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PHYSICAL HAZARD! BEFORE ATTEMPTING ANY CLEANING, REMOVE
ALL POWER. WHEN USING SOLVENTS, PROVIDE ADEQUATE
VENTILATION AND AVOID BREATHING FUMES. WHEN CLEANING WITH
AIR, WEAR SAFETY GOGGLES AND USE CLEAN, DRY COMPRESSED AIR
NOT EXCEEDING 25 PSI (1.75 KG/CM).
(AC Power Off Task) Perform the following visual inspection:
6.2.2
Air System Maintenance
The air path should be checked and cleaned with dry compressed
air every three months.
(AC Power On Test) The amplifier air flow system must be open to
ensure proper transfer of heat to the air stream created by the fan.
Periodically inspect and eliminate any air flow constraints. After
inspection and cleaning, verify that air flow is strong and
unimpeded.
Doc. 01031254 Rev. 1
a. With the AC power removed, check that all connector plugs
are properly seated in their mating connectors and have not
been damaged. Have the service technician replace any bad
connector plugs and reset any that are dislodged.
b. Inspect cables for signs of discolored, broken, or bad
insulation. Have a service technician repair or replace as
needed.
c. Look for signs of dirt or moisture contamination, which can
cause short-circuiting, arcing, corrosion, or overheating.
Clean contaminated areas with a lint-free cloth, a small
vacuum cleaner, or a compressed-air blower at low pressure.
d. Inspect all waveguide for discoloration, cracks, loose
connectors, and improper sealing. Have a service technician
tighten or replace waveguide as required.
e. Check for other defects. These include, but are not limited
to, wear, breakage, deterioration, fungus, excess moisture,
and mounting integrity. Contact your service technician for
repairs.
M P A H U B M O U N T
6-3
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