Daktronics Galaxy AF-3400 Series, Display Manual

Page: 39 / 93

4.4 Display Access
Daktronics Galaxy 46 mm, AF-3400 series RGB displays are front accessible
meaning access to the internal components can be gained only from the front of the
display.
1. Locate the latch access fasteners on the module (one is centered below the
second row of pixels and one is centered above the bottom two rows).
2. With a 1/8" hex wrench, turn both
latch access fasteners a quarter turn
counterclockwise to open, as shown
in
Figure 26, and clockwise to
close.
Figure 26: Removing a Module
3. Gently pull the module far enough
forward to reach behind the back
and disconnect the power and
ribbon cables.
When installing a module, reverse the
previous steps and take note of the following
points.
•
The weather-stripping on the back edge of the module must be intact and in
good condition so it prevents water from seeping into the display.
•
The module latches must be fully engaged to create a watertight seal around the
edge of the module. The module should be firmly seated against the display
when the latches are fully engaged.
The module and driver board are a single functional unit. Each module assembly is
made up of a module housing (containing LEDs and the driver) and a louver
assembly.
Figure 27 shows the location of several basic components inside the
display. The placement may vary slightly depending on the height of the display.
Refer to this figure for additional troubleshooting component locations. The module
and driver board are a single functional unit. Each module assembly is made up of a
module housing (containing LEDs and the driver) and a louver assembly.
Maintenance and Troubleshooting
4-5