Product Description

1.4 Design Overview

This section presents a design overview of key parts and features of the expansion base. Refer to Section , “Illustrated Parts Catalog,” to identify replacement parts, and Section , “Removal and Replacement Procedures,” for disassembly steps.

The expansion base provides the following device connections:

■Expansion cable

■S/PDIF (Sony/Philips Digital Interface) audio connector

■Audio-out (headphone) jack

■Composite out

■RJ-11 (modem) connection (from wall to expansion base)

■RJ-11 (modem) connection (from expansion base to computer)

■RJ-45 (network) port

■USB 2.0 connectors (3)

■S-Video-out

■Serial port

ÄCAUTION: To properly ventilate the expansion base, allow at least a 7.6-cm (3-inch) clearance on the left and right sides of the unit.

The computer uses an electric fan for ventilation. The fan is controlled by a temperature sensor and is designed to turn on automatically when high temperature conditions exist. These conditions are affected by high external temperatures, system power consumption, power management/battery conservation configurations, battery fast charging, and software.

Maintenance and Service Guide

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