Daktronics Galaxy AF-3200 Series, Manual

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Figure 19: AF-3190 Signal Flow Diagram
4.4 Power Summary
Reference Drawings:
Schematic; Power Supply Configurations .................... Drawing A-158225
Schematic, AF-3400-(8-48X32-112)-89-Mono-*-* ....... Drawing A-177829
Schematic; Power Supply Assembly ........................... Drawing A-184245
The following describes the internal display power routing for the display:
1. Incoming power terminates at the panel board.
2. 120 VAC power is then relayed to the power supplies in the display, which
convert the power to DC voltage.
3. +12VDC power supplies power the modules in a monochrome red display
and +14.7VDC power supplies power the modules in a monochrome amber
and the RGB displays. Refer to
Drawings A-158225 , A-184245 and A-
177829 for power supply wiring information.
4. Power is also sent to the fans, which cool the display and the transformer
that provides power to the controller.
4.5 Recommended Tools List
When performing maintenance work on your display, Daktronics recommends using
the following tools and placing them in a convenient, easy-access location.
y 7/32" Nut Driver to open the modules in front access displays
y 3/16” Nut Driver to remove screws from the control boards.
y
7/16" Wrench removes support hardware from power supplies
y #2 Phillips Screwdriver removes support hardware from power supplies
and detaches power supplies
Maintenance and Troubleshooting
4-3