Daktronics AF-3090-89-R,A - Manual (Page 26)

Maintenance &
Troubleshooting
4-1
Section 4: Maintenance & Troubleshooting
IMPORTANT NOTES:
1. Disconnect power before performing any repairs or maintenance work
on the sign!
2. Only qualified service personnel may access internal sign electronics.
3. The Daktronics engineering staff must approve ANY changes made to
the sign. Before altering the sign, you must submit to the Daktronics
engineering staff detailed drawings for the proposed modifications for
evaluation and approval or you will void the warranty.
4.1 Maintenance & Troubleshooting Overview
Daktronics Galaxy series AF-3090 signs are front accessible, meaning you can only access the internal
components from the front of the sign.
This section provides the following Galaxy sign information.
• Recommended Tools List: provides a listing of all tools needed in order to perform maintenance
work on your display
• Signal Routing Summaries: provide a basic explanation of the signal travel through the sign.
• Power Routing Summaries: provide a basic explanation of the power travel through the sign.
• Service and Diagnostics: provides instructions for removing various sign components and
explains the functions of circuit board connectors and the meanings of any diagnostic LEDs.
• Maintenance: lists a number of steps to take to keep this Galaxy sign in safe, working order.
• Troubleshooting: lists some possible sign malfunctions and provides a number of possible causes
for that malfunction.
• Replacement Parts Lists: lists the part description and part number of sign components that
could possibly need replacing during the life of this sign.
• Daktronics Exchange/Repair & Return Programs: explains the Daktronics component return
policy.
4.2 Recommended Tools List
When performing maintenance work on your display, Daktronics recommends using the following
tools and placing them in a convenient, easy-access location.
— 7/32” Nut Driver: removes modules in front access displa ys
— 7/16” Wrench: removes support hardware for power supplies
— #2 Phillips Screwdriver: removes support hardware for power supplies and detaches power
supplies