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ThinkPad 10 Hardware Maintenance Manual
Machine Types: 20E3 and 20E4

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  • Page 1 ThinkPad 10 Hardware Maintenance Manual Machine Types: 20E3 and 20E4...
  • Page 2: Table Of Contents

    About this manual... Creating and using a recovery USB drive . . Lenovo factory recovery USB key ..Chapter 1. Safety information ..1 Using passwords.
  • Page 3 ... . . 71 Electronic emission notices..Trademarks ....ThinkPad 10 Hardware Maintenance Manual...
  • Page 4: About This Manual

    This manual contains service and reference information for the following ThinkPad products. Machine Machine type (MT) ThinkPad 10 20E3 and 20E4 Important: • This manual is intended only for trained service technicians who are familiar with ThinkPad products. Use this manual along with the advanced diagnostic tests to troubleshoot problems effectively.
  • Page 5: Chapter 1. Safety Information

    • After service, reinstall all safety shields, guards, labels, and ground wires. Replace any safety device that is worn or defective. • Reinstall other parts that you have removed. Electrical safety Observe the following rules when working on electrical equipment. Important: © Copyright Lenovo...
  • Page 6 This practice ensures correct grounding of the units. • If an electrical accident occurs: – Use caution; do not become a victim yourself. – Switch off power. – Send another person to get medical aid. ThinkPad 10 Hardware Maintenance Manual...
  • Page 7: Safety Inspection Guide

    Safety inspection guide The purpose of this inspection guide is to assist you in identifying potentially unsafe conditions. As each machine was designed and built, required safety items were installed to protect users and service technicians from injury. This guide addresses only those items. You should use good judgment to identify potential safety hazards due to attachment of non-ThinkPad features or options not covered by this inspection guide.
  • Page 8: Grounding Requirements

    The safety notices in this section are provided in the following languages: • English • Arabic • Brazilian Portuguese • French • German • Hebrew • Japanese • Korean • Spanish • Traditional Chinese DANGER DANGER ThinkPad 10 Hardware Maintenance Manual...
  • Page 9 DANGER DANGER DANGER DANGER DANGER Chapter 1 Safety information...
  • Page 10 DANGER ThinkPad 10 Hardware Maintenance Manual...
  • Page 11: Chapter 2. Important Service Information

    Configuration option); then, when service has been completed, verify that those settings remain in effect. Important notice for replacing a system board Attention: When handling a system board: • Do not drop a system board or apply any excessive force to it. © Copyright Lenovo...
  • Page 12: How To Use Error Message

    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 13 To get the general FRU list for a product, do the following: 1. Follow the instructions on the screen to select a product. 2. Tap the Product & Parts tab. 3. Select System Service Parts to view a general FRU list. Chapter 2 Important service information...
  • Page 14: Chapter 3. General Checkout

    • Plastic parts, latches, pins, or connectors that have been cracked or broken by excessive force • Damage caused by liquid spilled into the system • Damage caused by the improper insertion of a personal computer (PC) Card or the installation of an incompatible card © Copyright Lenovo...
  • Page 15: Checkout Guide

    Lenovo Solution Center program installed. Lenovo provides the following quick test programs: • Lenovo Hard Drive Quick Test: Use this program to troubleshoot and resolve internal storage problems. • Lenovo Memory Quick Test: Use this program to troubleshoot and resolve memory module problems.
  • Page 16: Bootable Diagnostic Programs

    To use the bootable diagnostic programs, you can create a bootable diagnostic medium on a Universal Serial Bus (USB) device or CD. To create a bootable diagnostic medium, do the following: 1. Tap Lenovo Bootable Diagnostics or Lenovo UEFI Bootable Diagnostics. 2. Follow the instructions on the Web site to create a bootable diagnostic medium.N To use the diagnostic medium you have created, do the following: 1.
  • Page 17: Power System Checkout

    “Checking the ac power adapter” on page 26 Checking the built-in battery and operational charging This tablet supports only batteries specially designed for this specific system and manufactured by Lenovo or an authorized builder. The system does not support unauthorized batteries or batteries designed for other systems.
  • Page 18 Voltage (V dc) Ground (12V) 3. If the voltage is not correct, replace the ac power adapter. 4. If the voltage is acceptable, replace the system board. Chapter 3 General checkout...
  • Page 19: Chapter 4. Related Service Information

    3. In the navigation panel, tap Update and recovery ➙ Recovery. 4. In the Remove everything and reinstall Windows section, tap Get started. Then tap Next to confirm the operation. 5. Depending on your needs, do one of the following: © Copyright Lenovo...
  • Page 20: Using The Advanced Startup Options

    4. Ensure that you select Copy the recovery partition from the PC to the recovery drive. Then tap Next. 5. Connect a proper USB drive, then tap Next. 6. Tap Create in the Recovery Drive window. The creation of the recovery USB drive starts. ThinkPad 10 Hardware Maintenance Manual...
  • Page 21: Windows Recovery Apps (windows 10)

    7. When the creation of the recovery USB drive finishes, do one of the following: • To keep the recovery partition on your tablet, tap Finish. • To delete the recovery partition on your tablet, tap Delete the recovery partition. Attention: If you delete the recovery partition on your tablet, do keep the recovery USB drive in a safe place.
  • Page 22: Using Advanced Startup Options

    4. In the Recovery Drive window, follow the on-screen instructions to create a recovery USB drive. Using the recovery USB drive If you cannot start the tablet, use the recovery USB drive to recover your tablet. To use a recovery USB drive, do the following: ThinkPad 10 Hardware Maintenance Manual...
  • Page 23: Lenovo Factory Recovery Usb Key

    To use the Lenovo factory recovery USB key, do the following: Note: Ensure that your tablet is connected to ac power during the following process. 1. Turn off the tablet, wait for about five seconds, and then connect the Lenovo factory recovery USB key to your tablet.
  • Page 24: Symptom-to-fru Index

    Lenovo cannot reset your password. You must take your tablet to a Lenovo reseller or a Lenovo marketing representative to have the system board replaced. Proof of purchase is required, and a fee will be charged for parts and service.
  • Page 25: Numeric Error Codes

    Note: For a device not supported by diagnostic codes in the ThinkPad tablet computers, see the manual for that device. Numeric error codes Table 2. Numeric error codes Symptom or error FRU or action, in sequence 0183 Checksum of the Security settings in the EFI Variable Bad CRC of Security Settings in EFI Variable.
  • Page 26 6. If the problem does not recur, reconnect the removed devices one at a time until you find the failing FRU. 7. If the problem remains, replace the following FRUs one at a time (do not replace a non-defective FRU): a. System board b. LCD assembly ThinkPad 10 Hardware Maintenance Manual...
  • Page 27: Chapter 5. Locations

    Front view and side view Microphones Front camera Camera-status indicator Audio connector Volume-control buttons Micro-SD-card reader Micro-SIM-card tray* Micro HDMI™ connector USB 3.0 connector with cover Power connector ® Windows Start control Security-lock slot * Available on some models © Copyright Lenovo...
  • Page 28: Locating Frus And Crus

    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 prod uct. 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.
  • Page 29: Major Frus

    ThinkPad tablets contain the following types of CRUs: – Self-service CRUs: Examples of these types of CRUs include the ac power adapter and power cord. Major FRUs Chapter 5 Locations...
  • Page 30: Miscellaneous Kits And Other Parts

    Wireless-WAN antenna assembly Miscellaneous kits and other parts Table 3. Miscellaneous kits FRU descriptions Self-service CRU Optional-service Label kit Screw kit Table 4. Other parts Descriptions Self-service CRU Optional-service ac power adapter Power cord ThinkPad Pen Pro* ThinkPad 10 Hardware Maintenance Manual...
  • Page 31 Table 4. Other parts (continued) Descriptions Self-service CRU Optional-service ThinkPad 10 Gen 2 Ultrabook™ Keyboard* ThinkPad 10 Quickshot Cover* Pen holder* * Available on some models Chapter 5 Locations...
  • Page 32: Chapter 6. Fru Replacement Notices

    CRU; and (2) you might be charged for the replacement CRU if Lenovo does not receive the defective CRU within thirty (30) days of your receipt of the replacement CRU. See your Lenovo Limited Warranty documentation for full details.
  • Page 33 • Ensure that you use the correct screw. It is recommended to use new screws for replacements. If you have a torque screwdriver, tighten all screws firmly to the torque specified in the screw information table for each step. • Ensure that torque screwdrivers are calibrated correctly following country specifications. ThinkPad 10 Hardware Maintenance Manual...
  • Page 34: Chapter 7. Removing Or Replacing A Fru

    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. You can find a list of CRUs for your product in this Hardware Maintenance Manual. You might be required to return the defective CRU. When return is required:(1) return instructions, a prepaid shipping label, and a container will be included with the replacement CRU;...
  • Page 35: Before Servicing The Tablet

    • Removing the micro SIM card and the micro-SIM-card tray If the tablet you are servicing has a micro Subscriber Identity Module card (micro SIM card) installed, remove the micro SIM card. • Removing the USB 3.0 connector cover ThinkPad 10 Hardware Maintenance Manual...
  • Page 36 • Removing the micro SD card If the tablet you are servicing has a micro SD card installed, remove the micro SD card before servicing. Chapter 7 Removing or replacing a FRU...
  • Page 37: 1010 Back Cover Assembly

    Torque M1.6 × 4 mm, flat-head, nylon-coated (2) Silver 0.098 Nm (1.00 kgf-cm) Attention: Do not insert the hook-releasing tool into the hook hole area of the USB door. Otherwise, the hook will be deformed. ThinkPad 10 Hardware Maintenance Manual...
  • Page 38 Chapter 7 Removing or replacing a FRU...
  • Page 39 • If the tablet you are servicing does not have the smart-card-reader cable, skip step and step • Do not close the connector flip before inserting the cable. • When installing the cable, ensure that the connector is attached firmly. ThinkPad 10 Hardware Maintenance Manual...
  • Page 40 Applying labels to the back cover assembly: The new back cover assembly is shipped with a kit containing labels of several kinds. Apply those labels when you replace the back cover assembly. For the labels that are not shipped with the new back cover assembly, peel them off from the old back cover assembly, and then adhere them to the new one.
  • Page 41: 1020 Smart Card Reader, Smart-card-reader Support Card, And Smart-card-reader Cable

    2. For access, remove the back cover assembly. See “1010 Back cover assembly” on page 48. Removal steps of the smart card reader, smart-card-reader support card, and smart-card-reader cable Step Screw (quantity) Color Torque 0.098 Nm M1.6 × 2.0 mm, flat-head, nylon-coated (4) Silver (1.00 kgf-cm) ThinkPad 10 Hardware Maintenance Manual...
  • Page 42: 1030 Power Button And Volume-control Button

    Notes: • Do not close the connector flips before inserting the cable. • When installing the cable, ensure that the connectors are attached firmly. Step Screw (quantity) Color Torque M1.6 × 2.0 mm, flat-head, nylon-coated (1) Silver 0.098 Nm (1.00 kgf-cm) 1030 Power button and volume-control button Before you start, do the following: 1.
  • Page 43: 1040 Lcd Cable

    1050 Built-in battery Before you start, do the following: 1. Follow the instructions in “Before servicing the tablet” on page 46. 2. For access, remove the back cover assembly. See “1010 Back cover assembly” on page 48. ThinkPad 10 Hardware Maintenance Manual...
  • Page 44: 1060 Rear-facing Camera Module

    Removal steps of the built-in battery Notes: • Do not close the connector flips before inserting the cable. • When installing, ensure that the cables are not twisted or subject to any tension, and ensure that the connectors are attached firmly. Step Screw (quantity) Color...
  • Page 45: 1070 Fingerprint-reader Module

    2. For access, remove the back cover assembly. See “1010 Back cover assembly” on page 48. 3. Remove the connector of the built-in battery from the system board. See step 1 in “1050 Built-in battery” on page 54. ThinkPad 10 Hardware Maintenance Manual...
  • Page 46: 1080 Nfc Card, Nfc Cable, And Nfc Antenna Assembly

    Removal steps of the fingerprint-reader module Notes: • Do not close the connector flip before inserting the cable. • When installing the cable, ensure that the connector is attached firmly. 1080 NFC card, NFC cable, and NFC antenna assembly The near field communication (NFC) card, NFC cable, and NFC antenna assembly are only available on some models.
  • Page 47: 1090 Led Cable

    2. For access, remove the back cover assembly. See “1010 Back cover assembly” on page 48. 3. Remove the connector of the built-in battery from the system board. See step 1 in “1050 Built-in battery” on page 54. ThinkPad 10 Hardware Maintenance Manual...
  • Page 48: 1110 Wireless Wan Card

    Removal steps of the front-facing camera module and front-facing-camera-module cable Notes: • Do not close the connector flips before inserting the cable. • When installing the cable, ensure that the connectors are attached firmly. Torque Step Screw (quantity) Color M1.6 × 3.5 mm, flat-head, nylon-coated (1) Black 0.098 Nm (1.00 kgf-cm)
  • Page 49: 1120 Docking Support Card

    2. For access, remove the back cover assembly. See “1010 Back cover assembly” on page 48. 3. Remove the connector of the built-in battery from the system board. See step 1 in “1050 Built-in battery” on page 54. ThinkPad 10 Hardware Maintenance Manual...
  • Page 50: Micro-hdmi-connector/usb-connector/dc-in-connector Bracket

    Removal steps of the docking support card Step Screw (quantity) Color Torque M1.6 × 4.0 mm, flat-head, nylon-coated (3) Silver 0.098 Nm (1.00 kgf-cm) Notes: • Do not close the connector flip before inserting the cable. • When installing the cable, ensure that the connector is attached firmly. 1130 Micro-HDMI-connector/USB-connector/dc-in-connector bracket Before you start, do the following: 1.
  • Page 51: 1150 Audio-connector Bracket

    2. For access, remove the back cover assembly. See “1010 Back cover assembly” on page 48. Removal steps of the audio-connector bracket Step Screw (quantity) Color Torque M1.6 × 3.5 mm, flat-head, nylon-coated (2) Black 0.098 Nm (1.00 kgf-cm) 1160 Speakers Before you start, do the following: ThinkPad 10 Hardware Maintenance Manual...
  • Page 52: 1180 Wireless-wan Antenna Assembly

    1. Follow the instructions in “Before servicing the tablet” on page 46. 2. For access, remove the following FRUs: • “1010 Back cover assembly” on page 48 • “1120 Docking support card” on page 60 Removal steps of the speakers When installing: Ensure that the connector is attached firmly.
  • Page 53 • Ensure that the cables are not twisted and not subject to any tension. Tension could cause the cables to be damaged by the cable guides, or a wire to be broken. • Ensure that the sponges do not tilt. ThinkPad 10 Hardware Maintenance Manual...
  • Page 54: 1190 System Board

    1190 System board Before you start, do the following: 1. Follow the instructions in “Before servicing the tablet” on page 46. 2. For access, remove the following FRUs: • “1010 Back cover assembly” on page 48 • “1050 Built-in battery” on page 54 •...
  • Page 55: 1200 Lcd Module

    Step Screw (quantity) Color Torque M1.6 × 3.5 mm, flat-head, nylon-coated (1) Black 0.098 Nm (1.00 kgf-cm) M1.6 × 2.0 mm, flat-head, nylon-coated (4) Black 0.098 Nm (1.00 kgf-cm) Note: After the replacement, do the following: • Initialize the settings on the new system board by doing the following: 1.
  • Page 56 • “1020 Smart card reader, smart-card-reader support card, and smart-card-reader cable” on page 52 • “1030 Power button and volume-control button” on page 53 • “1040 LCD cable” on page 54 • “1050 Built-in battery” on page 54 • “1060 Rear-facing camera module” on page 55 •...
  • Page 57 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 58: Electronic Emission Notices

    Electronic emission notices For electronic emission information on Class B digital devices, refer to the corresponding information in the User Guide. Trademarks The following terms are trademarks of Lenovo in the United States, other countries or both: Lenovo ThinkPad logo ThinkPad Microsoft and Windows are trademarks of the Microsoft group of companies.
  • Page 59 HDMI high-definition multimedia interface integrated circuits ICCID integrate circuit card identity International Standardization Organization local area network liquid crystal display media access control machine type machine type and model personal computer Platform Controller Hub POST power-on self-test © Copyright Lenovo...
  • Page 60 TFTs thin-film transistors UEFI Unified Extensible Firmware Interface Universal Serial Bus UUID universally unique identifier video graphics array VRAM video random-access memory ThinkPad 10 Hardware Maintenance Manual Check out the collection of computers & hardware we offer.

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