Lenovo ThinkPad X121e Safety and Warranty Guide - ThinkPad X121e - 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 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 message 20 Strategy for replacing FRUs for CTO, CMV, and GAV 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 Diagnostics using PC-Doctor for DOS. . . . 24 Lenovo ThinkVantage Toolbox 26 FRU tests 27 Power system checkout 28 Checking the ac power adapter 28 Checking operational charging 29 Checking the battery pack 29 Checking the backup battery 30 Chapter 4. Related service information 31 Restoring the factory contents by using Recovery Disc Set 31 Passwords 32 Power-on password 32 Hard disk password 32 Supervisor password 33 How to remove the power-on password . . . 33 How to remove the hard-disk password . . . 33 Power management 34 Screen blank mode 34 © Copyright Lenovo 2011 Sleep (standby) mode 34 Hibernation mode 35 Symptom-to-FRU index 35 Numeric error codes 36 Error messages 37 Beep symptoms 37 No-beep symptoms 37 LCD-related symptoms 38 Intermittent problems 38 Undetermined problems 39 Chapter 5. Status indicators . . . . . 41 Chapter 6. Fn key combinations . . . 43 Chapter 7. FRU replacement notices 45 Screw notices 45 Retaining serial numbers 46 Restoring the serial number of the system unit 46 Retaining the UUID 47 Reading or writing the ECA information . . . 47 Chapter 8. Removing and replacing a FRU 49 Before servicing ThinkPad X121e models . . . . 49 1010 Battery pack 50 1020 Bottom slot cover 51 1030 Memory modules 52 1040 Hard disk drive or solid state drive assembly 53 1050 PCI Express Mini Card for wireless LAN . . 54 1060 PCI Express Mini Card for wireless WAN . . 56 1070 Keyboard 57 1080 Power sub card and microphone . . . . . 59 1090 Top case assembly 60 1100 Bluetooth daughter card 62 1110 Speaker assembly 63 1120 I/O board 64 1130 System board assembly, fan assembly, and backup battery 65 1140 CRT board assembly (with cable) . . . . . 67 1150 DC-in sub card and base cover assembly . . 68 2010 LCD unit 71 2020 LCD bezel assembly 73 2030 Integrated camera 74 2040 LCD panel, LCD cable, and hinges . . . . 75 i

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Contents
About this manual
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iii
Chapter 1. Safety information
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1
General safety
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1
Electrical safety
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Safety inspection guide
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3
Handling devices that are sensitive to electrostatic
discharge
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Grounding requirements
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Safety notices (multilingual translations)
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4
Chapter 2.
Important service
information
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19
Strategy for replacing FRUs
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19
Strategy for replacing a hard disk drive
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20
Important notice for replacing a system
board
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How to use error message
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20
Strategy for replacing FRUs for CTO, CMV, and
GAV
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20
Product definition
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20
FRU identification for CTO, CMV, and GAV
products
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21
Chapter 3. General checkout
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23
What to do first
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23
Checkout guide
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24
Diagnostics using PC-Doctor for DOS
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24
Lenovo ThinkVantage Toolbox
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26
FRU tests
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27
Power system checkout
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28
Checking the ac power adapter
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28
Checking operational charging
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29
Checking the battery pack
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29
Checking the backup battery
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30
Chapter 4.
Related service
information
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31
Restoring the factory contents by using Recovery
Disc Set
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31
Passwords
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32
Power-on password
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Hard disk password
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Supervisor password
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33
How to remove the power-on password .
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How to remove the hard-disk password .
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33
Power management
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34
Screen blank mode
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Sleep (standby) mode
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34
Hibernation mode
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35
Symptom-to-FRU index
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35
Numeric error codes
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Error messages
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37
Beep symptoms
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No-beep symptoms
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37
LCD-related symptoms
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38
Intermittent problems
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38
Undetermined problems
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39
Chapter 5. Status indicators
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41
Chapter 6. Fn key combinations . . .
43
Chapter 7.
FRU replacement
notices
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45
Screw notices
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45
Retaining serial numbers
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46
Restoring the serial number of the system
unit
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46
Retaining the UUID
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47
Reading or writing the ECA information .
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47
Chapter 8. Removing and replacing a
FRU
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49
Before servicing ThinkPad X121e models
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49
1010 Battery pack
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50
1020 Bottom slot cover
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51
1030 Memory modules
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52
1040 Hard disk drive or solid state drive
assembly
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53
1050 PCI Express Mini Card for wireless LAN
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54
1060 PCI Express Mini Card for wireless WAN .
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56
1070 Keyboard
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57
1080 Power sub card and microphone
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1090 Top case assembly
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1100 Bluetooth daughter card
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1110 Speaker assembly
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1120 I/O board
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64
1130 System board assembly, fan assembly, and
backup battery
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1140 CRT board assembly (with cable)
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1150 DC-in sub card and base cover assembly .
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2010 LCD unit
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2020 LCD bezel assembly
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2030 Integrated camera
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2040 LCD panel, LCD cable, and hinges
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75
© Copyright Lenovo 2011
i