Lenovo ThinkBook 14s Yoga Hardware Maintenance Manual
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Lenovo ThinkBook 14s Yoga Hardware Maintenance Manual

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Summary of Contents for Lenovo ThinkBook 14s Yoga

  • Page 1 Hardware Maintenance Manual Lenovo ThinkBook 14s Yoga...
  • Page 2 First Edition (October 2020) © Copyright Lenovo 2020.

  • Page 3: Table Of Contents

    Removal procedure ... . . Trademarks ....lv Remove the Lenovo Smart Pen ..© Copyright Lenovo 2020...
  • Page 4 Hardware Maintenance Manual...

  • Page 5: About This Manual

    Important: • This manual is intended only for trained service technicians who are familiar with Lenovo products. • Before servicing a Lenovo product, be sure to read all the information under Chapter 1 “Safety information” on page 1. © Copyright Lenovo 2020...
  • Page 6 Hardware Maintenance Manual...

  • Page 7: Chapter 1. Safety Information

    • Do not work alone under hazardous conditions or near equipment that has hazardous voltages. • Disconnect all power before: – Performing a mechanical inspection – Working near power supplies © Copyright Lenovo 2020...

  • Page 8: Safety Inspection Guide

    This guide addresses only those items. You should use good judgment to identify potential safety hazards due to attachment of non-Lenovo features or options not covered by this inspection guide.

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

    4. Check for cracked or bulging batteries. 5. Remove the cover. 6. Check for any obvious non-Lenovo alterations. Use good judgment as to the safety of any non-Lenovo alterations. 7. Check inside the unit for any obvious unsafe conditions, such as metal filings, contamination, water or other liquids, or signs of fire or smoke damage.

  • Page 10: Grounding Requirements

    Grounding requirements Electrical grounding of the computer is required for operator safety and correct system function. Proper grounding of the electrical outlet can be verified by a certified electrician. Safety notices (multilingual translations) The safety notices in this section are provided in the following languages: •...
  • Page 11 DANGER DANGER DANGER DANGER DANGER Chapter 1 Safety information...
  • Page 12 Hardware Maintenance Manual...
  • Page 13 PERIGO PERIGO PERIGO Chapter 1 Safety information...
  • Page 14 PERIGO PERIGO PERIGO PERIGO PERIGO Hardware Maintenance Manual...
  • Page 15 DANGER DANGER DANGER DANGER Chapter 1 Safety information...
  • Page 16 DANGER DANGER DANGER DANGER VORSICHT Hardware Maintenance Manual...
  • Page 17 VORSICHT VORSICHT VORSICHT VORSICHT Chapter 1 Safety information...
  • Page 18 VORSICHT VORSICHT VORSICHT Hardware Maintenance Manual...
  • Page 19 Chapter 1 Safety information...
  • Page 20 Hardware Maintenance Manual...
  • Page 21 Chapter 1 Safety information...
  • Page 22 Hardware Maintenance Manual...
  • Page 23 Chapter 1 Safety information...
  • Page 24 Hardware Maintenance Manual...
  • Page 25 Chapter 1 Safety information...
  • Page 26 Hardware Maintenance Manual...

  • Page 27: Chapter 2. General Checkout

    • Scratched (cosmetic) parts • Distortion, deformation, or discoloration of the cosmetic parts • Plastic parts, latches, pins, or connectors that have been cracked or broken by excessive force • Damage caused by liquid spilled into the system © Copyright Lenovo 2020...

  • Page 28: Cru List

    • Check for obvious damage to a hard disk drive. If the spindle of a hard disk drive becomes noisy, the hard disk drive might have been dropped or subject to excessive force. CRU list Table 1. Model: ThinkBook 14s Yoga ITL (MT: 20WE) Type ac power adapter...

  • Page 29: Chapter 3. Identifying Frus (Crus)

    Chapter 3. Identifying FRUs (CRUs) Locate FRUs and CRUs The exploded illustrations help Lenovo service technicians identify FRUs or CRUs that they may need to replace when servicing a customer’s computer. Figure 1. ThinkBook 14s Yoga ITL exploded view Table 2. FRU (CRU) categories...
  • Page 30 Fingerprint board I/O board with cable I/O bracket (right) CMOS battery Lenovo Smart Pen charger cable Lenovo Smart Pen holder Lenovo Smart Pen Solid-state drive (SSD) bracket Note: The SSD bracket is used to lock the screw for the 2242 SSD.
  • Page 31 Figure 2. ThinkBook 14s Yoga ITL LCD unit - exploded view Table 3. FRU categories for the LCD unit FRU (CRU) category Microphone rubbers Camera privacy shutter Camera LCD module Strip cover Removable tape Chapter 3 Identifying FRUs (CRUs)
  • Page 32 Table 3. FRU categories for the LCD unit (continued) LCD cover Rubber hinges Hinges EDP cable Sensor board with cable Hardware Maintenance Manual...

  • Page 33: Chapter 4. Removing A Fru Or Cru

    Chapter 4. Removing a FRU or CRU Service tools The following table lists tools for servicing Lenovo computers. Tools with a cross mark are needed for serving the product models as described by this publication. Prepare them before you service the product.

  • Page 34: Removal Procedure

    Remove the Lenovo Smart Pen Step 1. Remove the Lenovo Smart Pen. Figure 3. Remove the Lenovo Smart Pen Go to to look up the Lenovo part number of the following replacement https://support.lenovo.com/partslookup part: Lenovo Smart Pen Remove the lower case Make sure the computer has been shut down before servicing the computer and the following FRUs (or CRUs) have been removed.

  • Page 35: Remove The Battery Pack

    Step 3. Pry up the latches and then remove the lower case. Figure 5. Pry up the latches and then remove the lower case Go to to look up the Lenovo part number of the following replacement https://support.lenovo.com/partslookup part: Lower case Remove the battery pack Make sure the following FRUs (or CRUs) have been removed.

  • Page 36: Remove The Solid-State Drive (Ssd)

    Screw specifications Number of screws M2 x L4.0 Go to https://support.lenovo.com/partslookup to look up the Lenovo part number of the following replacement part: Battery pack Remove the solid-state drive (SSD) Make sure the following FRUs (or CRUs) have been removed.
  • Page 37 Figure 9. Remove one screw and separate the SSD from the SSD bracket Screw specifications Number of screws M2.0 x L2.0 Go to to look up the Lenovo part numbers of the following https://support.lenovo.com/partslookup replacement parts: SSD bracket Chapter 4...

  • Page 38: Remove The Wi-Fi Card

    Remove the Wi-Fi card Make sure the following FRUs (or CRUs) have been removed. “Remove the Lenovo Smart Pen” on page 28 “Remove the lower case” on page 28 Step 1. Disconnect the battery pack cable from the system board.

  • Page 39: Remove The Heat Sink

    Screw specifications Number of screws M2 x L2.0 Go to https://support.lenovo.com/partslookup to look up the Lenovo part number of the following replacement part: Heat sink Remove the fan Make sure the following FRUs (or CRUs) have been removed. “Remove the Lenovo Smart Pen” on page 28 “Remove the lower case”...

  • Page 40: Remove The Memory Module

    Number of screws M2 x L4.0 Go to https://support.lenovo.com/partslookup to look up the Lenovo part number of the following replacement part: Remove the memory module Make sure the following FRUs (CRUs) have been removed. “Remove the Lenovo Smart Pen” on page 28 “Remove the lower case”...

  • Page 41: Remove The I/O Bracket (Left)

    Figure 15. Remove the memory module Go to to look up the Lenovo part numbers of the following https://support.lenovo.com/partslookup replacement parts: Memory module Memory module shielding Remove the I/O bracket (left) Make sure the following FRUs (or CRUs) has been removed.

  • Page 42: Remove The I/O Board Bracket (Right)

    Figure 17. Remove four screws and then remove the left I/O bracket Screw specifications Number of screws M2 x L4.0 Go to to look up the Lenovo part number of the following replacement https://support.lenovo.com/partslookup part: I/O bracket (left) Remove the I/O board bracket (right) Make sure the following FRUs (or CRUs) have been removed.

  • Page 43: Remove The Cmos Battery

    Screw specifications Number of screws M2 x L4.0 Go to https://support.lenovo.com/partslookup to look up the Lenovo part number of the following replacement part: I/O bracket (right) Remove the CMOS battery Make sure the following FRUs (or CRUs) has been removed.

  • Page 44: Remove The Lenovo Smart Pen Holder

    Attention: Use your fingernails to pull the connector to unplug it. Do not pull the cable. Step 2. Remove two screws and then remove the Lenovo Smart Pen holder. Figure 21. Remove two screws and then remove the Lenovo Smart Pen holder Screw specifications Number of screws M1.6 x L3.0...

  • Page 45: Remove The I/O Board With Cable

    Figure 22. Disconnect the pen holder cable and the fingerprint board cable from the I/O board, and disconnect the I/O board cable from the system board. Then, remove the I/O board with cable. Go to https://support.lenovo.com/partslookup to look up the Lenovo part number of the following replacement part: I/O board with cable Remove the speakers Make sure the following FRUs (CRUs) have been removed.

  • Page 46: Remove The Lenovo Smart Pen Charger Cable

    “Remove the I/O board with cable” on page 39 Step 1. Peel off the tape and then remove the Lenovo Smart Pen charger cable. Figure 24. Peel off the tape and then remove the Lenovo Smart Pen charger cable Hardware Maintenance Manual...

  • Page 47: Remove The Fingerprint Board

    Go to to look up the Lenovo part number of the following replacement https://support.lenovo.com/partslookup part: Lenovo Smart Pen charger cable Remove the fingerprint board Make sure the following FRUs (CRUs) have been removed. “Remove the Lenovo Smart Pen” on page 28 “Remove the lower case”...
  • Page 48 “Remove the heat sink” on page 33 “Remove the fan” on page 33 “Remove the memory module” on page 34 “Remove the I/O bracket (left)” on page 35 Step 1. Peel off the tapes. Figure 26. Peel off the tapes Step 2.

  • Page 49: Remove The Lcd Unit

    Figure 28. Remove one screw and then remove the system board Screw specifications Number of screws M1.98 x L3.0 Go to to look up the Lenovo part number of the following replacement https://support.lenovo.com/partslookup part: System board Remove the LCD unit Make sure the following FRUs (CRUs) have been removed.

  • Page 50: Remove The Upper Case (With Keyboard And Touchpad)

    M2.5 x L5.5 Remove the upper case (with keyboard and touchpad) Make sure the following FRUs (CRUs) have been removed. “Remove the Lenovo Smart Pen” on page 28 “Remove the lower case” on page 28 “Remove the battery pack” on page 29 “Remove the solid-state drive (SSD)”...

  • Page 51: Disassemble The Lcd Unit

    “Remove the system board” on page 41 “Remove the LCD unit” on page 43 Go to https://support.lenovo.com/partslookup to look up the Lenovo part number of the following replacement part: Upper case (with keyboard and touchpad) Disassemble the LCD unit The LCD unit as a whole is not an FRU. Instead, it contains FRUs as its components. Before disassembling the LCD unit, make sure it has been detached from the upper case.
  • Page 52 “Remove the strip cover” on page 45 Step 1. Remove the rubber hinges. Figure 33. Remove the rubber hinges Go to to look up the Lenovo part number of the following replacement https://support.lenovo.com/partslookup part: Rubber hinges Remove the LCD module Make sure the following FRUs (CRUs) have been removed.
  • Page 53 Step 3. Disconnect the touch cable, and then remove the LCD module. Figure 36. Disconnect the touch cable, and then remove the LCD module Go to to look up the Lenovo part numbers of the following https://support.lenovo.com/partslookup replacement parts: LCD module...
  • Page 54 Disconnect the EDP cable from the sensor board and then remove the EDP cable. Figure 37. Disconnect the EDP cable from the sensor board and then remove the EDP cable Go to to look up the Lenovo part number of the following replacement https://support.lenovo.com/partslookup part:...
  • Page 55 Go to to look up the Lenovo part number of the following replacement https://support.lenovo.com/partslookup part: Microphone rubbers Remove the camera shutter Make sure the following FRUs (CRUs) have been removed. “Remove the LCD unit” on page 43 “Remove the strip cover” on page 45 “Remove the LCD module”...
  • Page 56 Figure 40. Disconnect the camera cable from the camera board and then remove the camera Go to https://support.lenovo.com/partslookup to look up the Lenovo part number of the following replacement part: Camera Remove the sensor board with cable Make sure the following FRUs (CRUs) have been removed.
  • Page 57 “Remove the camera” on page 49 “Remove the sensor board with cable” on page 50 “Remove the hinges” on page 50 Go to https://support.lenovo.com/partslookup to look up the Lenovo part number of the following replacement part: LCD cover Chapter 4 Removing a FRU or CRU...
  • Page 58 Hardware Maintenance Manual...

  • Page 59: Appendix A. Label Locations

    TW label 70 mm x 10 mm Indonesia rating label 26 mm x 10 mm India BIS label 22 mm x 30 mm KR KCC label 50 mm x 43 mm Japan 35 mm x 10 mm © Copyright Lenovo 2020...
  • Page 60 Table 5. All base cover labels (continued) Vietnam Energy Label 10 mm x 9 mm Hardware Maintenance Manual...

  • Page 61: Trademarks

    Trademarks LENOVO and the LENOVO logo are trademarks of Lenovo. All other trademarks are the property of their respective owners. © 2020 Lenovo.

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