The Topcase Service Assembly does not include the display contrast controls. If the topcase needs to be replaced, be sure to order the contrast controls as well. The Topcase Service Assembly includes all the labels normally on the topcase.
The Bottom Service Assembly contains all the labels normally on the bottom case as well as the Security Plate (located inside the Kensington Lock slot) and the Battery Door Latches. The speaker (shown on next page), the Pivot Door and Spring (shown below) must be ordered separately.
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