Lenovo B490 Notebook User Manual
Hardware maintenance manual
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Table of contents
Document Outline
- About this manual
- Chapter 1. Safety information
- Chapter 2. Important service information
- Chapter 3. General checkout
- Chapter 4. Related service information
- Chapter 5. Lenovo product information
- Chapter 6. FRU replacement 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
- Chapter 9. Parts list
- Appendix A. Notices