HP Compaq Presario,Presario C300 Maintenance And Service Manual page 121

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Before disconnecting the antenna cables, make note of which
cable is attached to which antenna clip on the Mini Card
module.
3. Disconnect the auxiliary and main wireless antenna cables 1
from the Mini Card module.
4. Remove the two Phillips PM2.5×13.0 screws 2 that secure
the display assembly to the computer.
Disconnecting the Wireless Antenna Cables and Removing the
Display Screws
Maintenance and Service Guide
Removal and Replacement Procedures
5–27