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CMCS -FAULT DISPLAY SUMMARY
Ground Tests Display
Maintenance messages that cause a ground test to fail show on the ground test tests display. The CMCF shows the maintenance messages by ATA chapter.
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CMCS -MAT MAIN MENU DISPLAY
Initial Power-Up
At initial power-up of the airplane, the maintenance access terminal (MAT) shows a MAT main menu display. The MAT main menu display supplies access to these functions:
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Central maintenance computing system (CMCS)
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Airplane conditioning monitoring system (ACMS)
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MAT status
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Self load.
Software Requirements
The operational software for the MAT supplies the displays on the MAT display module. It is in the memory of the MAT display module. This software is called the maintenance terminal function (MTF). Select SELF LOAD from the MAT main menu display to load the MTF.
The operational software for the central maintenance computing function (CMCF) is in memory in the AIMS cabinets.
Screen Saver
The MAT has a screen saver. If you do not use the MAT for 30 minutes, the MAT display becomes dim. Use one of these controls to make the MAT display bright again:
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MAT cursor control device
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MAT keyboard
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MAT brightness control.
The master brightness control does not make the MAT display bright again.
Buttons
Select ONBOARD MAINTENANCE to send a request for CMCS information from the CMCF in the AIMS cabinets. The CMCF sends the data to the MAT and the CMCF main menu shows.
Select CONDITION MONITORING to send a request for ACMS data from the airplane condition monitoring function (ACMF) in the left AIMS cabinet. The ACMF sends the data to the MAT and the ACMF main menu shows.
Select CURRENT STATUS to see the condition of the MAT. A dialog box shows any hardware or software failures.
Select SELF LOAD to load the MTF into the MAT. Use the MAT disk drive or MAT hard drive as the source of the software.
Training Information Point
As many as three technicians can use the CMCS at the same time. Only one technician can use the ACMS at a time. You can also use a portable maintenance access terminal (PMAT) to use the CMCS and ACMS.
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CMCS -MAIN MENU SELECTIONS
General
The CMCF menus supply access to functions that are task oriented. The menus also supply access to functions based on when and how often technicians do certain tasks. As many as three technicians can use the CMCS at the same time.
Main Menu Bar
Select ONBOARD MAINTENANCE from the MAT main menu display to cause the CMCS main menu bar to show at the top of the MAT display. ONBOARD MAINTENANCE and the CMCF in control shows in the center of the MAT. All the menu items are available for selection except when a dialog box shows on the display.
You can use the CMCS from three maintenance access terminals at the same time. These are the maintenance access terminals:
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the maintenance access terminal in the flight compartment
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the portable maintenance access terminal (PMAT) in the main equipment center
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a PMAT at one of the PMAT receptacles.
These are the main menu selections:
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LINE MAINTENANCE
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EXTENDED MAINTENANCE
