
9-10 TNMC
Maintenance
Symptom/Condition
Possible Cause/Remedy
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.
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.
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.
Summary of Contents for BA-1518
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Page 199: ...Eyebolts B 1 Appendix B Eyebolts Eyebolts ED 7244...
Page 202: ...Appendix C C...