6
The system is normal.
YES
2 Troubleshooting 2.2 Basic Flowchart
NO
YES
YES
NO
YES
NO
1
Insert Bootable USB Memory into USB Port.
1
Diagnostic Program
Perform each test with the
Follow the keyboard diagnostic
Procedure in Section 2.6
Identify the test resulting in the
error and perform the appropriate
Diagnostic procedures
Any error is detected by
the diagnostic program?
Perform the continuous test to check if the
error is intermittent
Any error is detected by
the diagnostic program?
Identify the test resulting in the
Error and perform the appropriate
Diagnostic procedures