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EM250
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Lift the Thermal Module clear of the Mainboard
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EM250
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Troubleshooting
Specification
System Block Diagram
Bluetooth
Password
Euro symbol
Indicators
Wireless Function Test Failure
Savememoryconfig
Common Problems
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4.
Lift the Thermal Module clear of the Mainboard.
68
Chapter 3
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Contents
EMachines eM250 Series Service Guide
Revision History
Copyright
III
Conventions
Preface
Page
Table of Contents
Troubleshooting 119
Viii
Jumper and Connector Locations 143
Windows XP Environment Test
Table of Contents
Features
Chapter
Privacy control
Power
Communication
Special keys and controls
System Block Diagram
ICH7M
Your eMachines Notebook tour
Front View
Icon Description
Closed Front View
Left View
Right View
Rear and Base View
Indicators
Icon Function Description
HDD
TouchPad Basics
Function Left Button Right Button Main TouchPad
Using the Keyboard
Lock Keys and embedded numeric keypad
Windows Keys
Key Description
Hot Keys
Hotkey Icon Function Description
Euro symbol
Special Keys
US dollar sign
Hardware Specifications and Configurations
Processor Specification
Processor Specifications
System Memory Specification
System Storage Specification
Hard Disk Drive Interface Specification
LED Specification
LTN101NT02-A01, LPL LP101WSA-TLA1
Keyboard Specification
Audio Codec and Amplifier Specification
LAN Interface Specification
Lvds
3G Card Specification
Mini Card Specification
Camera Specification
Wireless LAN Specification
Chapter
Bios Setup Utility
Navigating the Bios Utility
Information
Parameter Description
Uuid
Main
Parameter Description Format/Option
Parameter Description Option
Enabled or
Security
Clear or Set
Setting a Password
Removing a Password
Changing a Password
Continue
Boot
USB Cdrom
Exit
Exit Exit Saving Changes
Bios Flash Utility
DOS Flash Utility
USB HDD
Page
WinFlash Utility
Password
Remove HDD/BIOS Password Utilities
Removing HDD Password
UnlockHD
Removing Bios Passwords
Cleaning Bios Passwords
Using Boot Sequence Selector
Using DMITools
Miscellaneous Utilities
Using the LAN MAC Utility
Example 1 Read DMI Information from Memory
Execute MAC.BAT to write MAC information to eeprom Chapter
Chapter
Disassembly Requirements
Related Information
General Information
Pre-disassembly Instructions
Disassembly Process
Main Screw List Quantity Part Number
External Module Disassembly Process
External Modules Disassembly Flowchart
Screw List Step Quantity
Removing the Battery Pack
Removing the Lower Covers
Step Size Quantity Screw Type Lower Covers M2*4
Chapter
Removing the Hard Disk Drive Module
Step Size Quantity Screw Type HDD Module M2*4
Step Size Quantity Screw Type HDD Carrier M3*3
Removing the Dimm Module
Removing the 3G Module
Step Size Quantity Screw Type 3G Module M2*3
Detach the 3G Module from the socket Chapter
Main Unit Disassembly Process
Main Unit Disassembly Flowchart
Removing the Keyboard
Disconnect the FFC and remove the Keyboard
Removing the Upper Cover
Step Size Quantity Screw Type
Chapter
Step Size Quantity Screw Type Upper Cover M2*4
Chapter
Removing the Power Board
Step Size Quantity Screw Type Power Board M2*3
Chapter
Removing the Bluetooth Module
Removing the TouchPad FFC
Removing the Wlan Board
Step Size Quantity Screw Type Wlan Board M2*3
Remove the Wlan Board from the Mainboard
Removing the USB Board
Step Size Quantity Screw Type USB Board M2*4
Chapter
Removing the Mainboard
Step Size Quantity Screw Type Mainboard M2*4
Page
Removing the RTC Battery
Removing the Thermal Module
Step Size Quantity Screw Type Thermal Module M2*4
Lift the Thermal Module clear of the Mainboard
Removing the Speaker Module
Step Size Quantity Screw Type Speaker Module M2*4
Chapter
Removing the LCD Module
Chapter
Step Size Quantity Screw Type LCD Module M2*4
Removing the AC Power Jack
LCD Module Disassembly Process
LCD Module Disassembly Flowchart
Removing the LCD Bezel
Step Size Quantity Screw Type LCD Bezel M2*4
Page
Removing the Camera Board
Removing the LCD Panel
Step Size Quantity Screw Type LCD Panel M2*4
Chapter
Removing the LCD Brackets and FPC Cable
Step Size Quantity Screw Type LCD Brackets M2*3
Left Right Bracket
Step Size Quantity Screw Type Hinge Covers M2*3
Removing the Antennas
Chapter
Page
LCD Module Reassembly Procedure
Replacing the Antennas
Page
3G and Wlan Models Wlan Only Models
Replacing the LCD Cable and Brackets
Left Right Bracket
Page
Replacing the LCD Panel
Replacing the Camera Board
Connect the Camera cable as shown
Replacing the LCD Bezel
Main Module Reassembly Procedure
Replacing the AC Power Jack
Replacing the LCD Module
Chapter
Page
Replacing the Speaker Module
Replacing the Thermal Module
Replacing the Mainboard
Page
Replacing the USB Board
Replacing the Wlan Board
Replacing the Bluetooth Module
Replacing the TouchPad FFC
Page
Replacing the Power Board
Page
Replacing the Upper Cover
Page
Connect B to the Mainboard
Replacing the Keyboard
Replacing the 3G Module
114 Chapter
Replacing the Dimm Module
Replacing the Hard Disk Drive Module
Replace the single screw to secure the HDD in place
Replacing the Lower Covers
Replacing the Battery Pack
Common Problems
Symptoms Verified Go To
Power On Issue
Computer Shuts down Intermittently
SW/B
No Display Issue
No Post or Video
Random Loss of Bios Settings
Abnormal Video Display
LCD Failure
Built-In Keyboard Failure
TouchPad Failure
FFC
Sound Problems
Internal Speaker Failure
126 Chapter
Microphone Problems
Select Set up microphone
Internal Microphone Failure
HDD Not Operating Correctly
Select Repair your computer
Select Startup Repair
USB Failure Rightside
Wireless Function Test Failure
3G Function Test Failure
Switch Failure
Power Button Failure
Thermal Units Failure
External Mouse Failure
Other Failures
Intermittent Problems
Undetermined Problems
Dimm
Motherboard Cmos Discharge
Memory
Post Code Reference Tables
Sec
Code Description
BDS & Specific action
Each Peim entry point used in 80PORT
Each Driver entry point used in 80PORT
Fvbservice
CF9RESET
Bootpriority
Smbios
Setuputility
Legacybios
Legacybiosplatform
Fwblockservice
Each SmmDriver entry point used in 80PORT
Top View
Bottom View
Power board
SW1
LED1
JREAD1
Card reader board
JUSB2
LED2 3GWWAN LED JSATA1
Steps for Clearing Bios Password Check
Clearing Password Check and Bios Recovery
Clearing Password Check
Hardware Open Gap Description
Bios Recovery Hotkey
Bios Recovery by Crisis Disk
Bios Recovery Boot Block
Steps for Bios Recovery by USB Flash Crisis Disk
FRU Field Replaceable Unit List
EMachines eM250 Exploded Diagrams
Main Assembly
Description Part Number
Rear Assembly
Upper Cover Assembly
Lower Cover Assembly
LCD Assembly
AcerPN Acer Description
Power Board
EMachines eM250 FRU List
04AC LF
DC-IN CABLE-30W
IO Board
Blue Tooth Cable
IO Board Cable
AcerPN Acer Description 42.S6802.004 HDD DOOR-BLACK
158
Chapter 159
LCD Hinge Cover R-BLACK
LCD
ANTENNA, CCD, Black
LCD Hinge Cover L-BLACK
Screw List
Acer Description Acer PN
Model Definition and Configuration
Appendix a
EMachines eM250 Series
Model eM250-01G16
Appendix a 166
Switzerl LX.N970 EM250-01G16i AOXPHeTCH1 UMACks 1*1G/160
Appendix a 168
Gctwn
Model eM250-01G25i
Model eM250-02G16i
Appendix a 172
Test Compatible Components
Appendix B
Windows 7 Environment Test
Vendor Type Description Item No
Vendor Type Description Item No
HDD Seagate
CPU Intel ATMN270B
Intel ATMN280B
Toshiba
Samsung SO512MBII
Hynix SO512MBII
Nanya SO1GBII6
178
ICH7M
UMA
180
Online Support Information
Appendix C
182
Index
184
ODD 129
186
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