Table of Contents i
Table of Contents
Section 1: Introduction....................................................................................1-1
1.1 Safety Precautions.....................................................................................1-2
1.2 Network Concepts ..................................................................................... 1-3
1.3 Display Overview...................................................................................... 1-4
1.4 Component Identification..........................................................................1-5
1.5 Daktronics Nomenclature.......................................................................... 1-7
Section 2: Mechanical Installation.................................................................2-1
2.1 Mechanical Installation Overview.............................................................2-1
2.2 Support Structure Design........................................................................... 2-1
2.3 Ventilation Requirements.......................................................................... 2-2
2.4 Lifting the Display..................................................................................... 2-2
2.5 Display Mounting...................................................................................... 2-3
Mounting a Non-Sectional Display.................................................... 2-3
Mounting a Sectional Display ............................................................ 2-4
2.6 Optional Temperature Sensor Mounting ...................................................2-5
Section 3: Electrical Installation.....................................................................3-1
3.1 Common Connectors in the Display..........................................................3-1
3.2 Signal Termination Enclosures.................................................................. 3-3
3.3 Interconnect for Sectional Displays........................................................... 3-3
3.4 Conduit...................................................................................................... 3-4
3.5 Preparing for Power/Signal Connection....................................................3-4
3.6 Power.........................................................................................................3-5
Power Requirements........................................................................... 3-5
Grounding........................................................................................... 3-6
Power Installation...............................................................................3-6
Power Connection .............................................................................. 3-7
Main Disconnect.................................................................................3-9
3.7 Signal Termination from Computer to Display......................................... 3-9
3.8 Signal Termination Between Displays (Primary – Mirror) ..................... 3-10
Section 4: Maintenance and Troubleshooting..............................................4-1
4.1 Maintenance and Troubleshooting Overview............................................ 4-1
4.2 Signal Summary ........................................................................................ 4-2
4.3 Power Summary ........................................................................................ 4-3
4.4 Display Access .......................................................................................... 4-5
4.5 Service and Diagnostics.............................................................................4-7
Transformer and RFI Filter ................................................................4-8
Controller ...........................................................................................4-9
Power Supplies................................................................................. 4-12
4.6 Ventilation Systems................................................................................. 4-12
4.7 Thermostats ............................................................................................. 4-12