Daktronics GPR-12EV-RGB - Manual (Page 30)

24 Maintenance
6.3 Ventilation System/Fans/Filters
GalaxyPro Revolution sectional displays are equipped with rear
ventilation systems to help keep the internal components at
operable temperatures. Intake fans bring air into the display
through filtered lower vents while upper vents exhaust warm air.
Figure 25 provides an example of the display’s airflow.
Frequency of Inspection
Fans should be checked every time the display is opened or at a
minimum of once every three months. Check more often if the
display is located in a dusty or harsh environment, such as along a
gravel road.
The frequency of inspection will vary greatly from display to
display as no two display setups are exactly the same. Therefore,
Daktronics advises users and service technicians to use their own
discretion when establishing an inspection schedule.
Fan Blades
Check the fan blades for dirt and debris,
cleaning them and the inside of the display if
necessary to maintain fan efficiency and to
ensure proper cooling. Spin the fan blades
with a pen or pencil to ensure that the
bearings are free and that the fan is in balance.
Filters
Filters are located at the bottom of the lower
vent. Each time the fans are inspected, the
filter medium should be checked and cleaned
if dirty or replaced if worn or torn.
Figure 25: Ventilation Airflow
Figure 26: Ventilation Fan Assembly