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Upgrades Modem Card - 1
Modem Card
Before you begin, remove
the following:
• Main battery
• I/O door
• Top case
Caution:
The PowerBook
140/145/145B/170
contains CMOS devices that
are very susceptible to ESD
damage. To prevent ESD
damage, wear a grounding
wriststrap. Review the ESD
precautions in Bulletins/
Safety.
Modem Card