Daktronics Galaxy AF-3190 Series, Display Manual

Page: 8 / 97

This manual shows all references to drawing numbers, appendices, figures, or other manuals
in
bold typeface, as shown below:
“Refer to Drawing B-206146 in Appendix A for the power supply wiring.”
Additionally, the manual lists drawings referenced in a particular section at the beginning of
that section as seen in the following example:
Reference Drawing:
Schem, Primary Signal, Internal, W/QC ................................... Drawing B-206146
Daktronics builds displays for long life and that require little maintenance. However, from
time to time, certain display components need replacing. The
Replacement Parts List in
Section 4.13 provides the names and numbers of components that may need to be replaced
during the life of the display. Most display components have a white label that lists the part
number. The component part number is in the following format:
0P-_ _ _ _-_ _ _ _ (circuit board) or 0A-_ _ _ _-_ _ _ _ (multi-component assembly).
Following the
Replacement Parts List is the Exchange and Repair and Return Programs
in Section 4.14 . Refer to these instructions if any display component needs replacement or
repair.
1.1 Safety Precautions
Important Safeguards:
1. Read and understand these instructions before installing.
2. Be sure the display and radio enclosures are properly grounded with an
earth ground electrode at the display.
3. Disconnect power when servicing the display.
4. Do not modify the display structure or attach any panels or coverings to
the display without the written consent of Daktronics, Inc.
1.2 Network Concepts
The concept of using LED displays as a cost effective, high impact method of
communication is rapidly growing throughout many industries and businesses. The
reasons for this growth are many, but the need for additional features and the
complexity of multiple display installations has emerged. Daktronics display systems
have been designed to meet those needs.
Introduction
1-2