Lenovo B490 Hmm En User Manual Hardware Maintenance Laptop (Lenovo) Type 20205

2013-06-03

• About this manual
• Chapter 1. Safety information
  • General safety
  • Electrical safety
  • Safety inspection guide
  • Handling devices that are sensitive to electrostatic discharge
  • Grounding requirements
  • Safety notices (multilingual translations)
  • Laser compliance statement (multilingual translations)
• Chapter 2. Important service information
  • Strategy for replacing FRUs
    • Strategy for replacing a hard disk drive
    • Important notice for replacing a system board
  • Important information about replacing RoHS compliant FRUs
• Chapter 3. General checkout
  • What to do first
  • Power system checkout
    • Checking the ac power adapter
    • Checking operational charging
    • Checking the battery pack
• Chapter 4. Related service information
  • Recovering the computer settings
  • Passwords
    • Power-on password
    • Supervisor password
  • Power management
    • Screen blank mode
    • Sleep mode
    • Hibernation mode
• Chapter 5. Lenovo product information
  • Specifications
  • Status indicators
  • Fn key combinations
• Chapter 6. FRU replacement notices
  • Screw notices
• Chapter 7. Removing and replacing a FRU
  • General guidelines
  • 1010 Battery pack
  • 1020 Bottom slot cover
  • 1030 Optical drive
  • 1040 Memory modules
  • 1050 Hard disk drive assembly
  • 1060 PCI Express Mini Card for wireless LAN
  • 1070 mSATA solid-state drive
  • 1080 Backup battery
  • 1090 Keyboard
  • 1100 Keyboard bezel
  • 1110 LED board
  • 1120 Power board
  • 1130 Microphone assembly
  • 1140 Media card reader slot board
  • 1150 System board assembly and USB board
  • 1160 Thermal module
  • 1170 Microprocessor
  • 1180 LCD unit
  • 1190 Speaker assembly
  • 1200 DC-in connector and base cover
  • 2010 LCD front bezel
  • 2020 Camera
  • 2030 LCD panel, LCD cable, and hinges
  • 2040 Antenna assembly and LCD rear cover
• Chapter 8. Locations
  • Front view
  • Right-side view
  • Bottom and left-side view
• Chapter 9. Parts list
  • Overall
  • LCD FRUs
  • Keyboard
  • Miscellaneous parts
  • ac power adapters
  • Power cords
• Appendix A. Notices
  • Electronic emissions notices
  • Trademarks