Daktronics TN-2011, Display Manual

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TNMC Maintenance 6-9
Weatherstripping
To ensure that the display is waterproof, weatherstripping has been installed around
the entire display and around each module. It is important that the weatherstripping
is attached properly at all times, or water may leak into the display and damage the
components.
6.6 TNMC 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
Occasionally, it may be necessary to vacuum the inside of the display
cabinet to remove dust/dirt buildup that may interfere with airflow.
Water Intrusion – Water Stain Marks
Water can enter the display where weatherstripping has come loose or
deteriorated; where fasteners have come loose, allowing gaps in the panels;
or where moisture may be entering around hardware. Check electronic
components for corrosion.
Corrosion
Check the paint, and look for possible corrosion, especially at footings,
structural tie points, and ground rods and other types of grounding
electrodes.
If you notice any of the preceding conditions, make repairs or take corrective
action immediately.
6.7 Troubleshooting
This subsection contains some symptoms that may be encountered in the displays.
This list does not include every possible symptom, but does represent common
situations that may occur.
Symptom/Condition Possible Cause/Remedy
One or more LEDs on a single
module fails to light.
Check/replace the ribbon cables on the
module.
Replace the module.
One or more LEDs on a single
module fails to turn off.
Check/replace the ribbon cables on
module.
Replace the module.
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