Toshiba Satellite M640 Maintenance Manual page 38

2 Troubleshooting Procedures
Does typed characters appear correctly?
Insert Test Media,
Then run the diagnostics test program.
Is the diagnostics test loaded?
Allow each test to perform
automatically
Is an error detected by any of the
diagnostics tests?
System is normal
Satellite/Satellite Pro M600/M640/M645/M647 Series/Dynabook TX/AX Series Maintenance Manual
A
Yes
Yes
Yes
No
End
Figure 2.2-2 Troubleshooting flowchart (2/2)
Perform the Keyboard
No
Troubleshooting procedures
in section 2.6
Perform the USB memory
No
Troubleshooting procedures
in section 2.5
After confirming which
diagnostics test has detected
Yes
an error, perform the
appropriate procedure as
outlined below.
disk
6