Nautel XR6 Programming manual

XR6/XR3 Transmitter
Troubleshooting Manual
Document:XR6/XR3-TROUBLESHOOT
Issue: 3.12014-05-07
Status: Standard

Nautel Limited
10089 Peggy’s Cove Road
Hackett’s Cove, NS Canada B3Z 3J4
Phone: [phone] or
Toll Free: +1.877.6NAUTEL (6628835) (Canada & USA only)
Fax: [phone]
Nautel Inc.
201 Target Industrial Circle
Bangor, Maine USA 04401
Phone: [phone]
Fax: [phone]
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 2009 NAUTEL. All rights reserved.

XR6/XR3 Troubleshooting Manual Table of contents
Page v
Contents
About this manual ix
About safety xiii
Safety precautions xv
Responding to alarms 1-1
Corrective maintenance 1-1
Electrostatic protection 1-3
Identifying an alarm 1-4
Responding to alarms 1-8
Removing and reinstalling RF power modules 1-20
Troubleshooting RF power modules 1-24
Exciter panel and PWB removal / replacement 1-36
RF Drive Buffer PWB replacement 1-40
Distribution PWB replacement 1-41
RF Drive Power Supply assembly replacement 1-42
Low Voltage Power Supply assembly replacement 1-42
+24 Volt Power Supply assembly replacement 1-43
Fan Power Supply assembly replacement 1-44
RF Power Module assembly replacement 1-45
Detailed Circuit Descriptions 2-1
Control/display PWB (NAPC147D) 2-1
RF synthesizer PWB (NAPE70C) 2-4
Interphase PDM driver PWB (NAPM10B) 2-8
Remote interface PWB (NAPI83/01A) 2-13
RF drive power supply PWB (62 V) (NAPS10B) 2-18

XR6/XR3 Troubleshooting Manual Table of contents
Page vi Issue 3.0 2009-07-15
RF power module (NAP34A) 2-19
RF drive buffer PWB (NAPE77A/01) 2-30
Parts Lists 3-1
Family tree 3-1
How to locate information about a specific part 3-1
Column content 3-2
OEM code to manufacturer’s cross-reference 3-3
Common abbreviations/acronyms 3-4
Wiring/connector lists 4-1
Wiring lists provided 4-1
Wiring lists not provided 4-1
Connector mating information 4-1
Wire colours 4-1
Printed wiring board patterns 4-1
Reading Electrical Schematics 5-1
Component values 5-1
Graphic symbols 5-1
Logic symbols 5-1
Reference designations 5-1
Unique symbols 5-2
Identifying schematic diagrams 5-2
Structure of schematics 5-3
Locating schematic diagram for a functional block 5-3
Locating a part or assembly on a schematic 5-4
Mechanical Drawings 6-1
Introduction 6-1
Locating assembly detail drawings 6-1
Content of mechanical drawings 6-1

XR6/XR3 Troubleshooting Manual Table of contents
Issue 3.0 2009-07-15 Page vii
List of terms 7-1
Index IX-1

XR6/XR3 Troubleshooting Manual Table of contents
Page viii Issue 3.0 2009-07-15

XR6/XR3 Troubleshooting Manual
Issue 3.0 2009-07-15 Page ix
About this manual
This manual provides troubleshooting information for the XR6/XR3 transmitter. It is intended for
use by field technicians. This manual allows the troubleshooting technician to diagnose a fault to the
system level, using alarm response procedures, parts lists, wiring lists, and electrical schematics.
Electrical schematics and mechanical drawings are included at the end of the manual.
Performing procedures
When using procedures in this manual, perform each step in sequence.
• If you are asked to see another section of this manual, or another document, refer to that
section or document for additional information, then continue the procedure.
• If you are asked to go to another step within the procedure, jump directly to that step with-
out performing the intervening steps.
• If you are asked to go to another section or document, stop the procedure and perform the
tasks described in the other section or document.
• If you are asked to check a voltage, use a digital voltmeter and test the voltage relative to
ground (unless otherwise instructed).
• If you are asked to check a signal, use an oscilloscope and test the signal relative to ground
(unless otherwise instructed).
Technical support
Nautel offers technical support to customers over the Internet and by telephone. Nautel’s customer
support team will answer your questions and work with you to identify and resolve problems.
For technical support, call the Customer Support Team at 902-823-3900 or - in U.S.A. and Canada
only - call toll free at 1-877-6NAUTEL (662-8835). Or find us on the Internet at http://
www.nautel.com.
For parts and tools information, see “Parts and tools” on page 12-1 of the XR6/XR3 Pre-Installation
Manual.
For accessories or spares, see “Accessories” on page 10-1 of the XR6/XR3 Pre-Installation Manual.

XR6/XR3 Troubleshooting Manual
Page x Issue 3.0 2009-07-15
For standard warranty information, see “Pre-installation assistance” on page 11-1 of the
XR6/XR3 Pre-Installation Manual.
For extended warranty information, see “Pre-installation assistance” on page 11-1 of the
XR6/XR3 Pre-Installation Manual.
XR6/XR3 transmitter manuals
The XR6/XR3 documentation suite includes the following documents:
XR6/XR3 Pre-installation Manual, XR6/XR3-PREINST. The Pre-installation Manual provides
instructions and reference information needed when planning and preparing for the installation of an
XR6/XR3 transmitter.
Nautel Site Protection Manual. The Site Protection Manual provides detailed information
about protecting your site from lightning-related hazards.
XR6/XR3 Installation Manual, XR6/XR3-INST. The Installation Manual provides instructions
and reference information needed when installing an XR6/XR3 transmitter.
XR6/XR3 Operating and Maintenance Manual, XR6/XR3-OPS-MAINT. The Operating and
Maintenance Manual provides instructions for operating, maintaining and troubleshooting
an XR6/XR3 transmitter. It also provides reference information needed when performing diagnostic
procedures.
XR6/XR3 Troubleshooting Manual, XR6/XR3-TROUBLE. The Troubleshooting Manual
provides detailed technical information about the XR6/XR3 transmitter, including electrical
schematics and mechanical drawings.
Nautel website / Online resources
The Nautel website provides useful resources to keep you up to date on your XR6/XR3.
Nautel User Group (NUG)
The website includes a special section that customers can log into in order to access the Nautel
customer newsletter, product manuals, frequently asked questions (FAQ), information sheets, and
information about field upgrades. Registration is available online and is required.