Operating and Safety Instructions Chapter 1

100 Watt High Band VHF Transmitter Chapter 1, Introduction
420A, Rev. 0 1-1
Chapter 1
Introduction
This manual explains the installation,
setup, alignment, and maintenance
procedures for the 420A 100 Watt High
Band VHF 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 an appendix. Chapter
1, Introduction, contains information on
safety, maintenance, return procedures,
and warranties. The second chapter
describes the transmitter and includes
discussions on system control and status
and remote control connections. Chapter
3 explains how to unpack, install, setup,
and operate the transmitter. Chapter 4,
Detailed Alignment Procedures, provides
information on adjusting the system
assemblies for optimal operation. The
appendix contains assembly drawings for
the system.
1.2 Safety
The 100-watt VHF transmitters
manufactured by the Broadcast Systems
Division of ADC Telecommunications are
designed for ease of 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 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.
Cleaning – Unplug or otherwise
disconnect 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,
and to protect the unit from overheating,
these openings must not be blocked.
Servicing – Do not attempt to service
this product yourself until becoming
familiar with the equipment. If in doubt,
refer all servicing questions to qualified
ADC Telecommunications service
personnel.
Replacement Parts – When
replacement parts are used, be sure that
the parts have the same functional and
performance characteristics as the
original part. Unauthorized substitutions
may result in fire, electric shock, or other
hazards. Please contact the ADC
Telecommunications Technical Service
Department if you have any questions
regarding service or replacement parts.