Kenwood NX-5300 F2 User Manual

SERVICE MANUAL
COPYRIGHT © 2014 JVC KENWOOD Corporation
No.RA015<Rev.001>
2014/10
B5B-7154-00
UHF DIGITAL TRANSCEIVER
RA015<Rev.001>201410SERVICE MANUALB5B-7154-00
NX-5300
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 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-24
4 ADJUSTMENT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-31
5 TROUBLESHOOTING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-64
NX-5300 F3,F6,K3,K6NX-5300 F2,F5,K2,K5
T
his product complies with the RoHS directive for the European market.
This product uses Lead Free solder.

Kenwood NX-5300 F2 Specifications

General

Zones	128
Operating Voltage	7.5V DC ±20%
Digital Protocol	NXDN, DMR
GPS	Yes
Bluetooth	Yes
Ingress Protection	IP67
IP Rating	IP67
Operating Temperature	-30°C to +60°C
Frequency Range	450-520 MHz
Power Output	5W
Channel Spacing	12.5 kHz, 25 kHz
Battery Life (Digital)	Up to 14 hours
Battery Life (Analog)	Up to 11 hours
Display	Color LCD
MIL-STD	MIL-STD-810 C/D/E/F/G
Output Power (UHF)	4W
Modulation	16K0F3E, 11K0F3E
Battery Life	14 hours (Digital), 11 hours (Analog) with KNB-45L

Summary

SECTION 1 PRECAUTION

SECTION 2 SPECIFIC SERVICE INSTRUCTIONS

2.1 SYSTEM SET-UP

Guides the setup process for the transceiver and its accessories.

SECTION 3 DISASSEMBLY

3.1 Precautions for Waterproof

Important warnings to maintain waterproof integrity during disassembly.

3.2 Disassembly Procedures

Step-by-step guides for removing knobs, cables, covers, and the main unit.

3.3 Precautions for Reassembly

Important warnings for the reassembly process.

3.3.1 Reassembly Procedures

Steps for installing packing, main unit, chassis, and covers during reassembly.

3.3.4 Assembly Information (Sheet/Cushion)

Details on ordering and using assembly sheets and cushions.

SECTION 4 ADJUSTMENT

4.1 Controls and Test Mode Setup

Overview of controls, test mode entry, features, and key operations.

4.3 Tuning Procedures and Data

Guides transceiver tuning, key operations, frequency adjustments, and item details.

4.3.6 Panel Tuning Mode Flowchart

Visual flowchart for the panel tuning mode operations.

4.4 BER Measurement and Test Equipment

Procedure for BER measurement, adjustment points, and required test equipment.

4.7 Radio Check and Common Adjustments

Details radio checks for frequency and power levels.

4.10 Receiver Section Adjustments

Details adjustments for receiver sensitivity and squelch.

SECTION 5 TROUBLESHOOTING

5.1 BGA IC Fault Diagnosis

Flowchart to diagnose issues related to BGA components.

5.2 GPS Section Failure Diagnosis

Flowchart for troubleshooting GPS functionality issues.

5.3 Bluetooth Section Failure Diagnosis

Flowchart for troubleshooting Bluetooth connectivity problems.

5.4 Replacing Main Unit

Instructions for replacing the main unit and related procedures.