Harris DX 25U, Техническое руководство

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Section II
Installation/Initial Turn On
2.1
Introduction
This section provides information and instructions necessary for
the installation and initial turn on of the HARRIS DX-25U
MEDIUM WAVE TRANSMITTER, including AM Stereo In-
stallation and Remote Control connections. The instructions are
given to minimize the installation time required. Care and pre-
cautionary measures are given to prevent problems or injury from
occurring during installation.
Planning and Preparation are the most important factors in a
successful, efficient, and safe installation of a new transmitter.
This section should be read thoroughly prior to installation for a
basic understanding of the operation, circuitry, and nomenclature
of the transmitter.
The transmitter equipment installation PHASES or STAGES
should be planned before the equipment arrives and a detailed
plan worked out and written down. Determine what installation
equipment and materials are supplied with the transmitter and
what equipment the station must supply. In general, a transmitter
installation requires that the following areas be addressed:
•
In a new installation, WILL THE BUILDING/TRANS-
MITTER ROOM BE COMPLETED? Electronic equip-
ment can be damaged or made inoperable by dust and dirt.
Interior walls should be in place, ceiling work should be
complete, concrete floors should be aged and well sealed.
Even a plastic covering placed over the transmitter rarely
keeps out concrete dust and plaster dust created from dry-
wall installation.
•
In a new installation, WILL ELECTRICAL POWER BE
AVAILABLE WHEN NEEDED? Often transmitter instal-
lation and checkout is held up because primary power is not
available for the transmitter.
•
In an existing facility, MUST AN EXISTING TRANSMIT-
TER REMAIN ON THE AIR during installation of the new
equipment? Plan how this is to be done to minimize off-air
time.
•
STAGING AREA. An area should be chosen and set aside
to place all boxes and crates that contain the smaller parts
and assemblies. A separate area should be used to stage all
installation material (wire, conduit and accessories, hard-
ware, etc.). Each piece of equipment should be inspected
for shipping damage. Inventory all equipment and the con-
tents of each box and compare to the packing list.
•
UNLOADING. Will the proper lifting and moving equip-
ment be available when the transmitter arrives? Will there
be enough workers to help unload the transmitter?
•
EQUIPMENT PLACEMENT. Using a station layout draw-
ing, determine equipment placement AND IN WHAT OR-
DER EQUIPMENT SHOULD BE SET IN PLACE. If
possible, lay out equipment location with lines marked on
the floor.
•
HANGING HARDWARE. Ensure that all pipe hangers,
conduit hangers, threaded rod, beam clamps, Unistrut and
Unistrut hardware is on site.
•
TOOLS. Ensure that all necessary tools will be on site when
needed. Make sure all tools are in good shape. Check
technical manuals for the transmitter and other equipment
to see if specialized tools are required. Make arrangements
to obtain them if necessary.
•
During the various stages of installation different personnel
may be employed, (i.e. contractors, hired help, general
labor). Since they may not be involved in the initial turn on
of the transmitter it is vital that their work be closely
supervised and checked to avoid any damage or failures to
equipment. It is extremely important to prevent debris,
especially metal filings and hardware, from getting dropped
and lodged into the subassemblies of the transmitter.
2.2
Delivery And Storage
The DX-25U is normally delivered mounted on shipping skids.
Smaller components are shipped in cardboard cartons. Any ob-
vious damage should be noted at the time of receipt and claims
filed with the carrier.
Equipment capable of handling a 3,000 pound (1,320 Kg) load
will be needed to unload the transmitter. Extreme care should be
taken during the unloading operation to prevent injury to person-
nel or damage to the equipment.
If the transmitter is to be temporarily stored, all units require
inside storage. Do not stack items except for small cardboard
cartons. The storage area should be dry and clean.
2.3
Returns And Exchanges
Damaged or undamaged equipment should not be returned un-
less a Return Authorization is issued. When communicating with
Harris Corporation, Broadcast Division, specify the order
number or invoice number. Include complete details regarding
circumstances and reasons for return in the request. Custom or
special order equipment is not returnable. In instances where
return or exchange of equipment is at the request or convenience
of the customer, a restocking fee will be charged. Special ship-
ping instructions and coding will be provided to insure proper
handling. All returns will be sent freight prepaid and properly
insured by the customer.
2.4
Unpacking
Carefully unpack the transmitter and save all packing material.
Inspect thoroughly for any damage incurred in shipment. Retain
all PACKING CHECK LISTS to help locate and identify any
components or assemblies removed for shipping. Remove any
shipping supports, and straps prior to initial turn on.
Rev. AA: 8/9/2000 888-2297-002 2-1
WARNING: Disconnect primary power prior to servicing.