Daktronics Rear-Ventilated GalaxyPro GP3 Series - Manual (Page 27)

22 Display Maintenance
5. When ready to reinstall the module, reconnect the cables, push the cables into the display so
they do not get pinched and latch the module using a 1 /
8
” hex head wrench.
Note: A fully seated module should be flush with the modules around it.
10.2 Ventilation System
GalaxyPro ® GP3 displays are equipped with a ventilation system that helps keep internal
components at operable temperatures. GalaxyPro ® GP3 displays are rear ventilated, so the
display support structure must allow adequate space or air movement for proper ventilation.
Refer to the display shop drawing for ventilation requirements.
Filter Inspection, Cleaning, and Replacement
The ventilation system includes filters that prevent dirt and debris from entering the display
cabinet. Check and replace filters regularly to ensure adequate air flow in the display. At
a minimum, check filters every six months, but more frequent inspection may be required
depending on conditions around the display.
Clean filters with water or compressed air (no greater than 60psi and at least 6” away) blown
through the filter in the opposite direction from which air normally flows. Allow filters to dry
before returning them to their trays. Again, Daktronics encourages users and service technicians
to use their own discretion when deciding whether to clean or replace the filters.
Fans
Fans help bring fresh air into the display while exhausting hot air through the upper vents. Fans
are controlled via a thermostat in the display cabinet. The thermostat is equipped with a bypass
button for testing fan operation. Replace fans that are not working properly.
10.3 Display Face Cleaning
Wet Cleaning Process
1. Turn off power to the display.
2. Mix a mild, non-abrasive, non-petroleum-based detergent and cold water, one ounce of
detergent to one gallon of cold water.
3. Saturate a light/medium duty cleaning brush with the soapy water.
4. Use horizontal brush strokes to loosen and remove dirt and grime, washing the display from
top to bottom. Use light pressure so as not to damage the LEDs. Clean only an area that is
safely within reach from a lift or stage, and then move on to the next section of modules.
5. Rinse the display face with generous amounts of cold water under low pressure. A spot-free
rinse agent can be used to reduce water spots.