2
Troubleshooting
2.7
Keyboard Troubleshooting
2.7 Keyboard
Troubleshooting
To determine if the computer’s keyboard 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 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 System board may be disconnected or damaged. Disassemble the computer
following the steps described in Chapter 4,
Replacement Procedures
and perform the
following checks:
Check 1 Make sure the keyboard cable is firmly connected to the System board.
PJ445
System
Keyboard
If the connection is loose, reconnect firmly and repeat Procedure 1. If there is still
an error, go to Check 2.
Check 2 The keyboard may be damaged. Replace it with a new one following the
instructions in Chapter 4,
Replacement Procedures
. If the problem still exists,
perform Check 3.
Check 3 The System board may be damaged. Replace it with a new one following the
instructions in Chapter 4,
Replacement Procedures
.
2-36
PORTEGE R100 Maintenance Manual (960-440)
Summary of Contents for Portege R100
Page 9: ...Chapter 1 Hardware Overview ...
Page 10: ...1 Hardware Overview 1 Hardware Overview 1 ii PORTEGE R100 Maintenance Manual 960 440 ...
Page 31: ...Chapter 2 Troubleshooting Procedures ...
Page 32: ...2 Troubleshooting Procedures 2 2 ii PORTEGE R100 Maintenance Manual 960 440 ...
Page 36: ...2 Troubleshooting Procedures 2 vi PORTEGE R100 Maintenance Manual 960 440 ...
Page 87: ...Chapter 3 Tests and Diagnostics ...
Page 88: ...3 Tests and Diagnostics 3 3 ii PORTREGE R 100 Maintenance Manual 960 440 ...
Page 163: ...3 24 SETUP 3 Tests and Diagnostics PORTEGE R100 Maintenance Manual 960 440 3 73 ...
Page 164: ...Chapter 4 Replacement Procedures ...
Page 165: ...4 Replacement Procedures 4 4 ii PORTEGE R100 Maintenance Manual 960 440 ...
Page 229: ...Appendices ...
Page 230: ...Appendices App ii PORTEGE R100 Maintenance Manual 960 440 ...
Page 236: ...Appendices App viii PORTEGE R100 Maintenance Manual 960 440 ...
Page 242: ...Appendices Apx A Handling the LCD Module A 6 PORTEGE R100 Maintenance Manual 960 440 ...
Page 274: ...Appendices 1 Pin Assignment 1 26 Portégé R100 Maintenance Manual 960 440 ...
Page 286: ...Appendices Apx E Key Layout E 2 PORTEGE R100 Maintenance Manual 960 440 ...
Page 288: ...Appendices Apx F BIOS KBC EC Update F 2 PORTEGE R100 Maintenance Manual 960 440 ...
Page 290: ...Appendices Apx G Reliability G 2 PORTEGE R100 Maintenance Manual 960 440 ...
Page 292: ...Appendices Apx H Key FD H 2 PORTEGE R100 Maintenance Manual 960 440 ...