Daktronics MF-1000/1001/1002/1003/1004 - Manual (Page 11)

Introduction 1-3
1.3 Product Overview
The MF Series Status and Lane Indicator displays are part of a family of Daktronics
LED digit displays designed for easy installation, readability, and reliability.
These displays have the following features:
• These displays use LEDs to illuminate their status or indicator.
• Power usage for individual displays in this series is a maximum 25 W. All
models have a 120 V power requirement.
• All MF Series displays are configured with red and green LEDs.
• MF Series cabinets are constructed of heavy-gauge aluminum.
• Digit faceplates are black and are set directly into the surface of the display.
• Mounting weights and dimensions for each model are listed in Section 2 of
this manual.
• The models are equipped with a photo sensor for automatic dimming in
changing-light environments.
1.4 Component Identification
The following terms include some of the more commonly used terms when referring
to these displays.
This is only a brief overview. Refer to Section 4 for additional information on
maintaining the various display components.
Circuit Board: The LEDs are mounted to a circuit board, which mounts directly to
the back of the power supply board.
LED (light emitting diode): LEDs are high-intensity, low-energy lighting units.
1.5 Daktronics Nomenclature
To fully understand some Daktronics drawings, such as schematics, it is necessary to
know how various components are labeled in those drawings. You will find this
information useful when trying to communicate maintenance or troubleshooting
efforts.
The following labeling formats might be found on various Daktronics drawings:
• “TB _ _” denotes a termination block for power or signal cable.
• “E _ _” denotes a grounding point.
• “J _ _” denotes a power or signal jack.
• “P _ _” denotes a power or signal plug for the opposite jack.