HP 550 Maintenance And Service Manual page 66

13. Disconnect the display panel cable (2) and the backlight cable (3) from the display inverter.
14. Remove the display inverter. The display inverter is available using spare part number
456618-001.
15. If it is necessary to replace the display hinges, remove the four Torx T8M2.5×6.0 screws (1) that
secure the display panel to the display enclosure.
16. Remove the display panel (2).
17. Remove the four Phillips PM2.0×4.0 screws (1) that secure each display hinge to the display
panel.
58 Chapter 4 Removal and replacement procedures