Toshiba PROL450D 用户手册
2 Troubleshooting Procedures
Satellite L450D/455D, Satellite pro L450D Series Maintenance Manual
17
2.5 Keyboard Troubleshooting
P e rfo rm e x te rn a l k e y b o a rd c h e c k
(P ro c e d u re 1 )
S T A R T
D o e s th e e x te rn a l
k e y b o a rd fu n c tio n o k ?
P e rfo rm d ia g n o s tic c h e c k
(P ro c e d u re 2 )
W a s a k e y b o a rd
p ro b le m d e te c te d ?
P e rfo rm c o n n e c to r a n d
re p la c e m e n t c h e c k
(P ro c e d u re 3 )
R e p la c e s y s te m b o a rd
E N D
Y es
N o
K e y b o a rd is n o t
fa u lty . C o n tin u e
tro u b le s h o o tin g -re fe r
to F ig u re 2 .1
N o
Y es
Figure 2-4 Keyboard troubleshooting process