March 24, 2001
Having had to replace a snapped-off key on my Powerbook 2400 tonight, I have added more detail to the instructions given by other listers. Here are my detailed instructions. After them, I have pasted in the instructions given by others. If you own a Powerbook 2400, I suggest you file the following text in a good place....
Step 1. As others have advised, if it is still attached, you should remove the white plastic "scissors thingy" ("scissors") from the key cap.
Step 2. If necessary, replace the rubber spring. This goes into the hole with the large side down; that is, it is positioned like an inverted bowl. The rim of the bowl goes down inside the hole which holds the spring in, place; squeeze it and work it in with a sharp tool.
Step 3. Position the white scissors. Note that it has four ends. The correct position is:
a) The end with the two legs is the bottom rear (goes on the compute closest the screen).b) The end with the thin bar is the bottom front (goes on the computer closest the trackpad).
c) The end with the three legs is the top rear (goes on the key closest the screen).
d) The end with the wide flat bar is the top front (goes on the key closest the trackpad).
Step 4. Snap on the bottom rear (a).
Step 5. Snap on the bottom front (b).
Step 6. Test the installation by pushing on the scissors; it should go down and then spring back up. Open an application and verify that the computer responds appropriately when you push down on the scissors, as though it were the key.
Step 7. Position the key cap exactly where it should be, and push down while rocking slightly back and forth and side to side, until it snaps into place.