Daktronics Galaxy AF-3080 Series, Display Manual

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Power Supplies
The LED power supplies are identified as assembly 0A-1280-4013 for red displays
and assembly 0A-1280-4017 for amber displays in the
Display Assembly drawings.
Each power supply controls two modules.
Complete the following steps to remove a power supply from the sign:
1. Remove the module directly in front of the failed power supply.
2. Disconnect all the wires connected to the power supply.
3. Remove the hardware holding the power supply in place to free the unit.
4. Follow these steps in reverse order to install a new power supply.
5. Verify power supply voltage.
4.7 Optional Temperature Sensor Electrical Installation
Reference Drawings:
Temp Sensor Mounting.................................................. Drawing A-79767
Signal Input, Venus 1500............................................. Drawing A-129110
After mounting the optional temperature sensor, follow these steps to complete the
electrical installation. A 2-pair, individually shielded cable (Belden 5594, Daktronics
part number W-1234) is used to connect the sensor to the controller.
1. Run ½ " conduit from the sensor location to the controller within the
display. The cable must be routed through one-foot of ½" metal conduit that
should be earth-grounded to protect the sensor and controller form lightning
damage.
2. Connect the cable to the temperature sensor terminal block within the
temperature sensor as follow:
Wire Color Terminal Block
Red V+
Green P
Black GND
White N
3. Install the mesh screen with the four screws enclosed.
4. Disconnect power to the display before attaching the cable
5. Connect the cable to the temperature sensor terminal block on the controller
(TB7) per the following table:
Wire Color Terminal Block TB7
(Temp In)
Pin 1 (+5)
Pin 2 (GND)
Pin 3 (Light +)
Pin 4 (Light -)
Green Pin 5 (Temp +)
White Pin 6 (Temp -)
Red Pin 7 (+5V)
Black and Shield Pin 8 (GND
Maintenance and Troubleshooting
4-10