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3 Maintenance and Troubleshooting
Getting Started
1. Before performing any repair or maintenance to the displays:
a. Disconnect utility power.
b. Disable the display UPS system (if equipped) by shutting off the two switches on
the UPS head unit face panel.
2.
Only qualified service personnel should access internal display electronics. Contact
Daktronics Customer Service for training needs.
3. Daktronics engineering staff must approve changes made to the displays. If making
modifications, submit detailed drawings to the Daktronics engineering staff for
evaluation and approval or the warranty will be void.
Service and Diagnostics
The VF-24X0 series DMS are front accessible — all internal components are accessible
from within the display.
The following tools are required to service the display:
• Hex-head wrench (
5
/
16
")
• Stubby Phillips screwdriver
• Small Phillips screwdriver
•
Small flat-head screwdriver
• Small pliers
• Medium Phillips screwdriver
•
Medium flat-head screwdriver
• Nut driver (
3
/
8
")
• Cable ties
• Multimeter
• Clamp-on ground meter
Module Numbering System
Daktronics uses a module numbering system
to help with troubleshooting; refer to
.
Figure 5:
Module Numbering
