User's Manual
2626
Periodically check the SWR of the antennas and if this changes over time. Problems could occur more
often in poor weather conditions – rain, snow, strong wind etc.
b) Periodically (more often in a dusty environment, but at least once per year) clean the air lters
without opening the amplier.
W A R N I N G
The air lters may be too dusty - be careful how you
clean them so that you DO NOT INHALE (BREATHE IN)
neither spill the dust over! Wrap it, for instance, in a
wet cloth before cleaning!
Fig. 7-1 – Bottom view - Air lters
ACOM 1200S has two air lters that are accessible from the bottom - see Fig. 7-1. Use a Philips-1
screwdriver to remove the square lter cover from the PA air lter (1). Remove the cover and take out
gently the foam-like plastic lter. To remove the PS air lter (2) unscrew the 2 mounting screws. Using
a small at srewdriver or tweezers gently lift the lter tray away from the amplier body. Carefully clean
the lters and covers from dust, wash them with tap water and leave them to dry up before you mount
them back.
Clean also (as far as possible from outside without opening the amplier) all ventilation apertures on the
cover and the chassis, including ones at the bottom. Finally, mount the air lters in reverse order and
screw the screws tightly.