Daktronics Galaxy Series, Manual

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entering the display. Also, check electronic components for possible
corrosion.
•
Corrosion
Check the paint, and look for possible corrosion especially at footings,
structural tie points, and ground rods.
If any of the above conditions are noticed, action must be taken immediately to
correct the situation.
4.9 Troubleshooting
This sub-section contains some symptoms that may be encountered in the displays.
This list does not include every possible symptom, but does represent common
situations that may occur.
Symptom/Condition Possible Cause/Remedy
One or more LEDs on a single module fail
to light.
•
Replace/check ribbon cables on the module.
•
Replace the module.
One or more LEDs on a single module fail
to turn off.
•
Replace/check ribbon cables on module.
•
Replace the module.
A section of the display is not working.
The section extends all the way to the
right side of the display.
•
Replace/check the ribbon cable to the first module.
•
Check that the first module has power.
•
Replace the first module/driver on the left side of the first
module that is not working.
•
Replace the second module that is not working.
•
Replace the power supply assembly on the first module
that is not working.
One row of modules does not work or is
garbled.
•
Replace/check ribbon cable to first module.
•
Check for bent pins on module and controller.
•
Replace controller.
•
Replace first module.
•
Check the fuses in the power termination box.
A group of modules, (a column or block)
which share the same power supply
assembly, fail to work.
•
Check the wire connections at the power supply.
•
Check power to modules.
•
Replace the power supply assembly.
Entire display fails to work.
•
Check for proper line voltage into the power termination
panel.
•
Check for correct power to controller and modules.
•
Check fuse in power termination panel.
•
Check/replace the ribbon cable from the controller to the
modules.
•
Check the voltage settings on the power supplies.
•
Verify proper use of the software in the V1500 Controller
manual (
ED13530 ).
•
Replace the controller.
•
(For direct displays) Check the signal cable to the
controller using the loopback test.
Temperature always reads –196F/-127C
degrees F/ C
•
Check temperature sensor connections.
•
Replace the temperature sensor.
•
Replace the controller.
Display is stuck on bright or dim.
•
Check Manual/Auto dimming in Venus 1500 software.
•
Check light detector cable.
•
Check the address on the Light Sensor.
•
Check light detector for obstructions.
•
Replace the light detector.
•
Replace the controller.
Maintenance and Troubleshooting
4-15