User manual SONY VAIO PCG-GR270K DATASHEET

[. . . ] With the display open at an angle greater than 90 degrees, carefully flip the PowerBook over and lay it flat, fully on the table. Make sure the display hangs over the edge of the table and rests lightly on your lap. (Figure 1B) Important: Do not open the display farther than the angle shown. Remove the battery by sliding the battery latch to the left. [. . . ] Place your hands on the bottom case as shown (Figure 4) and push away from you until the left side releases. Figure 4 PowerBook G4 (Gigabit Ethernet) AirPort Card - 3 9. Place your hands on the bottom case as shown (Figure 5) and push away from you until the right side releases. When both sides have released, lift up on the edge of the bottom case that is closest to you; carefully and evenly pivot it over the front edge of the computer until it releases. (Figure 6) Important: Do not twist the bottom case from side to side. Slide the case forward completely before lifting it up. If you feel any resistance when lifting the bottom case, double-check to make sure the case is slid all the way forward and releases from the front edge. Figure 6 PowerBook G4 (Gigabit Ethernet) AirPort Card - 4 11. Touch the computer's inside framework (a dull gray conductive composite material) to discharge any static electricity, as shown. (Figure 7) Important: To avoid electrostatic discharge damage, always ground yourself by touching the computer's framework before you touch any parts or install any components inside the computer. To avoid static electricity building back up in your body, do not walk around the room until you have completed your installation and closed the computer. Fold the plastic tab (Figure 12B) on the AirPort Card over the top of the card. Note: The plastic tab must be folded over the card during the installation of the bottom case; otherwise you will not be able to securely attach the bottom case to the computer. Figure 12 E B D C A PowerBook G4 (Gigabit Ethernet) AirPort Card - 8 Closing the Computer 1. To replace the bottom case, place it over the bottom of the computer in the same orientation as the original bottom case. Align the notches on the right and left sides of the case (some of these can be viewed through the battery opening). Then press down and toward you slightly to secure the case. Important: Make sure that the seams between the bottom case and the frame are closed. Verify that the case lies flat and fits properly around the battery latch and that the alignment tab that protrudes on the underside of the bottom case, shown in the illustration (Figure 13A), is seated properly. Note: To help with alignment, apply pressure to the bottom case at the back of the battery compartment opening, near the latch, and on the front and back outside edges of the case. Check that the eight screw holes on the case align with the holes on the computer. Replace the eight screws in the order shown in the illustration (Figure 13). [. . . ] Verify that the bottom case is flush with the front edge of the slot. If the case is slightly bowed and there is a gap near the center of the slot, carefully pull the bottom edge of the slot until it clicks into place and becomes flush with the bottom case. (Figure 15) Figure 15 ® PowerBook G4 (Gigabit Ethernet) AirPort Card - 10 7. Reconnect the power cord and any other cables that were connected, and restart your computer. [. . . ]