T200/T200CS
2-25
2.7
Keyboard Troubleshooting
To determine if the keyboard is functioning properly, perform the following procedures. Start
with Procedure 1 and continue as instructed.
Procedure 1:
Functioning Keyboard Check
Procedure 2:
External Keyboard Connection Check
Procedure 3:
Diagnostic Test Program Execution Check
Procedure 1
Functioning Keyboard Check
Connect a functioning keyboard to the computer's KB port. Check the keyboard's functions.
If the keyboard is functioning properly, the user's keyboard is malfunctioning. If the keyboard
is not functioning properly, go to Procedure 2.
Procedure 2
External Keyboard Connection Check
Make sure the external keyboard cable is firmly connected to the KB port. If this cable is
disconnected or loose, connect it to the KB port. If the external keyboard still does not
function properly, go to Procedure 3.
Procedure 3
Diagnostic Test Program Execution Check
Execute the Keyboard Test in the Diagnostic Program. Refer to Chapter 3,
Tests and
Diagnostics
, for more information on how to perform the test program.
If an error occurs, replace the upper system board with a new one and re-start the system. If
the problem still exists, replace the lower system board.
Содержание T200
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Страница 153: ...T200 T200CS B 1 Appendix B Board Layout B 1 Upper System Board FOGSD2 Figure B 1 Upper System Board FOGSD2 Front ...
Страница 154: ...B 2 T200 T200CS Figure B 2 Upper System Board FOGSD2 Back ...
Страница 156: ...B 4 T200 T200CS B 2 Lower System Board FOGSU2 Figure B 3 Lower System Board FOGSU2 Front ...
Страница 157: ...T200 T200CS B 5 Figure B 4 Lower System Board FOGSU2 Back ...
Страница 170: ...T200 T200CS D 1 Appendix D USA Display Codes Table D 1 USA Display Codes ...