Lenovo B490 Notebook User Manual
Hardware maintenance manual
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Hardware Maintenance Manual
Lenovo B490, B4301, B4302, B4303, B4305, B4306, B4307, B4308,
B4309, B4310, B4311, B4312, B4315, B4316, B4317, B4318, B4319,
B4320, B4321, B4322, B4323, B4325, B4326, B4327, B4328, B4329,
B4330, B4331, B4332, B4333, B4335, B4336, B4337, B4338, B4339,
B4360, B4361, B4362, B4363, B4365, B4366, B4367, B4368, B4369,
B4370, B4371, B4372, B4375, B4376, B4377, and B4378
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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