HP ProOne 400 G2 20 inch All-in-One HP ProOne 460 G2 20 inch All-in-One HP ProOne 480 G2 20 inch All-in-One - Maintenance & Service Guide

15. Separate the main frame from the bezel.
Tab location under system board:
16. To separate the display panel from the main frame:
a. Disconnect the backlight cable from the rear of the display panel .
b. Remove the three Torx screws from the frame (1).
66 Chapter 4 Removal and Replacement Procedures