Daktronics AF-3400-12-RGB - Manual (Page 7)

Section 1: Introduction
This manual explains the installation, maintenance, and troubleshooting for the Galaxy ® AF-3400
12 mm display. For questions regarding the safety, installation, operation, or service of this system,
please refer to the telephone numbers listed on the cover page of this manual.
Drawings may be referenced by drawing number at the beginning of some sections. Figure 1
illustrates the Daktronics drawing label. The drawing number is located in the lower-right corner of
the drawing. The drawing number consists of the last set of digits and the letter preceding them. In
the example below, the drawing would be referred to as Drawing B-206146. Reference drawings are
inserted in Appendix A.
Figure 1: Drawing Label
1.1 Safety Precautions
Important Safeguards:
• Read and understand these instructions before installing
• Be sure the display and external signal enclosures are properly grounded with
an earth ground electrode at the display
• Disconnect power when servicing the display
• Do not modify the display structure or attach any panels or coverings to the
display without the written consent of Daktronics.
1.2 Display Overview
The Galaxy ® AF-3400 12 mm displays are designed and manufactured for performance,
reliability, easy maintenance, and long life. The pixels have a 12 mm center-to-center spacing
and are lit using LEDs (light-emitting diodes). A light sensor on the front of the display is
used for automatic dimming of the LEDs based on the ambient light levels.
The Galaxy
® display number for these displays is described as follows:
Introduction 1