User Guide

2 Troubleshooting
Procedures
2.4 Display Troubleshooting
Perform external
display check
(Procedure 1)
START
Does the external
display function ok?
Perform diagnostic
check
(Procedure 2)
No
W as a display
problem detected?
Perform connector and
replacem ent check
(Procedure 3)
Replace system board
END
Yes
Yes
No
Display is not
faulty. Continue
troubleshooting
-refer to Figure
2-1
Figure 2-3 Display troubleshooting process
Satellite L670/L675/ProL670 Series Maintenance Manual [CONFIDENTIAL] 2-iii