Daktronics Galaxy Series, Display Manual

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Radio ................................................................................................ 3-10
3.7 Signal Termination Between Two (or More) Displays ............................ 3-12
RS422 Interconnection ..................................................................... 3-12
Fiber Interconnection........................................................................ 3-13
3.8 Initial Operation....................................................................................... 3-13
Section 4: Maintenance and Troubleshooting ............................................. 4-1
4.1 Weather Stripping ...................................................................................... 4-1
4.2 Module Numbering Convention ................................................................ 4-1
4.3 Display Access/Module Removal .............................................................. 4-2
4.4 LED Driver Replacement........................................................................... 4-2
4.5 Power Supply............................................................................................. 4-3
4.6 Controller Board ........................................................................................ 4-4
Accessing and Replacing the Controller Board .................................. 4-4
LEDs and Jumpers .............................................................................. 4-4
Controller Address and Test Mode..................................................... 4-5
Light Detector..................................................................................... 4-6
4.7 Transformer ............................................................................................... 4-6
4.8 Modem....................................................................................................... 4-6
Accessing and Replacing the Modem ................................................. 4-6
LEDs and Jumpers .............................................................................. 4-7
Fiber Board......................................................................................... 4-7
4.9 Signal Routing ........................................................................................... 4-8
4.10 Structural Inspection .................................................................................. 4-8
4.11 Troubleshooting ......................................................................................... 4-9
4.12 Initial Operation Information ................................................................... 4-10
4.13 Replacement Parts.................................................................................... 4-11
4.14 Daktronics Exchange and Repair and Return Programs .......................... 4-12
Appendix A: Optional Temperature Sensor ..................................................... A-1
Appendix B: Signal Converter ...........................................................................B-1
Appendix C: Reference Drawings......................................................................C-1
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