Latitude 3120/Latitude 3120 2-in-1 Service Manual

Removing the touch-panel assembly

1. Place the display assembly on a flat surface. Open the display hinge caps to 90 degrees and open the display hinges to 180 degrees.
2. Open the display hinge caps to 180 degrees and place the display hinges over the edge of the table.
3. Use a plastic scribe to pry open the display assembly, starting from the U-shaped recesses near the hinges at the bottom edge of the display assembly.
4. Pry open the bottom side of the display assembly.
5. Adjust the display hinge caps to 90 degrees and the display hinges to 180 degrees so that the display assembly can lay flat on the surface.
6. Lift and remove the touch-panel assembly from the display cover.
7. Gently flip over the display panel assembly and place it on a flat surface.
   CAUTION The display cable is not long enough to completely flatten the panel. Technicians must move the touch-panel assembly underneath the display hinges.
8. Peel off the mylar tape that secures the display cable on the rear of the display panel.
9. Peel off the rubber sticker from the display cable connector.
10. Disconnect the display cable from the connector on the display panel.
11. Peel off the tape that secures the connector on the touch control board.
12. Disconnect the display cable from the connector on the touch control board.
13. Lift and remove the touch-panel assembly.