Acer Aspire One D255 Series User Manual

Aspire One D255 Series
Service Guide
PRINTED IN TAIWAN
Service guide files and updates are available
on the ACER/CSD web; for more information,
please refer to http://csd.acer.com.tw

Acer Aspire One D255 Series Specifications

General

Storage	160GB/250GB HDD
Graphics	Intel GMA 3150
Operating System	Windows 7 Starter / Windows XP Home / Linux
Wireless	802.11b/g/n Wi-Fi
Webcam	0.3 MP
Processor	Intel Atom N450/N455 or N550
RAM	1GB
Display	10.1-inch, 1024x600 resolution
Battery	3-cell or 6-cell Li-ion
Weight	1.25 kg (2.76 lbs)

Summary

System Specifications

System Block Diagram

Hardware Specifications and Configurations

Provides detailed hardware specifications for the processor, memory, interfaces, and other system components.

System Utilities

BIOS Setup Utility

Security

BIOS Flash Utility

Provides instructions and conditions for updating the system BIOS flash ROM.

DOS Flash Utility

WinFlash Utility

Remove HDD/BIOS Password Utilities

Creating a USB Flash Crisis Disk

Machine Disassembly and Replacement

Disassembly Requirements

Lists the necessary tools for disassembling the computer, such as screwdrivers and plastic tweezers.

External Module Disassembly Process

Removing the Battery Pack

Removing the Keyboard

Removing the HDD Module

Removing the WLAN Module

Main Unit Disassembly Process

Removing the Upper Cover

Removing the Mainboard

Detailed instructions on how to disconnect cables and remove the mainboard.

Removing the LCD Module

Removing the LCD Panel

Main Module Reassembly Procedure

Replacing the HDD Module

Replacing the Keyboard

Replacing the Battery

Troubleshooting

Common Problems

Provides a guide for common computer problems with a table linking symptoms to relevant pages.

Power On Issue

Troubleshooting steps if the system does not power on, emphasizing not replacing non-defective FRUs.

No Display Issue

Steps to resolve issues where the display does not work, including checking panel and cable connections.

No POST or Video

Guidance for when the POST or video display fails, suggesting checks for power and display output.

Abnormal Video Display

Random Loss of BIOS Settings

LCD Failure

Troubleshooting steps for LCD failures, focusing on checking module and cable integrity.

Built-In Keyboard Failure

Steps to resolve issues with a failed built-in keyboard, checking FPC connection and keyboard integrity.

Touch Pad Failure

Troubleshooting for touchpad malfunctions, involving checks of the FFC and logic board.

Internal Speaker Failure

Steps to diagnose and fix internal speaker failures, checking mainboard and speaker cable connections.

Sound Problems

Internal Microphone Failure

Troubleshooting for internal microphone failures, including checking enablement and audio properties.

HDD Not Operating Correctly

Steps to resolve issues with the Hard Disk Drive not operating correctly, including startup repair.

Wireless Function Failure

Troubleshooting steps for wireless LAN failures, involving antenna and card checks.

Jumper and Connector Locations

Clearing Password Check and BIOS Recovery

Provides procedures for clearing passwords and recovering BIOS using hardware jumpers or crisis disks.

BIOS Recovery by Crisis Disk

FRU (Field Replaceable Unit) List

Exploded Diagrams

Aspire D255 FRU List

Lists Field Replaceable Units (FRUs) for the Aspire D255 model, categorized by component type.

Model Definition and Configuration

Aspire D255 Model Configurations

Details various configurations of the Aspire D255 model, including region, BOM name, CPU, and LCD.