UpgradesModem Card - 1
| Modem Card | |
| Before you begin, remove | |
| the following: | |
| • Main battery | |
| • I/O door | |
Modem Card | • 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. |
