Nautel NX50 Programming manual

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NX50 Transmitter

Troubleshooting Manual

Document:NHB-NX50-TRB

Issue: 6.0 2019-04-01

Status: Standard

Nautel Limited

10089 Peggy’s Cove Road

Hackett’s Cove, NS Canada B3Z 3J4

Phone: +1.902.823.3900 or

Toll Free: +1.877.6NAUTEL (6628835) (Canada & USA only)

Fax: +1.902.823.3183

Nautel Inc.

201 Target Industrial Circle

Bangor, Maine USA 04401

Phone: +1.207.947.8200

Fax: +1.207.947.3693

Customer Service (24 hour support)

+1.877.628.8353 (Canada & USA only)

+1.902.823.5100 (International)

Email: [email protected]

Web: www.nautel.com

The comparisons and other information provided in this

document have been prepared in good faith based on publicly

available information. The reader is encouraged to consult the

respective manufacturer's most recent published data for

verification.

© Copyright 2019 NAUTEL. All rights reserved.

NX50 Troubleshooting Manual Table of contents

Page v

Contents

Release control record ix

Responding to alarms 1-1

Corrective maintenance 1-1

Electrostatic protection 1-3

Identifying an alarm 1-5

Troubleshooting an alarm 1-7

Accessing the Inside of the Transmitter 1-42

Troubleshooting Tips 1-43

Removing and reinstalling RF power modules 1-51

Troubleshooting RF power modules 1-56

Control/interface PWB replacement 1-64

Remote interface PWB replacement 1-66

Digital AM exciter PWB replacement 1-66

GPS Sync PWB replacement 1-71

USB Audio Interface PWB replacement 1-71

Exgine PWB replacement 1-72

PDM Drive Distribution PWB replacement 1-73

RF drive distribution PWB replacement 1-74

Rack Interface PWB replacement 1-76

SCR Rectifier Inspection/Replacement 1-78

Rectifier Fan Inspection/Replacement 1-80

Low Voltage Power Supply Replacement 1-81

RF Power Module Fan Tray replacement 1-84

RF Power Module Fan Tray Cooling Fan replacement 1-85

Touchscreen Monitor Replacement 1-86

Single Board Computer (SBC) Replacement 1-87

Arc Detector UV Sensor Replacement 1-90

NX50 Troubleshooting Manual

Page vi Issue 6.0 2019-04-01

RF Voltage Probe Replacement 1-93

RF Current Probe Replacement 1-95

Parts Lists 2-1

Parts information 2-1

Family tree 2-1

How to locate information about a specific part 2-1

Column content 2-2

Common abbreviations/acronyms 2-4

Wiring/connector lists 3-1

Wiring lists provided 3-1

Wiring lists not provided 3-1

Connector mating information 3-1

Wire colours 3-1

Printed wiring board patterns 3-1

Reading Electrical Schematics 4-1

Component values 4-1

Graphic symbols 4-1

Logic symbols 4-1

Reference designations 4-1

Unique symbols 4-2

Identifying schematic diagrams 4-2

Structure of schematics 4-2

Locating schematic diagram(s) for a functional block 4-3

Locating a part or assembly on a schematic 4-3

NX50 Troubleshooting Manual

Issue 6.0 2019-04-01 Page vii

Mechanical Drawings 5-1

Identifying mechanical drawings 5-1

Content of mechanical drawings 5-1

List of terms 6-1

NX50 Troubleshooting Manual

Page viii Issue 6.0 2019-04-01

NX50 Troubleshooting Manual

Issue 6.0 2019-04-01 Page ix

Release control record

Issue Date Reason

6.0 2019-04-01 Supports release 6 of hardware (NARA53E) and

software version NX SW 4.7 or higher.

NX50 Troubleshooting Manual

Page x Issue 6.0 2019-04-01