13.
If it is necessary to remove the display panel from the enclosure, remove the 4 Phillips PM2.0×3.0
screws (1) that secure the panel to the display enclosure, and then lift the top of the panel upward (2).
The raw display panel is available using spare part numbers:
768135-001 for HD, flat panels in HP 450 models
768468-001 for FHD, slim panels on HP 450 models
773072-001 for HD, flat panels on HP 455 models
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Chapter 6 Removal and replacement procedures for Authorized Service Provider parts