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5251, 5551G
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5551G
5551
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Troubleshooting
Specification
Install
System Block Diagram
Bluetooth
Password
Indicators
Wireless Function Failure
Dimension
Common Problems
Page 6
Image 6
VI
Page 5
Page 7
Page 6
Image 6
Page 5
Page 7
Contents
Aspire 5251/5551G/5551 Series Service Guide
Revision History
Copyright
III
Conventions
Preface
Page
Table of Contents
Troubleshooting 137
Viii
Aspire
Aspire 5551G
Microsoft Windows 7 Environment Test
Table of Contents
Features
Chapter
Storage
Storage Subsystem
Audio
Optical Media Drive
Communication
Dimensions and weight
Power subsystem
Privacy control
Optional Items
Environment
System Block Diagram
ATI SB820M
Icon Description
Your Acer Notebook tour
Front View
HDD
Closed Front View
Left View
Hdmi
Right View
Indicators
Bottom View
Icon Function Description
TouchPad Basics
Function Left Button Right Button Main TouchPad
Using the Keyboard
Lock Keys and embedded numeric keypad
Lock key Description
Windows Keys
Key Description
Hot Keys
Hotkey Icon Function Description
Processor Specifications
Hardware Specifications and Configurations
Platform Specification
CPU
Fan Acoustic Specifications Operation Application
Loudness Sone Tone Mode DBA
ODD
Memory Combinations Slot Total Memory
System Memory Specification
4GB
0MB
Battery Specification Cell
Onboard LAN Specification
Wireless LAN Specification
SANYO/SONY/PANASONIC/SAMSUNG/SIMPLO AS2009A
System Power Management Acpi mode Specification
Power and Keyboard Controller Specification
Hard Disk Drive Interface Specification
Super-Multi Drive Module
VGA Chip Specification
LCD Display Resolutions Aspire Aspire 5551G
VGA
LCD Specification
Lvds
Ohci
Card Reader Specification
Audio Interface Specification
Chapter
Bios Setup Utility
Navigating the Bios Utility
Parameter Description
Aspire 5251/5551G/5551 Bios
Information
Uuid
Disabled
Main
Parameter Description Format/Option
Parameter Description Option
Disabled or
Security
Clear
Setting a Password
Removing a Password
Changing a Password
Continue
Boot
USB CD/DVD ROM
Exit
Exit Exit Saving Changes
Bios Flash Utilities
DOS Flash Utility
USB CD/DVD
Page
WinFlash Utility
Password
Remove HDD/BIOS Password Utilities
Remove HDD Password
UnlockHD
Removing Bios Passwords
Cleaning Bios Passwords
Using Boot Sequence Selector
Using DMITools
Input
Output
Using the LAN MAC Eeprom Utility
Chapter
Machine Disassembly and Replacement
Disassembly Requirements
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 SD Dummy Card
Removing the Optical Drive Module
Step Size Quantity Screw Type ODD Module M2.5*8
Step Size Quantity Screw Type ODD Bracket M2*3
Removing the Logic Lower Door
Step Size Quantity Screw Type Logic lower door M2.5*8
Removing the 3G Cover
Step Size Quantity Screw Type 3G Cover M2*3
Removing the Dimm Module
Removing the Wlan Module
Step Size Quantity Screw Type Wlan Module M2*3
Detach the Wlan Board from the Wlan socket Chapter
Removing the Hard Disk Drive Module
Step Size Quantity Screw Type HDD Carrier M3*3
Main Unit Disassembly Process
Main Unit Disassembly Flowchart
Removing the Keyboard
Chapter
Removing the Upper Cover
Step Size Quantity Screw Type
Chapter
Release the locking latch on a Disconnect a as shown
Step Size Quantity Screw Type Upper Cover M2.5*5
Removing the Left Speaker Module
Lift the Speaker clear of the Upper Cover
Removing the Right Speaker Module
Lift the Right Speaker Module clear of the device
Removing the Power Board
Step Size Quantity Screw Type Power board M2*3
Removing the TouchPad Bracket
Step Size Quantity Screw Type TouchPad Bracket M2*3
Removing the Card Reader Board
Step Size Quantity Screw Type Card Reader M2*3
Removing the USB Board
Lift the USB board clear of the device
Removing the Bluetooth Board
Removing the Mainboard
Step Size Quantity Screw Type Mainboard M2.5*5
Chapter
Page
Disconnect the Bluetooth to mainboard cable
Removing the Thermal Module
Step Size Quantity Screw Type Thermal Module M2.5*3.2
GPU
Carefully lift the Thermal Module clear of the Mainboard
Removing the CPU
LCD Module Disassembly Process
LCD Module Disassembly Flowchart
Removing the LCD Assembly
Chapter
Step Size Quantity Screw Type LCD assembly M2.5*5
Removing the LCD Bezel
Step Size Quantity Screw Type LCD Bezel M2.5*6
Removing the Camera Module
Removing the LCD Panel
Step Size Quantity Screw Type LCD Panel M2.5*5
Removing the LCD Brackets and Lvds Cable
Step Size Quantity Screw Type LCD Brackets M2*3
Chapter
Disconnect the Lvds cable from the panel Chapter
Removing the Microphone Cable
Page
Removing the Antennas
Page
LCD Module Reassembly Procedure
Replacing the Antennas
Page
Replacing the Microphone Cable
Replacing the LCD Brackets and Lvds Cable
102 Chapter
Replacing the LCD Panel
Replacing the Camera Module
Place the Camera in the module Connect the camera cable
Replacing the LCD Bezel
Replacing the LCD Assembly
Page
108 Chapter
Main Module Reassembly Procedure
Replacing the CPU
Replacing the Thermal Module
Connect the fan cable Chapter 111
Replacing the Mainboard
Page
114 Chapter
Replacing the Bluetooth Board
Replacing the USB Board
Page
Replacing the Card Reader Board
Replacing the TouchPad Bracket
120 Chapter
Replacing the Power Board
Replacing the Right Speaker Module
Replacing the Left Speaker Module
Replacing the Upper Cover
Page
126 Chapter
Replacing the Keyboard
Replacing the Hard Disk Drive Module
Replacing the Wlan Module
Replacing the Dimm Modules
Replacing the 3G Cover
Replacing the Logic Lower Door
Replacing the ODD Module
Replacing the SD Dummy Card
Replacing the Battery
136 Chapter
Common Problems
Symptoms Verified Go To
Power On Issue
Computer Shutsdown Intermittently
No Display Issue
No Post or Video
Random Loss of Bios Settings
Abnormal Video Display
LCD Failure
Built-In Keyboard Failure
TouchPad Failure
Internal Speaker Failure
Sound Problems
Microphone Problems
Select Set up microphone
HDD Not Operating Correctly
Select Repair your computer
Select Startup Repair
ODD Failure
ODD Not Operating Correctly
Discs Do Not Play
Drive Not Detected
Wireless Function Failure
Thermal Unit Failure
External Mouse Failure
Other Failures
Intermittent Problems
Undetermined Problems
Dimm
Post Code Range Phase
Post Codes
Peirecoverymedianotfound PEI
Peienterrecoverymode PEI
Peirecoverymediafound PEI
Peirecoveryloadfiledone PEI
Bdsentersetup BDS
Bdsenumerateallbootoption BDS
Bdsendofbootselection BDS
Bdsenterbootmanager BDS
Smmacpidisablestart SMM
Smmacpienablestart SMM
Smmacpienableend SMM
Smmacpidisableend SMM
Top View
PJP1
PJP2
JHDD1
JODD1
Power Board
USB/B Board
CR/B Board
For NEW85 Wlan LED
Steps for Clearing Bios Password Check
Clearing Password Check and Bios Recovery
Clearing Password Check
Clear Cmos Jumper
Bios Recovery Hotkey
Bios Recovery by Crisis Disk
Bios Recovery Boot Block
Steps for Bios Recovery from USB Storage
FRU Field Replaceable Unit List
Aspire 5251/5551G/5551 Exploded Diagrams
Main Assembly
Description Acer P/N
Base Assembly
LED Assembly
Antenna Wlan Main
Antenna Wlan AUX
Aspire 5251/5551G/5551 FRU List
Screw List
Chapter 167
Appendix a
Aspire
Media Extra SW1 Card Reader Wireless Processor
Memory Chip
Model Acer Part No Memory
China
Aspire 5551G
Emea
AAP
TWN Gctwn
VGA Chip
Madisonpr 1G-DDR3 SO2GBIII10
Wxgag
Parkxt
Wxgag DDR3
HDD 1GB
2GB
AS5551G LX.PUU01.003 N320GB5.4 N832G32Mn LX.PUU01.001
AS5551G LX.PUS01.003
NBDCB4
AS5551G LX.PUS02.014
Acla
EME
AS5551 LX.PTQ02.021
UMA SO2GBIII10
UMA SO2GBIII13B
UMA SO1GBIII10
SO1GBIII13
Ksbr
AS5551 LX.PTQ02.016
AS5551 LX.PWK02.002
McAfee 1-Build 3rd WiFi N332G32Mn 2x2 BGN Appendix a 186
Test Compatible Components
Appendix B
Battery
Microsoft Windows 7 Environment Test
Vendor Type Description Adapter
Vendor Type Description
Toshiba Digi MK3265GSX Sata 8MB LF F/WGJ002J
N15.6WXGAG
NLED15.6WXGAG
Kingston
Innolux
NLED15.6WXGAGB
SO1GBIII13BR
NB Chipset
Wireless LAN
Vendor Type Description WiFi Antenna
Bluetooth
Audio Codec
23707801 3rd WiFi BG Foxconn Wirelss LAN Atheros HB95BG HM
Online Support Information
Appendix C
196
Index
Removing 72, 73, 75
199
200
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