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Nautel GV40 - User Manual

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4: TROUBLESHOOTING MANUAL
GV40/GV30
T
RANSMITTER
Document ID: NHB-GV30-GV40-TRB
Version: 4.0
Issue Date: 2018-02-26
Status: Standard
Making Digital Radio Work

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Summary

GV40;GV30 Troubleshooting Manual

Contact Information

Customer Service (24-hour support)

Provides contact details for customer service, including phone numbers for Canada/USA and international.

Section 4.1: Responding to Alarms

Corrective Maintenance

Procedures for identifying and correcting transmitter defects during operation.

Electrostatic Protection

Precautions for handling static-sensitive semiconductor devices.

Identifying an Alarm

How to identify and interpret alarms via status page or front panel.

Accessing the Inside of the Transmitter

Guides on accessing internal components of the transmitter.

Troubleshooting Tips

General advice and steps for troubleshooting common issues.

Replacement Procedures

Lists procedures for replacing modules, PWBs, and cooling fans.

Troubleshooting RF Power Modules

RF Power Module Fault Validation

Process for identifying and validating defective RF power modules by checking front panel LEDs.

Operating with Defective or Missing RF Power Modules

Discusses permissible transmitter operation with defective or missing RF power modules.

Power Supply Module and LVPS Faults

Power Supply or LVPS Module Fault Validation

Validating power supply or LVPS modules by checking front panel LEDs and their states.

Operating with Defective or Missing Power Supply or LVPS Modules

Details transmitter operation with defective or missing LVPS or power supply modules.

Section 4.2: Parts Lists

Family Tree

Depicts the family tree for the equipment, identifying assemblies with Nautel configuration control numbers.

How to Locate Information About a Specific Part

Explains how to locate part information using assigned reference designation and Nautel nomenclature.

Section 4.3: Wiring;Connector Lists

Wiring Lists Provided

Wiring lists provided in tabular format, detailing non-printed wiring patterns.

Connector Mating Information

Provides connector mating tables where applicable, corresponding to wiring lists.

Section 4.4: Reading Electrical Schematics

Component Values

Defines default values for capacitors, resistors, and unidentified diodes/suppressors.

Graphic and Logic Symbols

Explains graphic symbols used on electrical schematics and logic diagrams per ANSI standards.

Reference Designations

Explains how reference designations are assigned according to ASME Y14.44-2008.

Locating Schematic Diagram(s) for a Functional Block

Guides on finding schematic diagrams for functional blocks using family trees and tables.

Section 4.5: Mechanical Drawings

Identifying Mechanical Drawings

Explains how mechanical drawings are identified by numbers prefixed with MD.

Content of Mechanical Drawings

Mechanical drawings illustrate component locations and assembly outlines with dimensional information.

Locating a Part or Assembly on a Mechanical Drawing

Guides on locating parts on mechanical drawings using reference designations and family trees.

Section 4.6: List of Terms

AUI.

Advanced User Interface - local touch screen and remote feature for transmitter control and monitoring.

VSWR.

Voltage Standing Wave Ratio - expresses reverse to forward voltage ratio on feedline/antenna.

Nautel GV40 Specifications

General IconGeneral
Output Power40 kW
Modulation TypesFM
Input Frequency50/60 Hz
Transmitter TypeSolid State
Frequency Range88 to 108 MHz
Efficiency72%

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