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Lenovo 20MU Hardware Maintenance Manual
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Lenovo 20MU Hardware Maintenance Manual

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  • Page 1 A485 Hardware Maintenance Manual...
  • Page 2 Appendix A “Notices” on page 97. First Edition (June 2018) © Copyright Lenovo 2018. 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. GS-...

  • Page 3: Table Of Contents

    Power-on password ... 1020 Nano-SIM card ... . . Hard disk password ... © Copyright Lenovo 2018...
  • Page 4 1030 Base cover assembly ..1180 Fingerprint-reader assembly ..1040 Memory module ... . 1190 LCD unit ....1050 Internal storage drive .

  • Page 5: About This Manual

    This manual contains service and reference information for the following ThinkPad products. ThinkPad A485 Machine Type (MT) 20MU and 20MV Use this manual along with the advanced diagnostic tests to troubleshoot problems. Important: This manual is intended only for trained service technicians who are familiar with ThinkPad products.
  • Page 6 A485 Hardware Maintenance Manual...

  • Page 7: Chapter 1. Safety Information

    Do not use this type of mat to protect yourself from electrical shock. © Copyright Lenovo 2018...

  • Page 8: Safety Inspection Guide

    • 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. •...

  • Page 9: Handling Devices That Are Sensitive To Electrostatic Discharge

    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:// support.lenovo.com/partslookup c. Insulation must not be frayed or worn. 4. Check for cracked or bulging batteries.

  • Page 10: Grounding Requirements

    – 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.
  • Page 11 DANGER DANGER DANGER DANGER DANGER Chapter 1 Safety information...
  • Page 12 A485 Hardware Maintenance Manual...
  • Page 13 PERIGO PERIGO Chapter 1 Safety information...
  • Page 14 PERIGO PERIGO PERIGO PERIGO PERIGO A485 Hardware Maintenance Manual...
  • Page 15 PERIGO DANGER DANGER DANGER DANGER Chapter 1 Safety information...
  • Page 16 DANGER DANGER DANGER DANGER VORSICHT A485 Hardware Maintenance Manual...
  • Page 17 VORSICHT VORSICHT VORSICHT VORSICHT Chapter 1 Safety information...
  • Page 18 VORSICHT VORSICHT VORSICHT A485 Hardware Maintenance Manual...
  • Page 19 Chapter 1 Safety information...
  • Page 20 A485 Hardware Maintenance Manual...
  • Page 21 Chapter 1 Safety information...
  • Page 22 A485 Hardware Maintenance Manual...
  • Page 23 Chapter 1 Safety information...
  • Page 24 A485 Hardware Maintenance Manual...
  • Page 25 Chapter 1 Safety information...
  • Page 26 A485 Hardware Maintenance Manual...

  • Page 27: Chapter 2. Important Service Information

    (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/...

  • Page 28: Important Notice For Replacing A System Board

    Dynamic configure-to-order (CTO) model 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 A485 Hardware Maintenance Manual...

  • Page 31: Chapter 3. General Checkout

    Following is a list of some common items that are not covered under warranty and some symptoms that might indicate that the system was subjected to stress beyond normal use. © Copyright Lenovo 2018...

  • Page 32: Checkout Guide

    Note: If you are unable to isolate and repair the problem yourself after running Lenovo Vantage, save and print the log files created by the program. You need the log files when you speak to a Lenovo technical support representative.

  • Page 33: Quick Test Programs

    * 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...

  • Page 34: Power System 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: •...

  • Page 35: Checking The Ac Power Adapter

    To check the USB-C type ac power adapter, do the following: 1. Connect the computer to a power outlet and turn on the computer. 2. Start Lenovo Vantage program, and then click Hardware Settings ➙ Power. The ac power adapter information is displayed.

  • Page 36: Checking The Coin-Cell Battery

    Terminal Voltage (V dc) 1, 2 + 0 to + 12.6 6, 7 Ground (-) 7(-) 6(-) 2(+) 1(+) 3. If the voltage is less than +11.0 V dc, the removable battery has been discharged. If the voltage is still less than +11.0 V dc after recharging, replace the removable battery. 4.

  • Page 37: Chapter 4. Related Service Information

    1. Open the Start menu, and then click Settings ➙ Update & security ➙ Recovery. 2. In the Advanced startup section, click Restart now ➙ Troubleshoot ➙ Advanced options. 3. Select a startup option you want, and then follow the instructions on the screen. © Copyright Lenovo 2018...

  • Page 38: Recovering Your Operating System If Windows 10 Fails To Start

    It is recommended that you create a recovery USB drive as early as possible. If you did not create a recovery USB drive as a precautionary measure, you can contact Lenovo Customer Support Center and purchase one from Lenovo. For a list of the Lenovo Support phone numbers for your country or region, go to: https://pcsupport.lenovo.com/supportphonelist Creating a recovery USB drive To create a recovery USB drive, you need a USB drive with at least 16 GB of storage capacity.

  • Page 39: Passwords

    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.

  • Page 40: How To Remove The Power-On Password

    To put the system back to operational status, the only Lenovo and Lenovo-authorized service solution would be to replace the hard disk drive or solid-state drive with a scheduled fee.

  • Page 41: Power Management

    7. Type the current master hard disk password in the Enter Current Password field. Then leave the Enter New Password field blank, and press Enter twice. 8. Press F10. 9. Press F10 to save changes and exit the ThinkPad Setup program. The user hard disk password and the master hard disk password have been removed.

  • Page 42: Numeric Error Codes

    • “No-beep symptoms” on page 40 • “LCD-related symptoms” on page 40 • “Intermittent problems” on page 41 • “Undetermined problems” on page 41 The symptom-to-FRU index in this section lists symptoms and errors and their possible causes. The most likely cause is listed first, in boldface type.

  • Page 43: Error Messages

    Table 2. Numeric error codes (continued) Symptom or error FRU or action, in sequence 0270 Have the computer serviced. Real Time Clock Error— System Real Time Clock is not functional. 0271 Set the date and time, using ThinkPad Setup. Check Date and Time settings— Neither the date nor the time is set in the computer.

  • Page 44: Beep Errors

    UEFI variable storage using the preceding solution. 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 45 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...

  • Page 46: No-Beep Symptoms

    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: •...

  • Page 47: Intermittent Problems

    Table 5. LCD-related symptoms (continued) FRU or action, in sequence Symptom or error • LCD screen unreadable. 1. See important note for “LCD-related symptoms.” • Characters missing pixels. 2. Reseat all LCD cable. • Screen abnormal. 3. Replace the LCD unit. •...
  • Page 48 A485 Hardware Maintenance Manual...

  • Page 49: Chapter 5. Status Indicators

    This topic provides information about locating and identifying the various status indicators on your computer. Note: Depending on the model, your computer might look different from the following illustrations. Camera status indicator When this indicator is on, the camera is in use. © Copyright Lenovo 2018...
  • Page 50 System status indicators The indicator in the ThinkPad logo on the computer lid and the indicator in the power button show the system status of your computer. • Blinks for three times: The computer is initially connected to power. • On: The computer is on (in normal mode). •...

  • Page 51: Chapter 6. Using The Special Keys

    1. Go to Control Panel, and then change the view of Control Panel from Category to Large icons or Small icons. 2. Click Lenovo - Keyboard Manager and the Keyboard Manager window is displayed. 3. Select the options of your preference.
  • Page 52 • Fn+4: Put the computer into sleep mode. To wake up the computer, press the Fn key or the power button. • Fn+Q: Press Fn+Q to toggle between the high performance mode and the quiet mode of Lenovo smart cooling feature.

  • Page 53: Chapter 7. Locations

    This chapter introduces the locations of the hardware components on your computer. Locating computer controls, connectors, and indicators This topic introduces the locations of the computer controls, connectors, and indicators. Note: * Available on some models. Front view © Copyright Lenovo 2018...

  • Page 54: Left-Side View

    Infrared camera * Microphones Conventional camera * Conventional camera with ThinkShutter (lens cover) * Power button Fingerprint reader * ® TrackPoint buttons Trackpad TrackPoint pointing stick Screen (multi-touch screen available on some models) Left-side view USB-C™ connectors / power connectors Docking-station connector Fan louvers Smart-card slot *...

  • Page 55: 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 56: Major Frus And Crus

    Major FRUs and CRUs Table 6. Major FRUs FRU descriptions Self-service CRU Optional-service CRU LCD unit Trackpad cable Trackpad Keyboard bezel assembly Power button board and cable A485 Hardware Maintenance Manual...
  • Page 57 Built-in battery Speaker assembly Thermal fan assembly System board Coin-cell battery Memory modules Smart card reader and cable (on some models) Keyboard TrackPoint cap Miscellaneous parts kits Power cord ac power adapter Lenovo factory recovery USB key Chapter 7 Locations...

  • Page 58: Lcd Frus

    LCD FRUs Table 7. LCD FRUs FRU descriptions Self-service Optional-service LCD bezel assembly LCD panel LCD cable Camera/LED cable Conventional camera/microphone module (on some models) Infrared camera/microphone module (on some models) Wireless-LAN antenna and wireless-WAN antenna (on some models) LCD rear-cover support brackets LCD hinge assembly LCD rear-cover assembly A485 Hardware Maintenance Manual...

  • Page 59: Miscellaneous Parts

    GEO label assembly Connector and cable guide This section provides information for Lenovo authorized service technicians to help identify connectors and cables for replacement purpose. To view each FRU and the exploded illustration of the computer, see “Major FRUs and CRUs” on page 50 and “LCD FRUs” on page 52.
  • Page 60 System board connectors and cables Table 9. System board Ite- Connector (location) Internal cable required Cable connection Camera/LED connector Camera/LED cable The camera/LED cable comes with the camera/ (internal) microphone combo card. See “Camera/microphone combo card connector and cable” on page 55. Power-button-card Power-button-card cable The power-button-card cable comes with the power-...
  • Page 61 Table 9. System board (continued) Ite- Internal cable required Connector (location) Cable connection Built-in battery Built-in battery cable The built-in battery cable comes with the built-in connector (internal) battery. Connect the cable to this connector. Smart-card-reader Smart-card-reader cable The smart-card-reader cable comes with the smart connector (internal) card reader.

  • Page 62: Looking Up Fru Information

    LCD rear cover. Then, connect the end of the cable to this connector. Looking up FRU information For detailed FRU information, including part numbers, descriptions, and substitution part numbers, go to: https://support.lenovo.com/partslookup A485 Hardware Maintenance Manual...

  • Page 63: Chapter 8. Fru Replacement Notices

    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 .

  • Page 64: Retaining Serial Numbers

    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 65: Retaining The Uuid

    To check what ECAs have been previously applied to the machine, use the ECA Information Read/Write function on the LENOVO ThinkPad Hardware Maintenance Diskette or Maintenance Key. 1. Insert the latest version of LENOVO ThinkPad Hardware Maintenance Diskette or Maintenance Key, and then restart the computer.
  • Page 66 1. Insert the latest version of LENOVO ThinkPad Hardware Maintenance Diskette or Maintenance Key, and then restart the computer. 2. From the main menu, select 6. Set ECA Information. 3. To write the ECA information, select 1. Write ECA/rework number from EEPROM, and follow the instruction;...

  • Page 67: Chapter 9. Removing Or Replacing A Fru

    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 .

  • Page 68: Disabling The Built-In Battery

    Lenovo provides a diagnostic program to do an automatic battery diagnostic test, which can determine if the removable battery is defective. A removable battery FRU should not be replaced unless this diagnostic test shows that the battery is defective.

  • Page 69: 1020 Nano-Sim Card

    1020 Nano-SIM card 1020 Nano-SIM card Note: Before you start the servicing, disable the built-in battery. See “Disabling the built-in battery” on page For access, remove the following FRU: • “1010 Removable battery” on page 62 Removal steps of the nano-SIM card 1030 Base cover assembly Note: Before you start the servicing, disable the built-in battery.
  • Page 70 For access, remove this FRU: • “1010 Removable battery” on page 62 • “1020 Nano-SIM card” on page 63 Removal steps of the base cover assembly 1. Loosen the screws 2. Press the locations on the base cover assembly with your thumbs and pivot the hooks upward at the same time to disengage the hooks from the chassis.
  • Page 71 4. Remove the base cover assembly in the numeric order as shown. Applying labels to the base cover assembly: The following illustration shows the location of each label. Chapter 9 Removing or replacing a FRU...

  • Page 72: 1040 Memory Module

    FCC label GEO label IMEI label S/N label System label Certificate of authenticity label SVT label Asset tag China WWAN/modem label GML label Country label 1040 Memory module Note: Before you start the servicing, disable the built-in battery. See “Disabling the built-in battery” on page For access, remove these FRUs in order: •...
  • Page 73 • “1030 Base cover assembly” on page 63 Attention: • Do not drop the drive or apply any physical shock to it. The drive is sensitive to physical shock. Improper handling can cause damage and permanent loss of data. • Before removing the drive, have the user make a backup copy of all the information on it if possible. •...
  • Page 74 Removal steps of the M.2 solid-state drive A485 Hardware Maintenance Manual...
  • Page 75 Step Screw (quantity) Color Torque M2 × 3 mm, flat-head, nylon-coated (2) Black 0.181 Nm (1.85 kgf-cm) Step Screw (quantity) Color Torque M2 × 3 mm, flat-head, nylon-coated (1) Black 0.181 Nm (1.85 kgf-cm) When installing: Ensure that the hard disk drive or solid-state drive is firmly attached and the tape does not cover the speaker. Chapter 9 Removing or replacing a FRU...

  • Page 76: 1060 Wireless-Wan Card

    1060 Wireless-WAN card Note: Before you start the servicing, disable the built-in battery. See “Disabling the built-in battery” on page For access, remove these FRUs in order: • “1010 Removable battery” on page 62 • “1020 Nano-SIM card” on page 63 •...

  • Page 77: 1080 M.2 Solid-State Drive In The Wireless-Wan-Card Slot

    Removal steps of the Wireless-LAN module Torque Step Screw (quantity) Color M2 × 3 mm, flat-head, nylon-coated (1) Black 0.181 Nm (1.85 kgf-cm) When installing: Plug the gray cable into the connector labeled MAIN or 2 on the card, and plug the black cable into the connector labeled AUX or 1 on the card.

  • Page 78: 1090 Keyboard

    Removal steps of the M.2 solid-state drive in the Wireless-WAN-card slot Step Screw (quantity) Color Torque M2 × 3 mm, flat-head, nylon-coated (1) Black 0.181 Nm (1.85 kgf-cm) When installing: Ensure that the M.2 solid-state drive is securely seated in the wireless-WAN-card slot. 1090 Keyboard Note: Before you start the servicing, disable the built-in battery.
  • Page 79 Turn the computer over and open the display. Push hard in the direction as shown to release the latches from the keyboard bezel. Pivot the keyboard slightly upward as shown by the arrow until you can see the connectors on the bottom side of the keyboard.

  • Page 80: 1100 Coin-Cell Battery

    Put the keyboard on the palm rest and detach the connectors. Then remove the keyboard. 1100 Coin-cell battery Note: Before you start the servicing, disable the built-in battery. See “Disabling the built-in battery” on page For access, remove these FRUs in order: •...

  • Page 81: 1110 Speaker Assembly

    Removal steps of the coin-cell battery When installing: Ensure that the connector of the coin-cell battery is attached firmly. 1110 Speaker assembly Note: Before you start the servicing, disable the built-in battery. See “Disabling the built-in battery” on page For access, remove these FRUs in order: •...

  • Page 82: 1120 Built-In Battery

    Lenovo provides a diagnostic program to do an automatic battery diagnostic test, which can determine if the removable battery is defective. A removable battery FRU should not be replaced unless this diagnostic test shows that the battery is defective.

  • Page 83: 1130 Smart-Card Reader Assembly

    If no diagnostic program is installed on the computer, the customer should download and install the program to diagnose the battery, before getting a non-physically damaged battery replaced. Note that the replacement of a physically damaged battery is not covered by the warranty. Removal steps of the built-in battery DANGER Use only the authorized battery specified for your computer.

  • Page 84: 1140 Thermal Fan Assembly

    • “1020 Nano-SIM card” on page 63 • “1030 Base cover assembly” on page 63 • “1110 Speaker assembly” on page 75 • “1120 Built-in battery” on page 76 Removal steps of the smart-card reader assembly Step Screw (quantity) Color Torque M2 ×...
  • Page 85 Removal steps of the thermal fan assembly Note: Loosen the screws in ascending alphabetical order as illustrated. When installing: • Ensure that the connector of the thermal fan is attached firmly. • Before you attach the thermal fan assembly to the computer, apply thermal grease, at an amount of 0.2 grams, on the part marked as shown in the following illustration.

  • Page 86: 1150 Trackpad And Trackpad Cable

    1150 Trackpad and trackpad cable Note: Before you start the servicing, disable the built-in battery. See “Disabling the built-in battery” on page For access, remove these FRUs in order: • “1010 Removable battery” on page 62 • “1020 Nano-SIM card” on page 63 •...

  • Page 87: 1160 System Board

    1160 System board Important notices for handling the system board When handling the system board, read the following: • The system board has an accelerometer, which can be broken when several thousands of G-forces are applied. Note: Dropping a system board from a height of as little as 6 inches so that it falls flat on a hard bench can subject the accelerometer to as much as 6000 G's of shock.
  • Page 88 Removal steps of the system board Step Screw (quantity) Color Torque M2 × 3.5 mm, flat head, nylon-coated (3) Silver 0.181 Nm (1.85 kgf-cm) Black 0.181 Nm M2 × 4 mm, flat head, nylon-coated (3) (1.85 kgf-cm) A485 Hardware Maintenance Manual...

  • Page 89: 1170 Power-Button Card And Cable

    Step Screw (quantity) Color Torque Black 0.181 Nm M2 × 3 mm, flat head, nylon-coated (6) (1.85 kgf-cm) When installing: Ensure that the connectors are attached firmly. 1170 Power-button card and cable Note: Before you start the servicing, disable the built-in battery. See “Disabling the built-in battery” on page Chapter 9 Removing or replacing a FRU...

  • Page 90: 1180 Fingerprint-Reader Assembly

    For access, remove these FRUs in order: • “1010 Removable battery” on page 62 • “1020 Nano-SIM card” on page 63 • “1030 Base cover assembly” on page 63 • “1040 Memory module” on page 66 • “1060 Wireless-WAN card” on page 70 or “1080 M.2 solid-state drive in the Wireless-WAN-card slot” on page 71 •...

  • Page 91: 1190 Lcd Unit

    • “1120 Built-in battery” on page 76 • “1140 Thermal fan assembly” on page 78 • “1160 System board” on page 81 Removal steps of the fingerprint-reader assembly Step Screw (quantity) Color Torque Black 0.181 Nm M2 × 3 mm, flat-head, nylon-coated (1) (1.85 kgf-cm) 1190 LCD unit Note: Before you start the servicing, disable the built-in battery.
  • Page 92 Removal steps of the LCD unit Step Screw (quantity) Color Torque Black 0.293 Nm M2.5 × 4 mm, flat-head, nylon-coated (4) (3.0 kgf-cm) A485 Hardware Maintenance Manual...

  • Page 93: 1200 Keyboard Bezel Assembly

    When installing: Attention: As 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. • Ensure that the connectors are attached firmly. 1200 Keyboard bezel assembly Note: Before you start the servicing, disable the built-in battery.

  • Page 94: 2010 Lcd Bezel Assembly

    • “1070 Wireless-LAN module” on page 70 • “1090 Keyboard” on page 72 • “1100 Coin-cell battery” on page 74 • “1110 Speaker assembly” on page 75 • “1120 Built-in battery” on page 76 • “1130 Smart-card reader assembly” on page 77 •...

  • Page 95: 2020 Lcd Panel

    Removal steps of the LCD bezel assembly (for models with only conventional camera) When installing: • Install a new LCD bezel assembly whenever the old one is removed. • Ensure that all the latches are attached firmly. 2020 LCD panel Note: Before you start the servicing, disable the built-in battery.

  • Page 96: 2030 Lcd Hinge Assembly

    Step Screw (quantity) Color Torque M2 × 2.5 mm, small-head, nylon-coated (4) Sliver 0.181 Nm (1.85 kgf-cm) When installing: Ensure that the connector of the LCD cable is attached firmly. 2030 LCD hinge assembly Note: Before you start the servicing, disable the built-in battery. See “Disabling the built-in battery” on page For access, remove these FRUs in order: •...
  • Page 97 Step Screw (quantity) Color Torque M2.5 × 2.5 mm, small-head, nylon-coated (4) Sliver 0.293 Nm (3.0 kgf-cm) For models without support brackets Step Screw (quantity) Color Torque M2.5 × 2.5 mm, small-head, nylon-coated (4) Sliver 0.293 Nm (3.0 kgf-cm) Chapter 9 Removing or replacing a FRU...

  • Page 98: 2040 Camera/Microphone Module

    2040 Camera/microphone module Note: Before you start the servicing, disable the built-in battery. See “Disabling the built-in battery” on page For access, remove these FRUs in order: • “1010 Removable battery” on page 62 • “1020 Nano-SIM card” on page 63 •...

  • Page 99: 2050 Camera And Led Cable, And Lcd Cable

    2050 Camera and LED cable, and LCD cable Note: Before you start the servicing, disable the built-in battery. See “Disabling the built-in battery” on page For access, remove these FRUs in order: • “1010 Removable battery” on page 62 • “1020 Nano-SIM card” on page 63 •...

  • Page 100: 2060 Wireless-Lan/Wan Antenna Assembly

    When installing: Attention: As 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. 2060 Wireless-LAN/WAN antenna assembly Note: Before you start the servicing, disable the built-in battery. See “Disabling the built-in battery” on page For access, remove these FRUs in order: •...

  • Page 101: 2070 Lcd Rear-Cover Assembly

    Route the cables as shown in the following illustration. Attention: As 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. Antenna locations Wireless-LAN auxiliary antenna (black) Wireless-WAN auxiliary antenna (blue) (available on some models)
  • Page 102 A485 Hardware Maintenance Manual...

  • Page 103: 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 104: Electronic Emissions Notices

    For electronic emission information on Class B digital devices, refer to the corresponding 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 Lenovo logo ThinkPad...

  • Page 105: Appendix B. Abbreviation Table

    High Definition hard disk drive 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 © Copyright Lenovo 2018...
  • Page 106 Abbreviation Term Platform Controller Hub POST power-on self-test 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...
  • Page 108 Part Number: SP40Q51807 Printed in (1P) P/N: SP40Q51807...
  • Page 109 *1PSP40Q51807*...

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