Daktronics Galaxy AF-3220 - Manual (Page 17)

Maintenance 13
Section 6: Maintenance
Note: Turn off power before doing any repair or maintenance work on the display.
Figure 7 shows the typical location of internal components. Actual locations may vary slightly depending on the size
of the display. The quick-connect to mirror display is only present in two-view (2V) displays.
6.1 Display Access
Open the face panel to access the interior of a display, as shown in
Figure 8. To access the interior of the display, perform the following
steps:
1. Turn off power to the display.
2. Locate the access latches 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 hold the door
open. Caution: The door swings upward. Take extra precautions during windy conditions.
4. To close, lower the face panel and turn the latches a quarter turn
clockwise. Be sure to fully latch all fasteners to provide a
watertight seal.
6.2 Ventilation System Maintenance
Fans
Ventilation fans are located inside the display. Air is pulled in from bottom
venting slots and exhausted out the back of the display.
Check fans and vents every time the display is opened. Check the fans by
pressing the bypass switch located on the thermostat as shown in
Figure 9.
UPPER LOWER 1 2 3 4 5 6
78 C D EF 9A B 0  1 2 3 4 5 6
78 C D EF 9A B 0

Power
Supplies
Thermostat
Fan Fan
Controller
Power
Termination
Panel
Quick Connects Quick Connects
Filters
Figure 7: Internal Component Locations
Modules
Door
Support
Internal
Components
►
►
▲
Figure 8: Open Face Panel
Thermostat
Bypass
Switch
Figure 9: Thermostat and Bypass
Switch