Daktronics Galaxy AF-3190 Series, Display Manual

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Section 4: Maintenance and
Troubleshooting
Maintenance and Troubleshooting
4-1
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 and Troubleshooting Overview
Daktronics Galaxy
®
series AF-3197 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 give a basic explanation of the route that signal
travels through the sign.
•
Power Routing Summaries show a basic explanation of the route that
power travels through the sign.
•
Service and Diagnostics offer instructions for removing various sign
components and explain the functions of circuit board connectors and the
meanings of diagnostic LEDs.
•
Maintenance lists a number of steps to take to keep this Galaxy
®
sign in
safe, working order.
•
Troubleshooting presents some possible sign malfunctions and provides a
number of possible causes for that malfunction.
•
Replacement Parts List includes the part number and description of sign
components that could possibly need replacing during the life of this sign.
•
Daktronics Exchange and Repair and Return Programs explain the
Daktronics component return policy.