1 display access, Display access, Figure 22: opening display – Daktronics AF-3400-12-RGB User Manual
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6.1 Display Access
To gain access to the interior of a display, single modules are able to be removed. Refer to
Figure 22
to locate the internal components which may need to be accessed. In the case of
fans, consult the Shop Drawing for the specific display. 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:
1.
Turn off power to the display.
2.
Locate the latch access fasteners on the module. One is centered below the third row
of pixels and one is centered above the bottom three rows.
3.
With a
1
/
8
" hex wrench, turn the latch access fasteners a quarter turn – one latch
turns counterclockwise to open and the other turns clockwise. Gently pull the
module far enough forward to reach behind the back and disconnect the power and
ribbon cables. 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.
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.
Figure 22: Opening Display
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 and Troubleshooting 30