Daktronics Galaxy AF-3190 Series, Display Manual, Page: 60 / 97

Maintenance and Troubleshooting
4-16
4.11 Troubleshooting
This sub-section contains some symptoms that you may encounter with 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 cables on the module.
•
Replace pixel strip.
•
Replace the driver.
One or more LEDs on a single
module fail to turn off.
•
Replace/check cables on module.
•
Replace pixel strip.
•
Replace the driver.
A section of the sign is not
working. The section extends all
the way to the right side of the
sign.
•
Replace/check the cables.
•
Check power to the modules.
•
Replace the first driver on the left
side of the first module that is not
working.
•
Replace the second driver 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 the cables.
•
Replace first driver.
•
Replace controller.
•
Check the fuses in the power
termination box.
A group of modules, which share
the same power supply
assembly, fail to work.
•
Check power supply voltage.
•
Replace the power supply assembly.
Entire sign fails to work.
•
Check for proper line voltage into the
power termination panel.
•
Check the fuse in the power
termination panel.
•
Check/replace the ribbon cable from
the controller to the driver.
•
Check the voltage settings on the
power supplies.
•
Verify proper use of the software in
the operation manual.
•
Replace the controller.
•
Check/replace the signal cable to the
controller.
Temperature always reads -196
degrees
•
Check temperature sensor
connections.
•
Replace the temperature sensor.
•
Replace the controller.