Daktronics Valo Digital Billboard - Manual (Page 33)

Routine Maintenance 25
Section 6: Routine Maintenance
6.1 Inspecting a Display
When performing maintenance on a display, check for the following items:
• Inspect for modules protruding from the display face. If a module is protruding from
the display, press the module in and tighten the module according to the steps in
Section 5.1. If the module will still not latch, the latch may need replacement.
• Inspect for dirty filters in the display and the control enclosure. Refer to Section 5:
for filter replacement steps.
• Inspect for water in the display. If water is found, attempt to locate the source of
water intrusion.
• Ensure the cooling system and fans are working properly.
• For 1000 series displays, ensure the display border is secure. Refer to Section 5.1 for
steps on reattaching loose borders.
• Inspect the back sheets to ensure the silicone is in good condition and is sealing
properly. Refer to Section 6.3 for steps on reapplying silicone to the back sheets.
• Ensure there is not standing water in the spare parts box.
• Ensure the gasket is on the spare parts box. Refer to Section 6.6 for the steps to
reapply the gasket to the spare parts box.
• Call the NOC at 1-877-325-4357 if any of the issues are found.
6.2 Restarting a Display
Occasionally, it may be necessary to restart a display. To restart a display:
1. Shut down all control equipment in the remote enclosure.
2. Turn off the Uninterruptible Power Supply (UPS). Not turning off the UPS will delay
sign restart.
3. Turn off all breakers in the main distribution panel inside the display. Refer to the
display-specific system riser to locate the distribution panel. Typically, there is one
breaker panel per display section.
4. Turn off site power.
5. Turn on site power.
6. Turn on all breakers in the main distribution panel inside the display.