Toshiba Satellite Pro A500D series, Maintenance Manual

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2 Troubleshooting Procedures
2.5 Keyboard Troubleshooting
P e r f o r m e x t e r n a l k e y b o a r d c h e c k
( P r o c e d u r e 1 )
S T A R T
D o e s t h e e x t e r n a l
k e y b o a r d f u n c t i o n o k ?
P e r f o r m d i a g n o s t i c c h e c k
( P r o c e d u r e 2 )
W a s a k e y b o a r d
p r o b l e m d e t e c t e d ?
P e r f o r m c o n n e c t o r a n d
r e p l a c e m e n t c h e c k
( P r o c e d u r e 3 )
R e p l a c e s y s t e m b o a r d
E N D
Y e s
N o
K e y b o a r d i s n o t
f a u l t y . C o n t i n u e
t r o u b l e s h o o t i n g - r e f e r
t o F i g u r e 2 . 1
N o
Y e s
Figure 2-4 Keyboard troubleshooting process
To determine if the computer’s keyboard is functioning properly, perform the following
procedures. Figure 2-4 outlines the process. Start with Procedure 1 and continue with the
other procedures as instructed.
Procedure 1: External keyboard check
Procedure 2: Diagnostic check
Procedure 3: Connector and replacement check
Satellite A500D/Satellite A505D/Satellite A507D/Satellite Pro Series Maintenance Manual
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