User's Manual
 Take Apart Inverter Board - 25
Inverter Board
Before you begin, remove 
the following:
• Main battery
• I/O door
• Top case
Caution:
 The PowerBook 
140/145/170 contains 
CMOS devices that are very 
susceptible to ESD damage. 
To prevent damage, wear a 
grounding wriststrap. 
Review the ESD precautions 
in Bulletins/Safety.
Inverter Board










