Lenovo ThinkBook 14s Yoga Gen 2 Hardware Maintenance Manual
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Lenovo ThinkBook 14s Yoga Gen 2 Hardware Maintenance Manual

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Hardware Maintenance Manual
Lenovo ThinkBook 14s Yoga Gen 2

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Summary of Contents for Lenovo ThinkBook 14s Yoga Gen 2

  • Page 1 Hardware Maintenance Manual Lenovo ThinkBook 14s Yoga Gen 2...
  • Page 2 First Edition (March 2022) © Copyright Lenovo 2022.

  • Page 3: Table Of Contents

    Electrical safety ....1 Remove the Lenovo Smart Pen and pen holder . . Safety inspection guide ... . . 2 Remove the I/O board with cable .
  • 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 2022...
  • 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 2022...

  • 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 2022...

  • 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 G2 IAP (MT: 21DM) Type ac power adapter self-service Power cord self-service Lenovo Smart Pen self-service Hardware Maintenance Manual...

  • 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. © Copyright Lenovo 2022...
  • Page 30 Figure 1. Exploded view Hardware Maintenance Manual...
  • Page 31 LCD module Note: The LCD module as a whole is not an FRU, it contains FRUs as its components. Upper case (with the keyboard and the touchpad) Fingerprint board with cable Lenovo Smart Pen Pen holder Charger cable I/O bracket (right)
  • Page 32 Figure 2. LCD module — exploded view Table 3. FRU (CRU) categories FRU (CRU) category LCD panel Strip cover Hardware Maintenance Manual...
  • Page 33 Table 3. FRU (CRU) categories (continued) Camera privacy shutter Microphone rubbers Camera board Sensor board (with cable) Removable tape LCD cover Hinges Hinge rubbers EDP cable Chapter 3 Identifying FRUs (CRUs)
  • Page 34 Hardware Maintenance Manual...

  • Page 35: 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 36: Remove The Lower Case

    3. Follow the correct sequence in the steps for removing an FRU, as shown in the illustrations by the numbers in square callouts. 4. When removing an FRU, move it in the direction as shown by the arrow in the illustration. 5.

  • Page 37: Remove The Battery Pack

    Step 3. Pry up the latches and then remove the lower case. Figure 4. Pry up the latches and 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 FRU (or CRU) has been removed.

  • Page 38: Remove The Solid-State Drive (Ssd) Module

    Screw specifications Number of screws M2 x L4 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) module Make sure the following FRU (or CRU) has been removed.

  • Page 39: Remove The Wi-Fi Card

    Step 5. Remove the SSD thermalpad. Figure 9. Remove the SSD thermalpad Go to https://support.lenovo.com/partslookup to look up the Lenovo part numbers of the following replacement parts: Solid-state drive (SSD) Solid-state drive (SSD) bracket Solid-state drive (SSD) thermalpad Remove the Wi-Fi card Make sure the following FRU (or CRU) has been removed.

  • Page 40: Remove The Speakers

    Figure 10. Remove the Wi-Fi card Screw specifications Number of screws M2 x L2 Go to to look up the Lenovo part numbers of the following https://support.lenovo.com/partslookup replacement parts: Wi-Fi card Wi-Fi card mylar Remove the speakers Make sure the following FRUs (or CRUs) have been removed.

  • Page 41: Remove The Heat Sink

    Go to to look up the Lenovo part number of the following replacement https://support.lenovo.com/partslookup part: Speakers Remove the heat sink Make sure the following FRU (or CRU) has been removed. “Remove the lower case” on page 30 Step 1. Disconnect the battery pack cable from the system board.

  • Page 42: Remove The Cmos Battery

    Figure 13. Remove the fan Screw specifications Number of screws M2 x L4 Go to to look up the Lenovo part number of the following replacement https://support.lenovo.com/partslookup part: Remove the CMOS battery Make sure the following FRU (or CRU) has been removed.

  • Page 43: Remove The I/O Brackets

    Go to to look up the Lenovo part number of the following replacement https://support.lenovo.com/partslookup part: CMOS battery Remove the I/O brackets Make sure the following FRU (or CRU) has been removed. “Remove the lower case” on page 30 Step 1.

  • Page 44: Remove The Memory Module

    Figure 16. Remove the I/O brackets Number of screws Screw specifications M2 x L4 Go to to look up the Lenovo part numbers of the following https://support.lenovo.com/partslookup replacement parts: I/O bracket (left) I/O bracket (right) Remove the memory module Make sure the following FRU (or CRU) has been removed.

  • Page 45: Remove The Lenovo Smart Pen And Pen Holder

    Release the two latches on both edges of the socket at the same time. Then, remove the memory module. Figure 18. 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...

  • Page 46: Remove The I/O Board With Cable

    “Remove the battery pack” on page 31 “Remove the CMOS battery” on page 36 “Remove the Lenovo Smart Pen and pen holder” on page 39 Step 1. Remove the I/O bracket on the I/O board. See “Remove the I/O brackets” on page 37 for details.

  • Page 47: Remove The Fingerprint Board With Cable

    Figure 21. Remove the I/O board with cable Go to to look up the Lenovo part number of the following replacement https://support.lenovo.com/partslookup part: I/O board with cable Remove the fingerprint board with cable Make sure the following FRU (or CRU) has been removed.

  • Page 48: Remove The Charger Cable

    Go to to look up the Lenovo part number of the following replacement https://support.lenovo.com/partslookup part: Fingerprint board with cable Remove the charger cable Make sure the following FRU (or CRU) has been removed. “Remove the lower case” on page 30 Step 1.

  • Page 49: Use A Golden Key U1 Tool To Flash-Write Key Id Information

    Figure 25. Remove the system board Screw specifications Number of screws M1.98 x L3 Go to to look up the Lenovo part number of the following replacement https://support.lenovo.com/partslookup part: System board Use a Golden Key U1 tool to flash-write key id information...

  • Page 50: Remove The Lcd Module

    Remove the LCD module Make sure the following FRU (CRU) has been removed. “Remove the lower case” on page 30 Step 1. Disconnect the battery pack cable from the system board. Attention: Use your fingernails to pull the connector to unplug it. Do not pull the cable. Step 2.

  • Page 51: Remove The Upper Case (With The Keyboard And The Touchpad)

    “Remove the I/O brackets” on page 37 “Remove the memory module” on page 38 “Remove the Lenovo Smart Pen and pen holder” on page 39 “Remove the I/O board with cable” on page 40 “Remove the fingerprint board with cable” on page 41 “Remove the charger cable”...

  • Page 52: Disassemble The Lcd Module

    Remove the strip cover. Figure 29. Remove the strip cover Go to https://support.lenovo.com/partslookup to look up the Lenovo part number of the following replacement part: Strip cover Remove the hinge rubbers Make sure the following FRU (CRU) has been removed.

  • Page 53: Remove The Lcd Panel

    Figure 30. Remove the hinge rubbers Go to to look up the Lenovo part number of the following replacement https://support.lenovo.com/partslookup part: Hinge rubbers Remove the LCD panel Make sure the following FRUs (CRUs) have been removed. “Remove the LCD module” on page 44 “Remove the strip cover”...

  • Page 54: Remove The Hinges

    Turn over the LCD panel. Disconnect the EDP cable from the LCD panel and then remove the LCD panel. Figure 32. Remove the LCD panel Go to to look up the Lenovo part numbers of the following https://support.lenovo.com/partslookup replacement parts: LCD panel...

  • Page 55: Remove The Camera Privacy Shutter

    Figure 33. Remove the hinges Screw specifications Number of screws M2 x L2 Go to to look up the Lenovo part number of the following replacement https://support.lenovo.com/partslookup part: Hinges Remove the camera privacy shutter Make sure the following FRUs (CRUs) have been removed.

  • Page 56: Remove The Microphone Rubbers

    “Remove the LCD panel” on page 47 Step 1. Remove the microphone rubbers. Figure 35. Remove the microphone rubbers Go to to look up the Lenovo part numbers of the following https://support.lenovo.com/partslookup replacement parts: Microphone rubbers Removable tape Remove the camera board Make sure the following FRUs (CRUs) have been removed.

  • Page 57: Remove The Sensor Board (With Cable)

    Figure 36. Remove the camera board Go to https://support.lenovo.com/partslookup to look up the Lenovo part numbers of the following replacement parts: Camera board Removable tape Remove the sensor board (with cable) Make sure the following FRUs (CRUs) have been removed.

  • Page 58: Remove The Edp Cable

    “Remove the camera board” on page 50 “Remove the sensor board (with cable)” on page 51 “Remove the EDP cable” on page 52 Go to https://support.lenovo.com/partslookup to look up the Lenovo part number of the following replacement part: LCD cover Hardware Maintenance Manual...

  • Page 59: Appendix A. Label Locations

    35 mm x 15 mm 32 mm x 10 mm Israel/US/CA/TW SouthAfrica 20 mm x 10 mm Malaysia/Indonesia 15mm x 10 mm Argentina 68 mm x 6 mm Country label VietNam Energy label 10 mm x 9 mm © Copyright Lenovo 2022...
  • Page 60 Table 5. All base cover labels (continued) TW label 70 mm x 10 mm Adapter Label 65 mm x 20 mm 22 mm x 30 mm Country label India BIS label KR KCC label 50 mm x 43 mm Indonesia rating label 26 mm x 10 mm Japan 35 mm x 10 mm...

  • Page 61: Trademarks

    Trademarks LENOVO and the LENOVO logo are trademarks of Lenovo. All other trademarks are the property of their respective owners. © 2022 Lenovo.

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