)
L205 L40-6865-71 SMALL FIXED INDUCTOR(6.8NH)
L206 L40-8265-92 SMALL FIXED INDUCTOR(8.2NH)
L207 L40-5663-71 SMALL FIXED INDUCTOR(5.6NH)
L208 L41-8768-45 SMALL FIXED INDUCTOR(8.7NH)
L210 L40-8265-71 SMALL FIXED INDUCTOR(8.2NH)
L211 L41-7568-45 SMALL FIXED INDUCTOR(7.5NH)
L212 L79-1928-05 FILTER
L213 L92-0446-05 BEADS CORE
L214 L41-1665-45 SMALL FIXED INDUCTOR(1.6NH)
L215 L41-1278-45 SMALL FIXED INDUCTOR(12NH)
L216 L41-6868-45 SMALL FIXED INDUCTOR(6.8NH)
L217 L79-1928-05 FILTER
L218 L41-5165-45 SMALL FIXED INDUCTOR(5.1NH)
L219 L41-1665-45 SMALL FIXED INDUCTOR(1.6NH)
L300 L40-5681-86 SMALL FIXED INDUCTOR(0.56UH)
L303 L40-5675-92 SMALL FIXED INDUCTOR(56NH)
L304 L40-1085-57 SMALL FIXED INDUCTOR(100NH)
L305 L40-3391-37 SMALL FIXED INDUCTOR(3.300UH)
L306 L92-0162-05 BEADS CORE
L307 L40-2281-86 SMALL FIXED INDUCTOR(0.22UH)
L33-3032-05 CHOKE COIL
L40-1263-57 SMALL FIXED INDUCTOR(1.2NH)
C924 CC73HCH1H101J CHIP C 100PF J
CN500 E40-6573-05 FLAT CABLE CONNECTOR
CN600 E40-6893-05 FLAT CABLE CONNECTOR
CN604 E40-6568-05 FLAT CABLE CONNECTOR
CN902 E41-2359-05 PIN ASSY(4P)
J900 E11-0484-05 3.5D PHONE JACK(EXT MIC))
CN500 E40-6573-05 FLAT CABLE CONNECTOR
CN600 E40-6893-05 FLAT CABLE CONNECTOR
CN604 E40-6568-05 FLAT CABLE CONNECTOR
CN902 E41-2359-05 PIN ASSY(4P)
J900 E11-0484-05 3.5D PHONE JACK(EXT MIC))
J901 E11-0715-05 2.5D PHONE JACK(EXT SP)
F500 F53-0324-15 FUSE(2.5A)
F9
00 F53-0319-15 FUSE(1A)
CF300
CF301 L72-1040-05 CERAMIC FILTER(450KHZ/C)
L100 L40-1575-71 SMALL FIXED INDUCTOR(15NH)
L101 L40-8265-71 SMALL FIXED INDUCTOR(8.2NH)
L102 L92-0163-05 BEADS CORE
L103 L40-6865-71 SMALL FIXED INDUCTOR(6.8NH)
L104
L105 L92-0162-05 BEADS CORE
L108 L41-3978-45 SMALL FIXED INDUCTOR(39NH)
L72-1017-05 CERAMIC FILTER(450KHZ/F)
L40-3963-71 SMALL FIXED INDUCTOR(3.9NH)
24
L400 L92-0163-05 BEADS CORE
L401 L41-4795-39 SMALL FIXED INDUCTOR(4.7UH)
L403,404 L92-0163-05 BEADS CORE
L405-409 L40-2785-92 SMALL FIXED INDUCTOR(270NH)
L410 L40-2285-92 SMALL FIXED INDUCTOR(220NH)
L411,412 L33-0745-05 SMALL FIXED INDUCTOR
L413,414 L40-2785-92 SMALL FIXED INDUCTOR(270NH)
L415 L92-0446-05 BEADS CORE
L416,417 L40-2785-92 SMALL FIXED INDUCTOR(270NH)
L418 L40-2763-71 SMALL FIXED INDUCTOR(2.7NH)
L419 L40-1575-71 SMALL FIXED INDUCTOR(15NH)
L420 L40-2263-71 SMALL FIXED INDUCTOR(2.2NH)
L421 L40-3363-71 SMALL FIXED INDUCTOR(3.3NH)
L422 L40-2263-71 SMALL FIXED INDUCTOR(2.2NH)
L423-426 L40-1075-71 SMALL FIXED INDUCTOR(10NH)
L427 L40-2775-71 SMALL FIXED INDUCTOR(27NH)
L428,429 L40-1075-71 SMALL FIXED INDUCTOR(10NH)
L500 L92-0163-05 BEADS CORE
L501 L33-1494-05 SMALL FIXED INDUCTOR(4.7UH)
L502 L92-0149-05 CHIP FERRITE
L503 L92-0162-05 BEADS CORE
L504,505 L92-0467-05 CHIP FERRITE
L506 L33-1530-05 SMALL FIXED INDUCTOR(15UH)
L507 L41-1092-02
L601-603 L92-0408-05 CHIP FERRITE
SMALL FIXED INDUCTOR(1.0UH)
Ref. No.
L605-607 L92-0444-05 CHIP FERRITE
L608 L92-0162-05 BEADS CORE
L609 L92-0163-05 BEADS CORE
L610-612 L92-0444-05 CHIP FERRITE
L900,901 L92-0408-05 CHIP FERRITE
Ad dress
New
Parts No. Description
parts
PARTS LIST
Destination
Ref. No.
R150 RK73HB1J000J CHIP R 0 J 1/16W
R151 RK73HB1J271J CHIP R 270 J 1/16W
R152 RK73FB2B000J CHIP R 0 J 1/8W
R153 RK73HB1J104J CHIP R 100K J 1/16W
R154 RK73HB1J184J CHIP R 180K J 1/16W
Ad dress
New
Parts No. Description
parts
NX-420
TX-RX UNIT (X57-8370-10)
Destination
L902,903 L92-0163-05 BEADS CORE
L904 L92-0408-05 CHIP FERRITE
L906 L92-0408-05 CHIP FERRITE
X400 L77-3073-05 TCXO(16.8MHZ)
X600 L77-3015-05 TCXO(18.432MHZ)
XF300 L71-0655-05 MCF(49.95MHZ)
CP400 RK74HB1J100J CHIP-COM 10 J 1/16W
CP500 RK74HB1J104J CHIP-COM 100K J 1/16W
CP501 RK74HB1J102J CHIP-COM 1.0K J 1/16W
CP600 RK74HB1J103J CHIP-COM 10K J 1/16W
CP601-603 RK74HB1J104J CHIP-COM 100K J 1/16W
CP604 RK74HB1J101J CHIP-COM 100 J 1/16W
CP605 RK74HB1J000J CHIP-COM 0 J 1/16W
CP606 RK74HB1J104J CHIP-COM 100K J 1/16W
R1 RK73HB1J000J CHIP R 0 J 1/16W
R2 RK73HB1J000J CHIP R 0 J 1/16W
R100,101 RK73HB1J332J CHIP R 3.3K J 1/16W
R103 RK73HB1J182J CHIP R 1.8K J 1/16W
R104 RK73HB1J392J CHIP R 3.9K J 1/16W
R105 RK73HB1J000J CHIP R 0 J 1/16W
R106 RK73HB1J330J CHIP R 33 J 1/16W
R107 RK73HB1J103J CHIP R 10K J 1/16W
R108 RK73HB1J331J CHIP R 330 J 1/16W
R110 RK73HB1J220J CHIP R 22 J 1/16W
R111 RK73HB1J390J CHIP R 39 J 1/16W
R113 RK73HB1J331J CHIP R 330 J 1/16W
R114 RK73HB1J273J CHIP R 27K J 1/16W
R115 RK73HB1J471J CHIP R 470 J 1/16W
R116 RK73HB1J472J CHIP R 4.7K J 1/16W
R155 RK73HB1J104J CHIP R 100K J 1/16W
R158 RK73HB1J000J CHIP R 0 J 1/16W
R160 RK73EB2E823J CHIP R 82K J 1/4W
R200 RK73HB1J151J CHIP R 150 J 1/16W
R201 RK73HB1J471J CHIP R 470 J 1/16W
R202 RK73HB1J120J CHIP R 12 J 1/16W
R203 RK73HB1J471J CHIP R 470 J 1/16W
R204 RK73HB1J180J CHIP R 18 J 1/16W
R205 RK73HB1J271J CHIP R 270 J 1/16W
R206,207 RK73HB1J474J CHIP R 470K J 1/16W
R208 RK73HB1J000J CHIP R 0 J 1/16W
R209 RK73HB1J560J CHIP R 56 J 1/16W
R210 RK73HB1J2R2J CHIP R 2.2 J 1/16W
R211 RK73HB1J333J CHIP R 33K J 1/16W
R212 RK73HB1J683J CHIP R 68K J 1/16W
R213 RK73HB1J104J CHIP R 100K J 1/16W
R214 RK73HB1J683J CHIP R 68K J 1/16W
R215,216 RK73HB1J474J CHIP R 470K J 1/16W
R217 RK73HB1J271J CHIP R 270 J 1/16W
R300 RK73HB1J102J CHIP R 1.0K J 1/16W
R301 RK73HB1J561J CHIP R 560 J 1/16W
R303 RK73HB1J000J CHIP R 0 J 1/16W
R304 RK73HB1J100J CHIP R 10 J 1/16W
R305 RK73HB1J822J CHIP R 8.2K J 1/16W
R306 RK73HH1J334D CHIP R 330K D 1/16W
R308 RK73HB1J000J CHIP R 0 J 1/16W
R309
RK73GB2A821J CHIP R 820 J 1/10W
R310
R313 RK73HB1J103J CHIP R 10K J 1/16W
R317,318 RK73HB1J102J CHIP R 1.0K J 1/16W
RK73HB1J000J CHIP R 0 J 1/16W
R117 RK73HB1J120J CHIP R 12 J 1/16W
R118 RK73HB1J471J CHIP R 470 J 1/16W
R119 RK73HB1J103J CHIP R 10K J 1/16W
R120 RK73HB1J000J CHIP R 0 J 1/16W
R121 RK73HB1J561J CHIP R 560 J 1/16W
R122 RK73HB1J103J CHIP R 10K J 1/16W
R123 RK73HB1J561J CHIP R 560 J 1/16W
R124 RK73HB1J103J CHIP R 10K J 1/16W
R125 RK73HB1J102J CHIP R 1.0K J 1/16W
R127 RK73HB1J102J CHIP R 1.0K J 1/16W
R128 RK73HB1J331J CHIP R 330 J 1/16W
R129 RK73GB2A000J CHIP R 0 J 1/10W
R130 RK73HB1J102J CHIP R 1.0K J 1/16W
R131 RK73HB1J103J CHIP R 10K J 1/16W
R132,133 RK73EB2HR22F CHIP R 0.22 F 1/2W
R136 RK73HB1J472J CHIP R 4.7K J 1/16W
R137 RK73HB1J103J CHIP R 10K J 1/16W
R138,139 RK73HH1J154D CHIP R 150K D 1/16W
R141,142 RK73HH1J154D CHIP R 150K D 1/16W
R143 RK73HB1J682J CHIP R 6.8K J 1/16W
R144,145 RK73HH1J154D CHIP R 150K D 1/16W
R146 RK73HB1J472J CHIP R 4.7K J 1/16W
R147 RK73HB1J271J CHIP R 270 J 1/16W
R148 RK73HB1J474J CHIP R 470K J 1/16W
R149 RK73HB1J473J CHIP R 47K J 1/16W
R319 RK73HB1J274J CHIP R 270K J 1/16W
R321 RK73HB1J104J CHIP R 100K J 1/16W
R322 RK73HB1J103J CHIP R 10K J 1/16W
R323 RK73HB1J472J CHIP R 4.7K J 1/16W
R324 RK73HB1J223J CHIP R 22K J 1/16W
R325 RK73HB1J183J CHIP R 18K J 1/16W
R326 RK73HB1J103J CHIP R 10K J 1/16W
R327 RK73HB1J393J CHIP R 39K J 1/16W
R328 RK73HB1J391J CHIP R 390 J 1/16W
R329 RK73HB1J103J CHIP R 10K J 1/16W
R330 RK73HB1J104J CHIP R 100K J 1/16W
R331 RK73HB1J221J CHIP R 220 J 1/16W
R333 RK73HB1J564J CHIP R 560K J 1/16W
R334 RK73HB1J103J CHIP R 10K J 1/16W
R335 RK73HB1J221J CHIP R 220 J 1/16W
R336 RK73HB1J102J CHIP R 1.0K J 1/16W
R337 RK73HB1J104J CHIP R 100K J 1/16W
R338 RK73HB1J103J CHIP R 10K J 1/16W
R340 RK73HB1J101J CHIP R 100 J 1/16W
R400 RK73HB1J100J CHIP R 10 J 1/16W
R401 RK73HB1J102J CHIP R 1.0K J 1/16W
R405 RK73HB1J100J CHIP R 10 J 1/16W
R406,407 RK73HB1J000J CHIP R 0 J 1/16W
R408 RK73HB1J102J CHIP R 1.0K J 1/16W
R409 RK73HB1J100J CHIP R 10 J 1/16W
25
NX-420
TX-RX UNIT (X57-8370-10)
Ref. No.
R410 RK73HB1J473J CHIP R 47K J 1/16W
R411 RK73HB1J470J CHIP R 47 J 1/16W
R412 RK73HB1J102J CHIP R 1.0K J 1/16W
R413 RK73HH1J393D CHIP R 39K D 1/16W
R414 RK73HH1J473D CHIP R 47K D 1/16W
Ad dress
New
parts
Parts No. Description
PARTS LIST
Destination
Ref. No.
R514 RK73HB1J471J CHIP R 470 J 1/16W
R515 RK73GB2A000J CHIP R 0 J 1/10W
R516 RK73HH1J394D CHIP R 390K D 1/16W
R517 RK73HH1J154D CHIP R 150K D 1/16W
R518 RK73HB1J103J CHIP R 10K J 1/16W
Ad dress
New
Parts No. Description
parts
Destination
R415 RK73HB1J100J CHIP R 10 J 1/16W
R416 RK73HB1J106J CHIP R 10M J 1/16W
R417 RK73HH1J474D CHIP R 470K D 1/16W
R418 RK73HB1J106J CHIP R 10M J 1/16W
R419,420 RK73HB1J000J CHIP R 0 J 1/16W
R421 RK73HH1J121D CHIP R 120 D 1/16W
R422 RK73HH1J391D CHIP R 390 D 1/16W
R423 RK73HB1J473J CHIP R 47K J 1/16W
R424 RK73HB1J683J CHIP R 68K J 1/16W
R425 RK73HB1J103J CHIP R 10K J 1/16W
R426 RK73HB1J104J CHIP R 100K J 1/16W
R427 RK73HB1J000J CHIP R 0 J 1/16W
R428 RK73HB1J102J CHIP R 1.0K J 1/16W
R429 RK73HB1J000J CHIP R 0 J 1/16W
R430 RK73HB1J224J CHIP R 220K J 1/16W
R431 RK73HB1J124J CHIP R 120K J 1/16W
R432 RK73HB1J183J CHIP R 18K J 1/16W
R433 RK73HB1J222J CHIP R 2.2K J 1/16W
R434,435 RK73HB1J000J CHIP R 0 J 1/16W
R436 RK73HB1J104J CHIP R 100K J 1/16W
R438 RK73HB1J823J CHIP R 82K J 1/16W
R439,440 RK73HB1J473J CHIP R 47K J 1/16W
R441 RK73HB1J104J CHIP R 100K J 1/16W
R442 RK73HB1J152J CHIP R 1.5K J 1/16W
R444,445 RN73HH1J221D CHIP R 220 D 1/16W
R446 RK73HB1J474J CHIP R 470K J 1/16W
R447 RN73HH1J220D CHIP R 22 D 1/16W
R449 RK73HB1J104J CHIP R 100K J 1/16W
R450 RK73HB1J000J CHIP R 0 J 1/16W
R451 RN73HH1J220D CHIP R 22 D 1/16W
R520-522 RK73HB1J474J CHIP R 470K J 1/16W
R523 RK73GB2A1R0J CHIP R 1 J 1/10W
R524 RK73HB1J272J CHIP R 2.7K J 1/16W
R526 RK73HB1J474J CHIP R 470K J 1/16W
R527-530 RK73HB1J104J CHIP R 100K J 1/16W
R531 RK73HB1J000J CHIP R 0 J 1/16W
R532 RK73HB1J102J CHIP R 1.0K J 1/16W
R533-536 RK73HB1J474J CHIP R 470K J 1/16W
R538 RK73HB1J474J CHIP R 470K J 1/16W
R541 RK73HB1J103J CHIP R 10K J 1/16W
R542 RK73HB1J474J CHIP R 470K J 1/16W
R543 RK73HB1J103J CHIP R 10K J 1/16W
R545 RK73HB1J000J CHIP R 0 J 1/16W
R600-602 RK73HB1J000J CHIP R 0 J 1/16W
R604 RK73HB1J102J CHIP R 1.0K J 1/16W
R605 RK73HB1J104J CHIP R 100K J 1/16W
R606 RK73HB1J102J CHIP R 1.0K J 1/16W
R607 RK73HB1J563J CHIP R 56K J 1/16W
R609 RK73HB1J101J CHIP R 100 J 1/16W
R610,611 RK73HB1J000J CHIP R 0 J 1/16W
R612 RK73HB1J103J CHIP R 10K J 1/16W
R613-615 RK73HB1J101J CHIP R 100 J 1/16W
R616 RK73HB1J103J CHIP R 10K J 1/16W
R617,618 RK73HB1J472J CHIP R 4.7K J 1/16W
R619 RK73HB1J101J CHIP R 100 J 1/16W
R620 RK73HB1J823J CHIP R 82K J 1/16W
R621 RK73HB1J563J CHIP R 56K J 1/16W
R622 RK73HB1J184J CHIP R 180K J 1/16W
R623 RK73HB1J474J CHIP R 470K J 1/16W
R624 RK73HB1J223J CHIP R 22K J 1/16W
R452 RK73HB1J474J CHIP R 470K J 1/16W
R453 RK73HB1J102J CHIP R 1.0K J 1/16W
R454 RK73HB1J101J CHIP R 100 J 1/16W
R455 RK73HB1J473J CHIP R 47K J 1/16W
R456 RK73HB1J104J CHIP R 100K J 1/16W
R458,459 RK73HB1J101J CHIP R 100 J 1/16W
R460 RK73HB1J000J CHIP R 0 J 1/16W
R462,463 RK73HB1J101J CHIP R 100 J 1/16W
R464 RK73HB1J103J CHIP R 10K J 1/16W
R465 RK73HB1J682J CHIP R 6.8K J 1/16W
R466 RK73HB1J271J CHIP R 270 J 1/16W
R467 RK73HB1J331J CHIP R 330 J 1/16W
R469 RK73HB1J222J CHIP R 2.2K J 1/16W
R470,471 RK73HB1J000J CHIP R 0 J 1/16W
R500 RK73HH1J274D CHIP R 270K D 1/16W
R501 RK73GB2A000J CHIP R 0 J 1/10W
R502 RK73HH1J184D CHIP R 180K D 1/16W
R504,505 RK73HB1J222J CHIP R 2.2K J 1/16W
R506 RK73HB1J000J CHIP R 0 J 1/16W
R507 RK73HB1J683J CHIP R 68K J 1/16W
R508 RK73GB2A2R2J CHIP R 2.2 J 1/10W
R510 RK73HB1J100J CHIP R 10 J 1/16W
R511 RK73HB1J102J CHIP R 1.0K J 1/16W
R512 RK73HH1J683D CHIP R 68K D 1/16W
R513 RK73HH1J333D CHIP R 33K D 1/16W
26
R625 RK73GB2A000J CHIP R 0 J 1/10W
R626,627 RK73HB1J103J CHIP R 10K J 1/16W
R628 RK73HB1J153J CHIP R 15K J 1/16W
R629,630 RK73HB1J100J CHIP R 10 J 1/16W
R631 RK73HB1J103J CHIP R 10K J 1/16W
R632,633 RK73HB1J472J CHIP R 4.7K J 1/16W
R634 RK73HB1J102J CHIP R 1.0K J 1/16W
R635 RK73HB1J000J CHIP R 0 J 1/16W
R638,639 RK73HB1J220J CHIP R 22 J 1/16W
R640 RK73HB1J000J CHIP R 0 J 1/16W
R641 RK73HB1J474J CHIP R 470K J 1/16W
R642 RK73HB1J000J CHIP R 0 J 1/16W
R643 RK73HB1J104J CHIP R 100K J 1/16W
R644,645 RK73HB1J102J CHIP R 1.0K J 1/16W
R646 RK73HH1J104D CHIP R 100K D 1/16W
R647 RK73HH1J103D CHIP R 10K D 1/16W
R648 RK73HB1J104J CHIP R 100K J 1/16W
R649 RK73HB1J183J CHIP R 18K J 1/16W
R650-652 RK73HB1J102J CHIP R 1.0K J 1/16W
R653 RK73HB1J474J CHIP R 470K J 1/16W
R654,655 RK73HB1J000J CHIP R 0 J 1/16W
R801 RK73HB1J000J CHIP R 0 J 1/16W
R803 RK73HB1J000J CHIP R 0 J 1/16W
R901 RK73HB1J103J CHIP R 10K J 1/16W
R902 RK73HB1J563J CHIP R 56K J 1/16W
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