Daktronics Valo Digital Billboard - Manual (Page 28)

Replacing Display Components 20
2. If there is still a problem, replace the MLC before the problem MLC. This will verify
there is not a bad output on that MLC.
3. If the problem persists, inspect the cable link. Cut and remove the cable ties, as they
may be too tight.
4. Inspect the RJ45 ends for poor crimping/latching or corrosion. If possible, use an
Ethernet cable tester.
5. Inspect the RJ45 ends and CaiLube for dirt that would prevent the pins from making
contact. If dirt is found:
a. Power down the equipment for cleaning.
b. Clean RJ45 ends with CRC contact cleaner and a soft bristle brush.
c. Clean inside of the jacks on the MLC and/or DD with contact cleaner.
d. Apply CRC electrical grease to the jacks on the MLC and/or DD and the ends of
the RJ45 cable.
6. If the issue persists, replace the Cat-5 cable. If the cable fixes the issues, send the cable
with a parts return tag that describes the issue and display location to:
Daktronics Inc.
ATTN: Billboard Electrical Engineers
201 Daktronics Dr. PO Box 5128
Brookings, SD 57006
5.2 2000 and 3000 Series Specific Procedures
Note on Removing Modules
Refer to Section 4: for removing modules from the display.
Replacing a Mobotix Webcam with a Panasonic Webcam
Required tools:
• Mobotix to Panasonic retrofit kit (0A-1413-3013)
• Drill
• 1 /
2
" Drill bit
• Wire cutters
• 5 /
16
" and/or 1 /
4
" Nut driver bit
• Socket set