Daktronics TN-2011, Display Manual

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TNMC Maintenance
6-10
(Continued from preceding page)
Symptom/Condition Possible Cause/Remedy
A section of the display is not
working; the section extends all the
way to the right side of the display. 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.
Replace the ribbon cable.
One row of modules does not work
or is garbled. Replace the first module.
Replace the controller.
A group of modules that share the
same power supply assembly fails
to work. Replace the power supply assembly.
Entire display fails to work. Check for proper line voltage into the
power termination panel.
Check/replace the ribbon cable from the
controller to the modules.
Check the voltage settings on the power
supplies.
Check/replace the signal cable to the
controller.
Replace the controller.
6.8 Initialization Information at Startup
Every time the display is powered up, the display will run through an initialization
during which it will test all LEDs and addresses. First, the message center will
display the proper address number. When completed, the initialization test will
display Home and Guest in the appropriate location. If the entire TNMC display fails
at startup, signal may not be properly connected, or the address plug may not be
connected to the J17 jack on the TNMC controller card. Check both connections in
the event of a failure.
6.9 Replacement Parts List
The following table contains some of the TNMC components that may have to be
replaced over the life of a display. Many of the components within the display itself
also have attached part number labels.