2 Troubleshooting Procedures
2.7 Keyboard
and
Touch pad Troubleshooting
To determine if the computer’s keyboard or touch pad is functioning properly, perform the
following procedures. Start with Procedure 1 and continue with the other procedures as
instructed.
Procedure 1: Diagnostic Test Program Execution Check
Procedure 2: Connector Check and Replacement Check
Procedure 1
Diagnostic Test Program Execution Check
Execute the Keyboard Test or Only one 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, go to Procedure 2. If an error does not occur, the keyboard is functioning
properly.
Procedure 2
Connector Check and Replacement Check
The keyboard, or touch pad may be damaged. Disassemble the computer following the steps
described in Chapter 4,
Replacement Procedures
, and perform the following checks:
1.
If the keyboard malfunctions, start with Check 1.
2.
If the touch pad malfunctions, start with Check 3.
Check 1 Make sure the keyboard cable is securely connected to CN3230 on the system
board.
If the connection is loose, reconnect firmly and go to Procedure 1. If there is still
an error, go to Check 2.
Check 2 The keyboard or its cable may be damaged. Replace it with a new one following
the instructions in Chapter 4,
Replacement Procedures
. If the problem still exists,
perform Check 5.
PORTEGE R400 Maintenance Manual (960-623)
[CONFIDENTIAL]
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Содержание Portege R400 Series
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Страница 11: ... CONFIDENTIAL Chapter 1 Hardware Overview ...
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Страница 35: ... CONFIDENTIAL Chapter 2 Troubleshooting Procedures ...
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Страница 107: ... CONFIDENTIAL Chapter 3 Tests and Diagnostics ...
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Страница 214: ... CONFIDENTIAL Chapter 4 Replacement Procedures ...
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Страница 289: ...4 Replacement Procedures 4 26 Digitizer NO 4 70 CONFIDENTIAL PORTÉGÉ R400 Maintenance Manual 960 623 ...
Страница 294: ... CONFIDENTIAL Appendices ...
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Страница 303: ...Appendices App x CONFIDENTIAL PORTEGE R400 Maintenance Manual 960 623 ...
Страница 309: ...Appendices Appendix A Handling the LCD Module A 6 CONFIDENTIAL PORTEGE R400 Maintenance Manual 960 623 ...
Страница 321: ...Appendices Appendix B Board Layout B 12 CONFIDENTIAL PORTEGE R400 Maintenance Manual 960 623 ...
Страница 359: ...Appendices Appendix E Key Layout E 2 CONFIDENTIAL PORTEGE R400 Maintenance Manual 960 623 ...
Страница 363: ...Appendices Appendix F Wiring diagrams F 4 CONFIDENTIAL PORTEGE R400 Maintenance Manual 960 623 ...
Страница 365: ...Appendices Appendix G BIOS rewrite procedures G 2 CONFIDENTIAL PORTEGE R400 Maintenance Manual 960 623 ...
Страница 367: ...Appendices Appendix H EC KBC rewrite procedures H 2 CONFIDENTIAL PORTEGE R400 Maintenance Manual 960 623 ...
Страница 369: ...Appendices Appendix I Reliability 2 CONFIDENTIAL PORTEGE R4000 Maintenance Manual 960 623 ...