Daktronics 4000 Series Digital Billboard - Manual (Page 29)

S ervice C all 23
S ection 6: S ervice C all
At every service call, perform the following service and maintenance checks.
Required tools: Digital camera, to provide Daktronics with evidence of display damage,
water intrusion, or other issues.
6.1 S ervice Ins tructions
When arriving on site, contact Daktronics Dispatch at 1-866-325-8425 and selecting #1 before
service to announce you are on site. If immediate technical assistance is needed, ask to be
transferred to the technical help desk. If no assistance is needed, proceed with display
service.
S ervice Is s ue
1. Correct the service issue.
S tructure
1. Inspect the structure, ladder, and catwalks for structural integrity.
Dis play C abinet
1. Check the entire display cabinet for holes, gaps, and other issues. Fill any gaps or holes
with silicone approved for use on aluminum.
2. Ensure the doors are latched.
Water Intrus ion Ins pection
1. Check section splices for water trails. Follow the water trail to its source and silicone as
needed.
2. Check the inside of the display at several locations for evidence of water intrusion,
corrosion, or water stains. Include the cabinet, modules, power supplies, and PLRs in the
inspection. Photograph any evidence of water intrusion.