Document Outline

• System Specifications
  • Features
  • System Block Diagram
    • DDR2
    • DDR3
  • Your Notebook Tour
    • Top View
    • Closed Front View
    • Rear View
    • Left View
    • Right View
    • Bottom View
    • Touchpad Basics
  • Using the Keyboard
    • Lock Keys and Embedded Numeric Keypad
    • Windows Keys
    • Hot Keys
    • Using the communication key
    • Special Key
  • Hardware Specifications and Configurations
• System Utilities
  • BIOS Setup Utility
    • Navigating the BIOS Utility
    • Information
    • Main
    • Security
    • Boot
    • Exit
  • BIOS Flash Utility
    • DOS Flash Utility
    • WinFlash Utility
  • Remove HDD/BIOS Password Utilities
    • Miscellaneous Utilities
• Machine Disassembly and Replacement
  • Disassembly Requirements
  • General Information
    • Pre-disassembly Instructions
    • Disassembly Process
  • External Module Disassembly Process
    • External Modules Disassembly Flowchart
    • Removing the Battery Pack
    • Removing the SD Dummy Card
    • Removing the 3G Card
    • Removing the Keyboard
    • Removing the Lower Door
    • Removing the DIMM Module
    • Removing the HDD Module
    • Removing the 3G Module
    • Removing the WLAN Module
  • Main Unit Disassembly Process
    • Main Unit Disassembly Flowchart
    • Removing the Upper Cover
    • Removing the Button Board
    • Removing the LED Board
    • Removing the Bluetooth Module
    • Removing the RTC Battery
    • Removing the Speaker Module
    • Removing the Mainboard
    • Removing the Thermal Module
    • Removing the LCD Module
  • LCD Module Disassembly Process
    • LCD Module Disassembly Flowchart
    • Removing the LCD Bezel
    • Removing the Camera Module
    • Removing the LCD Panel
    • Removing the Microphone Module
    • Removing the LCD Brackets
    • Removing the 3G and WLAN Antennas
  • LCD Module Reassembly Procedure
    • Replacing the 3G and WLAN Antennas
    • Replacing the LCD Brackets
    • Replacing Microphone Module
    • Replacing the LVDS Cable
    • Replacing the CCD Module
    • Replacing the LCD Bezel
  • Main Module Reassembly Procedure
    • Replacing the LCD Module
    • Replacing the Thermal Module
    • Replacing the Mainboard
    • Replacing the Speakers
    • Replacing the RTC Battery
    • Replacing the Bluetooth Module
    • Replacing the LED Board
    • Replacing the Button Board
    • Replacing the Upper Cover
    • Replacing the WLAN Module
    • Replacing the 3G Module
    • Replacing the HDD Module
    • Replacing the DIMM Module
    • Replacing the Lower Cover
    • Replacing the Keyboard
    • Replacing the 3G Card
    • Replacing the SD Dummy Card
    • Replacing the Battery
• Troubleshooting
  • Common Problems
    • Power On Issue
    • No Display Issue
    • Random Loss of BIOS Settings
    • LCD Failure
    • Built-In Keyboard Failure
    • Touch Pad Failure
    • Internal Speaker Failure
    • Internal Microphone Failure
    • HDD Not Operating Correctly
    • USB Failure
    • Wireless Function Failure
    • 3G Function Failure
    • Cosmetic Failure
    • Thermal Unit Failure
    • External Mouse Failure
    • Other Failures
  • Intermittent Problems
  • Undetermined Problems
  • Post Codes
    • Sec:
    • Memory:
    • BDS & Specific action:
    • Each PEIM entry point used in 80_PORT
    • Each Driver entry point used in 80_PORT
    • Each SmmDriver entry point used in 80_PORT
• Jumper and Connector Locations
  • Mainboard Bottom View (DDR3 Model)
  • Clearing Password Check and BIOS Recovery
    • Clearing Password Check
    • BIOS Recovery by Crisis Disk
• FRU (Field Replaceable Unit) List
  • Exploded Diagrams
    • Main Assembly
    • Logic Lower Assembly
    • Logic Upper Assembly
    • LCD Assembly
    • Aspire D255 FRU List
    • Screw List
• Model Definition and Configuration
  • Aspire D255
• Test Compatible Components
• Online Support Information
• Index