Kenwood NX-3220 K User Manual

SERVICE MANUAL
COPYRIGHT © 2017 JVC KENWOOD Corporation
No.RA053<Rev.001>
2017/6
B5B-7267-00
VHF DIGITAL TRANSCEIVER, UHF DIGITAL TRANSCEIVER
RA053<Rev.001>20176SERVICE MANUALB5B-7267-00
NX-3220, NX-3320
COPYRIGHT © 2017 JVC KENWOOD Corporation
TABLE OF CONTENTS
1 PRECAUTION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-7
2 SPECIFIC SERVICE INSTRUCTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-7
3 DISASSEMBLY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-26
4 ADJUSTMENT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-31
5 TROUBLESHOOTING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-149
NX-3220, NX-3320 K,E3 NX-3220, NX-3320 K2,E2 NX-3220, NX-3320 K3,E
This product complies with the RoHS directive for the European market.
This product uses Lead Free solder.

Kenwood NX-3220 K Specifications

General

IP Rating	IP54/55
Channel Spacing	12.5 kHz / 25 kHz
Operating Voltage	7.5V DC ±20%
Digital Protocol	NXDN
Power Output	5W
Modulation	16K0F3E, 11K0F3E
Frequency Range	136-174 MHz

Summary

Service Instructions and Procedures

System Set-Up

Details transceiver types, frequency ranges, RF power, LCD, and DTMF keypad options for setup.

Realignment Procedures

Explains different operating modes like user, panel test, PC mode, and firmware programming.

PC and Firmware Programming

Details PC mode operations, KPG-22U cable, programming software, and firmware updates.

Transceiver Cloning and Front Panel Programming

Key service functions for data transfer and on-device configuration.

Disassembly Procedures

Waterproof and General Disassembly Precautions

Covers essential precautions before and during disassembly to maintain waterproof integrity.

Chassis and Component Removal

Details steps for removing the chassis, holder, and display unit from the transceiver.

TX-RX Unit and Top Packing Removal

Covers steps for removing the TX-RX unit and TOP packing from the transceiver.

Terminal Block, LCD, and FPC Removal

Details steps for removing the terminal block, LCD, and handling FPC connections.

Adjustment Procedures

NX-3220 Controls and Panel Test Mode

Describes controls, test mode entry, and button functions for NX-3220 models.

Panel Tuning Mode Operation

Details how to enter tuning mode and button functions for adjustment.

Reference Level Adjustments and Supplements

Adjustment Item Details

Detailed Adjustment Items and Ranges

Lists all adjustable parameters with their display names and adjustment ranges.

Panel Tuning Mode Flowchart

Adjustment Points and Required Test Equipment

Identifies specific adjustment points and necessary test equipment for alignment.

Common and Transmitter Adjustments

Transmitter Deviation Adjustments

Transmitter Deviation and Battery Warning Adjustments

Transmitter CWID and Battery Warning Adjustments

Necessary Deviation Items by Signaling Mode

Receiver Adjustments

Receiver High RSSI and Other Adjustments

High RSSI Adjustment

Model-Specific Controls and Test Modes

NX-3220 (E, E2, E3) Controls and Panel Test Mode

Details controls and panel test mode operations for E, E2, E3 models.

NX-3320 (K, K2, K3) Controls and Panel Test Mode

Details controls and panel test mode operations for K, K2, K3 models.

NX-3320 (E, E2, E3) Controls and Panel Test Mode

Panel Tuning Mode (K2, K3 Types) Operations

Details transceiver tuning entry and button operations for K2/K3 models.

Panel Tuning Mode (E, E2 Types) Operations

Panel Tuning Mode (K2, K3 Types) Adjustment Items

Panel Tuning Mode: Adjustment Items and Display Ranges

Lists adjustment items, their display names, and adjustment ranges.

Reference Level Adjustments and Supplements (E, E2, E3 Types)

Panel Tuning Mode Details

Panel Tuning Mode: Adjustment Items and Display Ranges (E, E2, E3 Types)

Panel Tuning Mode Flowchart (E, E2, E3 Types)

Adjustment Points and Test Equipment

Adjustment Points and Test Equipment (TX-RX Unit XC1-180)

Identifies specific adjustment points and necessary test equipment for the TX-RX unit.

Radio Check Procedures and Accessories

Common Adjustments (Setting, LCD Contrast)

VCO Assist and Frequency Adjustments

Transmitter and Receiver Adjustments

Deviation Adjustments (NXDN, DMR, QT)

Deviation Adjustments (QT, DQT, LTR, DTMF)

Deviation and Battery Warning Adjustments

Receiver Adjustment Details

Receiver AF Level and IQ Phase Adjustments

Receiver RSSI Reference Adjustments

Receiver Squelch Open Adjustments

Squelch Tight and Low RSSI Adjustments

Panel Tuning Mode Flowcharts

Panel Tuning Mode Flowchart (K2, K3 Types)

Transmitter Adjustments

Transmitter Power Adjustments

Covers high, medium, and low transmit power adjustments.

Transmitter Ramp Offset and Balance Adjustments

Details adjustments for ramp offset and modulation balance.

Transmitter Maximum Deviation Adjustments

Details maximum deviation adjustments for analog wide 5k.

Deviation Adjustments (DMR, QT, LTR, DTMF)

Deviation Adjustments (DMR, QT)

Battery Warning and Deviation Item Summary

Battery Warning Adjustments

Necessary Deviation Items by Signaling Mode (Transmitter)

Troubleshooting Procedures

BGA IC Fault Diagnosis Flowchart

Provides a step-by-step diagnosis for BGA IC issues.

GPS Section Failure Diagnosis

Flowchart to diagnose issues with the GPS functionality.

Bluetooth Section Failure Diagnosis

Flowchart to diagnose issues with the Bluetooth functionality.

VCO Section Failure Diagnosis (NX-3220)

Flowchart and circuit diagram for diagnosing VCO section issues in NX-3220.

Parts List and Diagrams

Block Diagram (Display Unit)

Parts List Overview

Lists the contents of the parts list section, including exploded views and electrical parts.

Exploded View of General Assembly