2 instructions for replacing parts, Module removal/replacement, Instructions for replacing parts – Daktronics Galaxy AF-3400 34 mm Monochrome/RGB User Manual
Page 49: Figure 37: access locations, Figure 38: removing a module, 2 for directions on open

8.2 Instructions for Replacing Parts
Module Removal/Replacement
If LEDs have failed, do not attempt to replace individual LEDs.
Return a failed module to Daktronics for replacement and/or repair.
Each module may be removed separately without moving other components of the display.
1.
Turn off power to the display.
Parts Replacement
41
2.
Release the module with the 1/8" hex wrench
as described in Section 6.1. The latch accesses
are noted in Figure 37.
3.
Disconnect the two ribbon cables from the
module, noting their connection to the back.
(Figure 38). Release ribbon cables by spreading
the tabs on the sides and then lifting the cable
head from the jack.
4.
Unplug the power cable by squeezing the tabs
on the sides of the plug head and pulling out.
5.
Connect all three cables to the new module,
making sure that the ribbon cable tabs are
tightly pushed against the cable head.
Carefully push the ribbon wires back into the cabinet so they are clear of the module
edges.
Figure 37: Access Locations
6.
Place the module into its proper location, checking that the weather stripping is in
place. Latch the module tightly both top and bottom using the hex wrench.
Note:
• The weather-stripping on the back edge of the module must be in good condition and
returned to its proper position 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.
Figure 38: Removing a Module