Operating and Safety Instructions Chapter 1

3-kW UHF Transmitter Chapter 1, Introduction

835-3, Rev. 0 1-1

Chapter 1

Introduction

This manual explains the installation, setup, alignment, and maintenance procedures for

the 835-3 3-kW UHF transmitter. It is important that you read all of the instructions,

especially the safety information in this chapter, before you begin to install or operate

the unit.

1.1 Manual Overview

This instruction manual is divided into four chapters and supporting appendices. Chapter

1, Introduction, contains information on the assembly numbering system used in the

manual, safety, maintenance, return procedures, and warranties. The second chapter

describes the transmitter. Chapter 3 explains how to unpack, install, setup, and operate

the transmitter. Chapter 4, Detailed Alignment Procedures, provides information on

adjusting the system to achieve peak operation of the assemblies. The appendices contain

assembly and subassembly drawings and parts list.

1.2 Assembly Designation Procedure

ADC has assigned assembly numbers, such as Ax (x=1,2,3…), to all assemblies, trays,

and boards that are referenced in the text of this manual and shown on the block

diagrams and interconnect drawings provided in the appendices. These supporting

documents are arranged in increasing numerical order in the appendices. Section titles in

the text for assembly or tray descriptions or alignment procedures also indicate the

associated drawing(s) and the relevant appendix that contains the drawing. Sections

describing vendor-supplied items, such as meters and power supplies, do not contain this

information.

1.3 Safety

The UHF transmitters manufactured by the Broadcast Systems Division of ADC are

designed to be easy to use and repair while providing protection from electrical and

mechanical hazards. Listed throughout the manual are notes, cautions, and warnings

concerning possible safety hazards that may be encountered while operating or servicing

the transmitter. Please review these warnings and familiarize yourself with the operation

and servicing procedures before working on the transmitter.

Read All Instructions

– All of the operating and safety instructions should be read and

understood before operating this equipment.

Retain Manuals

– The manuals for the transmitter should be retained at the transmitter

site for future reference. We provide two sets of manuals for this purpose; one set can be

left at the office while one set can be kept at the site.

Heed all Notes, Warnings, and Cautions

– All of the notes, warnings, and cautions

listed in this safety section and throughout the manual must be followed.

Follow Instructions

– All of the operating and use instructions for the transmitter should

be followed.

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3-kW UHF Transmitter Chapter 1, Introduction Chapter 1 Introduction This manual explains the installation, setup, alignment, and maintenance procedures for the 835-3 3-kW UHF transmitter. It is important that you read all of the instructions, especially the safety information in this chapter, before you begin to install or operate the unit. 1.1 Manual Overview This instruction manual is divided into four chapters and supporting appendices.
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3-kW UHF Transmitter Chapter 1, Introduction Cleaning – Unplug or otherwise disconnect all power from the equipment before cleaning. Do not use liquid or aerosol cleaners. Use a damp cloth for cleaning. Ventilation – Openings in the cabinets and tray front panels are provided for ventilation. To ensure reliable operation of the transmitter, and to protect the unit from overheating, these openings must not be blocked.
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-kW UHF Transmitter Chapter 1, Introduction When equipment is sent to the field on loan, an MRA# is included with the unit. The MRA# is intended to be used when the unit is returned to ADC. In addition, all shipping material should be retained for the return of the unit to ADC. Replacement assemblies are also sent with an MRA# to allow for the proper routing of the exchanged hardware.