Acer AL2051W Service Manual page 29

7. Disconnect the wire harnesses of main board and panel, main board and power board. (Fig 7)
8. Remove four screws. (Fig 8)
9. Pry the main frame on the left to remove bezel. (Fig 9.1)
Pry the main frame on the right to remove bezel. (Fig 9.2)
All manuals and user guides at all-guides.com
Fig 7
Fig 8
Fig 9.1