Daktronics AB-1600-1.5,2.5 - Manual (Page 38)

Maintenance & Troubleshooting 4-2
• = Replacement Parts List: provides the descriptions and part numbers of selected display
components.
• = Exchange/Replacement Procedure: explains the process for returning a display component to
Daktronics for repair or replacement.
4.2 Operational Summary
Reference Drawings:
Schematic, Pwr Wiring, LR, Marquee.................................................. Drawing A-102918
Schematic, Pwr Wiring, LR, Sports...................................................... Drawing A-104272
Schematic, Pwr Wiring, 16 Mil, Marquee ............................................... Drawing A-98139
Schematic, Pwr Wiring, 16 Mil, Sports................................................. Drawing A-103345
Shop Drawing, 32YYY-10 S1600......................................................... Drawing B-103031
Shop Drawing, 40YYY-10 S1600......................................................... Drawing B-103032
Shop Drawing, 48YYY-10 S1600......................................................... Drawing B-102149
Shop Drawing, 56YYY-10 S1600......................................................... Drawing B-103034
Shop Drawing, 64YYY-10 S1600......................................................... Drawing B-103035
Shop Drawing 72YYY-10 S1600.......................................................... Drawing B-103036
This overview summarizes the power and signal functioning of the typical 1600 series, 1.5-inch large
matrix display. Refer to the display schematics in Appendix B or any project specific drawings
included in Appendix A for detailed power and signal information.
There are a number of schematics in Appendix A. Use the following table as a guide in choosing the
one appropriate for this display.
In addition, the shop drawings in Appendix A show the locations of the panelboards, display
controller and fan control enclosure, assuming no project specific drawings exist.
Use the following table to choose the correct shop drawing.
If the display being installed is… Consult shop drawing…
32 high display (all lengths) Drawing B-103031
40 high display (all lengths) Drawing B-103032
48 high display (all lengths) Drawing B-102149
56 high display (all lengths) Drawing B-103034
64 high display (all lengths) Drawing B-103035
72 high display (all lengths) Drawing B-103036
Power Summary
As addressed in Section 0, incoming power terminates at the panelboard. The panelboard
typically mounts within 20 feet of the display but may mount to the display itself in special
circumstances. Display grounding is the responsibility of the installer; it must comply with both
Article 250 of the National Electrical Code and all local codes and standards.
From the panelboard, power routes to the transformers from a 30-amp breaker to a map of four
transformers. A MDL-7 slow blow fuse protects each transformer on its primary side.
From the transformers, power Travels to the individual lampbanks on the backsides of the
lens/reflector assemblies. Each transformer is capable of powering a maximum of 128 pixels.