The Tech Bench

A MacBook Air in the process of screen replacement.

MacBook Air’s are a great lightweight Mac laptop. Unfortunately, we see quite a few in with cracked or damaged screens.

The above MacBook Air is getting its LED screen replaced and we thought it was a good time to point out what lies beneath the display bezel.

1. Display Connection – This is the cable that provides the power and signal from the logic board to the LED.

2. Latch Magnets – These allow the Air’s lid to stay shut when closed. There are a set on each side.

3. Ambient Light Sensor (ALS) – This sensor lets the laptop know when the lights are dimmed . The system then lowers the screen brightness and turns on the back-lit keyboard. To turn the backlit keyboard on in a bright room, just place your thumb over the left side of the iSight camera to cover the ALS.

4. iSight Camera - The iSight camera assembly can be seen here with it’s light to the right of the camera.

5. Microphone - The mic assembly can be seen here.

6. Sleep Magnet - The sleep magnet activates sleep mode when the lid is closed. As the magnet gets close to the top case, there is a switch in the top case with two metal flaps that connect when the magnet  is in close proximity, thus putting the machine to sleep. When the lid is opened, the two metal flaps in the sleep switch in the top case re-open (their natural state) and the machine turns back on.

Once the display bezel is removed (a tricky process,) a new LED screen is installed and tested (the point the above Air is in) and the bezel is re-attached. Good as new.

[ MyService Screens Page ]