Chapter2 Troubleshooting Procedures
Satellite U400/Satellite Pro U400/PORTEGE M800
Maintenance Manual 2-31
2.7 Keyboard Troubleshooting
To check if the computer’s keyboard is malfunctioning or not, follow the troubleshooting
procedures below as instructed.
Procedure 1: Diagnostic Test Program Execution Check
Procedure 2: Connector and Replacement Check
Procedure 1
Diagnostic Test Program Execution Check
Execute the Keyboard Test (DIAGNOSTIC TEST) and Pressed key display test (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, keyboard is functioning
properly.
Summary of Contents for Satellite Pro U400 Series
Page 110: ...Test Program for Field Satellite U400 and Satellite Pro U400 Tests and Diagnostics Manual 17 ...
Page 168: ...Replacement Procedures Satellite U400 Satellite Pro U400 PORTEGE M800 Maintenance Manual 4 iv ...
Page 276: ...Pin Assignment 36 Satellite U400 Satellite Pro U400 PORTEGE M800 Maintenance Manual ...
Page 302: ...Wiring Diagrams F 2 Satellite U400 Satellite Pro U400 PORTEGE M800 Maintenance Manual ...