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Safety precautions, System overview, Safety precautions -2 – Daktronics AF-3050-20-R,A User Manual

Page 8: System overview -2

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All references to drawing numbers, appendices, figures, or other manuals are presented in bold
typeface, as shown below.

“Refer to Drawing A-69945 in Appendix A for the power supply location.”


Additionally, drawings referenced in a particular section are listed at the beginning of that section as
seen in the following example:

Reference Drawing:

Component

Placement Diagram............................................................ Drawing A-69945


Daktronics signs are built for long life and require little maintenance. However, from time to time,
certain sign components will need replacing. The Replacement Parts List in Section 4.11 provides
the names and part number of components that may need to be ordered during the life of the sign.
Most sign 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 Daktronics Exchange and Repair and Return
Programs
in Section 4.12. Refer to these instructions if any sign component needs replacement or
repair.

1.2 Safety

Precautions

Important Safeguards:

1. Read and understand these instructions before installing.
2.
Be sure the sign is properly grounded.

3. Disconnect power when servicing the sign.
4.
Do not modify the sign structure or attach any panels or coverings to the sign without

the written consent of Daktronics, Inc.

1.3 System

Overview

Daktronics Galaxy AF-3050 signs are designed and manufactured for performance, reliability, easy
maintenance and long life. The pixels have a 20mm center-to-center spacing, and are lit using LEDs
(light emitting diodes). Each sign section has minimum 6-inch character height. A light sensor on the
front of the sign is used for automatic dimming of the LEDs based on the ambient light levels. The
configuration of pixels depends on the model of sign ordered.

The Galaxy model numbers are described as follows: AF-3050-CCCxBBB-20-R


AF-3050

= Outdoor Galaxy Sign

CCC

= Number of Rows High

BBB

= Number of Columns Long

20

= 20mm center-to-center spacing with 6"

Minimum Character Height

R

= LED Color (Monochrome Amber or Red)

Introduction

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