Compaq Armada 1120T Guide de dépannage télécharger pdf (Page 12)

Computer Design Overview

This section presents a brief design overview of the computer. See Chapter

3 for an overview of the system unit and the display assembly from the

perspective of replacing components in the field. All replacement parts

are listed in Chapter 3, and removal and replacement procedures are

presented in Chapter 5.

The computer is a traditional clam shell design with a display unit and a

system unit. The computer opens to reveal a backlighted LCD display and a

full-sized keyboard. The display is designed to open to 135o.

System Unit

The major components of the system unit are: the CPU cover, keyboard,

system board with processor, hard drive, diskette drive, memory expansion

board, battery pack and compartment, integrated trackball assembly,

Real-Time Clock battery, and PC Card (PCMCIA) ejector rails and

components.

Display Unit

The standard video subsystem consists of one of the following internal LCD

displays:

o 10.4-inch VGA CSTN display panel

o 10.4-inch VGA CTFT display panel

In addition, the video subsystem consists of:

o Cirrus Viking PCI Bus Graphics Accelerator with 1 MB EDO (two 70-ns

256kx 16) VRAM

o An inverter to supply AC power to the LCD backlight system

o A standard external VGA connector for use with CRTs and other VGA

compatible displays; also supported: external SVGA (maximum resolution

1024 x 768 x 256)

o A flex cable connecting the system board to the LCD display and the

inverter

o 48 KB of video ROM integrated into system ROM

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Compaq Armada 1120T Guide de dépannage Page 12