Toshiba Satellite M20, Maintenance Manual

Page: 129 / 296

3 Diagnostic Programs 3.10 Peripheral
3.10 Peripheral
Subtest 01 Keyboard
This test item is to check whether the keyboard works normally.
1. Keyboard Map
This test item is to check whether each key in the keyboard works normally.
It requires user to press the key and check whether the key in the screen has been
changed in color. User can terminate test by typing ‘
E ’ ,‘ N ’ ,‘ D ’
.
It should be noted that ‘ Fn ’ key must be tested by pressing together with ‘ Enter ’
key
(
while holding down ‘ Fn ’ key, press down ‘ Enter ’ key).
When the user has checked all the keys and all the keys in the screen have been
changed in color, the diagnostics program would automatically ends the test and
reports the pass information.
Whether keyboard test failure, program can terminated the test and report the fail
information when it is time to timeout.
2. Keyboard Clock Line Test
Check whether the keyboard clock line works normally
3. Keyboard data Line Test
Check whether the keyboard data line works normally
54 Satellite M20 Maintenance Manual