User's Manual

Digital ATSC Exciter-Modulator System Chapter 5 Maintenance
Axcera Axciter, Rev. 0 51
Chapter 5: Maintenance
Maintenance
The Axciter is designed with components that require little or no periodic
maintenance except for the routine cleaning of the fan and the front panels
of the trays.
The amount of time between cleanings depends on the conditions within the
transmitter room. While the electronics have been designed to function
even if covered with dust, a heavy buildup of dust, dirt, or insects will affect
the cooling of the components. This could lead to a thermal shutdown or
premature failure of the affected trays.
When the front panels of the trays become dust-covered, the top covers
should be removed and any accumulated foreign material should be
removed. A vacuum cleaner, utilizing a small wand-type attachment, is an
excellent way to suction out the dirt. Alcohol and other cleaning agents
should not be used unless you are certain that the solvents will not damage
the components or the silk-screened markings on the trays and the boards.
Water-based cleaners can be used, but do not saturate the components.
The fans and heatsinks should be cleaned of all dust or dirt to permit the
free flow of air for cooling purposes.
It is recommended that the operating parameters of the system be
recorded from the LCD display screen at least once a month. It is
suggested that this data be retained in a rugged folder or envelope.
Photocopies of the log sheet should be made for future data entries.