Daktronics Galaxy AF-3200 34 mm - Manual (Page 23)

6.1 Display Access
To gain access to the interior of a display, the face panel needs to be opened. To
access the interior of the display, perform the following steps:
Figure 15: Open Face Panel
1. Turn off power to the display.
2. Locate the latch access fasteners on the face panel. With
a 5/32" hex wrench, turn the latch fasteners a quarter
turn counterclockwise.
3. Lift the face panel from the bottom. Gas springs will
hold the door open. Caution: The door will swing up.
Take extra precautions during windy conditions.
4. To close the face panel, turn the latch fasteners a quarter
turn clockwise.
6.2 Ventilation System Maintenance
Frequency of Inspection
Ventilation fans are located on the back of the display. Air is pulled in from bottom
venting slots and exhausted out the back of the display (Figure 16).
Fans and vents should be checked every time the display is opened or
at a minimum of annually to ensure that the display is being cooled
properly. Both should be checked more often if the display is located
in a dusty or harsh weather environment.
Maintenance 6-2
Fan Blades
Check the fan blades for dirt and debris, cleaning them and the inside
of the display if necessary. Fan blades must be kept clean 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 the fan is still in
balance.
Air Flow
To check the operation of the fans, open the display to expose the
thermostat in the top left area of the display (Figure 14). Push the
bypass button on the thermostat enclosure to temporarily turn on the
fans. If a fan does not rotate or does not operate smoothly, replace it.
Make sure that the intake and exhaust vents are not blocked and are free of dust or
other debris. Hold your hand or a piece of lightweight paper in front of the vents to
detect air movement.
Figure 16: Fans and Vents
6.3 Annual Inspection
A yearly inspection should be completed to maintain safe and dependable display
operation. The display will need to be opened to visually inspect the cabinet interior
and the components. Refer to Section 6.1 for these directions. The inspection should
address the following issues:
Inspection item Possible corrective measures
Loose bolts, screws, rivets
• Tighten or replace, as required.