Machine types (MT) 20TA, 20TB, 20T6 and 20T7 ThinkPad E15 Gen 2 Machine types (MT) 20TD, 20TE, 20T8 and 20T9 ThinkPad R14 Gen 2 Machine types (MT) 20TC Use this manual along with the advanced diagnostic tests to troubleshoot problems.
Page 6
E14 Gen 2/R14 Gen 2/E15 Gen 2 Hardware Maintenance Manual...
• Find the room emergency power-off (EPO) switch, disconnecting switch, or electrical outlet. If an electrical accident occurs, you can then operate the switch or unplug the power cord quickly. • Do not work alone under hazardous conditions or near equipment that has hazardous voltages. •...
0.1 ohm or less between the external ground pin and the frame ground. b. The power cord should be the authorized type specified for your computer. Go to: https:// www.lenovo.com/serviceparts-lookup c. Insulation must not be frayed or worn. 4. Check for cracked or bulging batteries.
– When working on a double-insulated or battery-operated system, use an ESD common ground or reference point. You can use coax or connector-outside shells on these systems. – Use the round ground prong of the ac plug on ac-operated computers. Grounding requirements Electrical grounding of the computer is required for operator safety and correct system function.
UEFI BIOS downloads. Telephone numbers for Lenovo Support are available at: https://pcsupport.lenovo.com/supportphonelist • System Disassembly/Reassembly videos that show the FRU removals or replacements for the Lenovo authorized service technicians are available in the following support site: https://www.lenovoservicetraining.com/ion/...
Dynamic Configure To Order (CTO) This model provides the ability for a customer to configure a Lenovo solution from a web site, and have this configuration sent to fulfillment, where it is built and shipped directly to the customer. The machine label and eSupport will load these products as the 4-character MT, 4-character model and 2-character country code.
Page 29
2. Type the Machine Type in the corresponding field to get a general FRU list. Or type the Serial Number for more detailed FRU information. Chapter 2 Important service information...
Page 30
E14 Gen 2/R14 Gen 2/E15 Gen 2 Hardware Maintenance Manual...
Note: If you are unable to isolate and repair the problem yourself after running the program, save and print the log files created by the program. You need the log files when you speak to a Lenovo technical support representative.
Note: The recover bad sectors tool is only available on computers that have hard disk drives installed. Bootable diagnostic programs If the computer you are servicing is not installed with the UEFI diagnostic program, you can download a bootable diagnostic program from the Lenovo Support Web site. The bootable diagnostic programs enable Chapter 3 General checkout...
1. Go to https://www.lenovo.com/diags 2. Click Lenovo Bootable Diagnostics. 3. Follow the instructions on the Web site to create a bootable diagnostic medium on a USB device or CD. To use the diagnostic medium you have created, do one of the following: •...
2. Start Lenovo Vantage program, and then click Hardware Settings ➙ Power. The ac power adapter information is displayed. Ensure that you use the USB-C type ac power adapter that is shipped with the computer to provide enough power to the computer. Otherwise, a message will be displayed, prompting you that the computer will not be charged or will be charged slowly.
Page 36
E14 Gen 2/R14 Gen 2/E15 Gen 2 Hardware Maintenance Manual...
Reset or restore Windows To reset or restore Windows, refer to the information below: • Use Lenovo recovery options. 1. Go to https://support.lenovo.com/HowToCreateLenovoRecovery 2. Follow the on-screen instructions. • Use Window recovery options.
If it has, it can be used for access to the hard disk drive. If no master hard disk password is available, neither Lenovo nor Lenovo authorized service technicians provide any services to reset either the user 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.
To put the system back to operational status, the only Lenovo and Lenovo-authorized service solution would be to replace the hard disk drive, hybrid drive, or solid-state drive with a scheduled fee.
• The time set on the resume timer elapses. Note: The computer does not accept any input immediately after it enters sleep mode. Wait a few seconds before taking any action to reenter operation mode. Hibernation mode In hibernation mode, the following occurs: •...
Note: For a device not supported by diagnostic codes in the ThinkPad notebook computers, see the manual for that device. Numeric error codes Table 2. Numeric error codes Symptom or error FRU or action, in sequence 0177 Replace the system board. Bad SVP data, stop POST task—...
Beep errors Lenovo SmartBeep technology enables you to decode beep errors with your smartphone when a black screen occurs with beeps from your computer. To decode the beep error with Lenovo SmartBeep technology, do the following: 1.
Page 43
The following section describes some beep errors and the corresponding solutions. Note: Do not attempt to service a product yourself unless instructed to do so by the Customer Support Center or product documentation. Only use a Lenovo-authorized service provider to repair your product. Error codes...
LCD technology, but excessive pixel problems can cause viewing concerns.If the LCD you are servicing has two or less visible defective pixels, it should not be considered faulty. However, if the LCD has three or more visible defective pixels, it will be deemed as defective by Lenovo and it should be replaced. Notes: •...
Table 5. LCD-related symptoms FRU or action, in sequence Symptom or error No beep, power-on indicator on, and a blank LCD during 1. Run LCD Self Test. POST. 2. Replace the system board. • LCD backlight not working. 1. Reseat the LCD connectors. •...
Page 46
E14 Gen 2/R14 Gen 2/E15 Gen 2 Hardware Maintenance Manual...
Open or collapse the notification center. Answer incoming calls on Microsoft Teams. Decline incoming calls on Microsoft Teams. Invoke the function defined by yourself. You can define different functions for the F12 key on Lenovo Vantage. Open the calculator. (for E15 Gen 2 only)
Page 48
Put your computer to sleep mode. (for E15 Gen 2 only) Open the Snipping Tool program. Switch between different keyboard backlight statuses if your computer supports Fn+Spacebar keyboard backlight. Equal the Break key on a conventional external keyboard. Fn+B Equal the ScrLK or Scroll Lock key on a conventional external keyboard. Fn+K Equal the Pause key on a conventional external keyboard.
Base E14 Gen 2 E15 Gen 2 1. Power button/ power button with fingerprint reader 4. Trackpad function ® 2. Numeric keypad (for E15 Gen 2) 5. TrackPoint pointing device 3. Speakers E14 Gen 2/R14 Gen 2/E15 Gen 2 Hardware Maintenance Manual...
Right 1. ThinkPad Integrated Earbuds with Versa Bay * 3. Ethernet connector * 2. USB 2.0 connector 4. Security-lock slot *for selected models Locating FRUs and CRUs This topic introduces the following service parts: • “Major FRUs” on page 48 •...
Page 53
CRUs, you can either install the CRU yourself or you can request that a Service Provider install the CRU according to the warranty service for your product. If you intend on installing the CRU, Lenovo will ship the CRU to you. CRU information and replacement instructions are shipped with your product and are available from Lenovo at any time upon request.
Major FRUs E14 Gen 2/R14 Gen 2/E15 Gen 2 Hardware Maintenance Manual...
Page 55
ThinkPad Integrated Earbuds* Earbud tray front bezel* Earbud tray* Earbud bracket* Earbud USB-C board* Earbud cable* Lenovo factory recovery USB key* Miscellaneous parts kits Power cord ac power adapter * for selected models Notes: • Depending on the computer model, your computer might look different from the illustration above.
• The Lenovo factory recovery USB key is used to restore the Microsoft Windows operating system. It might not come with the computer, and a user might order it from https://pcsupport.lenovo.com/ , though additional shipping and handling fees might apply.
Page 57
Table 7. Major FRUs FRU descriptions Self-service Optional service LCD bezel assembly LCD panel (Touch panel)* LCD panel (Non-touch panel) ThinkShutter Camera/mic combo board eDP cable WLAN atennna Hinges LCD cover assembly * for selected models Note: Depending on the computer model, your computer might look different from the illustration above. Chapter 6 Locations...
• GEO label Connector and cable guide This topic provides information to help Lenovo authorized service technicians identify connectors and cables for replacement purpose. To view each FRU and the exploded illustration of the computer, see “Major FRUs” on page 48 and “LCD FRUs” on page 50.
Page 59
System board connectors and cables Table 9. System board Item Connector (location) Internal cable required Cable connection IR camera connecor eDP cable Connect one end to the IR camera connector and the (internal) other end to this connector. LCD connector LCD cable Connect one end to the LCD panel and the other end (internal)
Page 60
Table 9. System board (continued) Item Internal cable required Connector (location) Cable connection Built-in battery Built-in battery cable The built-in battery cable comes with the cable. connector (internal) Connect the cable to this connector. Memory module slot Insert the memory module into this slot. (internal) Trackpad connector Trackpad cable...
Looking up FRU information Looking up FRU information For detailed FRU information, including part numbers, descriptions, and substitution part numbers, go to: https://support.lenovo.com/partslookup Chapter 6 Locations...
Page 62
E14 Gen 2/R14 Gen 2/E15 Gen 2 Hardware Maintenance Manual...
CRU to you. CRU information and replacement instructions are shipped with your product and are available from Lenovo at any time upon request. You can find a list of CRUs for your product in this Hardware Maintenance Manual. An electronic version of this manual can be found at .
• They are harder to tighten. Do the following when you service this machine: • Keep the screw kit in your tool bag. For the part number of the screw kit, go to https://support.lenovo.com/ partslookup • It is recommended to use new screws.
Maintenance key. Note: Only an authorized Lenovo service technician can access the above Web site. 3. Restart the computer. 4. When the logo is displayed, press Esc. The ThinkPad Config Information Update Utility interface is displayed.
Page 66
E14 Gen 2/R14 Gen 2/E15 Gen 2 Hardware Maintenance Manual...
CRU to you. CRU information and replacement instructions are shipped with your product and are available from Lenovo at any time upon request. You can find a list of CRUs for your product in this Hardware Maintenance Manual. An electronic version of this manual is available for downloading at https:// support.lenovo.com...
Attention: The system board is sensitive to, and can be damaged by, electrostatic discharge (ESD). Before touching it, establish personal grounding by touching a ground point with one hand or by using an electrostatic discharge strap. Before servicing the computer Carefully read this topic before servicing the computer.
Page 69
Applying labels to the bottom cover Note: Depending on the country or region of delivery, the labels might be slightly different from the ones in the following illustration. The new bottom cover FRU is shipped with a kit containing labels of several kinds. Apply those labels when you replace the bottom cover.
Page 70
For aluminum base cover assembly System label GEO label GEO label Genuine Microsoft label SN label Asset tag label Brazil Anatel label SVT label CECP label Argentina Electrical Safety Label ThinkPad E15 Gen 2 Note: If your computer comes with ThinkPad Integrated Earbuds with Versa Bay, the base cover assembly might look different from the illustration.
The only exception to this is if the built-in battery is physically damaged or a customer is reporting a possible safety issue. If the Lenovo Vantage program is not installed on the computer, the customer should download and install the program to diagnose the built-in battery, before getting a non-physically damaged built-in battery replaced.
Torque Step Screw (quantity) Color M2 × 5 mm, small-head, nylon-coated (4) Black 0.181 Nm (1.85 kgf-cm) When installing: Ensure that the connector is attached firmly. 1030 Memory shield and memory module For access, remove this FRU: • “1010 Base cover assembly” on page 62 Removal steps of the memory shield and memory module For AMD models For Intel models...
If your computer is installed with hybrid solid-state drive (with Intel Optane memory), go to https://support. lenovo.com/docs/tg_ssd to know the details on how to replace it. Chapter 8 Removing or replacing a FRU...
Page 74
Removal steps of M.2 2242 solid-state drive Note: Before installing a new M.2 2280 solid-state drive, ensure that the thermal pad is installed properly. Step Screw (quantity) Color Torque Black 0.181 Nm M2 × 3 mm, flat-head, nylon-coated (1) (1.85 kgf-cm) Removal steps of M.2 2280 solid-state drive Note: Before installing a new M.2 2280 solid-state drive, ensure that the thermal pad is installed properly.
1050 Speaker assembly For access, remove this FRU: • “1010 Base cover assembly” on page 62 Removal steps of the speaker assembly E14 Gen 2/R14 Gen 2 E15 Gen 2 When installing: Ensure that the connector is attached firmly and cables are routed properly. 1060 Wireless LAN card For access, remove this FRU: •...
Removal steps of the wireless LAN card Step Screw (quantity) Color Torque M2 × 2.8 mm, flat-head, nylon-coated (1) Silver 0.181 Nm (1.85 kgf-cm) When installing: Plug the gray cable into the connector labeled MAIN on the card; and plug the black cable into the connector labeled AUX on the card.
Page 77
Removal step of the thermal fan assembly For AMD models For Intel models When you install the thermal fan assembly: • Ensure that the connector is attached firmly. • Do not press the top of the fan cover and the fan hub. •...
1080 I/O card and cable Removal steps of the I/O card and cable (ThinkPad E14 Gen 2/R14 Gen 2) For access, remove these FRUs: • “1010 Base cover assembly” on page 62 • “1070 Thermal fan assembly” on page 70 E14 Gen 2/R14 Gen 2/E15 Gen 2 Hardware Maintenance Manual...
Page 79
Step Screw (quantity) Color Torque M2.5 × 6 mm, flat-head, nylon-coated (2) Black 0.294 Nm (3.0 kgf-cm) 0.181 Nm M2× 2.8 mm, flat-head, nylon-coated (1) Silver (1.85 kgf-cm) When installing: Ensure that the screws are installed firmly. Chapter 8 Removing or replacing a FRU...
Page 80
Removal steps of the I/O card and cable (ThinkPad E15 Gen 2) For access, remove these FRUs: • “1010 Base cover assembly” on page 62 • “1070 Thermal fan assembly” on page 70 E14 Gen 2/R14 Gen 2/E15 Gen 2 Hardware Maintenance Manual...
Step Screw (quantity) Color Torque M2.5 × 5 mm, flat-head, nylon-coated (3) Black 0.294 Nm (3.0 kgf-cm) M2× 2.5 mm, flat-head, nylon-coated (1) Silver 0.181 Nm (1.85 kgf-cm) When installing: Ensure that the screws are installed firmly. 1090 Power button/fingerprint reader module and cable Removal steps of the power button/fingerprint reader module and cable For access, remove these FRUs: •...
Removal steps of the coin-cell battery When installing: Ensure that the connector is attached firmly. 1110 Trackpad cable and trackpad For access, remove these FRUs: • “1010 Base cover assembly” on page 62 • “1020 Built-in battery” on page 65 Removal steps of the trackpad cable and trackpad E14 Gen 2/R14 Gen 2/E15 Gen 2 Hardware Maintenance Manual...
Removal steps of the earbud tray 1150 Earbud bracket For access, remove these FRUs: • “1010 Base cover assembly” on page 62 • “1020 Built-in battery” on page 65 • “1120 Earbuds” on page 77 • “1130 Earbud cable and earbud USB-C board” on page 77 •...
Removal steps of the earbud tray front bezel 1170 LCD unit For access, remove these FRUs in order: • “1010 Base cover assembly” on page 62 Removal steps of the LCD unit for ThinkPad E14 Gen 2/R14 Gen 2 Torque Step Screw (quantity) Color...
Page 87
Removal steps of the LCD unit for ThinkPad E15 Gen 2 Chapter 8 Removing or replacing a FRU...
Page 88
Step Screw (quantity) Color Torque M2.5 × 6 mm, flat-head, nylon-coated (5) Black 0.294 Nm (3.0 kgf-cm) E14 Gen 2/R14 Gen 2/E15 Gen 2 Hardware Maintenance Manual...
ThinkPad E14 Gen 2 20T6, 20T7, 20TA and 20TB ThinkPad E15 Gen 2 20T8, 20T9, 20TD and 20TE ThinkPad R14 Gen 2 20TC For access, remove these FRUs in order: • “1010 Base cover assembly” on page 62 • “1030 Memory shield and memory module” on page 66 •...
Page 90
Removal steps of the system board Step Screw (quantity) Color Torque M2.5 × 6 mm, flat-head, nylon-coated (2) Black 0.294 Nm (3.0 kgf-cm) E14 Gen 2/R14 Gen 2 E14 Gen 2/R14 Gen 2/E15 Gen 2 Hardware Maintenance Manual...
Page 91
Step Screw (quantity) Color Torque M2 × L2.8 mm, flat-head, nylon-coated (2) Black 0.181Nm (1.85 kgf-cm) M2 × L5 mm, flat-head, nylon-coated (3) Black 0.181Nm (1.85 kgf-cm) E15 Gen 2 Step Screw (quantity) Color Torque 0.181Nm M2 × L2.8 mm, flat-head, nylon-coated (4) Silver (1.85 kgf-cm) Black...
When you install the system board: Ensure that all the connectors are attached firmly to the system board. Configure the keyboard language in UEFI BIOS: 1. Enter the UEFI BIOS menu. 2. Click Config ➙ Keyboard/Mouse ➙ Keyboard Layout, and then select the keyboard language. 1190 Keyboard assembly For access, remove these FRUs in order: •...
2020 LCD panel ThinkPad E14 Gen 2/R14 Gen 2 Removal steps of the LCD panel For access, remove this FRU in order: • “1170 LCD unit” on page 80 • “2010 LCD bezel assembly” on page 86 1. Grasp the ends of four elastic adhesive tapes with tweezers. Pull out each tape slowly in the direction as shown until four elastic tapes are all released from LCD unit .
Page 94
Installation steps of the LCD panel 1. Peel off the release liners from one side of the new elastic adhesive tapes. Apply the new tapes ordered to the correct locations. Peel off the release liners from the other side of the tapes. Ensure that four tapes are applied correctly as shown.
Page 95
ThinkPad E15 Gen 2 Removal steps of the LCD panel For access, remove this FRU in order: • “1170 LCD unit” on page 80 • “2010 LCD bezel assembly” on page 86 1. Grasp the ends of four elastic adhesive tapes with tweezers. Pull out each tape slowly in the direction as shown until four elastic tapes are all released from LCD unit .
Page 96
Installation steps of the LCD panel 1. Peel off the release liners from one side of the new elastic adhesive tapes. Apply the new tapes ordered to the correct locations. Peel off the release liners from the other side of the tapes. Ensure that four tapes are applied correctly as shown.
2030 Hinge kit Removal steps of the hinge kits (ThinkPad E14 Gen 2/R14 Gen 2) For access, remove these FRUs in order: • “1170 LCD unit” on page 80 • “2010 LCD bezel assembly” on page 86 Step Screw (quantity) Color Torque 0.294 Nm...
Step Screw (quantity) Color Torque 0.294 Nm M2.5 × 2.2 mm, flat-head, nylon-coated (6) Silver (3.0 kgf-cm) When you install the hinge kit: Ensure that all the connectors are attached firmly. 2040 Integrated camera and microphone combo card For access, remove these FRUs in order: •...
Page 99
Removal steps of the camera and microphone combo card (E14 Gen 2/R14 Gen 2) When installing: Ensure that the connector is attached firmly. Chapter 8 Removing or replacing a FRU...
Removal steps of the camera and microphone combo card (E15 Gen 2) When installing: Ensure that the connector is attached firmly. 2050 eDP cable assembly Removal steps of eDP cable assembly (ThinkPad E14 Gen 2/R14 Gen 2) For access, remove these FRUs in order: •...
Removal steps of eDP cable assembly (ThinkPad E15 Gen 2) For access, remove these FRUs in order: • “1170 LCD unit” on page 80 • “2010 LCD bezel assembly” on page 86 • “2020 LCD panel” on page 87 Note: New tap should be ordered for eDP cable replacement. 2060 Wireless LAN antennas assembly For access, remove these FRUs in order: •...
Page 103
Removal steps of the Wireless LAN antennas assembly (E14 Gen 2/R14 Gen 2) Release the wireless LAN antennas assembly from the tabs as shown. Remove the wireless LAN antennas assembly from the LCD rear cover assembly. Antenna locations Wireless LAN auxiliary antenna (black) Wireless LAN main antenna (gray) Attention: When you route the cables, ensure that they are not subject to any tension.
Page 104
Removal steps of the Wireless LAN antennas assembly (E15 Gen 2) Release the wireless LAN antennas assembly from the tabs as shown. Remove the wireless LAN antennas assembly from the LCD rear cover assembly. Antenna locations Wireless LAN auxiliary antenna (black) Wireless LAN main antenna (gray) Attention: When you route the cables, ensure that they are not subject to any tension.
Lenovo representative for information on the products and services currently available in your area. Any reference to a Lenovo product, program, or service is not intended to state or imply that only that Lenovo product, program, or service may be used. Any functionally equivalent product, program, or service that does not infringe any Lenovo intellectual property right may be used instead.
Page 108
Trademarks LENOVO, LENOVO logo, THINKPAD, THINKPAD logo, and TRACKPOINT are trademarks of Lenovo. Intel and Optane are trademarks of Intel Corporation or its subsidiaries in the U.S. and/or other countries. Microsoft and Windows are trademarks of the Microsoft group of companies. The terms HDMI and HDMI High-Definition Multimedia Interface are trademarks or registered trademarks of HDMI Licensing LLC in the United States and other countries.
Page 110
Abbreviation Term random-access memory radio frequency RFID radio-frequency identification ring indicator registered jack SATA Serial Advanced Technology Attachment subscriber identity module supervisor password TFTs thin-film transistors UEFI Unified Extensible Firmware Interface Universal Serial Bus UUID universally unique identifier video graphics array VRAM video random-access memory wide area network...
Page 112
Part Number: SP40Y99640_03 Printed in China (1P) P/N: SP40Y99640_03...