Daktronics Galaxy AF-3400 Series, Display Manual

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Maintenance and Troubleshooting
4-14
4.10 Troubleshooting
This sub-section contains some symptoms that may be encountered 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 ribbon cables on the module.
•
Replace the module.
One or more LEDs on a single
module fail to turn off.
•
Replace/check ribbon cables on module.
•
Replace the module.
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.
•
Replace/move the first module/driver that is
not working.
•
Replace/move the first module/driver on the
left side of the module 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 distorted.
•
Replace/check ribbon cable to and from first
non-working module.
•
Check for bent pins on module and controller.
•
Replace/move module that is distorted.
•
Replace/move the first module to the left of the
one that is not working.
•
Replace controller.
A group of modules (a column of
block), which share the same power
supply assembly, fail to work.
•
Check the voltage to the module.
•
Check the wire connections at the power
supply and at the module.
•
Replace the power supply assembly.
Entire display fails to work.
•
Check for proper line voltage to the power J-
box.
•
Check for correct power at power termination
panel.
•
Check for correct power to controller (10 VAC)
and modules.
•
Check the breakers in the power termination
panel.
•
Check/replace the ribbon cable from the
controller to the modules.
•
Check the voltage settings on the power
supplies.
•
Check the signal cable to the controller.
•
Replace the controller.
•
Consult the help guide in the Venus 1500
software.