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Troubleshooting, Troubleshooting -13, 12 troubleshooting – Daktronics AF-3080-68-R,A User Manual

Page 55

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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/check cables on the
module.

Replace display board.

Replace the driver.

One or more LEDs on a single
module fail to turn off.

Replace/check cables on
module.

Replace display board.

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 cables on the
drivers.

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 distorted.

Replace/check cables from
driver to modules.

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 cabling to power supply.

Check cabling from power
supply to drivers.

Replace the power supply
assembly.

Entire sign fails to work.

Check for proper line voltage
into the power termination
panel.

Check the breakers to 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 (ED-13348).

Temperature always reads 32ºF/
0ºC

Check temperature sensor
connections.

Replace the temperature
sensor.

Replace the controller.

Maintenance and Troubleshooting

4-13