Lenovo 0319A25 User Manual - Page 3
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Contents About this manual iii Chapter 1. Safety information 1 General safety 1 Electrical safety 2 Safety inspection guide 3 Handling devices that are sensitive to electrostatic discharge 3 Grounding requirements 4 Safety notices (multilingual translations 4 Laser compliance statement (multilingual translations 17 Chapter 2. Important service information 23 Strategy for replacing FRUs 23 Strategy for replacing a hard disk drive . . . 24 Important notice for replacing a system board 24 How to use error message 24 Strategy for replacing FRUs for CTO, CMV, and GAV 24 Product definition 24 FRU identification for CTO, CMV, and GAV products 25 Chapter 3. General checkout . . . . . 27 What to do first 27 Checkout guide 28 Diagnostics using PC-Doctor for DOS. . . . 28 Lenovo ThinkVantage Toolbox (Lenovo System Toolbox 31 PC-Doctor for Rescue and Recovery . . . . 31 FRU tests 31 Power system checkout 32 Checking the ac adapter 33 Checking operational charging 33 Checking the battery pack 33 Checking the backup battery 34 Chapter 4. Related service information 35 Restoring the factory contents by using Recovery Disc Set 35 Passwords 36 Power-on password 36 Hard-disk password 36 Supervisor password 37 How to remove the power-on password . . . 37 © Copyright Lenovo 2010, 2011 How to remove the hard-disk password . . . 37 Power management 38 Screen blank mode 38 Sleep mode 38 Hibernation mode 38 Symptom-to-FRU index 39 Numeric error codes 39 Error messages 41 No-beep symptoms 42 LCD-related symptoms 42 Intermittent problems 42 Undetermined problems 43 Chapter 5. Status indicators . . . . . 45 Chapter 6. Special keys and Fn key combination 47 Chapter 7. FRU replacement notices 49 Screw notices 49 Retaining serial numbers 50 Restoring the serial number of the system unit 50 Retaining the UUID 51 Reading or writing the ECA information . . . 51 Chapter 8. Removing and replacing a FRU 53 1010 Battery pack 54 1020 Optical drive or travel cover 54 1030 Thermal cover 55 1040 Hard disk drive (HDD) assembly . . . . . 56 1050 DIMM 57 1060 Fan assembly 58 1070 CPU 61 1080 Wireless WAN slot cover and PCI Express Mini Card for wireless WAN 62 1090 Palm rest assembly with cables 65 1100 PCI Express Mini Card for wireless LAN . . 68 1110 Backup battery 69 1120 Bluetooth daughter card (BDC-2) . . . . . 70 1130 Keyboard 71 1140 Keyboard bezel 74 1150 LCD unit 76 1160 Top shielding assembly 79 1170 System board assembly 81 i