Daktronics AF-3080-68-R,A - Manual (Page 4)

Modem ..............................................................................................3-11
Fiber Optic ........................................................................................3-11
Venus
®
1500 Radio Client ................................................................3-12
3.9 Signal Termination Between Two (or More) Signs .................................3-14
RS422 Interconnection......................................................................3-14
Fiber Interconnection ........................................................................3-15
3.10 Optional Temperature Sensor Electrical Installation ...............................3-15
3.11 Initial Operation .......................................................................................3-17
Section 4: Maintenance and Troubleshooting.............................................. 4-1
4.1 Maintenance and Troubleshooting Overview ............................................4-1
4.2 Recommended Tools List ..........................................................................4-1
4.3 Signal Summary .........................................................................................4-2
4.4 Power Summary .........................................................................................4-2
4.5 Display Access ...........................................................................................4-2
4.6 Service and Diagnostics .............................................................................4-3
Line Filter ...........................................................................................4-4
Modules, Display boards, and Drivers ................................................4-4
Controller ............................................................................................4-6
Modem ................................................................................................4-8
Fiber Board .........................................................................................4-9
RS422 Surge Suppressor.....................................................................4-9
Power Supplies..................................................................................4-10
4.7 Optional Temperature Sensor Electrical Installation ...............................4-10
4.8 Ventilation Systems .................................................................................4-11
4.9 Thermostats ..............................................................................................4-12
4.10 Sign Maintenance.....................................................................................4-12
4.11 Weather Stripping ....................................................................................4-12
4.12 Troubleshooting .......................................................................................4-13
4.13 Initial Operation Information ...................................................................4-14
4.14 Replacement Parts List.............................................................................4-15
4.15 Daktronics Exchange and Repair and Return Programs ..........................4-16
Appendix A: Reference Drawings..................................................................... A-1
Appendix B: Signal Converter........................................................................... B-1
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