![](/images/new-backgrounds/1265415/265415185x1.webp)
Take Apart | Actuators - 35 | |
| Note: The PowerBook 170 |
|
| has a brightness actuator | |
| only (contrast is preset). | |
| The PowerBook 140 has | |
| both contrast and | |
| brightness actuators. | |
| Pull up and rotate the | |
| actuator toward the display | |
| to remove it from the top | |
| case. |