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Packard Bell
LJ77, LJ75
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LJ77
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Specification
System Block Diagram
Password
Status Indicators
Wireless Function Failure
Dimension
Savememoryconfig
Common Problems
Bios Setup Utility
Bios Flash Utilities
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Contents
Packard Bell EasyNote LJ75/LJ77 Service Guide
Revision History
Copyright
III
Conventions
Preface
Page
Table of Contents
Viii
Packard Bell EasyNote LJ75 Series
Packard Bell EasyNote LJ77 Series
Online Support Information 207 Index 209
Features
Chapter
Optical Drive
Dimensions and Weight
Storage subsystem
Audio
Special Keys and Controls
Power
Privacy control
Ports
Optional
Environment
System Block Diagram
Your Notebook tour
Front View
Component Icon Description
Left View
Hdmi
Right View
Rear View
Bottom View
Keyboard Area selected models
Component Description
LCD Panel
Battery
Status Indicators
Indicator Icon Description
TouchPad Basics
Function Left Button Right Button Main TouchPad
Using the Keyboard
Key Types
Icon Key Type Description
Windows Keys
Key Description
System Keys
Function Key Description
RPM
Hardware Specifications and Configurations
DIS
UMA
System Memory Specification
Northbridge Specifications
Bios
Ddriii
0MB
Graphics Controller Specification
Memory Combinations Slot Total Memory
GMA HD
Bluetooth Specification
LAN Interface Specification
Wireless Module 802.11b/g Specification
Hard Disk Drive Interface Specification
8MB
Internal transfer rate Mbits Sec, max Data transfer rate
Reading
Super-Multi Drive Module Specification
Writing
Write
Blue-Ray Combo Drive Module Specification
CD-ROM CD-RW
Audio Interface Specification
Power and Keyboard Controller Specification
Battery Specification Cell
LCD Specification
Lvds
Bios Setup Utility
Navigating the Bios Utility
Information
Parameter Description
Uuid
Main
Parameter Description Format/Option
Advanced
Parameter Description Submenu Items
Aspm L1
IGD-TV
Aspm
URR
Parameter Description Option
Disabled or
Security
Clear or Set
Setting a Password
Removing a Password
Changing a Password
Continue
Power
Acpi S3
Emitm
DTS
Acpi S3
Boot
USB Cdrom
Exit
Cmos
Bios Flash Utilities
DOS Flash Utility
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 Utility
Chapter
Machine Disassembly and Replacement
Disassembly Requirements
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 SD dummy card
Removing the Lower Covers
HDD2, Wlan
HDD1
Removing the Optical Drive Module
Step Size Quantity Screw Type ODD Module M2.5*5
Step Size Quantity Screw Type ODD Bracket M2*3
Removing the Dimm Modules
Removing the Wlan Module
Step Size Quantity Screw Type Wlan Module M2*3
Removing the Primary HDD Module
Step Size Quantity Screw Type HDD Carrier M3*3
Remove the HDD from the carrier Chapter
Removing the Secondary HDD Module
Step Size Quantity Screw Type HDD Carrier M3*3
Main Unit Disassembly Process
Main Unit Disassembly Flowchart
Removing the Switch Cover
Step Size Quantity Screw Type Switch Cover M2.5*5
Chapter
Page
Removing the Media Board
Removing the Keyboard
Chapter
Removing the LCD Module
Step Size Quantity Screw Type LCD Module M2.5*8
Chapter
Page
Step Size Quantity Screw Type
Carefully remove the LCD module from the chassis Chapter
Removing the Upper Cover
Step Size Quantity Screw Type
Page
Page
Removing the TouchPad Bracket
Step Size Quantity Screw Type TouchPad Bracket M2*3
Removing the Media Board FFC
Removing the LED Board
Removing the Speaker Module
Step Size Quantity Screw Type Speaker Module M2*3
Lift the entire Speaker assembly clear of the Upper Cover
Removing the RTC Battery
Removing the Modem Board
Step Size Quantity Screw Type Modem Board M2*3
Page
Removing the USB Board
Step Size Quantity Screw Type USB Board M2.5*5
Page
Removing the Mainboard
Step Size Quantity Screw Type Mainboard M2.5*5
Removing the RJ-11 Jack
Chapter
Removing the CPU Fan
Step Size Quantity Screw Type CPU Fan M2*3
Removing the Thermal Module
Step Size Quantity Screw Type Thermal Module M2.5*6.5
Removing the CPU
LCD Module Disassembly Process
LCD Module Disassembly Flowchart
Removing the LCD Bezel
Removing the Camera Module
Removing the LCD Panel
Step Size Quantity Screw Type LCD Panel M2.5*5
Removing the Power Board
Step Size Quantity Screw Type Power Board M2*3
Removing the LCD Brackets and FPC Cable
Step Size Quantity Screw Type LCD Brackets M2*3
Removing the Microphone Module
Removing the Antennas
Page
LCD Module Reassembly Procedure
Replacing the Antennas, Power Board, and MIC
Page
108 Chapter
Replacing the LCD Panel
110 Chapter
Replacing the Camera Module
Replacing the LCD Bezel
Page
Main Module Reassembly Procedure
Replacing the CPU
Replacing the Thermal Module
Replacing the CPU Fan
Replacing the RJ-11 Jack
Replacing the Mainboard
Replacing the USB Board
Replacing the Modem Board
Replacing the Speaker Module
Replacing the LED Board
Replacing the Media Board FFC
Replacing the TouchPad Bracket
Replacing the Upper Cover
Reconnect the following cables as shown Chapter 123
124 Chapter
Page
Replacing the LCD Module
Page
128 Chapter
Replacing the Keyboard
Replacing the Media Board
Replacing the Switch Cover
132 Chapter
Replacing the Hard Disk Drive Modules
Replacing the Wlan Module
Replacing the Dimm Modules
Replacing the ODD Module
Replacing the Lower Covers
136 Chapter
Replacing the Battery
Replacing the SD Dummy Card
138 Chapter
Common Problems
Symptoms Verified Go To
Power On Issue
Computer Shuts down Intermittently
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
146 Chapter
Microphone Problems
Select Set up microphone
Internal Microphone Failure
HDD Not Operating Correctly
Select Repair your computer
Select Startup Repair
ODD Failure
ODD Not Operating Correctly
Discs Do Not Play
Playback is Choppy
152 Chapter
USB Right Side Failure
USB/B
Wireless Function Failure
WiMax card
Bluetooth Function Test Failure
Re-assemble BT Cable
Easy Button Failure
Thermal Unit Failure
External Mouse Failure
Other Failures
Motherboard Cmos Discharge
Intermittent Problems
Undetermined Problems
Dimm
160 Chapter
Sec
Post Codes
Chipset Post Codes
Memory
BDS & Specific action
Code Description
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
168 Chapter
Top View
JODD1
PJP2
JMINI1
JHDD1
LS-5026P LED Board
LS-5022P USB Board
LS-5024P Cap Sensor Board
LED1
LED3
Power S/W
LS-5027P SW Board
SW1
Steps for Clearing Bios Password Check
Clearing Password Check and Bios Recovery
Clearing Password Check
Mark Description Location
174 Chapter
Bios Recovery Hotkey
Bios Recovery by Crisis Disk
Bios Recovery Boot Block
Steps for Bios Recovery by USB flash crisis disk
176 Chapter
FRU Field Replaceable Unit List
Packard Bell EasyNote LJ75/LJ77 Exploded Diagrams
Main Assembly
Description Acer P/N
Base Assembly
LCD Assembly
Category
Battery
Packard Bell EasyNote LJ75/LJ77 FRU List
Adapter
CASE/COVER/BRACKET Assembly
Cable
CPU/PROCESSOR
HDD/HARD Disk Driver
Memory
Keyboard
ODD BEZEL-SUPER Multi
DVD-RW Drive
ODD SUPER-MULTI Drive Module
ODD Bracket
BD Combo Module
LCD
Speaker
Mainboard
Heatsink
Miscellaneous
Screw List
Screw
Chapter 189
Appendix a
Packard Bell EasyNote LJ75 Series
Model Acer Part No Country Description
EASYNOTELJ75-JP-258FR
EASYNOTELJ75-JO-110IT
EASYNOTELJ75-JO-256FR
EASYNOTELJ75-JO-432SP
VGA Chip
Model Acer Part No
CPU LCD
Vram
NLED17.3W Parkxt
NLED17.3W UMA
SO2GBIII10
Model Acer Part No Memory
HDD 1GB
SO2GBIII10 SO4GBIII10
Reader
HDD 2GB ODD
Media Extra Card Processor
NSM8XS NIS
Finger
Model Acer Part No Wireless Bluetooth
Voip
LAN1
LX.BG902.014 3rd WiFi HM55 436G50Bn
S2.BH302.001 INT6200H HM55 544G32Mi
Packard Bell EasyNote LJ77 Series
2GB
Media Extra SW1 Card Reader Processor
Model Acer Part No Wireless LAN1 Bluetooth
Finger NB Chipset Phone Print
Test Compatible Components
Appendix B
Vendor Type Description 2nd HDD
Battery
Microsoft Windows 7 Environment Test
Adapter
CPU
Vendor Type Description
Camera
HDD
MEM
Modem
WiFi Antenna
Wireless LAN
Vendor Type Description VGA Chip
206
Online Support Information
Appendix C
208
Index
210
211
212
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