Toshiba Satellite Series Maintenance Manual page 39

2 Troubleshooting Procedures
A
Does typed characters appear correctly?
Insert USB memory disk. 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
End
Satellite L550/ProL550 Series Maintenance Manual
W X Y
W X Y
` a
Figure 2-1 Troubleshooting flowchart (2/2)
Perform the Keyboard
` a
Troubleshooting procedures
in section 2.6
Perform the FDD
` a
Troubleshooting procedures
in section 2.5
After confirming which
diagnostics test has detected
W X Y
an error, perform the
appropriate procedure as
outlined below.
6