Daktronics Valo Digital Billboard - Manual (Page 27)

Replacing Display Components 19
the latch assembly.
3. Lift one side of the gear housing.
4. Place a flat head screwdriver into the middle pry slot.
5. Firmly pry with the handle of the screwdriver until gear housing comes loose.
6. Repeat Step 4 and Step 5 on the other side of the gear housing.
7. Lift the latch arms so they are no longer engaged with the module gear.
8. Lift the module gear out of the module housing.
9. Replace the existing module gear with a replacement module gear.
10. Press the latch arms down until they engage with the module gear teeth.
11. Ensure both clasps are in all the way or out all the way before replacing the module gear
housing.
12. Place the gear housing over the module gear and latch arm assembly.
13. Place a large nut driver over the gear plug.
14. Strike the top of the nut drive with a hand to snap the gear housing into place.
15. Test the latch assembly to ensure it functions properly.
Legacy Cat-5 Cables
There have been numerous perceived failures of Cat-5 in the field. Cat-5 cables connected to
the DD, MLC, and / or as a MLC to MLC link. Failures are visual and diagnostic.
Required tools:
• Soft bristle brush
• CRC Contact Cleaner
• CRC Di-Electrical Grease
• Module wrench
• Wire cutters
Follow these steps to determine the root cause:
1. Replace the MLC or DD where the problem starts. The DD could have a bad output
or the MLC could have a bad input. Use the diagnostic codes/lights on the MLC or
DD to troubleshoot the issue.