Daktronics AF-3180-64-R,A - Manual (Page 51)

Maintenance and Troubleshooting
4-13
or where moisture may be entering around hardware. Check electronic
components for signs of corrosion.
• Corrosion
Check the paint; look for possible corrosion, especially at footings,
structural tie points and ground rods.
If you notice any of the above conditions, take action to correct the situation.
4.10 Weather Stripping
To ensure the sign is weather resistant, Daktronics provides weather stripping around
the entire sign and around each module. The weather stripping must be properly
installed at all times or water may leak into the sign, damaging the components.
4.11 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 LED board
• Replace/check cables on the module.
• Replace the driver.
One or more LEDs on a single
module fail to turn off. • Replace LED board
• 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 -196
degrees F • Check temperature sensor
connections.
• Replace the temperature sensor.