Lenovo ThinkPad Edge E135 Hardware Maintenance Manual - Page 3

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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 using the recovery disc set 29 Passwords 30 Power-on password 30 Hard disk password 30 Supervisor password 31 How to remove the power-on password . . . 31 How to remove the hard disk password . . . 31 Power management 32 © Copyright Lenovo 2012 Screen blank mode 32 Sleep mode 32 Hibernation mode 33 Symptom-to-FRU index 33 Numeric error codes 34 Error messages 34 No-beep symptoms 35 LCD-related symptoms 35 Intermittent problems 35 Undetermined problems 36 Chapter 5. Status indicators . . . . . 37 Chapter 6. Special keys 39 Chapter 7. Locations 41 Locating computer controls, connectors, and indicators 41 Front view 41 Rear view 42 Bottom view 42 Locating FRUs and CRUs 42 Major FRUs and CRUs 44 LCD FRUs and CRUs 46 Looking up FRU information 47 Chapter 8. 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 9. Removing or replacing a FRU 53 General guidelines 53 Before servicing your computer 54 1010 Battery pack 54 1020 Bottom slot cover 55 1030 Memory modules 56 1040 Hard disk drive or solid-state drive . . . . 57 1050 PCI Express Mini Card for wireless LAN . . 59 1060 PCI Express Half Mini Card for wireless WAN or mSATA solid-state drive 61 1070 Keyboard 64 1080 Keyboard bezel 65 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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1
Safety inspection guide
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3
Handling devices that are sensitive to electrostatic
discharge
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3
Grounding requirements
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4
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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20
How to use error codes
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20
Strategy for replacing FRUs for CTO, CMV, and
GAV products
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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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Checkout guide
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Lenovo Solution Center
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24
Quick test programs
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24
UEFI diagnostic program
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25
Bootable diagnostic programs
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25
Power system checkout
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26
Checking the ac power adapter
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26
Checking operational charging
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27
Checking the battery pack
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27
Checking the backup battery
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27
Chapter 4. Related service
information
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29
Restoring the factory contents using the recovery
disc set
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29
Passwords
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30
Power-on password
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30
Hard disk password
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30
Supervisor password
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31
How to remove the power-on password .
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How to remove the hard disk password .
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31
Power management
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32
Screen blank mode
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Sleep mode
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Hibernation mode
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33
Symptom-to-FRU index
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33
Numeric error codes
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34
Error messages
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34
No-beep symptoms
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35
LCD-related symptoms
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35
Intermittent problems
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35
Undetermined problems
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36
Chapter 5. Status indicators
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37
Chapter 6. Special keys
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39
Chapter 7. Locations
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41
Locating computer controls, connectors, and
indicators
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41
Front view
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41
Rear view
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42
Bottom view
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42
Locating FRUs and CRUs
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42
Major FRUs and CRUs
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44
LCD FRUs and CRUs
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46
Looking up FRU information
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47
Chapter 8. FRU replacement
notices
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49
Screw notices
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49
Retaining serial numbers
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50
Restoring the serial number of the system
unit
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50
Retaining the UUID
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51
Reading or writing the ECA information .
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51
Chapter 9. Removing or replacing a
FRU
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53
General guidelines
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53
Before servicing your computer
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54
1010 Battery pack
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54
1020 Bottom slot cover
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55
1030 Memory modules
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56
1040 Hard disk drive or solid-state drive
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57
1050 PCI Express Mini Card for wireless LAN
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59
1060 PCI Express Half Mini Card for wireless WAN
or mSATA solid-state drive
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61
1070 Keyboard
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64
1080 Keyboard bezel
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65
© Copyright Lenovo 2012
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