![](/images/new-backgrounds/1265415/265415183x1.webp)
Take ApartActuators - 34
Actuators
Actuators
Before you begin, remove the following:
• Main battery
• I/O door
• Top case
• Inverter board
Caution: The PowerBook140/145/170 contains CMOS devices that are very susceptible to ESD damage. To prevent damage, wear a grounding wriststrap. Review the ESD precautions in Bulletins/ Safety.