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PowerBook G4 (15-inch FW 800_1.5/1.33GHz) Adjustments -
1
Latch Adjustment
Latch Adjustment
Overview
If the display latch does not secure the display to the top case, or releases before the latch
button is pushed, an adjustment to the latch hook can be made to correct this. Alternately,
the computer can be sent to the Apple Repair Center for service.
The display latch consists of a latch mechanism under the top case (it’s actually attached
to the bottom case frame) and a pivoting latch hook within the display assembly. The hook
is pulled down into the latch mechanism by a magnet as it approaches the top case, and is
secured under an overhang on the latch mechanism.
Tools
This procedure requires the following tools:
• Black stick (or other non-marring nylon or plastic pointed tool)
• Magnet
Preliminary Steps
Warning: While performing the following procedures, notice the hook as it is pulled
out of the display housing and into the slot in the top case. If an adjustment to the
latch hook is performed later, the hook must be adjusted only very slightly, to stay
within the slot on the top case.
Before performing the latch adjustment, test the current operation of the latch:
1. Push the display down to about two inches from the top case. Then push the display
very slowly until it just touches the top case, and immediately release.
If working properly, the latch should secure the display to the top case through the
following tests:
• Pound on the table top, left and right of the computer.
• Pull up on the sides of the display.
Repeat the above procedures several times to verify the operation of the latch.
2. Whether or not the latch functioned properly, use the following procedures to achieve
or verify proper latching function.