Daktronics KE-1010-7.6-RG - Manual (Page 22)

Maintenance and Troubleshooting
16
Visual Structural Inspection
At least once a year, check the display to make sure that the structure and components are in
good condition. Inspect the paint and cabinet for corrosion. Make sure that fasteners are
tight; if not, tighten or replace as required.
5.2 Troubleshooting
This chart lists some symptoms that may be encountered with the ticker displays. For each
symptom, possible causes and corrective actions are indicated. This list does not include
every possible problem but does represent some of the more common situations that may
occur.
Symptom/Condition Possible Cause/Remedy
A single pixel on the display will not light. • Check signal connection.
• Replace the module.
One or more LEDs will not turn off. • Check signal connection.
• Replace the module.
Section of display is not working. • Check power to the section.
• Check for input power to the module.
• Replace ribbon cable.
• Replace/move the first module not working.
• Replace/move the last working module of the
previous section.
• Check power supply.
• Replace shift card.
• Replace the controller.
Display is garbled or sequence is shifted. • Check the data settings on the computer.
• Check signal connections.
• Refer to the data feed manual.
A group of modules does not work. • Check for output from power supplies.
• Reboot power to the section.
• Check/replace ribbon cable.
• Replace/move the first module not working.
• Replace/move the last working module of the
previous section.
• Check signal connections.
Entire display does not work. • Check 100-240 VAC input power to 1 st section.
• Check all signal connections.
• Check PC/Feed setting for proper orientation.
• Replace controller.
Data feed or software is not operating
properly.
• Refer to data feed manual.
• Check signal connection feed to display.
• Contact data feed/software provider.
Display resets and restarts. • Reduce the amount of amber pixels used.
• Remove inverted text.