Lenovo ThinkPad Edge L330 Hardware Maintenance Manual - ThinkPad Edge L330 - Page 3
Contents, General checkout
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Contents About this manual iii Chapter 1. Safety information . . . . . 1 General safety 1 Electrical safety 1 Safety inspection guide 3 Handling devices that are sensitive to electrostatic discharge 3 Grounding requirements 4 Safety notices (multilingual translations) . . . . . 4 Chapter 2. Important service information 19 Strategy for replacing FRUs 19 Strategy for replacing a hard disk drive . . . 20 Important notice for replacing a system board 20 How to use error codes 20 Strategy for replacing FRUs for CTO, CMV, and GAV products 20 Product definition 20 FRU identification for CTO, CMV, and GAV products 21 Chapter 3. General checkout . . . . . 23 What to do first 23 Checkout guide 24 Lenovo Solution Center 24 Quick test programs 24 UEFI diagnostic program 25 Bootable diagnostic programs 25 Power system checkout 26 Checking the ac power adapter 26 Checking operational charging 27 Checking the battery pack 27 Checking the backup battery 27 Chapter 4. Related service information 29 Restoring the factory contents by using Product Recovery discs 29 Restoring the factory contents using the recovery disc set 29 Passwords 31 Power-on password 31 Hard disk password 31 Supervisor password 31 How to remove the power-on password . . . 31 © Copyright Lenovo 2012 How to remove the hard disk password . . . 32 Power management 32 Screen blank mode 32 Sleep mode 33 Hibernation mode 33 Symptom-to-FRU index 34 Numeric error codes 34 Error messages 35 No-beep symptoms 35 LCD-related symptoms 35 Intermittent problems 36 Undetermined problems 36 Chapter 5. Status indicators . . . . . 39 Chapter 6. Fn key combination . . . . 41 Chapter 7. Locations 43 Locating computer controls, connectors, and indicators 43 Front view 43 Rear view 44 Bottom view 44 Locating FRUs and CRUs 44 Major FRUs and CRUs 46 LCD FRUs and CRUs 48 Looking up FRU information 49 Chapter 8. FRU replacement notices 51 Screw notices 51 Retaining serial numbers 52 Restoring the serial number of the system unit 52 Retaining the UUID 53 Reading or writing the ECA information . . . 53 Chapter 9. Removing or replacing a FRU 55 General guidelines 55 Before servicing your computer 56 1010 Battery pack 56 1020 Bottom cover 57 1030 Memory modules 58 1040 Hard disk drive or solid-state drive . . . . 59 1050 PCI Express Mini Card for wireless LAN . . 61 1060 PCI Express Half Mini Card for wireless WAN or mSATA solid-state drive 63 i