HP Compaq Presario,Presario R4000 Maintenance And Service Manual page 129

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CAUTION: Support the display assembly when removing the following
screws. Failure to support the display assembly can result in damage to
the display assembly and other notebook components.
20. Remove the four PM2.0×7.0 screws 1 that secure the display
assembly to the notebook.
21. Remove the display assembly 2.
Removing the Display Assembly, Compaq Presario R4000 Models
Reverse the above procedure to install the display assembly.
Maintenance and Service Guide
Removal and Replacement Procedures
5–39