Toshiba Satellite A110 Maintenance Manual page 98

3.18 button test 3. Tests and Diagnostics
1.>If you choice "1", If the test result passes, the following display will show up:
2.> When you choice 2:
The control button test allows the user to manually test each of the five CD control buttons.
Key"WWW" need to press first. One will hear one "bi" sound when press"WWW" or "Audio"
Sound and continuously "bi" sound for another key test.
The figure below will be displayed:
3-29 Satellite A110 Series Maintenance Manual