Daktronics Galaxy AF-3080 Series, Display Manual

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4.3 Signal Summary
Reference Drawings:
Power Specs, Amber, 8-24x48-112 Displays .............. Drawing A-163306
Power Specs, Red, 8-24x48-112 ................................. Drawing A-163751
Schematic, Power Supply Configurations.................... Drawing A-163951
Schematic, AF-3080-8x***-Mono ................................. Drawing B-164924
Schematic, AF-3080-16x***-Mono ............................... Drawing B-164926
Schematic, AF-3080-24x***-Mono ............................... Drawing C-165267
Schematic, AF-3080-32x***-Mono ............................... Drawing C-189404
The signal routing for the display can be summarized as follows:
1. Data from the controller computer, which runs Venus 1500 software, travels
via RS232, RS422, modem, fiber optic cable, or Radio into the display.
2. For multiple face display or a display network, an RS422 (most typical) or
fiber cable relays signal between the controller of the first display and the
controller in the second display.
3. From the controller, the signal then travels over a 40-conductor ribbon
cables from the controller (J11 through J16 provides signal out) to J2 on the
driver of the first column of modules in the display.
4. Data exists at J1 and is relayed to J2 of the next driver board and so on,
traveling down the entire row of modules. The drivers use this display data
to control the LEDs.
4.4 Power Summary
Reference Drawings:
Power Specs, Amber, 8-24x48-112 Displays .............. Drawing A-163306
Power Specs, Red, 8-24x48-112 ................................. Drawing A-163751
Schematic, Power Supply Configurations.................... Drawing A-163951
Schematic, AF-3080-8x***-Mono ................................. Drawing B-164924
Schematic, AF-3080-16x***-Mono ............................... Drawing B-164926
Schematic, AF-3080-24x***-Mono ............................... Drawing C-165267
Schematic, AF-3080-32x***-Mono ............................... Drawing C-189404
The following describes the internal display power routing for the display:
1. Incoming power terminates at the panel board.
2. 15VDC power supplies power the drivers for the modules in a monochrome
red display. 11.7VDC power supplies power the drives for the modules in a
monochrome amber display.
4.5 Display Access
Display access for all 68 mm displays is from the front. To open the sign:
1. Locate the two hex head latch holes in the module. With a 1/8" hex-wrench,
apply pressure to the latch and turn each a quarter-turn. One will turn
clockwise and the counter-clockwise.
2. Interior display components may be accessed and the display boards may be
removed.
Maintenance and Troubleshooting
4-2