Dell 5535dn Service Manual page 430

4. Remove the cover strip (C) from the operator panel assembly.
5. Remove the three screws (D) securing the operator panel assembly.
6. Slide the operator panel assembly to the left.
7. Rotate the operator panel assembly upside down, and remove the three screws (E).
C
D
E
8. Separate the lower panel from the upper panel.
9. Disconnect the operator panel and cave light harnesses.
10. Remove the operator panel assembly.
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Service Manual