Daktronics AF-3197-89-RGB - Manual (Page 60)

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.