Harris DiamondCD Series, Техническое руководство

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5-2 888-2463-001 3/6/08
WARNING: Disconnect primary power prior to servicing.
Diamond Series™
Section 5 Maintenance and Alignments
Printed circuit board edge connectors may be cleaned using a commercial cleaner such
as Cramolin. Apply a small amount of the cleaner to the contacts, then remove it with a
clean, lint-free cloth. Do not use a pencil eraser to clean contacts, as gold or silver
contact plating will be removed.
Inspect the RF amplifier module fins for accumulated dirt that may have gone past the
air filters. Remove using a brush and vacuum or compressed air. Do not spray any
liquids that may seep into the circuit board area.
5.2.2 Check Connections
!
WARNING:
DISCONNECT PRIMARY POWER TO THE TRANSMITTER BEFORE PERFORMING
THE FOLLOWING.
All wiring should be periodically checked for tight connections. This is most important
in the high-current circuits (cabinet AC feed, AC breaker to DC power supplies, power
supply to DC bus, DC bus to module connectors, etc.). Also check wires for lead dress
and abrasions. High-current wires may be physically jolted from their positions by
current surges at turn-on.
RF cables rarely give trouble, but should be checked for tight connection. Inspect for
signs of cables being pinched at sliding assemblies (exciter and slave controllers).
Visually inspect for discoloration due to heat, if found, determine the cause and repair
the problem.
5.2.3 Check Fans, Motors and Filters
Disposable filter media is used for the cabinet air filters. They must be changed as
necessary to allow sufficient air movement through the cabinet.
The original blower has sealed, permanently lubricated bearings. No routine service is
required. In the event an alternate supplier was used for motor replacement, check for
grease fittings on the motors. If found, lubricate motor as specified by the manufacturer.