Daktronics DXB Series, Руководство по обслуживанию

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Test and Replace Display Components
16
Note: It is possible to have a break in just one path. So for example, it is possible all of
the modules may turn Yellow indicating “A” is healthy, but only some of them
turn Magenta indicating a break in the “B” path that needs to be repaired.
Replace a ProLink Router
Required Tools: Phillips screwdriver
1� Access the interior of the display by following
the steps provided in Section 4: Access Internal
Components (p�9) .
2� Disconnect the PLR SATA and power cables.
3� Use a Phillips screwdriver to loosen the PLR assembly
set screw.
4� Lift the PLR assembly to disengage it from the display.
5� Reverse Steps 2–4 to install the new PLR.
6� Verify the cables are properly seated.
Replace PLR Power Supplies
1� Disconnect the power coming from the term panel to the power supply.
2� Disconnect any power cables to the power supply and from that power supply to the
PLR.
3� Pull the power supply tab.
4� Rotate the power supply forward and lift it off of the pegs.
5� Reverse Steps 1–3 to install a replacement power supply.
Replace a Display Fan
Required Tools: Phillips screwdriver, side cutter, cable ties
If needed, remove the fan plenum following the steps in Remove a Fan Plenum (p�11)�
1� Locate and disconnect the 3-pin Mate-N-Lok connector.
2� Use the Phillips screwdriver to loosen the two fan
mounting screws. Refer to Figure 29 .
3� Cut the cable tie holding the harness to the plenum.
4� Remove the fan from the display.
5� Reverse Steps 1–4 to install the new fan.
6� Attach harness to the fan plenum using a cable tie.
Refer to Figure 29 .
Figure 28: ProLink Router
Connected For Self-Test
Figure 29: Display Fan