Daktronics Galaxy AF-3500 Series Double Face - Manual (Page 17)

Maintenance 13
Section 6: Maintenance
Important Notes: Power must be turned OFF before any repair or maintenance work is done on the display.
Only a qualified individual should service internal electronic components.
Daktronics Galaxy ® AF-3500 series displays are front accessible, meaning that access to the internal components
is gained by removing the front modules of the display. Figure 11 shows the approximate location of internal
components.
6.1 Proper Ladder Use
A ladder can be used to access displays, although it is not preferable. If a
ladder must be used, do not place the ladder directly against the display
face. The pressure from the two ladder ends, even when covered with pads,
is too concentrated and can damage the LEDs and louvers.
Instead, use a padded or carpeted board across the top of the ladder to
distribute the weight of the ladder evenly when placed against the display
face, as shown in
Figure 12. The padded board should be wide enough to
spread the weight of the ladder across a minimum of two modules.
Controller
Power
Termination
Panel
Power
Supplies
Fan
Light Sensor FACE A
LEFT
SIDE
RIGHT
SIDE
Signal
Inputs
J-box
Figure 11: Interior Component Locations
Figure 12: Example Ladder Board