Daktronics Galaxy AF-3500 Series 46 mm - Manual (Page 26)

22 Maintenance
3. Clean filters with water, or compressed air blown through the filter opposite of
normal airflow (no greater than 60 psi and at least 6" away).
4. Allow filters to dry before returning them to their trays.
Daktronics encourages users and service technicians to use their own discretion when
deciding whether to clean or replace the filters.
Note: Air draws upward through the filter. Be sure to check the bottom of the filter as this
will be the side that requires cleaning.
Fan Blades
If the display has fans, check the fan blades for dirt and debris. If necessary, clean them and
the inside of the display. Cleaning the blades ensures fan efficiency and 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.
There is also a smaller fan located on the controller enclosure cover that should always be
running.
6.4 Display Face Cleaning
Wet Cleaning Process
Tools required:
 Bucket and cold water
 Non-abrasive, non-petroleum-based detergent
 Light-/medium-duty cleaning brush
 Soft terry cloth towels
To clean the display:
1. Turn off the 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. Wash the display from top to bottom, using horizontal brush strokes to loosen and
remove dirt and grime. Use light pressure so as not to damage the LEDs. Clean only
the area safely reachable 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. Use
a spot-free rinse agent to reduce water spots.
6. Use soft, dry terry cloth to dry and remove any excess water. Take care not to
damage LEDs by catching the cloth on them.
7. Allow the display to air-dry completely for 12 hours before applying power to the
display.