Toshiba Satellite U940 - USB3.0&USB2.0 Troubleshooting

Troubleshooting Procedures
Satellite U900/U940/U945 Series Maintenance Manual
38
2.16 USB3.0&USB2.0 Troubleshooting
S T A R T
P erfo rm U S B 3 .0 & USB2. 0 d evic e c h ec k
(P ro ced u re 1 )
Is U S B 3.0 tran s m iss io n o k ?
P erfo rm d ia g no stic c h ec k
(P ro ced u re 2 )
W a s a n U S B 3.0 & U S B 2.0 p ro b le m d etecte d ?
P erfo rm c o nn e c tio n an d rep la c e m en t c h e c k
(P ro ced u re 3 )
R ep la c e s y ste m b o ard
E N D
Y e s
Y e s
U S B 3.0 & U S B 2 .0 po rt
an d tran s m is sio n a re
n o t fau lty . C o n tin ue
tro ub le sho o tin g - refe r
to F ig u re 2 .1
No
No
Figure 2-15 USB3.0 troubleshooting process