Daktronics 4200 Series, Service Manual

Page: 35 / 39

31
Section 10: Display Maintenance
10.1 Service Calls
After addressing service issues on a service call, inspect the following items:
• Check for loose modules.
• Inspect the display for signs of water intrusion.
• Check for corrosion.
• Check the display for signs of damage.
• Check the control enclosure filters. Replace if needed.
• Inspect the control system for damage.
• Perform an inventory of the spare parts box.
• Have the help desk run a diagnostics check of the display. Work with the help desk to
repair any issues found during diagnostics.
10.2 Annual Inspection
It is important to schedule annual maintenance visits on a digital billboard. During the visit:
• Check for water intrusion.
• Replace ISP enclosure filters.
• Inspect for loose modules.
• Inspect the display for excess dust or debris.
• If there is excess dust or debris, filters can be added to the site. In needed, contact the
Account Service Manager for a filter kit.
Display Maintenance