![](http://pdfasset.owneriq.net/6/f6/6f625eb6-6344-4951-af4f-4acb9513ebb8/6f625eb6-6344-4951-af4f-4acb9513ebb8-bge4.png)
Upgrades 2300 Series Upgrade - 31
• Remove the trackball
• Remove the display/CPU
stiffener assembly
• Remove the logic board
• Remove the microphone
cable, on-off board (or
modem), and optional
RAM from the logic board
Caution:
The PowerBook
Duo contains CSMOS devices
that are very susceptible to
ESD damage. Review the ESD
precautions in Bulletins/
Safety.