10 service call, Service instructions, Service issue – Daktronics Valo Digital Billboard User Manual
Page 37: Structure, Photocell, Webcam, Display cabinet, Service call

Routine Maintenance
29
0A-1199-4913
16.75 X 15.75 X 4.13 Module Box
0A-1413-4100
T-Bolt, Border Attachment Hardware
0A-1413-4101
TEK Screw, Silver/Black, Border Attachment Hardware
W-1767
Cable; 3' Fiber Optic, Industrial LC-LC Duplex
6.10 Service Call
At every service call, perform the following service and maintenance checks. For a service
call checklist, use DD1372049 in Appendix A.
Required tools:
• Digital camera
Service Instructions
Contact the Network Operations Center (NOC) at 1-877-DAK-HELP (325-4357) before
performing display service in order to provide a time stamp and get NOC assistance if
needed.
Service Issue
1. Correct the service issue.
Structure
1. Inspect the structure, ladder, and catwalks for structural integrity.
Photocell
1. Test the photocell function. To do so, cover the photocell with an item that will block out
all incoming light. The display content should dim within a couple of minutes.
2. If needed clean the photocell. For cleaning instructions, refer to DD1509618 in Appendix
A.
Webcam
1. If a lift truck is on site, clean the webcam lens. Refocus the camera as necessary.
Display Cabinet
Note: Some 1000 series displays use air conditioning (a/c) units.
1. Verify that the fans or a/c unit are operating properly. Check the condition of all
filters and replace as needed.
2. Inspect the area where the a/c units interface with the display. Verify light is not
visible around the edge of the display. Fill any leaks with polyurethane foam sealant.
3. Check the entire display cabinet for holes, missing nutserts, and other gaps. Fill any
gaps/holes/gouges with silicone.
4. Ensure the back sheets and access panels are tight.