Daktronics AF-3165-34-RGB - Manual (Page 58)

Maintenance and Troubleshooting 4-16
4.9 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.
• Check power to module.
• Replace the first module/driver on the left side
of the first module that is not working.
• Replace the second module 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 ribbon cable to first module.
• Check for bent pins on module and controller
• Replace first module.
• Replace controller.
• Check the fuses in the power termination box.
A group of modules, (a column of
block) which share the same
power supply assembly, fail to
work.
• Check voltage to module.
• Check the wire connections at the power
supply.
• 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 panel.
• Check for correct power to controller and
modules.
• Check/replace the ribbon cable from the
controller to the modules.
• Check the voltage settings on the power
supplies.
• Verify proper use of the software in the
operation manual.
• Replace the controller.
• (For direct displays) Check the signal cable
from the computer to the controller by doing a
loop back test. (See Appendix B)
Temperature always reads –
196F/-127C degrees F/ C
• Check temperature sensor connections.
• Replace the temperature sensor.
• Replace the controller.