Daktronics AF-3090-89-R,A - Manual (Page 36)

Maintenance &
Troubleshooting
4-11
4.12 Troubleshooting
This sub-section contains some symptoms that you may encounter in the signs. 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 pixel strip
• Replace/check cables on the module.
• Replace the driver.
One or more LEDs on a single module
fail to turn off. • Replace pixel strip
• Replace/check cables on module.
• 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 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.
• Replace the ribbon cable.
One row of modules does not work or is
garbled. • 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. • Replace the power supply assembly.
• Check power supply voltage
Entire sign fails to work. • Check for proper line voltage into the power
termination panel.
• Check/replace the signal cable to the
controller.
• Check/replace the ribbon cable from the
controller to the driver.
• Check the voltage settings on the power
supplies.
• Replace the controller.
• Verify proper use of the software in the
operation manual.
Temperature always reads 32 degrees
F/0 degrees C • Check temperature sensor connections.
• Replace the temperature sensor.
• Replace the controller.
Sign is stuck on bright or dim.
• Check Manual/Auto dimming in Venus 1500
software.
• Check light detector cable.
• Check light detector for obstructions.
• Replace the light detector.
• Replace the controller.