Keypad Test - Motorola iDen i850 Field Service Manual

8.9

Keypad Test

Use this test to check the operation of the unit's keypads and display. Symptoms: unit locked, or
stuck key
.
Power up
the unit.
Enter the Model Assembly
(MA) Test Mode.
Verify
that all the
display tests complete
correctly.
Pass
Proceed
to the MA Test
Mode Keypad Test,
and press all the main keypad
keys to ensure they
are working
correctly.
Pass
Unit passed test.
68P80400P94-O
FIELD LEVEL TEST MODES AND PROCEDURES: Keypad Test
Swap the Display module
Fail
and the Main board one
at a time in sequence until
the display lights up.
Fail
Replace the Main
board, and repeat the test.
Rerun
Pass
the MA Test Mode
Keypad Test for the
main keypad.
Fail
Replace the
Main board.
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