Kenwood NX-5400 User Manual

SERVICE MANUAL
COPYRIGHT © 2014 JVC KENWOOD Corporation
No.RA016<Rev.001>
2014/9
B5B-7155-00
700/800MHz DIGITAL TRANSCEIVER
RA016<Rev.001>20149SERVICE MANUALB5B-7155-00
NX-5400
COPYRIGHT © 2014 JVC KENWOOD Corporation
Note :
Lead free solder used in the board (material : Sn, Ag, In, Bi, melting point : 227 Centigrade)
TABLE OF CONTENTS
1 PRECAUTION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4
2 SPECIFIC SERVICE INSTRUCTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4
3 DISASSEMBLY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-23
4 ADJUSTMENT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-29
5 TROUBLESHOOTING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-64
NX-5400 F3,K3NX-5400 F2,K2
T
his product complies with the RoHS directive for the European market.
This product uses Lead Free solder.

Kenwood NX-5400 Specifications

General

Brand	Kenwood
Model	NX-5400
Category	Transceiver
Language	English

Summary

SECTION 1 PRECAUTION

SPECIFICATION

SECTION 2 SPECIFIC SERVICE INSTRUCTIONS

2.1 SYSTEM SET-UP

Guides the initial setup and configuration of the transceiver.

2.2 REALIGNMENT

Details the procedures for aligning and calibrating the transceiver.

2.2.1 Modes

Explains the different operating modes for service and testing.

2.3 INSTALLATION

Procedures for installing optional modules and accessories.

2.4 CIRCUIT DESCRIPTION

Explains the internal circuitry and signal paths of the transceiver.

SECTION 3 DISASSEMBLY

3.1 Precautions for Waterproof

Important warnings regarding water resistance during disassembly.

3.2 Disassembly Procedures

Detailed steps for disassembling the transceiver components.

3.3 Reassembly Precautions and Procedures

Guidelines and steps for safely reassembling the transceiver.

SECTION 4 ADJUSTMENT

4.1 Controls

Overview of the transceiver's external controls and indicators.

4.2 Panel Test Mode

Features and operations available within the panel test mode.

4.2.1 Test mode operation features

Explains how to enter and use the test mode functions.

4.2.2 Key operation

Details the key functions and operations within panel test mode.

4.3 Panel Tuning Mode

Procedures for tuning transceiver parameters using the panel interface.

4.3.1 Transceiver tuning (To enter tuning mode)

Steps to enter and initiate transceiver tuning procedures.

4.3.5 Adjustment item and Display

Lists adjustment items, their display values, and ranges.

4.6 Test Equipment Required for Alignment

List of necessary equipment for transceiver alignment.

4.9 Transmitter Section

Detailed adjustments for transmitter power and modulation.

4.10 Receiver Section

Procedures for adjusting receiver sensitivity and squelch parameters.

SECTION 5 TROUBLESHOOTING

5.1 Fault Diagnosis of the BGA (Ball Grid Array) IC

Flowchart for diagnosing BGA IC failures.

5.2 Failure diagnosis of the GPS section

Flowchart for troubleshooting GPS function issues.

5.3 Failure diagnosis of the Bluetooth section

Flowchart for troubleshooting Bluetooth connectivity problems.

5.4 Replacing Main Unit

Instructions for replacing the main circuit board unit.

PARTS LIST

Exploded view of general assembly and parts list

Visual diagram showing all transceiver components and their part numbers.

Electrical parts list

Comprehensive list of all electronic components used in the main unit.

Packing materials and accessories parts list

List of included packing materials and accessories.