Daktronics GPR-12EV-RGB - Manual (Page 31)

Maintenance 25
To access the filter medium, remove
the fan assembly by turning the two
upper latches and pulling out from
the top as show in Figure 27.
The filters may be cleaned with
water or compressed air 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.
Air is drawn upward through the
filter. Be sure to check the bottom of
the filter as this will be the side that
requires cleaning.
Vents
Make sure that the lower intake
vents and upper exhaust vents of the
display are not blocked and are free
of dust or other debris. Hold a piece
of lightweight paper under the vents
to detect air movement through the
vents.
6.4 Display Face Cleaning
Wet Outdoor Cleaning Process
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. 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.
Figure 27: Removing Fan Assembly
Figure 28: Removing Filter Medium