Maintenance
13
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
Below each intake fan is a filter tray. Each time the fans are inspected, the filters must
also be inspected; cleaning or replacing them when necessary.
To access the filter(s), press upward firmly on the tab located on the bottom front of the
tray and pull outward.
The filters may be cleaned with water or compressed air (no greater than 60 psi 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.
Note:
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.
Air Flow
Once the display’s internal components reach a certain temperature, the fans are
activated. If the fans are not operating, they may be checked by bypassing the
temperature controls. To check the operation of the fans, open the display to expose the
thermostat. Push and hold the bypass button on the thermostat to temporarily turn on the
fans. If a fan does not rotate or does not operate smoothly, replace it.
Make sure that the intake vents and exhaust vents on the bottom front of the display
are not blocked and are free of dust or other debris. Hold a piece of lightweight paper
in front of the bottom edge (under the filter trays) of the display to detect air movement
through the vents.
Note:
When mounting the display, the entire front of the display must be exposed
to allow for proper ventilation. Aesthetic shrouding (common in monument
installations) is not advised.
Display Face Cleaning
Wet 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.
Note:
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.
Содержание VANGUARD VL-3500 Series
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