Toshiba PRO L645 用户手册
Board Layout
<Back layout>
CN1
D4
D3
D2
CN3
U2
Figure B-4-3 CRT/USB Board layout (Back)
NUM Location Function
(01) CN1 CRT
CONN
(02) CN3 USB
CONN
(03)
U2
USB Power IC
(04)
D2
USB DATA- ESD Diode
(05)
D3
USB DATA+ ESD Diode
(06)
D4
USB Power ESD Diode
Table B-4-4 CRT/USB Board components
Satellite L600/L640/L645, Satellite Pro L600/Pro L640/Pro L645 Maintenance Manual (960-Q08)