Dell Latitude E5420 (Early 2011) - Manual (Page 135)

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Display Panel
Removing the Display Panel
1. Follow the procedures in Before Working On Your Computer .
2. Remove the battery .
3. Remove the display bezel .
4. Remove the screws that secure the display panel.
5. Disconnect the low-voltage differential signaling (LVDS) cable from the back of the display panel.
6. Remove the display panel from the display assembly.
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