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..........................................................................1-6
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......................................................................................2-2
2.6 Optional Temperature Sensor Installation.................................................2-3
Section 3: Electrical Installation.....................................................................3-1
3.1 Common Connectors in the Display..........................................................3-1
3.2 Signal Termination Enclosures..................................................................3-3
3.3 Conduit......................................................................................................3-3
3.4 Preparing for Power/Signal Connection....................................................3-4
3.5 Power.........................................................................................................3-5
Grounding.................................................................................................. 3-5
Power Installation...................................................................................... 3-6
Power Connection......................................................................................3-6
Main Disconnect........................................................................................ 3-7
3.6 Signal Termination from Computer to Display.........................................3-8
3.7 Signal Termination between Displays.......................................................3-8
3.8 Optional Temperature Sensor Installation.................................................3-9
3.9 First Time Operation .................................................................................3-9
Section 4: Maintenance and Troubleshooting..............................................4-1
4.1 Maintenance and Troubleshooting Overview............................................4-1
4.2 Signal Summary ........................................................................................4-1
4.3 Power Summary ........................................................................................4-2
4.4 Display Access ..........................................................................................4-3
4.5 Service and Diagnostics.............................................................................4-3
Line Filter.................................................................................................. 4-4
Modules and Drivers .................................................................................4-4
Controller................................................................................................... 4-5
Power Supplies..........................................................................................4-7
4.6 Ventilation Systems...................................................................................4-7
4.7 Thermostats ...............................................................................................4-8
4.8 Display Maintenance.................................................................................4-8
4.9 Weather-Stripping .....................................................................................4-9
4.10 Troubleshooting.........................................................................................4-9
4.11 Initial Operation Information...................................................................4-10
4.12 Replacement Parts List............................................................................4-10