This test makes sure the power-on self-tests run correctly. The approximate time to run the test is one to three minutes.
You must do this test from a portable maintenance access terminal.
MAT Display Brightness System Test
This test makes sure the brightness control analog inputs operate correctly. The approximate time to do the test changes based on the operator.
You must do this test from a portable maintenance access terminal.
MAT Display Unit Graphical Pattern System Test
This test makes sure the graphics capability of the display operates correctly. The approximate time to do the test changes based on the operator.
You must do this test from a portable maintenance access terminal.
MAT Cursor Control Unit System Test
This test makes sure the maintenance access terminal cursor controller operates correctly. The approximate time to do the test changes based on the operator.
For this test, you will move the cursor control and look at the results on the display.
MAT Standard Disk Drive System Test
This test makes sure the standard disk drive operates correctly by writing to a diskette and reading back the results. The approximate time to do the test is less than one minute.
For this test, you will insert a formatted, writable diskette into the standard disk drive.
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MAT AVLAN System Test
This test makes sure the avionics local area network (AVLAN) interface to the MAT display unit functions correctly. The approximate time to do the test is less than one minute.
You must do this test from a portable maintenance access terminal.
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CMCS -MAINTENANCE ACCESS TERMINAL -LRU REPLACEMENT TESTS
General
There is one LRU replacement test for the maintenance access terminal (MAT). It is the MAT display unit LRU replacement test.
MAT Display Unit LRU Replacement Test
The MAT display unit LRU replacement test does a check of the fiber optics interface between the display unit and the avionics local area network (AVLAN). It also does a check of the interface between the display unit and other MAT functions.
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