Lenovo ThinkPad Edge E431 Hardware Maintenance Manual
Lenovo ThinkPad Edge E431 Manual
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- Lenovo ThinkPad Edge E431 | Hardware Maintenance Manual - Page 1
Hardware Maintenance Manual ThinkPad Edge E431 - Lenovo ThinkPad Edge E431 | Hardware Maintenance Manual - Page 2
and the product it supports, be sure to read the general information under Appendix A "Notices" on page 117. Second Edition (May 2013) © Copyright Lenovo 2013. LIMITED AND RESTRICTED RIGHTS NOTICE: If data or software is delivered pursuant a General Services Administration "GSA" contract, use - Lenovo ThinkPad Edge E431 | Hardware Maintenance Manual - Page 3
your computer 34 Resetting your computer to the factory default settings 34 © Copyright Lenovo 2013 Using the advanced startup options . . . . 35 Recovering your operating system if Windows 8 fails to start 35 Creating and using recovery media . . . . . 35 Passwords 36 Power-on password 36 - Lenovo ThinkPad Edge E431 | Hardware Maintenance Manual - Page 4
. 71 1090 Wireless LAN card 73 1100 Backup battery 74 1110 Thermal fan assembly 75 1120 Keyboard 77 1130 Keyboard bezel 83 1140 Microprocessor support bracket 91 1180 Speaker assembly 94 1190 Power button sub card 95 1200 LCD unit 95 1210 Base cover assembly 100 For models with non-touch - Lenovo ThinkPad Edge E431 | Hardware Maintenance Manual - Page 5
manual This manual contains service and reference information for the following ThinkPad® products: ThinkPad Edge E431 Machine Types (MT) 6277 and 6886 Use this manual along with the advanced diagnostic tests to troubleshoot problems. Important: This manual is intended only for trained service - Lenovo ThinkPad Edge E431 | Hardware Maintenance Manual - Page 6
iv Hardware Maintenance Manual - Lenovo ThinkPad Edge E431 | Hardware Maintenance Manual - Page 7
presents the following safety information that you need to be familiar with before you service a ThinkPad notebook computer. • "General safety" on page 1 • "Electrical safety" on page 2 • "Safety inspection guide" on page 3 • "Handling devices that are sensitive to electrostatic discharge" on page - Lenovo ThinkPad Edge E431 | Hardware Maintenance Manual - Page 8
power- Instructions power has been disconnected from a circuit. First, check that it has been powered power extension cables, power surges, and missing safety grounds. • Do not touch touching can cause personal injury and machine damage. • Do not service the following parts with the power on: - Power - Lenovo ThinkPad Edge E431 | Hardware Maintenance Manual - Page 9
ground. b. The power cord should be the authorized type specified for your computer. Go to: http://www.lenovo.com/serviceparts-lookup. c. Insulation must not be frayed or worn. 4. Check for cracked or bulging batteries. 5. Remove the cover. 6. Check for any obvious non-ThinkPad alterations. Use good - Lenovo ThinkPad Edge E431 | Hardware Maintenance Manual - Page 10
part from touching your specific service requirement. Note: The use of a grounding system to guard against ESD damage is desirable but not necessary. - Attach the ESD ground clip to any frame ground, ground braid, or green-wire ground. - When working on a double-insulated or battery Manual - Lenovo ThinkPad Edge E431 | Hardware Maintenance Manual - Page 11
DANGER DANGER DANGER DANGER DANGER DANGER Chapter 1. Safety information 5 - Lenovo ThinkPad Edge E431 | Hardware Maintenance Manual - Page 12
DANGER 6 Hardware Maintenance Manual - Lenovo ThinkPad Edge E431 | Hardware Maintenance Manual - Page 13
PERIGO PERIGO PERIGO Chapter 1. Safety information 7 - Lenovo ThinkPad Edge E431 | Hardware Maintenance Manual - Page 14
PERIGO PERIGO PERIGO PERIGO PERIGO 8 Hardware Maintenance Manual - Lenovo ThinkPad Edge E431 | Hardware Maintenance Manual - Page 15
DANGER DANGER DANGER DANGER DANGER Chapter 1. Safety information 9 - Lenovo ThinkPad Edge E431 | Hardware Maintenance Manual - Page 16
DANGER DANGER DANGER VORSICHT VORSICHT 10 Hardware Maintenance Manual - Lenovo ThinkPad Edge E431 | Hardware Maintenance Manual - Page 17
VORSICHT VORSICHT VORSICHT VORSICHT VORSICHT VORSICHT Chapter 1. Safety information 11 - Lenovo ThinkPad Edge E431 | Hardware Maintenance Manual - Page 18
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Chapter 1. Safety information 13 - Lenovo ThinkPad Edge E431 | Hardware Maintenance Manual - Page 20
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Chapter 1. Safety information 15 - Lenovo ThinkPad Edge E431 | Hardware Maintenance Manual - Page 22
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Laser compliance statement (multilingual translations) The laser compliance statements in this section are provided in the following languages: • English • Arabic • Brazilian Portuguese • French • German • Hebrew • Japanese • Korean • Spanish • Traditional Chinese Chapter 1. Safety information 17 - Lenovo ThinkPad Edge E431 | Hardware Maintenance Manual - Page 24
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Chapter 1. Safety information 19 - Lenovo ThinkPad Edge E431 | Hardware Maintenance Manual - Page 26
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Chapter 1. Safety information 21 - Lenovo ThinkPad Edge E431 | Hardware Maintenance Manual - Page 28
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this manual. After a system board is replaced, ensure that the latest UEFI BIOS is loaded to the system board before you complete the service action. To download and install software fixes, drivers, and UEFI BIOS, go to http://www.lenovo.com/ThinkPadDrivers and follow the instructions on the screen - Lenovo ThinkPad Edge E431 | Hardware Maintenance Manual - Page 30
installing it on the computer you are servicing. Otherwise, the M.2 solid-state drive will not function correctly. For instructions on how to partition an M.2 solid-state drive, go to http://www.lenovo.com/support/msata-fru. Important notice for replacing a system board Some components mounted on - Lenovo ThinkPad Edge E431 | Hardware Maintenance Manual - Page 31
for a product. To get the general FRU list for a product, do the following: 1. Go to: http://www.lenovo.com/support 2. Click Parts & Accessories. 3. Follow the instructions on the screen to select product. 4. Click Products and Parts Detail. 5. On the PRODUCT AND PARTS DETAIL page, click the Parts - Lenovo ThinkPad Edge E431 | Hardware Maintenance Manual - Page 32
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to the checkout guide, be sure to read the following important notes. Important notes: • Only certified trained personnel should service the computer. • Before replacing any FRU, read the entire page on removing and replacing FRUs. • When you replace FRUs, it is recommended to use new nylon-coated - Lenovo ThinkPad Edge E431 | Hardware Maintenance Manual - Page 34
, and then follow the instructions on the screen. For more information about the Lenovo Solution Center program, refer to the help information system of the program. Quick test programs Run quick test programs to troubleshoot and resolve computer problems, especially when the computer does - Lenovo ThinkPad Edge E431 | Hardware Maintenance Manual - Page 35
-to-FRU index" on page 39 for error code descriptions and troubleshooting hints. 2. When the ThinkPad logo is displayed, repeatedly press and release the F10 key. The main screen of the UEFI diagnostic program is displayed. 3. Follow the instructions on the screen to use the program. The options on - Lenovo ThinkPad Edge E431 | Hardware Maintenance Manual - Page 36
battery pack" on page 31 • "Checking the backup battery" on page 32 Checking the ac power adapter If your computer fails only when the ac power adapter is used, use the following instructions. • If the power problem occurs only when the dock is used, replace the dock. 30 Hardware Maintenance Manual - Lenovo ThinkPad Edge E431 | Hardware Maintenance Manual - Page 37
the same error still exists, replace the system board. Otherwise, check the original battery pack. See "Checking the battery pack" on page 31. Checking the battery pack This system supports only batteries specially designed for this specific system and manufactured by Lenovo or an authorized builder - Lenovo ThinkPad Edge E431 | Hardware Maintenance Manual - Page 38
must be 4 to 30 K Ω. If the resistance is not correct, replace the battery pack. If the resistance is correct, replace the system board. Checking the backup battery Do the following: 1. Power off the computer, and unplug the ac power adapter from it. 2. Turn the computer upside down. 3. Remove the - Lenovo ThinkPad Edge E431 | Hardware Maintenance Manual - Page 39
lenovo.com/support. Restoring the factory contents by using the product Recovery Disc Set When the main storage device is replaced because of a failure, no product recovery program is on the new Follow the instructions on the screen to finish the recovery. Note: The rest of the recovery process is - Lenovo ThinkPad Edge E431 | Hardware Maintenance Manual - Page 40
image enables you to refresh your computer, or reset your computer to the factory default settings. You can create recovery media as backups or replacement for the Windows recovery image. With the recovery media, you can troubleshoot and fix the problems on your computer even if you cannot start - Lenovo ThinkPad Edge E431 | Hardware Maintenance Manual - Page 41
connected to ac power during the recovery process. Creating and using recovery media You can create recovery media as backups for the Windows recovery environment and the Windows recovery image. If you cannot start the computer, you can use recovery media to troubleshoot and fix the problems on your - Lenovo ThinkPad Edge E431 | Hardware Maintenance Manual - Page 42
to reset your computer to the factory default settings. For more information about the recovery solutions provided by the Windows 8 operating system, go to: http://go.microsoft.com/fwlink/?LinkID=263800 Passwords As many as three passwords might be needed for a ThinkPad notebook computer: the power - Lenovo ThinkPad Edge E431 | Hardware Maintenance Manual - Page 43
is available, neither Lenovo nor Lenovo authorized service technicians provide any services to reset either the user hard disk password or the master hard disk password, or to recover data from the hard disk drive. The hard disk drive can be replaced for a scheduled fee. For instructions on how to - Lenovo ThinkPad Edge E431 | Hardware Maintenance Manual - Page 44
and cannot be made available to the service technician, neither Lenovo nor Lenovo authorized service technicians provide any services to reset the user hard disk password, or to recover data from the hard disk drive. The hard disk drive can be replaced for a scheduled fee. To put the system - Lenovo ThinkPad Edge E431 | Hardware Maintenance Manual - Page 45
icon, and then select Sleep. To return from sleep mode, press any key. • For Windows 8: Move the cursor to the bottom-right corner of the screen to display the charms. Then click Settings ➙ Power ➙ Sleep. In certain circumstances, the computer goes into sleep mode automatically: • After a period of - Lenovo ThinkPad Edge E431 | Hardware Maintenance Manual - Page 46
. If the symptom is not described there, go to "Intermittent problems" on page 43. Note: For a device not supported by diagnostic codes in the ThinkPad notebooks, see the manual for that device. Numeric error codes Table 2. Numeric error codes Symptom or error (beeps, if any) FRU or action, in - Lenovo ThinkPad Edge E431 | Hardware Maintenance Manual - Page 47
or action, in sequence 1. Charge the backup battery for more than 8 hours by connecting the ac power adapter. 2. Replace the backup battery and run the ThinkPad Setup program to reset the time and date. 1. Run ThinkPad Setup to reconfigure the settings. 2. Replace the system board. 0271 Real-Time - Lenovo ThinkPad Edge E431 | Hardware Maintenance Manual - Page 48
error. The battery installed is not supported by this system and will not charge. Please replace the battery with the correct Lenovo battery for this system 2. Reseat memory module. 3. Replace the system board. 1. Reseat memory module. 2. Replace the system board. A power-on password or a supervisor - Lenovo ThinkPad Edge E431 | Hardware Maintenance Manual - Page 49
defective pixels, it will be deemed as defective by Lenovo and it should be replaced. Notes: • This policy applies to all ThinkPad Notebooks purchased on 1 January, 2008 or later. • Lenovo will not provide warranty replacement if the LCD is within specifications because we cannot guarantee that any - Lenovo ThinkPad Edge E431 | Hardware Maintenance Manual - Page 50
Turn off the computer. 2. Visually check each FRU for damage. Replace any damaged FRU. 3. Remove or disconnect all of the following devices: a. Non-ThinkPad devices b. Devices attached to the dock c. Printer, mouse, and other external devices d. Battery pack e. Hard disk drive or solid-state drive - Lenovo ThinkPad Edge E431 | Hardware Maintenance Manual - Page 51
-muter indicator On: The speakers are muted. 2 Microphone-mute indicator On: The microphones are muted. 3 Camera status indicator On: The camera is in use. © Copyright Lenovo 2013 45 - Lenovo ThinkPad Edge E431 | Hardware Maintenance Manual - Page 52
(continued) Indicator Meaning 4 6 System status indicator Blinking three times: The computer is initially connected to power. On: The computer is in use. Off: The computer is off or in hibernation mode. Slow To input F1-F12, press the function keys directly. 46 Hardware Maintenance Manual - Lenovo ThinkPad Edge E431 | Hardware Maintenance Manual - Page 53
. Has the same function as the Break key on a conventional keyboard. Has the same function as the Pause key on a conventional keyboard. Has the same function as the SysRq key on a conventional keyboard. Has the same function as the ScrLK key on a conventional keyboard. © Copyright Lenovo 2013 47 - Lenovo ThinkPad Edge E431 | Hardware Maintenance Manual - Page 54
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8 3 4 5 6 7 1 Microphones 2 Camera 3 Lenovo OneLink connector 4 ac power connector 5 Ethernet connector 6 Optical drive or blank bezel 7 indicator1 9 Fingerprint reader (on some models) 10 Touch pad 11 TrackPoint® pointing stick 12 Power button 1: For the description of the system status - Lenovo ThinkPad Edge E431 | Hardware Maintenance Manual - Page 56
cover1 2 Battery pack latches 3 Battery pack 4 Large bottom cover2 5 Built-in stereo speakers 6 Media card reader slot 1: The wireless LAN card and backup battery are located following service parts: • "Major FRUs and CRUs" on page 52 • "LCD FRUs and CRUs" on page 54 50 Hardware Maintenance Manual - Lenovo ThinkPad Edge E431 | Hardware Maintenance Manual - Page 57
a list of CRUs for your product in this Hardware Maintenance Manual. An electronic version of this manual can be found at http://www.lenovo.com/support. Click User Guides & Manuals and then follow the on-screen instructions to find the manual for your product. You might be required to return the - Lenovo ThinkPad Edge E431 | Hardware Maintenance Manual - Page 58
Major FRUs and CRUs 1 23 22 2 3 21 4 20 5 19 5 18 6 7 17 8 16 9 10 11 15 12 14 13 52 Hardware Maintenance Manual - Lenovo ThinkPad Edge E431 | Hardware Maintenance Manual - Page 59
unit 2 Power button board 3 Keyboard bezel assembly with touch pad (with fingerprint reader on some models) 4 Backup battery 5 Wireless WAN card 5 M.2 solid-state drive 6 Wireless LAN card 7 Battery pack 8 Lenovo OneLink connector cover 9 DC-in bracket and DC-in support bracket - Lenovo ThinkPad Edge E431 | Hardware Maintenance Manual - Page 60
LCD FRUs and CRUs For models with non-touch panel 7 6 54 Hardware Maintenance Manual 11 2 3 5 3 4 4 - Lenovo ThinkPad Edge E431 | Hardware Maintenance Manual - Page 61
description 1 LCD bezel assembly 2 Hinge kit 3 Wireless LAN and wireless WAN antenna assembly 3 Wireless LAN antenna assembly 4 Camera with microphone combo card 4 Microphone combo card 5 LCD cover kit 6 LCD cable assembly 7 LCD non-touch panel Self-service CRU No No No No No No - Lenovo ThinkPad Edge E431 | Hardware Maintenance Manual - Page 62
For models with touch panel 1 2 3 3 4 5 8 6 37 56 Hardware Maintenance Manual - Lenovo ThinkPad Edge E431 | Hardware Maintenance Manual - Page 63
LAN antenna assembly 8 LCD cover kit Miscellaneous kits and other FRUs Miscellaneous kits FRU description Screw kit • Screw kit for non-touch • Screw kit for touch Rubber kit • LCD rubber caps (2) • LCD screw mylar (2) Other FRUs FRU description ac power adapter Power cord Self-service - Lenovo ThinkPad Edge E431 | Hardware Maintenance Manual - Page 64
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a list of CRUs for your product in this Hardware Maintenance Manual. An electronic version of this manual can be found at http://www.lenovo.com/support. Click User Guides & Manuals and then follow the on-screen instructions to find the manual for your product. You might be required to return the - Lenovo ThinkPad Edge E431 | Hardware Maintenance Manual - Page 66
the life of the computer. If you replace the system board, you must restore the serial number of the system unit to its original value. Before replacing the system board, save the original serial number by doing the following: 1. Install the latest version of LENOVO ThinkPad Hardware Maintenance - Lenovo ThinkPad Edge E431 | Hardware Maintenance Manual - Page 67
in the world have the same number. When you replace the system board, follow the following steps to create new UUID for the system board if the system board does not have a UUID: 1. Install the latest version of LENOVO ThinkPad Hardware Maintenance Diskette or Maintenance Key, and then restart - Lenovo ThinkPad Edge E431 | Hardware Maintenance Manual - Page 68
If the system board is being replaced, try to read the ECA information from the old system board and transfer the information to the new system. If the system board is inoperable, this will not be possible. 62 Hardware Maintenance Manual - Lenovo ThinkPad Edge E431 | Hardware Maintenance Manual - Page 69
a list of CRUs for your product in this Hardware Maintenance Manual. An electronic version of this manual can be found at http://www.lenovo.com/support. Click User Guides & Manuals and then follow the on-screen instructions to find the manual for your product. You might be required to return the - Lenovo ThinkPad Edge E431 | Hardware Maintenance Manual - Page 70
has installed. In such situations, remove the SIM card before you start the servicing. To remove the SIM card, you need to remove the battery pack first. See "1020 Battery pack" on page 65. After you finish the servicing, ensure that you insert the card back into the slot firmly. 1 2 64 Hardware - Lenovo ThinkPad Edge E431 | Hardware Maintenance Manual - Page 71
shown in the following illustration. Note: Ensure that you reattach the connector cover to the Lenovo OneLink connector after finishing the servicing. 1020 Battery pack Important notice for replacing a battery pack Attention: Lenovo has no responsibility for the performance or safety of unauthorized - Lenovo ThinkPad Edge E431 | Hardware Maintenance Manual - Page 72
into the slot. Ensure that the battery latch is in the locked position. 1030 Large bottom cover For access, remove this FRU: • "1020 Battery pack" on page 65 Removal steps of the large bottom cover Loosen the screws 1 and then remove the large bottom cover 2 . 1 2 1 1 66 Hardware Maintenance Manual - Lenovo ThinkPad Edge E431 | Hardware Maintenance Manual - Page 73
When installing: Attach the large bottom cover as shown in the following illustration. 1040 Small bottom cover For access, remove this FRU: • "1020 Battery pack" on page 65 Removal steps of the small bottom cover Loosen the screws 1 and then remove the small bottom cover 2 . 2 1 When installing: - Lenovo ThinkPad Edge E431 | Hardware Maintenance Manual - Page 74
or blank bezel For access, remove these FRUs in order: • "1020 Battery pack" on page 65 • "1030 Large bottom cover" on page 66 Removal 2 1060 Memory modules For access, remove these FRUs in order: • "1020 Battery pack" on page 65 • "1030 Large bottom cover" on page 66 68 Hardware Maintenance - Lenovo ThinkPad Edge E431 | Hardware Maintenance Manual - Page 75
module is to be installed on the computer you are servicing, the memory module must be installed in the in the access, remove these FRUs in order: • "1020 Battery pack" on page 65 • "1030 Large bottom cover data. • Before removing the drive, have the user make a backup copy of all the information on - Lenovo ThinkPad Edge E431 | Hardware Maintenance Manual - Page 76
0.181 Nm (1.85 kgf-cm) When installing: Ensure that the hard disk drive assembly or solid-state drive assembly is attached firmly. 70 Hardware Maintenance Manual - Lenovo ThinkPad Edge E431 | Hardware Maintenance Manual - Page 77
(quantity) M3 × 3 mm, wafer-head, nylon-coated (4) Color Silver 1080 Wireless WAN card or M.2 solid-state drive For access, remove these FRUs in order: • "1020 Battery pack" on page 65 • "1030 Large bottom cover" on page 66 Torque 0.181 Nm (1.85 kgf-cm) Chapter 9. Removing or - Lenovo ThinkPad Edge E431 | Hardware Maintenance Manual - Page 78
any physical shock to it. The drive is sensitive to physical shock. Improper handling can cause damage and permanent loss of data. 72 Hardware Maintenance Manual - Lenovo ThinkPad Edge E431 | Hardware Maintenance Manual - Page 79
-state drive after installing it on the computer you are servicing. Otherwise, the M.2 solid-state drive will not function correctly. For instructions on on how to partition an M.2 solid-state drive, go to http://www.lenovo.com/support/msata-fru. 1 Step 1 Screw (quantity) M2 × 3.5 mm, wafer-head - Lenovo ThinkPad Edge E431 | Hardware Maintenance Manual - Page 80
Removal steps of the wireless LAN card In step 1 , unplug the connectors by using the antenna RF connector the black cable into the connector marked AUX or A on the card. 1100 Backup battery For access, remove these FRUs in order: • "1020 Battery pack" on page 65 74 Hardware Maintenance Manual - Lenovo ThinkPad Edge E431 | Hardware Maintenance Manual - Page 81
computer. Any other battery could ignite or explode. 2 1 When installing: Ensure that the connector is attached firmly. 1110 Thermal fan assembly For access, remove these FRUs in order: • "1020 Battery pack" on page 65 • "1030 Large bottom cover" on page 66 Chapter 9. Removing or replacing a FRU 75 - Lenovo ThinkPad Edge E431 | Hardware Maintenance Manual - Page 82
: Different models might have different numbers of screws. 3. Remove the thermal fan assembly. 2g 2e 2f 3a 2c 2b 2d 3b 2a 4 76 Hardware Maintenance Manual - Lenovo ThinkPad Edge E431 | Hardware Maintenance Manual - Page 83
. Either too much or too less application of grease can cause a thermal problem due to imperfect contact with a component. You need to peel the thin thermal pipes b a 1120 Keyboard For access, remove these FRUs in order: • "1020 Battery pack" on page 65 Chapter 9. Removing or replacing a FRU 77 - Lenovo ThinkPad Edge E431 | Hardware Maintenance Manual - Page 84
-tool. The following illustration shows a keyboard multi-tool. Removal steps of the keyboard 1. Unlock the keyboard frame. 1 2. To reveal the screw heads beneath the keyboard frame, slide the keyboard frame forward by 2.5 mm (0.1 inch) with the keyboard multi-tool. 2 78 Hardware Maintenance Manual - Lenovo ThinkPad Edge E431 | Hardware Maintenance Manual - Page 85
3. Loosen the screws that secure the keyboard with the keyboard multi-tool. 3 4. Pivot the keyboard slightly upward until you can see the connectors on the bottom side of the keyboard. Then turn over the keyboard. 5 4 Chapter 9. Removing or replacing a FRU 79 - Lenovo ThinkPad Edge E431 | Hardware Maintenance Manual - Page 86
5. Gently put the keyboard on the palm rest and detach the connectors. Then remove the keyboard. 6 7 8 9 Installation steps of the keyboard 1. Attach the connectors and then turn over the keyboard. 4 3 2 1 5 80 Hardware Maintenance Manual - Lenovo ThinkPad Edge E431 | Hardware Maintenance Manual - Page 87
2. Insert the keyboard into the space under the frame of the keyboard bezel. 6 6 3. Reveal the screw heads by sliding the keyboard frame forward with the keyboard multi-tool. Ensure that the screw heads are exposed completely. 7 Chapter 9. Removing or replacing a FRU 81 - Lenovo ThinkPad Edge E431 | Hardware Maintenance Manual - Page 88
with the keyboard multi-tool to secure the keyboard in place. 8 5. Slide the keyboard frame backward by 2.5 mm (0.1 inch) with the keyboard multi-tool. Hide the latches of the keyboard frame under the keyboard bezel by pushing the latches with your finger as shown. 9 9 82 Hardware Maintenance Manual - Lenovo ThinkPad Edge E431 | Hardware Maintenance Manual - Page 89
, remove these FRUs in order: • "1020 Battery pack" on page 65 • "1030 Large bottom cover" on page 66 • "1050 Optical drive or blank bezel" on page 68 • "1070 Hard disk drive assembly or solid-state drive assembly" on page 69 • "1120 Keyboard" on page 77 Chapter 9. Removing or replacing a FRU 83 - Lenovo ThinkPad Edge E431 | Hardware Maintenance Manual - Page 90
Removal steps of the keyboard bezel assembly 1 1 2 2 2 1 1 1 1 1 1 1 1 1 1 Step 1 2 Screw (quantity) M2 × 7 mm, wafer-head, nylon-coated (12) M2 × 2.5 mm, wafer- Screw (quantity) M2 × 7 mm, wafer-head, nylon-coated (3) Color Black Torque 0.181 Nm (1.85 kgf-cm) 84 Hardware Maintenance Manual - Lenovo ThinkPad Edge E431 | Hardware Maintenance Manual - Page 91
8 9 6 7 5 4 When installing: Ensure that the connectors are attached firmly to the system board. 10 When installing: Ensure that the connectors are attached firmly to the system board. Chapter 9. Removing or replacing a FRU 85 - Lenovo ThinkPad Edge E431 | Hardware Maintenance Manual - Page 92
Microprocessor For access, remove these FRUs in order: • "1020 Battery pack" on page 65 • "1030 Large bottom cover" on page 66 • "1110 Thermal fan assembly" on page 75 Attention: The microprocessor is extremely sensitive. When you service the microprocessor, avoid any kind of rough handling. 86 - Lenovo ThinkPad Edge E431 | Hardware Maintenance Manual - Page 93
sure to put it only on a padded surface such as an ESD mat or a corrugated conductive surface. For access, remove these FRUs in order: • "1020 Battery pack" on page 65 • "1030 Large bottom cover" on page 66 • "1040 Small bottom cover" on page 67 Chapter 9. Removing or - Lenovo ThinkPad Edge E431 | Hardware Maintenance Manual - Page 94
1080 Wireless WAN card or M.2 solid-state drive" on page 71 • "1090 Wireless LAN card" on page 73 • "1100 Backup battery" on page 74 • "1110 Thermal fan assembly" on page 75 • "1120 Keyboard" on page 77 • "1130 Keyboard bezel" on page 83 • "1140 Microprocessor" on page 86 Removal steps of the system - Lenovo ThinkPad Edge E431 | Hardware Maintenance Manual - Page 95
6 1 2 5 3 4 When installing: Ensure that the connectors are attached firmly to the system board. 7 8 When installing: Ensure that the connectors are attached firmly to the system board. Chapter 9. Removing or replacing a FRU 89 - Lenovo ThinkPad Edge E431 | Hardware Maintenance Manual - Page 96
(1.85 kgf-cm) 0.181 Nm (1.85 kgf-cm) 6 11 5 1160 Card reader with USB connector sub card For access, remove these FRUs in order: • "1020 Battery pack" on page 65 • "1030 Large bottom cover" on page 66 • "1050 Optical drive or blank bezel" on page 68 • "1070 Hard disk drive assembly - Lenovo ThinkPad Edge E431 | Hardware Maintenance Manual - Page 97
(1.85 kgf-cm) 6 4 1170 DC-in bracket, DC-in connector with RJ45 sub card, and DC-in support bracket For access, remove these FRUs in order: • "1010 Lenovo OneLink connector cover" on page 65 • "1020 Battery pack" on page 65 • "1030 Large bottom cover" on page 66 • "1050 Optical drive or blank bezel - Lenovo ThinkPad Edge E431 | Hardware Maintenance Manual - Page 98
• "1130 Keyboard bezel" on page 83 Removal steps of the DC-in bracket 1 2 5 Step 1 Screw (quantity) M2 × 3.5 mm, wafer-head, nylon-coated (1) Removal steps of the DC-in connector with RJ45 sub card Color Black Torque 0.181 Nm (1.85 kgf-cm) 1 92 Hardware Maintenance Manual - Lenovo ThinkPad Edge E431 | Hardware Maintenance Manual - Page 99
2 6 3 4 5 6 5 Removal steps of the DC-in support bracket 6 5 6 5 Chapter 9. Removing or replacing a FRU 93 - Lenovo ThinkPad Edge E431 | Hardware Maintenance Manual - Page 100
" on page 71 • "1090 Wireless LAN card" on page 73 • "1100 Backup battery" on page 74 • "1110 Thermal fan assembly" on page 75 • "1120 Keyboard" on page 77 • "1130 Keyboard bezel" on page 83 • "1150 -coated, big head (2) Color Black Torque 0.181 Nm (1.85 kgf-cm) 94 Hardware Maintenance Manual - Lenovo ThinkPad Edge E431 | Hardware Maintenance Manual - Page 101
: • "1010 Lenovo OneLink connector cover" on page 65 • "1020 Battery pack" on page 65 • "1030 Large bottom cover" on page 66 • "1040 Small bottom cover" on page 67 • "1050 Optical drive or blank bezel" on page 68 Color Black Torque 0.181 Nm (1.85 kgf-cm) Chapter 9. Removing or replacing a FRU 95 - Lenovo ThinkPad Edge E431 | Hardware Maintenance Manual - Page 102
69 • "1080 Wireless WAN card or M.2 solid-state drive" on page 71 • "1090 Wireless LAN card" on page 73 • "1100 Backup battery" on page 74 • "1110 Thermal fan assembly" on page 75 • "1120 Keyboard" on page 77 • "1130 Keyboard bezel" on page 83 • "1150 System board assembly" on page 87 • "1170 DC-in - Lenovo ThinkPad Edge E431 | Hardware Maintenance Manual - Page 103
In step 2 , release the wireless antenna cables from the cable guides. 2 2 22 2 2 22 22 2 2 3 5 3 Chapter 9. Removing or replacing a FRU 97 - Lenovo ThinkPad Edge E431 | Hardware Maintenance Manual - Page 104
In step 4 and step 5 , release wireless antenna cables from the cable guides. 4 4 4 4 4 4 98 Hardware Maintenance Manual - Lenovo ThinkPad Edge E431 | Hardware Maintenance Manual - Page 105
55 5 5 6 6 6 5 Chapter 9. Removing or replacing a FRU 99 - Lenovo ThinkPad Edge E431 | Hardware Maintenance Manual - Page 106
• "1090 Wireless LAN card" on page 73 • "1100 Backup battery" on page 74 • "1110 Thermal fan assembly" on page 75 • "1120 Keyboard" on page 77 • "1130 Keyboard bezel" on page support bracket" on page 91 • "1180 Speaker assembly" on page 94 • "1200 LCD unit" on page 95 100 Hardware Maintenance Manual - Lenovo ThinkPad Edge E431 | Hardware Maintenance Manual - Page 107
ANATEL label for 3G wireless WAN card 18 Brazil ANATEL label for Bluetooth 19 Brazil ANATEL label for wireless LAN card 20 China product label 21 China GEO label 22 Asset tag If the removed base cover has two FCC labels, apply both to the new base cover. Chapter 9. Removing or replacing a FRU 101 - Lenovo ThinkPad Edge E431 | Hardware Maintenance Manual - Page 108
non-touch panel 2010 LCD bezel assembly For access, remove these FRUs in order: • "1010 Lenovo OneLink connector cover" on page 65 • "1020 Battery pack" page 71 • "1090 Wireless LAN card" on page 73 • "1100 Backup battery" on page 74 • "1120 Keyboard" on page 77 • "1130 Keyboard bezel" on page 83 • - Lenovo ThinkPad Edge E431 | Hardware Maintenance Manual - Page 109
LCD non-touch panel and hinges For access, remove these FRUs in order: • "1010 Lenovo OneLink connector cover" on page 65 • "1020 Battery pack" on page 71 • "1090 Wireless LAN card" on page 73 • "1100 Backup battery" on page 74 • "1120 Keyboard" on page 77 • "1130 Keyboard bezel" on page 83 • "1150 - Lenovo ThinkPad Edge E431 | Hardware Maintenance Manual - Page 110
Removal steps of the LCD non-touch panel 1 1 1 1 Step 1 Screw (quantity) M2 × 2.5 mm, wafer-head, nylon-coated, small head (4) Color Black 4 3 Torque 0.181 Nm (1.85 kgf-cm) 2 When installing: Ensure that the LCD connector is attached firmly. 104 Hardware Maintenance Manual - Lenovo ThinkPad Edge E431 | Hardware Maintenance Manual - Page 111
and LCD cables For access, remove these FRUs in order: • "1010 Lenovo OneLink connector cover" on page 65 • "1020 Battery pack" on page 65 • "1030 Large bottom cover" on page 66 71 • "1090 Wireless LAN card" on page 73 • "1100 Backup battery" on page 74 Chapter 9. Removing or replacing a FRU 105 - Lenovo ThinkPad Edge E431 | Hardware Maintenance Manual - Page 112
• "1120 Keyboard" on page 77 • "1130 Keyboard bezel" on page 83 • "1150 System board assembly" on page 87 • "1170 DC-in bracket, DC-in connector with RJ45 sub card, and DC-in support bracket" on page 91 • "1200 LCD unit" on page 95 • "2010 LCD bezel assembly" on page 102 • "2020 LCD non-touch panel - Lenovo ThinkPad Edge E431 | Hardware Maintenance Manual - Page 113
-state drive" on page 71 • "1090 Wireless LAN card" on page 73 • "1100 Backup battery" on page 74 • "1120 Keyboard" on page 77 • "1130 Keyboard bezel" on page 83 • "1150 System board assembly guides on the LCD rear cover assembly. 1 1 2 1 1 2 2 2 Chapter 9. Removing or replacing a FRU 107 - Lenovo ThinkPad Edge E431 | Hardware Maintenance Manual - Page 114
damaged by the cable guides, or a wire to be broken. a b c d Antenna locations a Wireless LAN AUX antenna (black) b Wireless WAN AUX antenna (blue) c Wireless WAN MAIN antenna (red) d Wireless LAN MAIN antenna (gray) For models with touch panel 2010 LCD bezel and touch - Lenovo ThinkPad Edge E431 | Hardware Maintenance Manual - Page 115
bezel" on page 68 • "1070 Hard disk drive assembly or solid-state drive assembly" on page 69 • "1090 Wireless LAN card" on page 73 • "1100 Backup battery" on page 74 • "1120 Keyboard" on page 77 • "1130 Keyboard bezel" on page 83 • "1150 System board assembly" on page 87 • "1170 DC-in bracket, DC-in - Lenovo ThinkPad Edge E431 | Hardware Maintenance Manual - Page 116
Removal steps of the touch panel LCD module Note: The camera is only available in some models. 1 2 2 2 with microphone combo card For access, remove these FRUs in order: • "1010 Lenovo OneLink connector cover" on page 65 • "1020 Battery pack" on page 65 • "1030 Large bottom cover" on page 66 • - Lenovo ThinkPad Edge E431 | Hardware Maintenance Manual - Page 117
" on page 71 • "1090 Wireless LAN card" on page 73 • "1100 Backup battery" on page 74 • "1120 Keyboard" on page 77 • "1130 Keyboard bezel" on page 83 • "1150 System board assembly" on page 87 • "1170 DC-in bracket, DC-in connector with RJ45 sub card, and DC-in support bracket" on page 91 • "1200 - Lenovo ThinkPad Edge E431 | Hardware Maintenance Manual - Page 118
• "2020 Camera with microphone combo card" on page 110 Removal steps of the LCD cables 1 2 3 3 3 3 3 3 3 Removal steps of the touch panel control board cable When installing: Ensure that the connector is attached firmly. 112 Hardware Maintenance Manual - Lenovo ThinkPad Edge E431 | Hardware Maintenance Manual - Page 119
Backup battery" on page 74 • "1120 Keyboard" on page 77 • "1130 Keyboard bezel" on page 83 • "1150 System board assembly" on page 87 • "1170 DC-in bracket, DC-in connector with RJ45 sub card, and DC-in support bracket" on page 91 • "1200 LCD unit" on page 95 • "2010 LCD bezel and touch panel LCD - Lenovo ThinkPad Edge E431 | Hardware Maintenance Manual - Page 120
Backup battery" on page 74 • "1120 Keyboard" on page 77 • "1130 Keyboard bezel" on page 83 • "1150 System board assembly" on page 87 • "1170 DC-in bracket, DC-in connector with RJ45 sub card, and DC-in support bracket" on page 91 • "1200 LCD unit" on page 95 • "2010 LCD bezel and touch panel LCD - Lenovo ThinkPad Edge E431 | Hardware Maintenance Manual - Page 121
you route the cables, ensure that they are not subject to any tension. Tension could cause the cables to be damaged by the cable guides, or a wire to be broken. a b Antenna locations a Wireless LAN AUX antenna (black) b Wireless LAN MAIN antenna (gray) Chapter 9. Removing or replacing a FRU 115 - Lenovo ThinkPad Edge E431 | Hardware Maintenance Manual - Page 122
116 Hardware Maintenance Manual - Lenovo ThinkPad Edge E431 | Hardware Maintenance Manual - Page 123
document are not intended for use in implantation or other life support applications where malfunction may result in injury or death to persons. The information contained in this document does not affect or change Lenovo product specifications or warranties. Nothing in this document shall operate as - Lenovo ThinkPad Edge E431 | Hardware Maintenance Manual - Page 124
information in the User Guide. EU contact: Lenovo, Einsteinova 21, 851 01 Bratislava, Slovakia Trademarks The following terms are trademarks of Lenovo in the United States, other countries or both: Lenovo ThinkPad TrackPoint Ultrabay Microsoft, Windows, and Windows Server are trademarks - Lenovo ThinkPad Edge E431 | Hardware Maintenance Manual - Page 125
this manual. Abbreviation 3G BGA BIOS CD CMOS CMV COA CRC CRT CRU CTO DC DVD EAIA ECA EEPROM EFI EPO ESD EU FCC FRU GAV GPU HDD HDMI ICs ICCID ISO LAN LCD Interface Emergency power-off Electrostatic discharge European Union Federal Communications Commission Field Replaceable Unit General Announce - Lenovo ThinkPad Edge E431 | Hardware Maintenance Manual - Page 126
Abbreviation PC PCH PEW POST RAM RF RFID RI RJ SATA SIM SVP TFTs UEFI USB UUID VGA VRAM WAN Term Personal Computer Platform Controller Hub Product Entitlement Warehouse Power-on self-test Random Video graphics array Video Random Access Memory Wide area network 120 Hardware Maintenance Manual - Lenovo ThinkPad Edge E431 | Hardware Maintenance Manual - Page 127
- Lenovo ThinkPad Edge E431 | Hardware Maintenance Manual - Page 128
Part Number: 0C10928_01 Printed in China (1P) P/N: 0C10928_01 - Lenovo ThinkPad Edge E431 | Hardware Maintenance Manual - Page 129
*1P0C10928_01*
Hardware Maintenance Manual
ThinkPad Edge E431