Daktronics Galaxy AF-3400 34 mm Monochrome/RGB - Manual (Page 38)

6.1 Display Access
To gain access to the interior of a display, single modules can be removed. Refer to Figure 25
to locate the internal components which may need to be viewed. To locate fans and power
supplies, refer to the Schematic Drawing for the specific display since the number and
location of these components varies with display size. The module in front of the specific
component may be removed to perform maintenance or for troubleshooting.
To access the interior of the display, perform the following steps:
Figure 26: Module Access Locations
1. Turn off power to the display.
2. Locate the latch access fasteners on the module. One
is centered below the first row of pixels and one is
centered above the bottom row.
3.
With a 1/8" hex wrench, turn the latch access
fasteners a quarter turn counterclockwise. Gently
pull the module far enough forward to reach behind
the back and disconnect the power and ribbon
cables (Figure 27). Note the cable connections so
they can later be reconnected correctly.
4.
Disconnect the two ribbon cables from the module
by spreading the tabs on the sides and then lifting
the cable head from the jack. Note how they
are connected to the back.
Figure 27: Removing a Module
5. Unplug the power cable by squeezing the tabs
on the sides of the plug head and pulling out.
6.
When ready to reinstall the module, reconnect
the cables to the module, making sure that the
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.
7.
Place the module into its proper location,
checking that the weather stripping is in
place. Latch the module both top and bottom
using the hex wrench.
Note:
• 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.
Maintenance 30