Technical Manual

15
MAINTENANCE
Introduction
This sections covers information regarding the maintenance of the system. In
general, the incorporation of solid-state devices makes the system an easier system
to care for as time goes on. There is basically no component in the system that has
a time limit or exhibits performance degradation as a function of time.
The Power Supply Section
The power supply section is cooled by forced air-cooling fans located in the rear
section. The reliability of the selected fans is quite high and, so far, we have not
encountered any problem in this area. Periodic examination to ensure that no build
up of any foreign material is accumulating in any area near the cooling fans is
essential.
Removing the power supply top cover for a quick examination is recommended
every year to ensure that the air flow passages are clean, that no evidence of
overheated parts is present, and that all other components are in normal operating
condition.
The Modulator Section
The modulator, in contrast to the power supply, is inside an oil environment and a
slight air movement inside the cabinet is sufficient to keep it cool. There should be
no need ever to replace the oil of the modulator.