Daktronics AF-3400-64-R,A - Manual (Page 37)

Maintenance and Troubleshooting
4-9
4.9 Weather-Stripping
To ensure the display is weather resistant, Daktronics provides weather-stripping
around the entire display and around each module. The weather-stripping must be
properly installed at all times or water may leak into the display, damaging the
components.
4.10 Troubleshooting
This sub-section contains some symptoms that may occur 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 cables on the module.
• Replace LED board.
• Replace the driver.
One or more LEDs on a single
module fail to turn off. • Replace/check cables on module.
• Replace LED board.
• Replace the driver.
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.
• Move/replace the first driver on the left
side of the first module that is not
working.
• Move/replace the second driver that is
not working.
• Check/replace the power supply
assembly on the first module that is not
working.
One row of modules does not
work or is garbled. • Move/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.
• Check/replace ribbon cables.
• Replace the power supply assembly.
Entire display fails to work. • Check for proper line voltage into the
power termination panel.
• Check fuse in power termination box.
• 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.
• Communicate to display directly using
a laptop.
• Check/replace the signal cable to the
controller.
Temperature always reads -196
degrees F. • 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.