Daktronics BA-1518, Руководство по обслуживанию

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TNMCs & Electronic Captions
26
Weather Stripping
To ensure that the display is waterproof, weather stripping has been installed around
each module. It is important that the weather stripping is attached properly at all times,
or water may leak into the display and damage the components.
When installing a new module, take note of the following points:
• The weather stripping on the back edge of the module must be intact and in good
condition 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.
Power Supplies
Power supply configurations will vary depending on the number and/or color of modules.
Refer to the component location drawing in Appendix B to determine the number and
location of all power supplies in the display.
Replacing a Power Supply
To remove a power supply:
1� Access the internal components using the appropriate method described in Front
Access (p�22) or Rear Access (p�23) .
2� Disconnect all wires connected to the power supply.
3� Remove the hardware holding the power supply in place and slide it out of the
display cabinet.
4� Fasten the new power supply in place and reconnect all wires.
5� Power up and test the scoreboard/display to verify the issue has been resolved.
Display Maintenance
Complete a yearly inspection to maintain safe and dependable display operation. This
inspection should address the following issues:
•
Loose Hardware: Verify that fasteners, such as bolts and rivets, have not come loose.
Check and tighten or replace fasteners as required.
• Excessive Dust Buildup: It may be necessary to occasionally vacuum the inside of the
display cabinet to remove dust/dirt buildup that may interfere with airflow.
• Water Intrusion - Water Stain Marks: Check electronic components for signs of
corrosion. Water can enter the display where fasteners are loose, where weather
stripping has come loose or has deteriorated allowing gaps in the panels, or where
moisture enters around hardware.
• Corrosion: Check the paint, and look for possible corrosion, especially at footings,
structural tie points, ground rods, and other types of grounding electrodes.
Make repairs or take corrective action immediately if any of the preceding conditions
are present.