Daktronics Galaxy AF-3155, Руководство пользователя, Страница: 50 / 87

Figure 37: Removing a Module
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 row.
2. With a 1/8"Allen wrench, turn the
latch access fasteners a quarter
turn as seen in
Figure 37
. The top
one should be turned clockwise
and the bottom one counter-
clockwise.
3. Pull the display module far
enough to reach around the back
and disconnect the ribbon and
power cables.
When installing a module, reverse the previous steps and take note of the following
points:
Figure 38:Control Corner Component Locations
•
The weather-stripping on the back
edge of the module must be intact
and in good condition if it is to
prevent 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.
Each module assembly is made up of a
module housing (containing LEDs and the
driver) and a louver assembly.
Power Supplies
The LED power supplies are identified as assemblies 0A-1289-4013 and
0A-1289-4014 in the
Component Layout Diagrams .
Complete the following steps to remove a power supply from the display:
Tools required: 1/8" hex wrench and #2 Phillips screwdriver
1. Remove the module directly in front of the failed power supply.
2. Disconnect and label all the wires connected to the power supply.
3. Remove the hardware holding the power supply in place to free the unit.
4. Follow these steps in reverse order to install a new power supply. Refer to
the display’s
Schematic when reconnecting the wires.
Maintenance and Troubleshooting
4-8