Acer Aspire E1-471 Acer Aspire E1-431 and E1-471 Notebook Service Guide - Page 112

4. Lift up the upper case by starting from the top edge of the upper case. Refer to Figure 3-20. 5. Release the tabs on the bottom edge of the upper case. 6. Grasp and remove the upper case from the system. Figure 3-20. Upper Case Removal Upper Case Installation 0 1. Place the upper case on the base assembly and align it properly to the edge of the system. Refer to Figure 3-20. 2. Install and secure two (2) screws (C) to the upper case (Figure 3-19). 3. Connect touchpad FPC (A) to mainboard connector (B). Refer to Figure 3-19. 4. Install and secure eighteen (18) screws to the base assembly. Refer to Figure 3-18. 5. Install Keyboard and Base Door. ID Red Call out Green Call out C Size M2.5*6 M2*3 M2.5*6 Quantity 13 5 2 Screw Type 3-22 Machine Maintenance Procedures