Lenovo 500e Chromebook Gen 4s Hardware Maintenance Manual
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Lenovo 500e Chromebook Gen 4s Hardware Maintenance Manual

Lenovo 500e Chromebook Gen 4s Hardware Maintenance Manual

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Lenovo 500e Chromebook Gen 4s
Hardware Maintenance Manual

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Summary of Contents for Lenovo 500e Chromebook Gen 4s

  • Page 1 Lenovo 500e Chromebook Gen 4s Hardware Maintenance Manual...
  • Page 2 First Edition (October 2024) © Copyright Lenovo 2024.

  • Page 3: Table Of Contents

    Chapter 6. Label locations ..61 Remove the electronic pen (for selected models) . . Trademarks ....lxiii © Copyright Lenovo 2024...
  • Page 4 Lenovo 500e Chromebook Gen 4s Hardware Maintenance Manual...

  • Page 5: About This Manual

    • It is recommended that these products be repaired by trained service technicians. For customers electing to repair their own Lenovo products, please follow all instructions carefully. • Before servicing a Lenovo product, be sure to read all the information under Chapter 1 “Safety information” on page 1.
  • Page 6 Lenovo 500e Chromebook Gen 4s 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 – Removing or installing main units © Copyright Lenovo 2024...

  • 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

    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 DANGER DANGER Lenovo 500e Chromebook Gen 4s Hardware Maintenance Manual...
  • Page 11 DANGER DANGER DANGER DANGER DANGER Chapter 1 Safety information...
  • Page 12 Lenovo 500e Chromebook Gen 4s Hardware Maintenance Manual...
  • Page 13 PERIGO PERIGO PERIGO Chapter 1 Safety information...
  • Page 14 PERIGO PERIGO PERIGO PERIGO PERIGO Lenovo 500e Chromebook Gen 4s Hardware Maintenance Manual...
  • Page 15 DANGER DANGER DANGER DANGER Chapter 1 Safety information...
  • Page 16 DANGER DANGER DANGER DANGER VORSICHT Lenovo 500e Chromebook Gen 4s Hardware Maintenance Manual...
  • Page 17 VORSICHT VORSICHT VORSICHT VORSICHT Chapter 1 Safety information...
  • Page 18 VORSICHT VORSICHT VORSICHT Lenovo 500e Chromebook Gen 4s Hardware Maintenance Manual...
  • Page 19 Chapter 1 Safety information...
  • Page 20 Lenovo 500e Chromebook Gen 4s Hardware Maintenance Manual...
  • Page 21 Chapter 1 Safety information...
  • Page 22 Lenovo 500e Chromebook Gen 4s Hardware Maintenance Manual...
  • Page 23 Chapter 1 Safety information...
  • Page 24 Lenovo 500e Chromebook Gen 4s Hardware Maintenance Manual...
  • Page 25 Chapter 1 Safety information...
  • Page 26 Lenovo 500e Chromebook Gen 4s 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 2024...

  • 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: Catalog name (Machine type: 83L4, 83L5) Type ac power adapter self-service power cord self-service Lenovo 500e Chromebook Gen 4s Hardware Maintenance Manual...

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

    Lenovo service credential. https://support.lenovo.com We strongly recommend that only trained technicians install the motherboard and shim. Customers undertake self-repair at their own risk. If customer requests the Self Repair Shim, please call Lenovo Customer Support Center. Go to https://pcsupport.lenovo.com/supportphonelist for the latest phone numbers.
  • Page 30 Lenovo 500e Chromebook Gen 4s Hardware Maintenance Manual...

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

    Chapter 4. Identifying FRUs (CRUs) Locate FRUs and CRUs The exploded illustrations help users and service technicians identify FRUs and CRUs required when servicing a machine. Figure 1. System exploded view © Copyright Lenovo 2024...
  • Page 32 Electronic pen* Electronic pen board* Electronic pen board cable* Battery door Wi-Fi antennas Speakers Heatsink Touchpad mylar Touch cable Upper case assembly Power cord ac power adapter Screw kit * for selected models Lenovo 500e Chromebook Gen 4s Hardware Maintenance Manual...
  • Page 33 Figure 2. LCD exploded view Table 3. FRU (CRU) categories FRU (CRU) category Camera board Camera board foil G sensor board WWAN antennas* Camera cable LCD cover Hinges Hinge rubbers Strip cover screw mylar Strip cover LCD panel * for selected models Chapter 4 Identifying FRUs (CRUs)
  • Page 34 Lenovo 500e Chromebook Gen 4s 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 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: Handling Devices That Are Sensitive To Electrostatic Discharge

    – 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. Lenovo 500e Chromebook Gen 4s Hardware Maintenance Manual...

  • Page 37: Handling Thermal Interface Materials

    Handling thermal interface materials Thermal interface materials are typically applied between a heat sink and a CPU (and/or GPU) die to enhance the heat transfer capability of the heat sink. If thermal interface materials are exposed during computer servicing, such as when replacing the heat sink or system board, it is important to handle the thermal interface materials properly.

  • Page 38: Remove The Electronic Pen (For Selected Models)

    Place the computer upside down on a flat surface. Step 2. Remove the electronic pen. Figure 5. Remove the electronic pen Go to to look up the Lenovo part numbers of the following https://support.lenovo.com/partslookup replacement part: Electronic pen Remove the dummy pen cap (for selected models) Step 1.

  • Page 39: Remove The Battery Door

    Figure 6. Remove the dummy pen cap Go to https://support.lenovo.com/partslookup to look up the Lenovo part numbers of the following replacement part: Dummy pen cap Remove the battery door Make sure the computer has been shut down before servicing the computer.

  • Page 40: Remove The Battery Pack

    Attention: Use your fingernail to pull the connector to unplug it. Do not pull the cable. Figure 8. Loosen four screws and remove the battery pack Go to to look up the Lenovo part numbers of the following https://support.lenovo.com/partslookup replacement part:...

  • Page 41: Remove The Wi-Fi Card

    Label Thread 1.85±0.15 Go to https://support.lenovo.com/partslookup to look up the Lenovo part numbers of the following replacement part: Lower case Remove the Wi-Fi card Make sure the following FRUs (or CRUs) have been removed. “Remove the battery door” on page 33 “Remove the lower case”...

  • Page 42: Remove The 14-Pin I/O Board Cable

    Length (mm) Torque (kgf.cm) Quantity Thread 1.85±0.15 Go to to look up the Lenovo part numbers of the following https://support.lenovo.com/partslookup replacement parts: Wi-Fi card Remove the 14-pin I/O board cable Make sure the following FRUs (or CRUs) have been removed.

  • Page 43: Remove The 40-Pin I/O Board Cable

    Attention: Use your fingernail to pull the connector to unplug it. Do not pull the cable. Figure 12. Disconnect the 14-pin I/O board cable Go to to look up the Lenovo part numbers of the following https://support.lenovo.com/partslookup replacement part: 14-pin I/O board cable Remove the 40-pin I/O board cable Make sure the following FRUs (or CRUs) have been removed.

  • Page 44: Remove The Wwan Card (For Selected Models)

    Figure 13. Disconnect the 40-pin I/O board cable Go to https://support.lenovo.com/partslookup to look up the Lenovo part numbers of the following replacement part: 40-pin I/O board cable Remove the WWAN card (for selected models) Make sure the following FRUs (or CRUs) have been removed.

  • Page 45: Remove The Speakers

    Table 7. Screw used to secure the WWAN card Length (mm) Torque (kgf.cm) Quantity Thread 1.85±0.15 Go to to look up the Lenovo part numbers of the following https://support.lenovo.com/partslookup replacement parts: WWAN card Remove the speakers Make sure the following FRUs (CRUs) have been removed. Chapter 5...

  • Page 46: Remove The Electronic Pen Board And Cable (For Selected Models)

    Figure 16. Disconnect and remove the speakers Go to https://support.lenovo.com/partslookup to look up the Lenovo part numbers of the following replacement part: Speakers Remove the electronic pen board and cable (for selected models) Make sure the following FRUs (or CRUs) have been removed.

  • Page 47: Remove The Type-C Bracket

    Step 2. Remove the pen cable. Figure 18. Remove the electronic pen cable Go to https://support.lenovo.com/partslookup to look up the Lenovo part numbers of the following replacement part: Electronic pen board Electronic pen cable Remove the type-C bracket Make sure the following FRUs (or CRUs) have been removed.

  • Page 48: Remove The I/O Board Bracket

    Length (mm) Torque (kgf.cm) Quantity Thread 1.85±0.15 Go to to look up the Lenovo part numbers of the following https://support.lenovo.com/partslookup replacement parts: Type-C bracket Remove the I/O board bracket Make sure the following FRUs (or CRUs) have been removed. “Remove the battery door” on page 33 “Remove the lower case”...

  • Page 49: Remove The I/O Board

    Quantity Thread 1.85±0.15 Go to https://support.lenovo.com/partslookup to look up the Lenovo part numbers of the following replacement parts: I/O board bracket Remove the I/O board Make sure the following FRUs (or CRUs) have been removed. “Remove the battery door” on page 33 “Remove the lower case”...

  • Page 50: Remove The Touchpad Cable

    Length (mm) Torque (kgf.cm) Quantity Thread 1.85±0.15 Go to to look up the Lenovo part numbers of the following https://support.lenovo.com/partslookup replacement part: I/O board Remove the touchpad cable Make sure the following FRUs (or CRUs) have been removed. Lenovo 500e Chromebook Gen 4s Hardware Maintenance Manual...
  • Page 51 Figure 23. Remove the touchpad mylar. Step 2. Disconnect and remove the touchpad cable. Figure 24. Disconnect and remove the touchpad cable Go to to look up the Lenovo part numbers of the following https://support.lenovo.com/partslookup replacement part: Touchpad cable Touchpad mylar...

  • Page 52: Remove The System Board And Heatsink

    Disconnect the camera cable, EDP cable, speakers’ cable, keyboard cable, touchpad cable, I/O board cable from the system board. Figure 25. Disconnect all cables Step 2. Remove three screws and remove the system board. Lenovo 500e Chromebook Gen 4s Hardware Maintenance Manual...
  • Page 53 1.85±0.15 Step 3. Loosen four screws in alphabetical order and remove the heatsink. Figure 27. Loosen four screws and remove the heatsink Go to to look up the Lenovo part numbers of the following https://support.lenovo.com/partslookup replacement part: System board Heatsink...

  • Page 54: Remove The Wfc Camera Module (For Selected Models)

    Disconnect the camera cable from the camera and remove the camera board. Figure 28. Disconnect the camera cable and remove the camera board Step 2. Remove the WFC camera board foil. Figure 29. Remove the WFC camera board foil Lenovo 500e Chromebook Gen 4s Hardware Maintenance Manual...

  • Page 55: Remove The Wi-Fi Card Antennas

    Disconnect the WFC camera cable from the camera and remove the WFC camera board. Figure 30. Disconnect the camera WFC cable and remove the WFC camera board Go to https://support.lenovo.com/partslookup to look up the Lenovo part numbers of the following replacement part: WFC camera board module WFC camera board foil Remove the Wi-Fi card antennas Make sure the following FRUs (or CRUs) have been removed.

  • Page 56: Remove The Lcd Module

    Figure 31. Remove the Wi-Fi card antennas Go to https://support.lenovo.com/partslookup to look up the Lenovo part numbers of the following replacement parts: Wi-Fi card antennas Remove the LCD module Make sure the following FRUs (CRUs) have been removed. “Remove the lower case” on page 34 “Remove the 14-pin I/O board cable”...
  • Page 57 Rotate the LCD module to an angle of more than 90 degrees and place the computer on a flat surface as shown. Then, remove the LCD module. Figure 34. 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 58: Remove The Upper Case (With Keyboard)

    “Remove the Wi-Fi card antennas” on page 49 “Remove the LCD module” on page 50 Go to https://support.lenovo.com/partslookup to look up the Lenovo part numbers of the following replacement part: Upper case (with keyboard) Disassemble the LCD module Before disassembling the LCD module, make sure it has been detached from the upper case assembly.
  • Page 59 Table 13. Screws used to secure the strip cover Length (mm) Torque (kgf.cm) Quantity Thread 1.85±0.15 Go to to look up the Lenovo part numbers of the following https://support.lenovo.com/partslookup replacement part: Strip cover strip cover screw mylar Chapter 5 Removing a FRU or CRU...

  • Page 60: Remove The Lcd Panel And Hinge Rubber

    Length (mm) Torque (kgf.cm) Quantity Thread 1.85±0.15 Go to to look up the Lenovo part numbers of the following https://support.lenovo.com/partslookup replacement part: LCD panel Hinge rubber Remove the hinges and hinge rubber Make sure the following FRUs (CRUs) have been removed.

  • Page 61: Remove The Camera Board

    Torque (kgf.cm) Quantity Label Thread 1.85±0.15 1.85±0.15 Go to to look up the Lenovo part numbers of the following https://support.lenovo.com/partslookup replacement part: Hinges Hinge rubber Remove the camera board Make sure the following FRUs (CRUs) have been removed. “Remove the lower case” on page 34 “Remove the LCD module”...
  • Page 62 Take the camera board out of the groove. Figure 40. Take the camera board out of the groove Step 3. Remove the microphone rubber. Disconnect the EDP cable and remove the camera board. Lenovo 500e Chromebook Gen 4s Hardware Maintenance Manual...

  • Page 63: Remove The Edp Cable

    Figure 41. Remove the microphone rubbers Go to https://support.lenovo.com/partslookup to look up the Lenovo part numbers of the following replacement part: Camera board Camera board AL foil Remove the EDP cable Make sure the following FRUs (CRUs) have been removed.

  • Page 64: Remove The G Sensor Board

    Figure 42. Remove the EDP cable Go to https://support.lenovo.com/partslookup to look up the Lenovo part numbers of the following replacement part: EDP cable Remove the G sensor board Make sure the following FRUs (CRUs) have been removed. “Remove the lower case” on page 34 “Remove the LCD module”...

  • Page 65: Remove The Wwan Card Antennas (For Selected Models)

    Go to to look up the Lenovo part numbers of the following https://support.lenovo.com/partslookup replacement part: G sensor board Remove the WWAN card antennas (for selected models) Make sure the following FRUs (CRUs) have been removed. “Remove the lower case” on page 34 “Remove the LCD module”...
  • Page 66 Go to to look up the Lenovo part numbers of the following https://support.lenovo.com/partslookup replacement part: LCD cover Lenovo 500e Chromebook Gen 4s Hardware Maintenance Manual...

  • Page 67: Chapter 6. Label Locations

    32 mm x 10 mm Israel/US/CA/TW 20 mm x 10 mm South Africa Malaysia/Indonesia 15 mm x 10 mm Vietnam 10 mm x 9 mm Belarus 40 mm x 8 mm 22 mm x 30 mm India (BIS) © Copyright Lenovo 2024...
  • Page 68 Table 16. All base cover labels (continued) CO2 offset label 18 mm x 18 mm 16 mm x 22.5 mm OS label Lenovo 500e Chromebook Gen 4s Hardware Maintenance Manual...

  • Page 69: Trademarks

    Trademarks LENOVO and the LENOVO logo are trademarks of Lenovo. All other trademarks are the property of their respective owners. © 2024 Lenovo.

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