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Lenovo 14e Chromebook Gen 3 Hardware Maintenance Manual

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Lenovo 14e Chromebook Gen 3
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Hardware Maintenance Manual

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Summary of Contents for Lenovo 14e Chromebook Gen 3

  • Page 1 Lenovo 14e Chromebook Gen 3 Lenovo Slim 3i Chromebook 14″ IdeaPad Slim 3i Chromebook (14″, 8) Hardware Maintenance Manual...
  • Page 2 First Edition (March 2023) © Copyright Lenovo 2023.

  • Page 3: Table Of Contents

    Remove the Wi-Fi card ... . Trademarks ....lix Remove the right I/O board bracket ..© Copyright Lenovo 2023...
  • Page 4 Lenovo 14e Chromebook Gen 3 Lenovo Slim 3i Chromebook 14″ IdeaPad Slim 3i Chromebook (14″, 8) 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 2023...
  • Page 6 Lenovo 14e Chromebook Gen 3 Lenovo Slim 3i Chromebook 14″ IdeaPad Slim 3i Chromebook (14″, 8) 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 2023...

  • Page 8: Safety Inspection Guide

    • Explosive hazards, such as a damaged cathode ray tube (CRT) face or a bulging capacitor • Mechanical hazards, such as loose or missing hardware Lenovo 14e Chromebook Gen 3 Lenovo Slim 3i Chromebook 14″ IdeaPad Slim 3i Chromebook (14″, 8) Hardware Maintenance Manual...

  • 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

    • Brazilian Portuguese • French • German • Hebrew • Japanese • Korean • Spanish • Traditional Chinese DANGER DANGER DANGER Lenovo 14e Chromebook Gen 3 Lenovo Slim 3i Chromebook 14″ IdeaPad Slim 3i Chromebook (14″, 8) Hardware Maintenance Manual...
  • Page 11 DANGER DANGER DANGER DANGER DANGER Chapter 1 Safety information...
  • Page 12 Lenovo 14e Chromebook Gen 3 Lenovo Slim 3i Chromebook 14″ IdeaPad Slim 3i Chromebook (14″, 8) Hardware Maintenance Manual...
  • Page 13 PERIGO PERIGO PERIGO Chapter 1 Safety information...
  • Page 14 PERIGO PERIGO PERIGO PERIGO PERIGO Lenovo 14e Chromebook Gen 3 Lenovo Slim 3i Chromebook 14″ IdeaPad Slim 3i Chromebook (14″, 8) Hardware Maintenance Manual...
  • Page 15 DANGER DANGER DANGER DANGER Chapter 1 Safety information...
  • Page 16 DANGER DANGER DANGER DANGER VORSICHT Lenovo 14e Chromebook Gen 3 Lenovo Slim 3i Chromebook 14″ IdeaPad Slim 3i Chromebook (14″, 8) Hardware Maintenance Manual...
  • Page 17 VORSICHT VORSICHT VORSICHT VORSICHT Chapter 1 Safety information...
  • Page 18 VORSICHT VORSICHT VORSICHT Lenovo 14e Chromebook Gen 3 Lenovo Slim 3i Chromebook 14″ IdeaPad Slim 3i Chromebook (14″, 8) Hardware Maintenance Manual...
  • Page 19 Chapter 1 Safety information...
  • Page 20 Lenovo 14e Chromebook Gen 3 Lenovo Slim 3i Chromebook 14″ IdeaPad Slim 3i Chromebook (14″, 8) Hardware Maintenance Manual...
  • Page 21 Chapter 1 Safety information...
  • Page 22 Lenovo 14e Chromebook Gen 3 Lenovo Slim 3i Chromebook 14″ IdeaPad Slim 3i Chromebook (14″, 8) Hardware Maintenance Manual...
  • Page 23 Chapter 1 Safety information...
  • Page 24 Lenovo 14e Chromebook Gen 3 Lenovo Slim 3i Chromebook 14″ IdeaPad Slim 3i Chromebook (14″, 8) Hardware Maintenance Manual...
  • Page 25 Chapter 1 Safety information...
  • Page 26 Lenovo 14e Chromebook Gen 3 Lenovo Slim 3i Chromebook 14″ IdeaPad Slim 3i Chromebook (14″, 8) Hardware Maintenance Manual...

  • Page 27: Chapter 2. General Checkout

    • LCD panel cracked from the application of excessive force or from being dropped • 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 © Copyright Lenovo 2023...

  • Page 28: Cru List

    Type ac power adapter self-service power cord self-service lower case self-service left I/O board bracket optional-service right I/O board bracket optional-service Lenovo 14e Chromebook Gen 3 Lenovo Slim 3i Chromebook 14″ IdeaPad Slim 3i Chromebook (14″, 8) Hardware Maintenance Manual...

  • Page 29: Chapter 3. Create And Use A Usb Repair Shim

    When you use the USB repair shim to diagnose problems, the Chromebook enters the factory-test-image environment and runs through factory test items. Note: For the latest and detailed shim instruction, you can refer to the RMA Shim SOP from "Drivers & Software" on with Lenovo service credential. https://support.lenovo.com © Copyright Lenovo 2023...
  • Page 30 Lenovo 14e Chromebook Gen 3 Lenovo Slim 3i Chromebook 14″ IdeaPad Slim 3i Chromebook (14″, 8) Hardware Maintenance Manual...

  • Page 31: Chapter 4. Identifying Frus (Crus)

    Chapter 4. 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 Chromebook. Figure 1. System exploded view © Copyright Lenovo 2023...
  • Page 32 40-pin I/O board cable* 14-pin I/O board cable* Battery pack Screw kit ac power adapter Power cord * for selected models Lenovo 14e Chromebook Gen 3 Lenovo Slim 3i Chromebook 14″ IdeaPad Slim 3i Chromebook (14″, 8) Hardware Maintenance Manual...
  • Page 33 Figure 2. LCD exploded view Table 4. FRU (CRU) categories FRU (CRU) category LCD bezel LCD panel EDP cable Microphone rubbers Camera board LCD cover Removable tapes Hinges Hinge caps Chapter 4 Identifying FRUs (CRUs)
  • Page 34 Lenovo 14e Chromebook Gen 3 Lenovo Slim 3i Chromebook 14″ IdeaPad Slim 3i Chromebook (14″, 8) Hardware Maintenance Manual...

  • Page 35: Chapter 5. Removing A Fru Or Cru

    Chapter 5. Removing a FRU or CRU Service tools The following table lists tools for servicing Lenovo Chromebooks. 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

    Place the Chromebook upside down on a flat surface. Step 2. Loosen 10 screws. Then, pry up the latches and remove the lower case. Lenovo 14e Chromebook Gen 3 Lenovo Slim 3i Chromebook 14″ IdeaPad Slim 3i Chromebook (14″, 8) Hardware Maintenance Manual...

  • Page 37: Remove The Battery Pack

    Screw specifications Number of screws M2.5 × L7.0 Go to https://support.lenovo.com/partslookup to look up the Lenovo part numbers of the following replacement part: Lower case Remove the battery pack Make sure the following FRUs (or CRUs) have been removed. “Remove the lower case” on page 30 Step 1.

  • Page 38: Remove The Wi-Fi Card

    Wi-Fi card and then remove one screw. Attention: Use your fingernail to pull the connector to unplug it. Do not pull the cable. Lenovo 14e Chromebook Gen 3 Lenovo Slim 3i Chromebook 14″ IdeaPad Slim 3i Chromebook (14″, 8) Hardware Maintenance Manual...

  • Page 39: Remove The Right I/O Board Bracket

    Remove the Wi-Fi card. Figure 6. Remove the Wi-Fi card Go to https://support.lenovo.com/partslookup to look up the Lenovo part numbers of the following replacement part: Wi-Fi card Remove the right I/O board bracket Make sure the following FRUs (or CRUs) have been removed.

  • Page 40: Remove The Left I/O Board Bracket

    Disconnect the battery pack cable from the system board. Remove three screws and remove the left I/O board bracket. Attention: Use your fingernail to pull the connector to unplug it. Do not pull the cable. Lenovo 14e Chromebook Gen 3 Lenovo Slim 3i Chromebook 14″ IdeaPad Slim 3i Chromebook (14″, 8) Hardware Maintenance Manual...

  • Page 41: Remove The 14-Pin I/O Board Ffc (For Selected Models)

    Number of screws M2.0 × L4.5 Go to https://support.lenovo.com/partslookup to look up the Lenovo part numbers of the following replacement part: Left I/O board bracket Remove the 14-pin I/O board FFC (for selected models) Make sure the following FRUs (or CRUs) have been removed.

  • Page 42: Remove The 40-Pin I/O Board Ffc (For Selected Models)

    Attention: Use your fingernail to pull the connector to unplug it. Do not pull the cable. Figure 10. Disconnect and remove the 40-pin I/O board FFC Lenovo 14e Chromebook Gen 3 Lenovo Slim 3i Chromebook 14″ IdeaPad Slim 3i Chromebook (14″, 8) Hardware Maintenance Manual...

  • Page 43: Remove The 40-Pin I/O Board Cable (For Selected Models)

    Go to to look up the Lenovo part numbers of the following https://support.lenovo.com/partslookup replacement part: 40-pin I/O board FFC Remove the 40-pin I/O board cable (for selected models) Make sure the following FRUs (or CRUs) have been removed. “Remove the lower case” on page 30 Step 1.

  • Page 44: Remove The I/O Board

    Disconnect the 14-pin I/O board FFC and 40-pin I/O board FFC from the I/O board. Remove two screws and remove the I/O board. Lenovo 14e Chromebook Gen 3 Lenovo Slim 3i Chromebook 14″ IdeaPad Slim 3i Chromebook (14″, 8) Hardware Maintenance Manual...

  • Page 45: Remove The Dummy Fan (For Selected Models)

    Number of screws M2.0 × L4.5 Go to https://support.lenovo.com/partslookup to look up the Lenovo part numbers of the following replacement part: I/O board Remove the dummy fan (for selected models) Make sure the following FRUs (or CRUs) have been removed.

  • Page 46: Remove The Fan (For Selected Models)

    I/O board cable from the cable guide. Attention: Use your fingernail to pull the connector to unplug it. Do not pull the cable. Lenovo 14e Chromebook Gen 3 Lenovo Slim 3i Chromebook 14″ IdeaPad Slim 3i Chromebook (14″, 8) Hardware Maintenance Manual...

  • Page 47: Remove The Speakers

    Figure 17. Disconnect the fan cable, remove three screws and the fan Screw specifications Number of screws M2.0 × L4.5 Go to to look up the Lenovo part numbers of the following https://support.lenovo.com/partslookup replacement part: Remove the speakers Make sure the following FRUs (CRUs) have been removed.

  • Page 48: Remove The Wi-Fi Antennas

    Disconnect the keyboard backlight cable (if any), keyboard cable, and speaker cable from the system board. Then, carefully remove the speaker cable from the cable guide. Lenovo 14e Chromebook Gen 3 Lenovo Slim 3i Chromebook 14″ IdeaPad Slim 3i Chromebook (14″, 8) Hardware Maintenance Manual...

  • Page 49: Remove The System Board And Heat Sink (For Dummy Fan Models)

    Then, remove the Wi-Fi antennas. Figure 20. Disconnect the antennas cables and remove the Wi-Fi antennas from the cable guide Go to to look up the Lenovo part numbers of the following https://support.lenovo.com/partslookup replacement part: Wi-Fi antenna Remove the system board and heat sink (for dummy fan models) Make sure the following FRUs (or CRUs) have been removed.
  • Page 50 Screw specifications Number of screws M2.0 × L4.5 Step 3. Loosen four screws in alphabetical order and then remove the heat sink. Lenovo 14e Chromebook Gen 3 Lenovo Slim 3i Chromebook 14″ IdeaPad Slim 3i Chromebook (14″, 8) Hardware Maintenance Manual...

  • Page 51: Remove The System Board And Heat Sink (For Real Fan Models)

    Figure 23. Loosen four screws and remove the heat sink Go to to look up the Lenovo part numbers of the following https://support.lenovo.com/partslookup replacement parts: System board Heat sink Remove the system board and heat sink (for real fan models) Make sure the following FRUs (or CRUs) have been removed.

  • Page 52: Remove The Lcd Module

    Lenovo part numbers of the following replacement parts: System board Heat sink Remove the LCD module Make sure the following FRUs (CRUs) have been removed. Lenovo 14e Chromebook Gen 3 Lenovo Slim 3i Chromebook 14″ IdeaPad Slim 3i Chromebook (14″, 8) Hardware Maintenance Manual...
  • Page 53 Rotate the LCD module to an angle of more than 90 degrees and place the Chromebook on a flat surface as shown. Then, remove the LCD module. Figure 28. Rotate and remove the LCD module Go to to look up the Lenovo part numbers of the following https://support.lenovo.com/partslookup replacement part: LCD module...

  • Page 54: Remove The Upper Case (With Keyboard)

    Make sure the following FRUs (or CRUs) have been removed. “Remove the lower case” on page 30 “Remove the LCD module” on page 46 Step 1. Remove the hinge caps Lenovo 14e Chromebook Gen 3 Lenovo Slim 3i Chromebook 14″ IdeaPad Slim 3i Chromebook (14″, 8) Hardware Maintenance Manual...

  • Page 55: Remove The Lcd Bezel

    Figure 29. Remove the hinge caps Go to to look up the Lenovo part numbers of the following https://support.lenovo.com/partslookup replacement part: Hinge cap Remove the LCD bezel Make sure the following FRUs (CRUs) have been removed. “Remove the lower case” on page 30 “Remove the LCD module”...

  • Page 56: Remove The Hinges

    “Remove the LCD bezel” on page 49 Step 1. Remove eight screws and remove the hinges. Figure 31. Remove eight screws and the hinges Lenovo 14e Chromebook Gen 3 Lenovo Slim 3i Chromebook 14″ IdeaPad Slim 3i Chromebook (14″, 8) Hardware Maintenance Manual...

  • Page 57: Remove The Lcd Panel

    Screw specifications Number of screws M2.0 × L2.2 Go to https://support.lenovo.com/partslookup to look up the Lenovo part numbers of the following replacement part: Hinge Remove the LCD panel Make sure the following FRUs (or CRUs) have been removed. “Remove the lower case” on page 30 “Remove the LCD module”...

  • Page 58: Remove The Edp Cable

    “Remove the LCD panel” on page 51 Step 1. Disconnect the EDP cable from the camera board. Then, remove the EDP cable. Lenovo 14e Chromebook Gen 3 Lenovo Slim 3i Chromebook 14″ IdeaPad Slim 3i Chromebook (14″, 8) Hardware Maintenance Manual...

  • Page 59: Remove The Microphone Rubbers

    Figure 34. Disconnect and remove the EDP cable Go to to look up the Lenovo part numbers of the following https://support.lenovo.com/partslookup replacement part: EDP cable Remove the microphone rubbers Make sure the following FRUs (or CRUs) have been removed. “Remove the lower case” on page 30 “Remove the LCD module”...

  • Page 60: Remove The Camera Board

    “Remove the hinge caps” on page 48 “Remove the LCD bezel” on page 49 “Remove the hinges” on page 50 “Remove the LCD panel” on page 51 Lenovo 14e Chromebook Gen 3 Lenovo Slim 3i Chromebook 14″ IdeaPad Slim 3i Chromebook (14″, 8) Hardware Maintenance Manual...
  • Page 61 “Remove the EDP cable” on page 52 “Remove the microphone rubbers” on page 53 “Remove the camera board” on page 54 Go to to look up the Lenovo part numbers of the following https://support.lenovo.com/partslookup replacement part: LCD cover Chapter 5...
  • Page 62 Lenovo 14e Chromebook Gen 3 Lenovo Slim 3i Chromebook 14″ IdeaPad Slim 3i Chromebook (14″, 8) Hardware Maintenance Manual...

  • Page 63: Appendix A. Label Locations

    Label dimensions Asset tag Label ≤ 50.8 mm x 25.4 mm Asset tag Label ≥ 50.8 mm x 25.4 mm Rating Label 100 mm x 30 mm Battery Recycling Label Taiwan 24 mm x 20 mm © Copyright Lenovo 2023...
  • Page 64 Lenovo 14e Chromebook Gen 3 Lenovo Slim 3i Chromebook 14″ IdeaPad Slim 3i Chromebook (14″, 8) Hardware Maintenance Manual...

  • Page 65: Trademarks

    Trademarks LENOVO and the LENOVO logo are trademarks of Lenovo. All other trademarks are the property of their respective owners. © 2023 Lenovo.

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