
Figure 17: TNMC Controller Assembly
Note that connectors J25 and J26 control Home and Guest display. When the ribbon cable is
plugged into J25, the TNMC sends home team information to the matrix display. In the opposite
message center, the signal cable would be plugged into the J26 connector, and guest information
would be displayed. (Switching the cables reverses the information each message center receives.)
J19 is the connector for the address plug. The address setting for TNMCs will always be 221.
(There may be other settings if the TNMCs are used to display messages other than team names.)
Diagnostic LEDs
Reference Drawing:
4 Column MASC LED Driver Specifications ..........
Drawing A-166216
There are seven diagnostic LEDs located on the TNMC controller, six indicating when the
controller is receiving signal, and the seventh indicating power status. Four of the LEDs, those
indicating CAN and RS-232 signal functions, are not used with the TNMC controller.
The following table explains the operation and functions of each of the diagnostic LEDs.
9-4 TNMC
Maintenance
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...