Nautel VS2.5 Manuale di programmazione
VS2.5 Transmitter
Troubleshooting Manual
Document:NHB-VS2.5-TRB-4.0
Issue: 4.0 2012-12-01
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 2012+ NAUTEL. All rights reserved.
VS2.5 Troubleshooting Manual Table of contents
Page v
Contents
Release control record ix
About this manual xi
About safety xv
Safety precautions xvii
Responding to alarms 1-1
Corrective maintenance 1-1
Electrostatic protection 1-3
Identifying an alarm 1-4
Troubleshooting tips 1-25
Operating with defective PAs or cooling fans 1-26
Replacing a suspect PWB, power supply or fan 1-27
PA PWB replacement 1-29
Pre-amp/IPA PWB replacement 1-30
Power Supply Module Replacement 1-33
+48 V Power Supply Replacement 1-34
Cooling fan replacement - fans 3 (B3) through 7 (B7) 1-35
Cooling fan replacement - fans 1 (B1) and 2 (B2) 1-37
Exciter/Control PWB Replacement 1-39
PS Distribution PWB Replacement 1-42
Combiner Interface PWB Replacement 1-43
VS2.5 Troubleshooting Manual Table of contents
Page vi Issue 4.0 2012-12-01
Detailed Circuit Descriptions 2-1
Exciter/control PWB (NAPE87) 2-1
PS distribution PWB (NAPS43A) 2-2
Pre-amp/IPA PWB (NAPA28B) 2-3
Power amplifier PWB (NAPA31B) 2-4
Parts Lists 3-1
Parts information 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 5-2
Locating schematic diagram(s) for a functional block 5-3
Locating a part or assembly on a schematic 5-3
VS2.5 Troubleshooting Manual Table of contents
Issue 4.0 2012-12-01 Page vii
Mechanical Drawings 6-1
Identifying mechanical drawings 6-1
Content of mechanical drawings 6-1
Locating a part or assembly on a mechanical drawing 6-1
List of terms 7-1
VS2.5 Troubleshooting Manual Table of contents
Page viii Issue 4.0 2012-12-01
VS2.5 Troubleshooting Manual
Issue 4.0 2012-12-01 Page ix
Release control record
Issue Date Reason
4.0 2012-12-01 Release 4 of manual (NARF66C and NARF66C/01).
CE compliant.
VS2.5 Troubleshooting Manual
Page x Issue 4.0 2012-12-01
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