Acer Emachines em250 Service Manual

eMachines eM250 Series

Service Guide

Service guide files and updates are available on the ACER/CSD web; for more information, please refer to http://csd.acer.com.tw

PRINTED IN TAIWAN

Revision History

Please refer to the table below for the updates made to this service guide.

Date	Chapter	Updates

II

Copyright

Copyright © 2009 by Acer Incorporated. All rights reserved. No part of this publication may be reproduced, transmitted, transcribed, stored in a retrieval system, or translated into any language or computer language, in any form or by any means, electronic, mechanical, magnetic, optical, chemical, manual or otherwise, without the prior written permission of Acer Incorporated.

Disclaimer

The information in this guide is subject to change without notice.

Acer Incorporated makes no representations or warranties, either expressed or implied, with respect to the contents hereof and specifically disclaims any warranties of merchantability or fitness for any particular purpose. Any Acer Incorporated software described in this manual is sold or licensed "as is". Should the programs prove defective following their purchase, the buyer (and not Acer Incorporated, its distributor, or its dealer) assumes the entire cost of all necessary servicing, repair, and any incidental or consequential damages resulting from any defect in the software.

Acer is a registered trademark of Acer Corporation. Intel is a registered trademark of Intel Corporation.

Other brand and product names are trademarks and/or registered trademarks of their respective holders.

III

Conventions

The following conventions are used in this manual:

SCREEN MESSAGES	Denotes actual messages that appear
	on screen.
NOTE	Gives bits and pieces of additional
	information related to the current
	topic.
WARNING	Alerts you to any damage that might
	result from doing or not doing specific
	actions.
CAUTION	Gives precautionary measures to
	avoid possible hardware or software
	problems.
IMPORTANT	Reminds you to do specific actions
	relevant to the accomplishment of
	procedures.

IV

Preface

Before using this information and the product it supports, please read the following general information.

1.This Service Guide provides you with all technical information relating to the BASIC CONFIGURATION decided for Acer's "global" product offering. To better fit local market requirements and enhance product competitiveness, your regional office MAY have decided to extend the functionality of a machine (e.g. add-on card, modem, or extra memory capability). These LOCALIZED FEATURES will NOT be covered in this generic service guide. In such cases, please contact your regional offices or the responsible personnel/channel to provide you with further technical details.

2.Please note WHEN ORDERING FRU PARTS, that you should check the most up-to-date information available on your regional web or channel. If, for whatever reason, a part number change is made, it will not be noted in the printed Service Guide. For ACER-AUTHORIZED SERVICE PROVIDERS, your Acer office may have a DIFFERENT part number code to those given in the FRU list of this printed Service Guide. You MUST use the list provided by your regional Acer office to order FRU parts for repair and service of customer machines.

V

VI

Table of Contents

System Specifications

1

Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1 System Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3 Your eMachines Notebook tour . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4 Front View . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4 Closed Front View . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5 Left View . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5 Right View . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6 Rear and Base View . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6 Indicators . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7 TouchPad Basics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8 Using the Keyboard . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9 Lock Keys and embedded numeric keypad . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9 Windows Keys . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10 Hot Keys . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11 Special Keys . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12

Hardware Specifications and Configurations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13

System Utilities

19

BIOS Setup Utility . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .19

Navigating the BIOS Utility . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .19

Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .20

Main . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .21

Security . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .22

Boot . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .25

Exit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .26

BIOS Flash Utility . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .27

DOS Flash Utility . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .28

WinFlash Utility . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .30

Remove HDD/BIOS Password Utilities . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .31

Miscellaneous Utilities . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .33

Machine Disassembly and Replacement	37
Disassembly Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	.37
Related Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	.37
General Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	.38
Pre-disassembly Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	.38
Disassembly Process . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	38
External Module Disassembly Process . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	39
External Modules Disassembly Flowchart . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	39
Removing the Battery Pack . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	40
Removing the Lower Covers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	41
Removing the Hard Disk Drive Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	43
Removing the DIMM Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	45
Removing the 3G Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	46
Main Unit Disassembly Process . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	48
Main Unit Disassembly Flowchart . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	48
Removing the Keyboard . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	49
Removing the Upper Cover . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	51
Removing the Power Board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	55
Removing the Bluetooth Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	57
Removing the TouchPad FFC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	58
Removing the WLAN Board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	59
Removing the USB Board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	61

VII

Table of Contents

Removing the Mainboard . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .63

Removing the RTC Battery . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .66

Removing the Thermal Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .67

Removing the Speaker Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .69

Removing the LCD Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .71

Removing the AC Power Jack . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .74

LCD Module Disassembly Process . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .75

LCD Module Disassembly Flowchart . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .75

Removing the LCD Bezel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .76

Removing the Camera Board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .78

Removing the LCD Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .79

Removing the LCD Brackets and FPC Cable . . . . . . . . . . . . . . . . . . . . . . . . . . .81

Removing the Antennas . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .83

LCD Module Reassembly Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .86

Replacing the Antennas . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .86

Replacing the LCD Cable and Brackets . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .89

Replacing the LCD Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .92

Replacing the Camera Board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .93

Replacing the LCD Bezel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .95

Main Module Reassembly Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .96

Replacing the AC Power Jack . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .96

Replacing the LCD Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .97

Replacing the Speaker Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .100

Replacing the Thermal Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .101

Replacing the Mainboard . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .102

Replacing the USB Board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .104

Replacing the WLAN Board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .105

Replacing the TouchPad FFC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .106

Replacing the Bluetooth Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .106

Replacing the Power Board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .108

Replacing the Upper Cover . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .110

Replacing the Keyboard . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .113

Replacing the 3G Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .113

Replacing the DIMM Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .115

Replacing the Hard Disk Drive Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .115

Replacing the Lower Covers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .117

Replacing the Battery Pack . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .118

Troubleshooting

119

Common Problems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .119

Power On Issue . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .120

No Display Issue . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .121

Random Loss of BIOS Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .122

LCD Failure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .123

Built-In Keyboard Failure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .123

TouchPad Failure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .124

Internal Speaker Failure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .125

Internal Microphone Failure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .127

HDD Not Operating Correctly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .128

USB Failure (Rightside) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .129

Wireless Function Test Failure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .130

3G Function Test Failure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .131

Switch Failure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .132

Thermal Units Failure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .133

Power Button Failure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .133

VIII

Table of Contents

External Mouse Failure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .134 Other Failures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .134 Intermittent Problems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .135 Undetermined Problems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .135 Motherboard CMOS Discharge . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .136 POST Code Reference Tables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .137 Sec: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .137 Memory: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .137 BDS & Specific action: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .138 Each PEIM entry point used in 80_PORT . . . . . . . . . . . . . . . . . . . . . . . . . . . . .139 Each Driver entry point used in 80_PORT . . . . . . . . . . . . . . . . . . . . . . . . . . . .139 Each SmmDriver entry point used in 80_PORT . . . . . . . . . . . . . . . . . . . . . . . .142

Jumper and Connector Locations	143
Top View . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	.143
Bottom View . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	.144
Power board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	.145
Card reader board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	.146
Clearing Password Check and BIOS Recovery . . . . . . . . . . . . . . . . . . . . . . . . . . .	.147
Clearing Password Check . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	.147
BIOS Recovery by Crisis Disk . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	.148
FRU (Field Replaceable Unit) List	149

eMachines eM250 Exploded Diagrams . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .150

Main Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .150

Rear Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .151

Upper Cover Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .152

Lower Cover Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .153

LCD Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .154

eMachines eM250 FRU List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .155

Screw List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .162

Model Definition and Configuration

164

eMachines eM250 Series . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .164

Model eM250-01G16i . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .165

Model eM250-01G25i . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .170

Model eM250-02G16i . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .171

Model eM250-02G25i . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .171

Test Compatible Components	173
Windows XP Environment Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	.174
Online Support Information	181
Index	183

IX

Table of Contents

X

Chapter 1

System Specifications

Features

Below is a brief summary of the computer’s many features:

Operating System

•Genuine Windows® 7 Starter

•Genuine Windows® 7 Home Basic (China only)

•Genuine Windows® XP Home (Service Pack 3)

Platform

•Intel® Atom™ processor

•Mobile Intel® 945GSE Express Chipset

•Mobile Intel® 82801GBM Chipset

•Acer InviLink™ 802.11b/g

System Memory

•Single channel with one soDIMM slot:

•DDR2 533/667 MHz SDRAM memory interface design

•soDIMM slot: Supports 512 MB / 1 GB / 2 GB soDIMMs for total system memory of up to 2 GB

Display and graphics

•10.1" WSVGA high-brightness (typical 180-nit) Acer CrystalBrite™ TFT LCD, 1024 x 600 pixel resolution

•Mobile Intel® 945GSE Express Chipset

Storage subsystem

•2.5" 9.5 mm 160 GB or larger hard disk drive

•Multi-in-1 card reader

Audio

•High-definition audio support

•Two built-in stereo speakers

•MS-Sound compatible

•Built-in digital microphone

Dimensions and Weight

•258.5 (W) x 184 (D) x 25.4 (H) mm

Chapter 1

1

•1.18 kg (2.62 lbs.) for SKUs with 3-cell battery pack

•1.33 kg (2.95 lbs.) for SKUs with 6-cell battery pack

Communication

•Integrated webcam, supporting 0.3-megapixel resolution

•WLAN: Acer InviLink™ 802.11b/g Wi-Fi CERTIFIED® network connection, supporting Acer SignalUp™ wireless technology

•LAN: 10/100 Mbps Fast Ethernet

•WPAN: Bluetooth® 2.0+EDR

•WWAN: UMTS/HSPA at 2100 MHz and quad-band GSM/GPRS/EDGE (850/900/1800/1900 MHz), or UMTS/HSPA at 850/1900/2100 MHz and quad-band GSM/GPRS/EDGE (850/900/1800/1900 MHz) (for 3G models)

Privacy control

•BIOS user, supervisor, HDD passwords

•Kensington lock slot

Special keys and controls

•84-key keyboard with 1.6 mm (minimum) key travel

•Touchpad pointing device with two buttons

Power

•24.4 W 2200 mAh 3-cell Li-ion battery pack, 3-hour battery life

•48.8 W 4400 mAh 6-cell Li-ion battery pack, 6-hour battery life

•57.7 W 5200 mAh 6-cell Li-ion battery pack, 7-hour battery life

•30 W adapter with power cord

I/O interface

•Multi-in-1 card reader

•Three USB 2.0 ports

•External display (VGA) port

•Headphone/speaker/line-out jack

•Microphone-in jack

•Ethernet (RJ-45) port

•DC-in jack for AC adapter

Environment

•Temperature:

•Operating: 5 °C to 35 °C

•Non-operating: -20 °C to 65 °C

•Humidity (non-condensing):

•Operating: 20% to 80%

•Non-operating: 20% to 80%

2

Chapter 1

System Block Diagram

Diamondville SC

FCBGA8

437Pins

22x22mm

page 4,5

CRT Conn

FSB

Clock Generator

H_A#(3..31)

H_D#(0..63)

CK505 page 12

400/533MHz

page 14

RGB

Calistoga GSE

Memory BUS(DDRII)

DDRII-SO-DIMM

FCBGA998

page 11

		LCD Conn.	LVDS		1.8V DDRII 400/533
Thermal Sensor				27x27mm
		page 13
EMC1402				page 6,7,8,9,10
	page 4
			DMI					USB Port X1
			X2 mode					page 28
				ICH7M			USB	I/O Board X2
			PCI-Express				HDA
								page 22
				BGA652				to I/O board
				31x31mm				CONN
								RTS5159E
				page 15,16,17,18		SATA		page 22
			10/100 Ethernet
	SDIO CONN	MINI Card x2			to I/OBoard CONN			BlueToothX1
			AR8114A					page19
	page 27				JP7	page 22
		page 19	page 24					CMOS CAM
							Aralia Codec
				LPC BUS				page13
							ALC272
							page 20	WLANX1
			Transfermer
								page19
			page 24
								WWANX1
								page19
Power ON/OFF	DC/DC Interface		RJ45
& LED CONN	page 29		page 24			AMP & INT	HeadPhone &	INT DMIC CONN
							MIC Jack
page 26						Speaker
							page 21	page 13
	3VALW/5VALW			ENE KBC	SPI	page 21
DC IN	page 33			KB926
page 31				page 25

1.5VS/0.9VS/

I/O board

BATT IN

2.5VS

SATA CONN

page 32

page 36

Int.KBD

SPI ROM

page 27

page 25

USB Port X2

CHARGER

1.8V/VCCP

Touch Pad

page 34

page 35

page 27

USB Card Reader

x1 RTS5159E

CPU_CORE

page 37

Chapter 1

3

Your eMachines Notebook tour

Front View

No.	Icon	Item	Description
1		Webcam	Web camera for video communication
2		Microphone	Internal microphone for sound
			recording.
3		Display screen	Also called Liquid-Crystal Display (LCD),
			displays computer output.
4		Bluetooth	Enables/disables the Bluetooth function.
		communication	Indicates the status of Bluetooth communication.
		switch/indicator	(only for certain models)
5		Status indicators	Light-Emitting Diodes (LED) that light up to show
			the status of the computer's functions and
			components.
6		Keyboard	For entering data into your computer.
7		TouchPad	Touch-sensitive pointing device which functions like
			a computer mouse.
8		Power indicator	Indicates the computer's power status.

4

Chapter 1

No.	Icon	Item	Description
9		Click buttons (left	The left and right buttons function like the left and
		and right)	right mouse buttons.
10		Wireless LAN/3G	Indicates the status of Wireless LAN/3G
		communication	communication. (only for certain models)
		indicator
11		Power button/	Turns the computer on and off.
		indicator

Closed Front View

No.	Icon	Item	Description
1		Wireless	Enables/disables the wireless function.
		communication
		switch

Left View

			1	2	3	4	5	6
No.	Icon			Item				Description
1			Ethernet (RJ-45)		Connects to an Ethernet 10/100-based
			port		network.
2			Ventilation slots		Enable the computer to stay cool, even after
			and cooling fan		prolonged use.
					Note: Do not cover or obstruct the fan opening.
3			External display		Connects to a display device
			(VGA) port		(e.g. external monitor, projector).
4			USB 2.0 port		Connect to USB 2.0 devices (e.g. USB mouse).
6			Microphone-in		Accepts input from external microphones.
			jack
5			Headphones/		Connects to line-out audio devices
			speaker/line-out		(e.g. speakers, headphones).
			jack

Chapter 1

5

Right View

							1		2	3	4
No.		Icon							Item	Description
1								Multi-in-1 card		Accepts Secure Digital (SD), MultiMediaCard
								reader		(MMC), Memory Stick (MS), Memory Stick PRO
										(MS PRO), xD-Picture Card (xD).
										Note: Push to remove/install the card. Only one
										card can operate at any given time.
2								USB 2.0 ports		Connect to USB 2.0 devices (e.g. USB mouse).
3								DC-in jack		Connects to an AC adapter
4								Kensington lock		Connects to a Kensington-compatible computer
								slot		security lock.

Rear and Base View

5 1

2

4

3

No.	Icon	Item	Description
1		Battery bay	Houses the computer's battery pack.
			Note: The battery shown is for reference only. Your
			PC may have a different battery, depending on the
			model purchased.

6

Chapter 1

No.	Icon			Item	Description
2				Battery lock	Locks the battery in position.
3				Ventilation slots	Vents enable the computer to stay cool, even after
					prolonged use.
					Note: Do not cover or obstruct the cooling vents.
4				Battery release	Releases the battery for removal.
				latch
5				3G SIM card slot	Accepts a 3G SIM card for 3G connectivity (only for
					certain models).

Indicators

The computer has several easy-to-read status indicators. The battery indicator is visible even when the computer cover is closed.

			Icon	Function	Description
				Bluetooth	Indicates the status of Bluetooth communication.
				Wireless LAN	Indicates the status of Wireless LAN communication.
				3G communication	Indicates the status of 3G communication.
				HDD	Indicates when the hard disk drive is active.
				Num Lock	Lights up when Num Lock is activated.
				Caps Lock	Lights up when Caps Lock is activated.
				Battery	Indicates the computer's battery status.

Chapter 1

7

TouchPad Basics

The following items show you how to use the TouchPad:

•Move your finger across the TouchPad (1) to move the cursor.

•Press the left (2) and right (3) buttons located beneath the TouchPad to perform selection and execution functions. These two buttons are similar to the left and right buttons on a mouse. Tapping on the TouchPad is the same as clicking the left button.

Function	Left Button (2)	Right Button (3)	Main TouchPad (1)
Execute	Quickly click twice.		Tap twice (at the same speed
			as double-clicking a mouse
			button).
Select	Click once.		Tap once.
Drag	Click and hold, then use		Tap twice (at the same speed
	finger on the TouchPad to		as double-clicking a mouse
	drag the cursor.		button); rest your finger on
			the TouchPad on the second
			tap and drag the cursor.
Access		Click once.
context menu

NOTE: When using the TouchPad, keep it - and your fingers - dry and clean. The TouchPad is sensitive to finger movement; hence, the lighter the touch, the better the response. Tapping too hard will not increase the TouchPad’s responsiveness.

8

Chapter 1

Using the Keyboard

Your eMachines eM250 has a close-to-full-sized keyboard and an embedded numeric keypad, separate cursor, lock, function and special keys.

Lock Keys and embedded numeric keypad

The keyboard has three lock keys which you can toggle on and off.

Lock key	Description
Caps Lock	When Caps Lock is on, all alphabetic characters typed are in uppercase.
Num Lock	When Num Lock is on, the embedded keypad is in numeric mode. The keys
<Fn> + <F11>	function as a calculator (complete with the arithmetic operators +, -, *, and /). Use
	this mode when you need to do a lot of numeric data entry. A better solution
	would be to connect an external keypad.
Scroll Lock <Fn> +	When Scroll Lock is on, the screen moves one line up or down when you press
<F12>	the up or down arrow keys respectively. Scroll Lock does not work with some
	applications.

The embedded numeric keypad functions like a desktop numeric keypad. It is indicated by small characters located on the upper right corner of the keycaps. To simplify the keyboard legend, cursor-control key symbols are not printed on the keys.

Desired access	Num Lock on	Num Lock off
Number keys on	Type numbers in a normal manner.
embedded keypad
Cursor-control keys on	Hold <Shift> while using cursor-	Hold <Fn> while using cursor-
embedded keypad	control keys.	control keys.
Main keyboard keys	Hold <Fn> while typing letters on	Type the letters in a normal
	embedded keypad.	manner.

Chapter 1

9

Windows Keys

The keyboard has two keys that perform Windows-specific functions.

					Key	Description
					Windows key	Pressed alone, this key has the same effect as clicking on the Windows Start button;
						it launches the Start menu. It can also be used with other keys to provide a variety of
						functions:
						< >: Open or close the Start menu
						< > + <D>: Display the desktop
						< > + <E>: Open Windows Explore
						< > + <F>: Search for a file or folder
						< > + <L>: Lock your computer (if you are connected to a network domain), or
						switch users (if you're not connected to a network domain)
						< > + <M>: Minimizes all windows
						< > + <R>: Open the Run dialog box
						< > + <U>: Open Ease of Access Center
						< > + <BREAK>: Display the System Properties dialog box
						< > + <SHIFT+M>: Restore minimized windows to the desktop
						< > + <TAB>: Cycle through programs on the taskbar by using Windows Flip 3-D
						< > + <SPACEBAR>: Bring all gadgets to the front and select Windows Sidebar
						<CTRL> + < > + <F>: Search for computers (if you are on a network)
						<CTRL> + < > + <TAB>: Use the arrow keys to cycle through programs on the
						taskbar by using Windows Flip 3-D
						Note: Depending on your edition of Windows Vista, some shortcuts may not function
						as described.
					Application	This key has the same effect as clicking the right mouse button; it opens the
					key	application's context menu.

10

Chapter 1

Hot Keys

The computer employs hotkeys or key combinations to access most of the computer's controls like screen brightness and volume output.

To activate hotkeys, press and hold the <Fn> key before pressing the other key in the hotkey combination.

Hotkey		Icon	Function	Description
<Fn> + <F1>			Hotkey help	Displays help on hotkeys.
<Fn> + <F2>			Acer eSettings	Launches Acer eSettings Management in Acer
			Management	Empowering Technology.
<Fn> + <F3>			Acer ePower	Launches Acer ePower Management in Acer
			Management	Empowering Technology.
<Fn> + <F4>			Sleep	Puts the computer in Sleep mode.
<Fn> + <F5>			Display toggle	Switches display output between the display
				screen, external monitor (if connected) and
				both.
<Fn> + <F6>			Screen blank	Turns the display screen backlight off to save
				power. Press any key to return.
<Fn> + <F7>			TouchPad toggle	Turns the internal TouchPad on and off.
<Fn> + <F8>			Speaker toggle	Turns the speakers on and off.
<Fn> + <	>		Brightness up	Increases the screen brightness.
<Fn> + <	>		Brightness down	Decreases the screen brightness.
<Fn> + <	>		Volume up	Increases the sound volume.
<Fn> + <	>		Volume down	Decreases the sound volume.

Chapter 1

11

Special Keys

You can locate the Euro symbol and the US dollar sign at the upper-center and/or bottom-right of your keyboard.

The Euro symbol

1.Open a text editor or word processor.

2.Hold <Alt Gr> and then press the <5> key at the upper-center of the keyboard.

NOTE: Some fonts and software do not support the Euro symbol. See www.microsoft.com/typography/faq/ faq12.htm for more information.

The US dollar sign

1.Open a text editor or word processor.

2.Hold <Shift> and then press the <4> key at the upper-center of the keyboard. NOTE: This function varies according to the language settings.

12

Chapter 1

Hardware Specifications and Configurations

Processor

Item

Specification

CPU type

Intel Atom N270/N280, 1.6GHz, 512K, 533/667MHz, 2.5W

CPU package

Micro-FCBGA8 packaging, 437-pin

Core Logic

•

Intel 945GSE Express chipset

•

ICH7M Intel 82801GBM

Chipset

•

ENE KB926 for Keyboard Controller, Battery management

Unit, and RTC.

• Integrated VGA solution for Intel 945GSE.

• Realtek ALC272X-GR for High Definition Audio Codec.

• Atheros AR8114A/AR8132 for 10/100 LAN

Features

•

On-die, primary 32-kB instructions cache and 24-kB write-back

data cache

• 533-MHz source-synchronous front side bus (FSB)

•

2-Threads support

• On-die 512-kB, 8-way L2 cache

• Support for IA 32-bit architecture

• Intel® Streaming SIMD Extensions-2 and -3 (Intel® SSE2 and

Intel® SSE3) support and Supplemental Streaming SIMD

Extension 3 (SSSE3) support

• Micro-FCBGA8 packaging technologies

• Thermal management support via Intel® Thermal Monitor 1

and Intel Thermal Monitor 2

• FSB Lane Reversal for flexible routing

•

Supports C0/C1(e)/C2(e)/C4(e)

• L2 Dynamic Cache Sizing

• Advanced power management features including Enhanced

Intel SpeedStep® Technology

• Execute Disable Bit support for enhanced security

Processor Specifications

Item

CPU

Cores

Bus

Mfg

Cache

Package

Core

Acer P/N

Speed

Speed

Tech

Size

Voltage

N270

1.6 GHz

1

533 MHz

45 nm

512

Micro-

0.9V-

KC.ANB01.270

KB

FCBGA8

1.100V

N280

1.66 GHz

1

667 MHz

45 nm

512

Micro-

0.9V-

KC.ANB01.280

KB

FCBGA8

1.1625V

CPU Fan True Value Table

CPU Temperature of Diode

Fan Speed (RPM)

SPL Spec (dBA)

40

5200

26

50

5900

29

60

6300

31

•Throttling 50%: On= 85°C; OFF=75°C

•EC shut down at 90°C; H/W shut down(PH1) at 92°C

Chapter 1

13

System Memory

		Item						Specification
	Memory controller				Built in
	Memory size				512MB or 1GB DDR2 RAM (if 2Gb die support is available)
	DIMM socket number				1
	Supports memory size per socket				2 GB
	Supports maximum memory size				2 GB
	Supports DIMM type				DDR II 533Mhz SDRAM memory interface design
	Supports DIMM Speed				533Mhz SDRAM
	System Storage
		Item						Specification
	HDD				• 9.5mm height, 2.5" HDD
					• Easily removable no more than two screws
					•	SATA bus
					•	160/250GB and above
					•	5400 rpm
					•	SATA connector BTO
	Hard Disk Drive Interface
	Item							Specification
	Vendor &		Seagate	Seagate				Seagate	HGST L9A300	WD
	Model Name		ST9160310AS	ST9250827AS				ST9250315AS	HTS543225	WD2500BEVT
									HTS543216	WD1600BEVT
	Capacity		160	250				250	250, 160	250, 160
	(GB)
	Bytes per		512	512				512	512	512
	sector
	Data heads		2	4				2	3, 2	3, 2
	Drive Format
	Disks		1	2				1	2, 1	2, 1
	Spindle		5400	5400				5400	5400	5400
	speed (RPM)
	Performance Specifications
	Buffer size		8 MB	8 MB				TBD	8 MB	8 MB
	Interface		SATA	SATA				SATA	SATA	SATA
	Fast data		352	778				TBD	3000	3000
	transfer rate
	(Mbits/sec,
	max)
	Media data		150	300				TBD	775	850
	transfer rate
	(Mbytes/sec
	max)
	DC Power Requirements
	Voltage		5V ±5%	5V ±5%				TBD	5V ±5%	5V ±5%
	tolerance

14

Chapter 1

Hard Disk Drive Interface (cont.)

Item				Specification
Vendor & Model Name	Toshiba MK1652GSX				Toshiba MK1655GSX
Capacity (GB)	160				160
Bytes per sector				512
Data heads	2				2
Drive Format
Disks	1				1
Spindle speed (RPM)	5400				5400
Performance Specifications
Buffer size (MB)	8				8
Interface	SATA				SATA
Fast data transfer rate (Mbits/	400 - 794 typical				395 - 952 typical
sec, max)
Media data transfer rate	3				3
(Gbytes/sec max)
DC Power Requirements
Voltage tolerance	5V ±5%				5V ±5%
BIOS
Item				Specification
BIOS vendor		InSyde
BIOS Version		v0.10
BIOS ROM type		Flash
BIOS ROM size		1 MB
Features		•	Support ISIPP
		•	Support Acer UI
		• Support multi-boot
		• Suspend to RAM (S3)/Disk (S4)
		• Various hot-keys for system control
		• Support SMBUS 2.0, PCI2.3
		• ACPI 2.0 compliance with Intel Speed Step Support C1, C2,
			C3, C4 and S3, S4 for mobile CPU
		• DMI utility for BIOS serial number configurable/asset tag
		•	Support PXE
		•	Support Y2K solution
		• Support Win Flash Wake on LAN from S3
		• Wake on LAN from S4 in AC mode
		•	System information
LED 10.1”
Item				Specification
Vendor/model name		Chimei N101L6-L02, AUO B101AW03 V0, Samsung
		LTN101NT02-A01, LPL LP101WSA-TLA1
Screen Diagonal (mm)		257 (10.1”)
Active Area (mm)		222.72x125.28
Display resolution (pixels)		1024x576

Chapter 1

15

Item	Specification
Pixel Pitch (mm)	0.2175
Typical White Luminance (cd/m2)	200
also called Brightness
Contrast Ratio	500:1
Response Time (Optical Rise	10
Time/Fall Time) msec
Typical Power Consumption	2.5
(watt)
Weight (without inverter)	180
Physical Size (mm)	235.5 x 143.5 x 5.2
Electrical Interface	LVDS
Viewing Angle (degree)
Horizontal (Right) CR = 10 (Left)	45/45
Vertical (Upper) CR = 10 (Lower)	20/45

Audio Codec and Amplifier

Item		Specification
Audio	REALTEK ALC272X-GR
Controller
Features	• Two stereo DAC support 16/20/24-bit PCM for two independent playback (multiple
	streaming)
	• Two stereo ADC supports 16/20/24-bit PCM format for two independent recording
	• All DACs support independent 44.1k/48k/96k/192kHz sample rate
	• All ADCs support independent 44.1k/48k/96k/192kHz sample rate
	• Two independent SPDIF outputs support 16/20/24-bit format and 44.1k/48k/88.2k/
	96k/192kHz rate
	• Supports line level mono output
	• Supports analog PCBEEP input, and features an integrated digital BEEP
	generator
	• Support two stereo digital microphone input for microphone array AEC/BF
	application
	• Supports legacy analog mixer architecture
	• Supports two GPIO (General Purpose Input/Output) pins (pin sharing with digital
	microphone interface)
	• Supports EAPD (External Amplifier Power Down) control for external amplifier
	• Supports anti-pop mode when analog power AVDD is on and digital power is off
	• Supports 1.5V~3.3V scalable I/O for HD Audio link
	• 48-pin LQFP ‘Green’ package
LAN Interface
	Item	Specification
LAN Chipset		Atheros AR8114/AR8132
Features		• Supports 10/100
Keyboard
	Item	Specification
Type		New Acer flat keyboard
Total number of keypads		84/88 with 101/102 key emulation
Windows logo key		Yes

16

Chapter 1

Item				Specification
Internal & external keyboard work		Plug USB keyboard to the USB port directly: Yes
simultaneously
Features		• 2.0+/- 3mm full stroke keys
		• Phantom key auto detect
		•	Overlay numeric keypad
		• Support independent pgdn/pgup/pgup/home/end keys
		• Support reverse T cursor keys
		• Factory configurable different languages by OEM
			customer
Mini Card
Item				Specification
Number Supported		2
Features		• 2 mini card slot (1 for 3G and 1 for WLAN or WLAN/
			WiMax)
		• Embedded 3G module and built-in 1 antenna (combo
			wireless + 3G) on top/side of LCD
Camera
Item				Specification
Vendor and model		Suyin Camera Rosa
		Liteon Camera Lily
Type		0.3M LDV
3G Card
Item				Specification
Features		• 3G card in mini-PCI card size
		• Control by USB interface
		• User accessible SIM card by battery remove
		• Antenna: Has to be placed on the sides of LCD in A/B
			cover
Wireless LAN
Item				Specification
Type		WiMax Intel Echo Peak 5150
Features		•	802.16e+802.11a/g/h
		•	1×2 MIMO
		• Mini card/Half Mini card
Battery
Item			Specification
Vendor & model name	SANYO UM-2008A,			SANYO UM-2008BW,
	PANASONIC UM-2008AW,			PANASONIC UM-2008B,
	SIMPLO UM-2008A			SIMPLO UM-2008A
Battery Type	Li-ion			Li-ion
Pack capacity	2200/2900 mAh			4400/5800 mAh
Number of battery cell	3			6
Package configuration	3S1P			3S2P

Chapter 1

17

18

Chapter 1

Chapter 2

System Utilities

BIOS Setup Utility

The BIOS Setup Utility is a hardware configuration program built into your computer’s BIOS (Basic Input/ Output System).

Your computer is already properly configured and optimized, and you do not need to run this utility. However, if you encounter configuration problems, you may need to run Setup. Please also refer to Chapter 4 Troubleshooting when problem arises.

To activate the BIOS Utility, press F2 during POST (when Press <F2> to enter Setup message is prompted on the bottom of screen).

Press F2 to enter setup. The default parameter of F12 Boot Menu is set to “disabled”. If you want to change boot device without entering BIOS Setup Utility, please set the parameter to “enabled”.

Press <F12> during POST to enter multi-boot menu. In this menu, user can change boot device without entering BIOS SETUP Utility.

Navigating the BIOS Utility

There are six menu options: Information, Main, Advanced, Security, Power, Boot, and Exit. Follow these instructions:

•To choose a menu, use the left and right arrow keys.

•To choose an item, use the up and down arrow keys.

•To change the value of a parameter, press F5 or F6.

•A plus sign (+) indicates the item has sub-items. Press Enter to expand this item.

•Press Esc while you are in any of the menu options to go to the Exit menu.

•In any menu, you can load default settings by pressing F9. You can also press F10 to save any changes made and exit the BIOS Setup Utility.

NOTE: You can change the value of a parameter if it is enclosed in square brackets. Navigation keys for a particular menu are shown on the bottom of the screen. Help for parameters are found in the Item Specific Help part of the screen. Read this carefully when making changes to parameter values. Please note that system information is subject to different models.

Chapter 2

19

Information

The Information screen displays a summary of your computer hardware information.

InsydeH20 Setup Utility

Rev. 3.5

Information

Main

Security

Boot

Exit

CPU Type

Intel(R) Atom(TM)

CPU

N270

@ 1.60GHz

CPU Speed

1.60GHz

HDD Model Name:

Hitachi HTS543225L9A300

HDD Serial Number:

081107FB2E00LKCSHX9A

System BIOS Version:

V0.05T1

VGA BIOS Version:

Intel V1585

Serial Number:

Asset Tag Number:

Aspire one

Product Name:

Manufacturer Name:

Acer

UUID:

63623032-6261-3964-6338-00235A495964

F1 Help

Select

Item

F5/F6

Change

Values

F9

Setup

Default

ESC Exit

Select

Menu

Enter

Select

SubMenu

F10

Save

and Exit

NOTE: The system information is subject to different models.

Parameter	Description
CPU Type	This field shows the CPU type and speed of the system.
CPU Speed	This field shows the speed of the CPU.
HDD Model Name	This field shows the model name of HDD installed on primary IDE master.
HDD Serial Number	This field displays the serial number of HDD installed on primary IDE master.
System BIOS Version	Displays system BIOS version.
VGA BIOS Version	This field displays the VGA firmware version of the system.
Serial Number	This field displays the serial number of this unit.
Asset Tag Number	This field displays the asset tag number of the system.
Product Name	This field shows product name of the system.
Manufacturer Name	This field displays the manufacturer of this system.
UUID	Universally Unique Identifier (UUID) is an identifier standard used in software
	construction, standardized by the Open Software Foundation (OSF) as part of
	the Distributed Computing Environment (DCE).

20

Chapter 2