Daktronics AB-1600-1.5,2.5 - Manual (Page 44)

4-2 Maintenance & Troubleshooting
4.2 Operational Summary
Reference Drawings:
Schematic, 16 High, 48 to 96 .................................................................Drawing B-112311
Schematic, 7 or 8 High, 48 to 96............................................................Drawing B-112505
Schematic, 24 High, 48 to 96 .................................................................Drawing B-113973
Shop Dwg, 7 or 8 High, 2 ½’’ .................................................................Drawing A-114666
Shop Dwg, 16 High, 2 ½’’.......................................................................Drawing A-114667
Shop Dwg, 24 High, 2 ½’’.......................................................................Drawing A-114668
This overview summarizes the power and signal functioning of the typical 1600 series, 2.5-inch small
matrix display. Refer to the display schematics at the end of this section or any project specific
drawings included in Appendix A for detailed power and signal information.
There are a number of schematics at the end of this section. 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 power termination panel,
display controller and fan control enclosure.
Use the following table to choose the correct shop drawing.
If the display being installed is… Consult Section 3 shop drawing…
7 or 8 high display (all lengths) Drawing A-114666
16 high display (all lengths) Drawing A-114667
24 high display (all lengths) Drawing A-114668
Power Summary
As addressed in Section 3.5, Power Termination at the Display, incoming power terminates at
TB41 on the power termination panel within the display. Display grounding is the responsibility
of the installer must comply with both Article 250 of the National Electrical Code and all local
codes and standards.
From the power termination panel, power routes to the transformers; the display size determines
the exact number of transformers. Each transformer fuses on the primary side. These fuses are
located above TB41 on the power termination panel. Use only FLNR20, 250 V slow blow fuses.
Refer to the replacement parts list in Section 4.15.
From the transformers, power routes to the individual lampbanks on the backsides of the
lens/reflector assemblies. Each transformer is capable of powering a maximum of two modules
(eight lampbanks).
In addition, the power termination panel also houses the fuse for the display controller (Venus
1500 controller or serial line interface). This is the top-most fuse on the panel. Replace this fuse
with only another AGC-2 ½, 2 ½ A, 250 V fuse.
An individual fuse is also located within the fan control enclosure. Power to the fans routes
through this fuse and then through a relay. If the display is blank for 30 minutes, the display
If the display being installed is… Consult schematic…
7 or 8x48 pixels to 7 or 8x144 pixels Drawing B-112505
16x48 pixels to 16x64 pixels Drawing B-112311
24x48 pixels to 24x96 pixels Drawing B-113973