Lenovo ThinkPad X1 Hardware Maintenance Manual
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Lenovo ThinkPad X1 Hardware Maintenance Manual

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ThinkPad X1 Tablet
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Summary of Contents for Lenovo ThinkPad X1

  • Page 1 ThinkPad X1 Tablet Hardware Maintenance Manual...
  • Page 2 Appendix A “Notices” on page 89. First Edition (February 2016) © Copyright Lenovo 2016. LIMITED AND RESTRICTED RIGHTS NOTICE: If data or software is delivered pursuant to a General Services Administration “GSA” contract, use, reproduction, or disclosure is subject to restrictions set forth in Contract No.

  • Page 3: Table Of Contents

    1020 Back cover assembly ..Lenovo Solution Center ..1030 Coin-cell battery ... .
  • Page 4 1215 LCD module ... . . acronym table ... . . 91 Appendix A. Notices ..89 ThinkPad X1 Tablet Hardware Maintenance Manual...

  • Page 5: About This Manual

    This manual contains service and reference information for the following ThinkPad products. Machine Machine type (MT) ThinkPad X1 Tablet 20GG and 20GH 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 6 ThinkPad X1 Tablet Hardware Maintenance Manual...

  • Page 7: 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. © Copyright Lenovo 2016...
  • Page 8 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 X1 Tablet Hardware Maintenance Manual...

  • Page 9: 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 10: 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 ThinkPad X1 Tablet Hardware Maintenance Manual...
  • Page 11 DANGER DANGER DANGER DANGER DANGER DANGER Chapter 1 Safety information...
  • Page 12 DANGER ThinkPad X1 Tablet Hardware Maintenance Manual...
  • Page 13 PERIGO PERIGO Chapter 1 Safety information...
  • Page 14 PERIGO PERIGO PERIGO PERIGO PERIGO PERIGO ThinkPad X1 Tablet Hardware Maintenance Manual...
  • Page 15 DANGER DANGER DANGER DANGER DANGER Chapter 1 Safety information...
  • Page 16 DANGER DANGER DANGER VORSICHT VORSICHT ThinkPad X1 Tablet Hardware Maintenance Manual...
  • Page 17 VORSICHT VORSICHT VORSICHT VORSICHT Chapter 1 Safety information...
  • Page 18 VORSICHT VORSICHT ThinkPad X1 Tablet Hardware Maintenance Manual...
  • Page 19 Chapter 1 Safety information...
  • Page 20 ThinkPad X1 Tablet Hardware Maintenance Manual...
  • Page 21 Chapter 1 Safety information...
  • Page 22 ThinkPad X1 Tablet Hardware Maintenance Manual...
  • Page 23 Chapter 1 Safety information...
  • Page 24 ThinkPad X1 Tablet Hardware Maintenance Manual...

  • Page 25: Chapter 2. Important Service Information

    Support Web site at http://www.lenovo.com/support. The customers can view the software fixes, download the drivers, and see the instructions for installing the drivers. For additional assistance, customers might call the Lenovo Customer Support Center. Telephone numbers for the Lenovo Support Center are available at: http://www.lenovo.com/support/phone...

  • Page 26: 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 27 To get the general FRU list for a product, do the following: 1. Go to http://support.lenovo.com. 2. Follow the instructions on the screen to select a product. 3. Tap the Product & Parts tab. 4. Select System Service Parts to view a general FRU list.
  • Page 28 ThinkPad X1 Tablet Hardware Maintenance Manual...

  • Page 29: Chapter 3. General Checkout

    This chapter introduces following information: • “What to do first” on page 23 • “Checkout guide” on page 24 – “Lenovo Solution Center” on page 24 – “Quick test programs” on page 24 – “UEFI diagnostic program” on page 25 –...

  • Page 30: Checkout Guide

    2. Verify the symptoms. Try to re-create the failure by running the diagnostic test or by repeating the operation. Lenovo Solution Center The Lenovo Solution Center program enables you to troubleshoot and resolve tablet problems. It combines diagnostic tests, system information collection, security status, and support information, along with hints and tips for maximum system performance.

  • Page 31: Uefi Diagnostic Program

    If the tablet 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 you to test tablet memory and internal storage devices, view system information, and check and recover the internal storage devices.

  • Page 32: Power System Checkout

    “Checking the ac power adapter” on page 27 Checking the built-in battery 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 33: Checking The Operational Charging

    Checking the ac power adapter This tablet supports only the Lenovo USB-C 45W AC Adapter. When the adapter is connected to the tablet, the output voltage at the adapter plug rises from 0 V (when not connected) to 5 V. Then the power delivery communication starts.
  • Page 34 ThinkPad X1 Tablet Hardware Maintenance Manual...

  • Page 35: Chapter 4. Related Service Information

    Chapter 4. Related service information This chapter presents the following information: • “Windows recovery apps” on page 29 • “Lenovo factory recovery USB key” on page 30 • “Using passwords” on page 31 • “Symptom-to-FRU index” on page 31 Windows recovery apps The Windows recovery apps enable you to reset your tablet or use advanced startup options.

  • Page 36: Recovering Your Operating System If The Windows 10 Operating System Fails To Start

    5. Select a corresponding recovery solution according to your situation. Then follow the instructions on the screen to complete the process. Lenovo factory recovery USB key Lenovo factory recovery USB key enables you to reset your tablet to the factory default settings. ThinkPad X1 Tablet Hardware Maintenance Manual...

  • Page 37: Using Passwords

    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 38: Error Codes

    System Real Time Clock is not functional. Have the tablet Real Time Clock Error. serviced. 0271 Neither the date nor the time is set in the tablet. Set the Check Date and Time settings. date and time, using the ThinkPad Tablet Setup program. ThinkPad X1 Tablet Hardware Maintenance Manual...

  • Page 39: Intermittent Problems

    UEFI BIOS and by the operating system or applications. This error occurs when the operating system If this error happens at a service center, Lenovo authorized or applications store large amounts of data in the variable service personnel will clean up the non-volatile system storage.
  • Page 40 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 X1 Tablet Hardware Maintenance Manual...

  • Page 41: Chapter 5. Locations

    Ambient light sensor Near field communication (NFC) touchpoint or infrared camera ® Fingerprint reader Mini DisplayPort connector Speaker USB 3.0 connector USB-C connector Base Module Security-lock slot Speaker Volume-control buttons Audio connector Available on some models © Copyright Lenovo 2016...
  • Page 42 Rear view System-status indicator Rear-camera flash light Rear camera Nano-SIM-card slot Kickstand release knob Kickstand microSD card slot Emergency-reset hole Available on some models ThinkPad X1 Tablet Hardware Maintenance Manual...

  • Page 43: 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 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.

  • Page 44: Major Frus

    Major FRUs ThinkPad X1 Tablet Hardware Maintenance Manual...
  • Page 45 USB-connector bracket Thermal module Built-in battery Coin-cell battery Think LED light Back cover assembly Base Module Lenovo factory recovery USB key ac power adapter SIM card cover Touch controller card cable POGO-card cable LCD cable POGO card M.2 solid-state-drive mylar M.2 solid-state drive...

  • Page 46: Miscellaneous Kits And Other Parts

    Note: The Lenovo factory recovery USB key is used to restore the Microsoft Windows operating system. They might not come with the computer, and a user might order them from http://www.lenovo.com/lenovorecovery, though additional shipping and handling fees might apply. Miscellaneous kits and other parts Table 3.
  • Page 47 System board connectors and cables Table 5. System board connector and cable guide Item Internal cable required Connector (location) Cable connection Think LED light connector (internal) Think LED light cable The Think LED light comes with a cable. Connect the cable to this connector.
  • Page 48 (VGA) monitor or other VGA-compatible video device, or an ac power adapter to this connector by using a USB-C dongle or docking device. Or, connect an ac power adapter directly to this connector. ThinkPad X1 Tablet Hardware Maintenance Manual...
  • Page 49 Audio card connectors and cables Table 6. Audio card connector and cable guide Item Internal cable required Connector (location) Cable connection Audio card connector (internal) Audio-card cable Connect one end to the audio card connector on the system board and the other end to this connector.
  • Page 50 Connect one end to the POGO card connector on the system board and the other end to this connector. Cartridege docking connector Connect a pro cartridge, pico (internal) projector, 3D camera, or base cartridge to this connector. ThinkPad X1 Tablet Hardware Maintenance Manual...
  • Page 51 Touch controller card connectors and cables Table 11. Touch controller card connector and cable guide Item Connector (location) Internal cable required Cable connection Touch controller card connector Touch controller card cable Connect one end to the touch (internal) controller card connector on the system board and the other end to this connector.

  • Page 52: Looking Up Fru Information

    Connect one end of the (internal) wireless-WAN blue antenna to the A-cover and the other end to this connector. Looking up FRU information For detailed FRU information, including part numbers, descriptions, and substitution part numbers, go to http://www.lenovo.com/serviceparts-lookup. ThinkPad X1 Tablet Hardware Maintenance Manual...

  • Page 53: Chapter 6. Fru Replacement Notices

    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. An electronic version of this manual can be found at http://www.lenovo.com/support.

  • Page 54: Retaining Serial Numbers

    • Ensure that torque screwdrivers are calibrated correctly following country specifications. Retaining serial numbers Instructions for retaining serial numbers, MTM, UUID, or asset ID can be found from the Lenovo Support Web site at: http://www.lenovo.com/support ThinkPad X1 Tablet Hardware Maintenance Manual...

  • Page 55: 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. An electronic version of this manual is available for downloading at http://www.lenovo.com/support.

  • Page 56: Before Servicing The Tablet

    Removing the SIM card, SD card, and Base Module Remove the following items before you service the tablet: • SIM card (on some models) • SD card (on some models) • Base Module Removal steps of the SIM card ThinkPad X1 Tablet Hardware Maintenance Manual...
  • Page 57 Removal steps of the SD card Chapter 7 Removing or replacing a FRU...

  • Page 58: 1010 Sim Card Cover

    Removal steps of the Base Module 1010 SIM card cover Removal steps of the SIM card cover The SIM card cover is only available on some models. ThinkPad X1 Tablet Hardware Maintenance Manual...

  • Page 59: 1020 Back Cover Assembly

    1020 Back cover assembly Before you replace the back cover assembly, do the following: 1. Disable the built-in battery. See “Disabling the built-in battery” on page 50. 2. Remove the SIM card, SD card, and Base Module. See “Removing the SIM card, SD card, and Base Module”...
  • Page 60 Torque Step Screw (quantity) Color M2 × L2.5 mm, flat-head, nylon-coated (3) Black 0.181 Nm (1.85 kgf-cm) ThinkPad X1 Tablet Hardware Maintenance Manual...
  • Page 61 Chapter 7 Removing or replacing a FRU...
  • Page 62 ThinkPad X1 Tablet Hardware Maintenance Manual...
  • Page 63 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 64: 1030 Coin-Cell Battery

    3. Remove the back cover assembly. See “1020 Back cover assembly” on page 53. 4. Disconnect the cable of the built-in battery. Removal steps of the coin-cell battery DANGER Use only the authorized battery specified for your tablet. Any other battery could ignite or explode. ThinkPad X1 Tablet Hardware Maintenance Manual...

  • Page 65: 1040 Think Led Light

    When installing: Ensure that the connector is attached firmly. After you install the coin-cell battery, reset the system date and time in the ThinkPad Tablet Setup program. 1040 Think LED light Before you replace the Think LED light, do the following: 1.

  • Page 66: 1050 Nfc Card, Nfc-Card Cable, And Nfc Antenna Assembly

    5. Remove the Think LED light. See “1040 Think LED light” on page 59. Removal steps of the NFC card, NFC-card cable, and NFC antenna assembly The NFC card, NFC-card cable, and NFC antenna assembly are only available on some models. ThinkPad X1 Tablet Hardware Maintenance Manual...

  • Page 67: 1060 Wireless-Wan Card

    Note: Do not close the connector flips before connecting the cables. When connecting the cables, ensure that the connectors are attached firmly. 1060 Wireless-WAN card Before you replace the wireless-WAN card, do the following: 1. Disable the built-in battery. See “Disabling the built-in battery” on page 50. 2.
  • Page 68 Use the antenna-RF-connector removal tool to disconnect the cables or use your fingers to pick up the cables slightly. Step Screw (quantity) Color Torque M2 × L2 mm, flat-head, nylon-coated (1) Silver 0.181 Nm (1.85 kgf-cm) ThinkPad X1 Tablet Hardware Maintenance Manual...

  • Page 69: 1070 M.2 Solid-State Drive And Solid-State-Drive Mylar

    When installing: Plug the red cable into the main connector, and the blue cable into the auxiliary connector on the card. Ensure that the connectors are attached firmly. 1070 M.2 solid-state drive and solid-state-drive mylar Before you replace the M.2 solid-state drive or solid-state-drive mylar, do the following: 1.
  • Page 70 Removal steps of the M.2 solid-state drive and solid-state-drive mylar Step Screw (quantity) Color Torque M2 × L2 mm, flat-head, nylon-coated (1) Silver 0.181 Nm (1.85 kgf-cm) ThinkPad X1 Tablet Hardware Maintenance Manual...

  • Page 71: 1080 Touch Controller Card Cable

    1080 Touch controller card cable Before you replace the touch controller card cable, do the following: 1. Disable the built-in battery. See “Disabling the built-in battery” on page 50. 2. Remove the SIM card, SD card, and Base Module. See “Removing the SIM card, SD card, and Base Module”...

  • Page 72: 1090 Infrared Camera Card And Infrared Camera Cable

    2. Remove the SIM card, SD card, and Base Module. See “Removing the SIM card, SD card, and Base Module” on page 50. 3. Remove the back cover assembly. See “1020 Back cover assembly” on page 53. 4. Disconnect the cable of the built-in battery. ThinkPad X1 Tablet Hardware Maintenance Manual...
  • Page 73 Removal steps of the infrared camera card and infrared camera cable The infrared camera card and infrared camera cable are only available on some models. When installing: Ensure that the connectors are attached firmly. Chapter 7 Removing or replacing a FRU...

  • Page 74: 1110 Speaker Assembly

    2. Remove the SIM card, SD card, and Base Module. See “Removing the SIM card, SD card, and Base Module” on page 50. 3. Remove the back cover assembly. See “1020 Back cover assembly” on page 53. 4. Disconnect the cable of the built-in battery. ThinkPad X1 Tablet Hardware Maintenance Manual...

  • Page 75: 1120 Mini Displayport Bracket

    Removal steps of the speaker assembly When installing: Ensure that the connectors are attached firmly. Step Screw (quantity) Color Torque M2 × L4 mm, flat-head, nylon-coated (2) Black 0.181 Nm (1.85 kgf-cm) 1120 Mini DisplayPort bracket Before you replace the mini DisplayPort bracket, do the following: 1.

  • Page 76: 1130 Usb-Connector Bracket

    2. Remove the SIM card, SD card, and Base Module. See “Removing the SIM card, SD card, and Base Module” on page 50. 3. Remove the back cover assembly. See “1020 Back cover assembly” on page 53. 4. Disconnect the cable of the built-in battery. ThinkPad X1 Tablet Hardware Maintenance Manual...

  • Page 77: 1140 Pogo Card And Pogo-Card Cable

    Removal steps of the USB-connector bracket Step Screw (quantity) Color Torque Black 0.181 Nm M2 × L4 mm, flat-head, nylon-coated (3) (1.85 kgf-cm) 1140 POGO card and POGO-card cable Before you replace the POGO card or POGO-card cable, do the following: 1.
  • Page 78 Removal steps of the POGO card and POGO-card cable When installing: Ensure that the connectors are attached firmly. ThinkPad X1 Tablet Hardware Maintenance Manual...

  • Page 79: 1150 Lcd Cable

    Step Screw (quantity) Color Torque Black 0.181 Nm M2 × L2.5 mm, flat-head, nylon-coated (3) (1.85 kgf-cm) Note: Do not close the connector flip before connecting the cable. When connecting the cable, ensure that the connector is attached firmly. 1150 LCD cable Before you replace the LCD cable, do the following: 1.

  • Page 80: 1160 Built-In Battery

    “1030 Coin-cell battery” on page 58 • “1040 Think LED light” on page 59 Removal steps of the built-in battery DANGER Use only the authorized battery specified for your tablet. Any other battery could ignite or explode. ThinkPad X1 Tablet Hardware Maintenance Manual...
  • Page 81 Note: Do not close the connector flips before connecting the cables. When connecting the cables, ensure that the connectors are attached firmly. Torque Step Screw (quantity) Color M2 × L4 mm, flat-head, nylon-coated (1) Black 0.181 Nm (1.85 kgf-cm) M2 × L2 mm, thin big head, nylon-coated (1) Silver 0.181 Nm (1.85 kgf-cm)

  • Page 82: Camera Module, And Rear-Facing Camera Module

    2. Remove the SIM card, SD card, and Base Module. See “Removing the SIM card, SD card, and Base Module” on page 50. 3. Remove the back cover assembly. See “1020 Back cover assembly” on page 53. 4. Remove the built-in battery. See “1160 Built-in battery” on page 74. ThinkPad X1 Tablet Hardware Maintenance Manual...
  • Page 83 Removal steps of the camera cable, camera card, front-facing camera module, and rear-facing camera module When installing: Ensure that the connectors are attached firmly. Step Screw (quantity) Color Torque M2 × L2.5 mm, flat-head, nylon-coated (1) Black 0.181 Nm (1.85 kgf-cm) Chapter 7 Removing or replacing a FRU...

  • Page 84: 1180 Audio Card And Audio-Card Cable

    M2 × L2.5 mm, flat-head, nylon-coated (2) (1.85 kgf-cm) 1190 Thermal module Before you replace the thermal module, do the following: 1. Disable the built-in battery. See “Disabling the built-in battery” on page 50. ThinkPad X1 Tablet Hardware Maintenance Manual...
  • Page 85 2. Remove the SIM card, SD card, and Base Module. See “Removing the SIM card, SD card, and Base Module” on page 50. 3. Remove the back cover assembly. See “1020 Back cover assembly” on page 53 4. Remove the built-in battery. See “1160 Built-in battery” on page 74. Removal steps of the thermal module Loosen the screws in ascending alphabetical order as shown in the following illustration.

  • Page 86: 1210 System Board

    • At every point in the process, be sure not to drop or stack the system board. • If you put a system board down, be sure to put it only on a padded surface such as an ESD mat or a corrugated conductive material. ThinkPad X1 Tablet Hardware Maintenance Manual...
  • Page 87 Note: Do not close the connector flips before connecting the cables. When connecting the cables, ensure that the connectors are attached firmly. Step Screw (quantity) Color Torque M2 x L2 mm, thin Big-head, nylon-coated (1) Silver 0.181 Nm (1.85 kgf-cm) Chapter 7 Removing or replacing a FRU...

  • Page 88: 1211 Inner Frame Left And Inner Frame Right

    • Reset the NVRAM (Non-Volatile Random Access Memory). To download the tool and the instruction, do the following: 1. Go to https://support.lenovo.com/documents/HT104297 and then follow the instructions on the screen. Note: Service account and password are required for downloading the tool and the instruction.

  • Page 89: 1212 Fingerprint-Reader Module

    Step Screw (quantity) Color Torque M2 × L2.5 mm, flat-head, nylon-coated (2) Black 0.181 Nm (1.85 kgf-cm) 1212 Fingerprint-reader module Before you replace the fingerprint-reader module, do the following: 1. Disable the built-in battery. See “Disabling the built-in battery” on page 50. 2.
  • Page 90 Attention: When installing the antenna assembly, route the cables as shown in the following illustration. Ensure that the cables are not twisted or subject to any tension. Tension could cause the cables to be damaged by cable guides. ThinkPad X1 Tablet Hardware Maintenance Manual...

  • Page 91: 1214 Wigig Antenna Assembly And Thermal Spread Sheet For Wigig Antenna Assembly

    Wireless-WAN antenna (Main) Wireless-LAN antenna (Main) Wireless-WAN antenna (Auxiliary) Wireless-LAN antenna (Auxiliary) Available on some models 1214 WiGig antenna assembly and thermal spread sheet for WiGig antenna assembly Before you replace the WiGig antenna assembly and thermal spread sheet for WiGig antenna assembly, do the following: 1.

  • Page 92: 1215 Lcd Module

    “1150 LCD cable” on page 73 • “1160 Built-in battery” on page 74 • “1170 Camera cable, camera card, front-facing camera module, and rear-facing camera module” on page 76 • “1180 Audio card and audio-card cable” on page 78 ThinkPad X1 Tablet Hardware Maintenance Manual...
  • Page 93 • “1190 Thermal module” on page 78 • “1210 System board” on page 80 • “1211 Inner frame left and inner frame right” on page 82 • “1212 Fingerprint-reader module” on page 83 • “1213 Antenna kit” on page 83 •...
  • Page 94 ThinkPad X1 Tablet Hardware Maintenance Manual...

  • Page 95: Appendix A. Notices

    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 96: 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 Lenovo logo ThinkPad ThinkPad logo Microsoft and Windows are trademarks of the Microsoft group of companies.

  • Page 97: Appendix B. Abbreviation And Acronym Table

    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 random-access memory © Copyright Lenovo 2016...
  • Page 98 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 ThinkPad X1 Tablet Hardware Maintenance Manual...
  • Page 100 Part Number: SP40G76080 (1P) P/N: SP40G76080 *1PSP40G76080*...

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