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Harris Gates Five 994 9204 002 User Manual

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GATES ONE - 994 9202 002
GATES TWO - 994 9203 002
GATES FIVE (1-PHASE) - 994 9204 002
GATES FIVE (3-PHASE) - 994 9205 002
T.M. No. 888-2314-001
Printed: 1990
© Copyright 1990, 1991, 1992, 1994, 1995, 1996, 1998, 1999,
2000, 2001, 2002
Rev. AF: 06-21-02
Harris Corporation
All rights reserved
TECHNICAL MANUAL
GATES Series™
AM TRANSMITTERS

Table of Contents

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Harris Gates Five 994 9204 002 Specifications

General IconGeneral
BrandHarris
ModelGates Five 994 9204 002
CategoryTransmitter
LanguageEnglish

Summary

Returns and Exchanges

Unpacking

Technical Assistance

Replaceable Parts Service

Guide to Using Harris Parts List Information

Installation and Operation

Initial Turn On Procedure

Provides a step-by-step guide for the initial power-on sequence.

Initial Turn On Steps

Details the critical steps for safely powering on the transmitter for the first time.

Maintenance Procedures

Preventive Maintenance Operations

Details the six systematic operations for preventive maintenance.

Troubleshooting

Symptom: Transmitter Will Not Turn On

Troubleshooting steps when no green LEDs on power switches are illuminated.

Possible Causes for No Power

Lists potential causes for the transmitter failing to power on.

Symptom: Contactors Do Not Energize

Troubleshooting when power LEDs are on but contactors don't engage.

Possible Causes for No Contactor Energization

Identifies reasons why contactors might not energize.

Symptom: No Power Output

Troubleshooting when contactors energize but no power output.

High Voltage Supply Failure

Diagnosing failure of the high voltage supply.

Symptom: High Voltage Present, No Power Output

Troubleshooting when high voltage is present but no power output.

PDM Kill Condition

Diagnosing the PDM kill condition preventing power output.

Possible Causes for Overloads

Lists potential causes for various overload conditions.

Supply Voltage Overload

Troubleshooting supply voltage overload.

Power Supply Current Overloads

Diagnosing current overloads at turn-on and continuous cycling.

Random Supply Current Overloads With Modulation

Addresses random current overloads during modulation.

Underdrive Fault Diagnosis

Troubleshooting underdrive faults.

VSWR Overload Issues

Diagnosing VSWR overload and continuous VSWR cycling.

Antenna Problems Affecting VSWR

Troubleshooting antenna issues causing VSWR problems.

Output Network Issues Affecting VSWR

Diagnosing output network problems affecting VSWR.

Symptom: Remote Control Functions Do Not Work

Troubleshooting issues with remote control functionality.

Possible Causes for Remote Control Failure

Lists potential causes for remote control issues.

Transmitter Overall Principles

Section G: PDM Amplifier/Pull-Up (A6-A9)

Section J: Controller Board (A12)

Overload Adjustment Procedures

Details procedures for adjusting overload thresholds.

Power Supply Current Overload Adjustment

Covers adjusting the power supply current overload threshold.

Underdrive Fault Adjustment

Explains how to adjust the underdrive fault threshold.

VSWR Detector Adjustment

Covers setting the VSWR trip threshold.

Symptom: Will Not Respond To An On Command

Troubleshooting when the controller does not respond to ON command.

Symptom: PDM Power Level Signal Cannot Be Controlled

Troubleshooting issues with controlling PDM power level.

Symptom: Multimeter Is Pinned Far Left or Right

Troubleshooting when multimeter readings are pinned.

Symptom: Some Remote Control Functions Do Not Work

Troubleshooting issues with remote control functions.

Section K: Interface Board (A24)

Symptom: Power LEDs On, Contactors Not Energized

Troubleshooting when power LEDs are lit but contactors don't energize.

Electrostatic Discharge Control

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