Lenovo Chromebook Plus 2-in-1 Hardware Maintenance Manual

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Lenovo Chromebook Plus 2-in-1 (14", 10)

Hardware Maintenance Manual

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Page 1 Lenovo Chromebook Plus 2-in-1 (14″, 10) Hardware Maintenance Manual...
Page 4 Lenovo Chromebook Plus 2-in-1 (14″, 10) 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 Chromebook Plus 2-in-1 (14″, 10) 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 2025...
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 Chromebook Plus 2-in-1 (14″, 10) Hardware Maintenance Manual...
Page 11 DANGER DANGER DANGER DANGER DANGER Chapter 1 Safety information...
Page 12 Lenovo Chromebook Plus 2-in-1 (14″, 10) Hardware Maintenance Manual...
Page 13 PERIGO PERIGO PERIGO Chapter 1 Safety information...
Page 14 PERIGO PERIGO PERIGO PERIGO PERIGO Lenovo Chromebook Plus 2-in-1 (14″, 10) Hardware Maintenance Manual...
Page 15 DANGER DANGER DANGER DANGER Chapter 1 Safety information...
Page 16 DANGER DANGER DANGER DANGER VORSICHT Lenovo Chromebook Plus 2-in-1 (14″, 10) Hardware Maintenance Manual...
Page 17 VORSICHT VORSICHT VORSICHT VORSICHT Chapter 1 Safety information...
Page 18 VORSICHT VORSICHT VORSICHT Lenovo Chromebook Plus 2-in-1 (14″, 10) Hardware Maintenance Manual...
Page 19 Chapter 1 Safety information...
Page 20 Lenovo Chromebook Plus 2-in-1 (14″, 10) Hardware Maintenance Manual...
Page 21 Chapter 1 Safety information...
Page 22 Lenovo Chromebook Plus 2-in-1 (14″, 10) Hardware Maintenance Manual...
Page 23 Chapter 1 Safety information...
Page 24 Lenovo Chromebook Plus 2-in-1 (14″, 10) Hardware Maintenance Manual...
Page 25 Chapter 1 Safety information...
Page 26 Lenovo Chromebook Plus 2-in-1 (14″, 10) 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 2025...
Page 28: Cru List
Table 1. Model: Catalog name (Machine type: 83LL, 83LM) Type ac power adapter self-service power cord self-service Lenovo USI Pen 2 Magnetic* self-service Base cover assembly optional-service Battery pack optional-service * for selected models Lenovo Chromebook Plus 2-in-1 (14″, 10) 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 Chromebook Plus 2-in-1 (14″, 10) 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 computer. Figure 1. System exploded view © Copyright Lenovo 2025...
Page 32 Battery pack Speakers Golden mylar Type-C bracket Upper case (with keyboard) Touchpad cable Touchpad mylar Touchpad Power cord ac power adapter Screw kit Lenovo USI Pen 2 Magnetic* * for selected models Lenovo Chromebook Plus 2-in-1 (14″, 10) Hardware Maintenance Manual...
Page 33: 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 34: Handling Thermal Interface Materials
The table and figure below provide information on the type and quantity of thermal interface materials, as well as the specific areas on the heat sink where these materials should be applied. Area Type Quantity 0.187 g, 29 mm × 12.4 mm × 0.2 mm TC-5550 Lenovo Chromebook Plus 2-in-1 (14″, 10) Hardware Maintenance Manual...
Page 35: Area(S) On The System Board Where Thermal Interface Materials Are Applied
Figure 2. Area on the heat sink where thermal interface materials should be applied Area(s) on the system board where thermal interface materials are applied The following figure shows the area(s) on the system board where thermal interface materials are applied. Figure 3.
Page 36: Remove The Battery Pack
Batteries supplied by Lenovo for use with your product have been tested for compatibility and should only be replaced with approved parts. A battery other than the one specified by Lenovo, or a disassembled or modified battery may not be covered by warranty.
Page 37: Remove The Fan
Figure 5. Loosen three screws and the battery pack Note: You can scan the QR code on the built-in battery to view the battery replacement video. Go to https://support.lenovo.com/partslookup to look up the Lenovo part numbers of the following replacement part: Battery pack Remove the fan Make sure the following FRUs (or CRUs) have been removed.
Page 38 Figure 7. Disconnect the fan cable from the system board and remove two screws and the fan Table 4. Screws used to secure the fan Length (mm) Torque (kgf.cm) Quantity Thread 2.0±0.2 Go to to look up the Lenovo part numbers of the following https://support.lenovo.com/partslookup replacement part: Lenovo Chromebook Plus 2-in-1 (14″, 10) Hardware Maintenance Manual...
Page 39: Remove The Heat Sink
Quantity Thread 2.0±0.2 Go to https://support.lenovo.com/partslookup to look up the Lenovo part numbers of the following replacement parts: Heat sink Remove the speakers Make sure the following FRUs (CRUs) have been removed. “Remove the base cover assembly” on page 29 Step 1.
Page 40: Remove The Fingerprint Reader Board (For Selected Models)
Figure 9. 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 fingerprint reader board (for selected models) Make sure the following FRUs (or CRUs) have been removed.
Page 41: Remove The Fingerprint Reader Cable (For Selected Models)
Figure 11. Disconnect the fingerprint reader board cable and remove the fingerprint reader board Go to https://support.lenovo.com/partslookup to look up the Lenovo part numbers of the following replacement part: Fingerprint reader board Fingerprint reader bracket Remove the fingerprint reader cable (for selected models) Make sure the following FRUs (or CRUs) have been removed.
Page 42: Remove The Mcu Board (For Selected Models)
Figure 12. Disconnect and remove the fingerprint reader cable Go to https://support.lenovo.com/partslookup to look up the Lenovo part numbers of the following replacement part: Fingerprint reader board cable Remove the MCU board (for selected models) Make sure the following FRUs (or CRUs) have been removed.
Page 43 Table 7. Screws used to secure the MCU board Length (mm) Torque (kgf.cm) Quantity Thread 2.0±02 Go to to look up the Lenovo part numbers of the following https://support.lenovo.com/partslookup replacement part: MCU board Chapter 5 Removing a FRU or CRU...
Page 44: Remove The Mcu Board Cable (For Selected Models)
Disconnect and remove the MCU board cable. Figure 15. Disconnect and remove the MCU board cable Go to https://support.lenovo.com/partslookup to look up the Lenovo part numbers of the following replacement part: MCU board cable Remove the USB board bracket Make sure the following FRUs (or CRUs) have been removed.
Page 45: Remove The Usb Board
Length (mm) Torque (kgf.cm) Quantity Thread 2.0±0.2 Go to to look up the Lenovo part numbers of the following https://support.lenovo.com/partslookup replacement part: USB board bracket Remove the USB board Make sure the following FRUs (or CRUs) have been removed. “Remove the base cover assembly” on page 29 “Remove the USB board bracket”...
Page 46 Table 9. Screws used to secure the USB board Length (mm) Torque (kgf.cm) Quantity Label Thread M2.5 2.5±0.3 2.0±0.2 Go to https://support.lenovo.com/partslookup to look up the Lenovo part numbers of the following replacement part: USB board Lenovo Chromebook Plus 2-in-1 (14″, 10) Hardware Maintenance Manual...
Page 47: Remove The M.2 Solid-State Drive
Length (mm) Torque (kgf.cm) Quantity Thread 2.0±0.2 Go to to look up the Lenovo part numbers of the following https://support.lenovo.com/partslookup replacement part: M.2 solid-state drive Remove the Wi-Fi card Make sure the following FRUs (or CRUs) have been removed. “Remove the base cover assembly” on page 29 Step 1.
Page 48 Figure 21. Disconnect the antennas, remove one screw and the Wi-Fi card Table 11. Screw used to secure the Wi-Fi card Length (mm) Torque (kgf.cm) Quantity Thread 2.0±0.2 Step 3. Remove the Wi-Fi card thermal pad. Lenovo Chromebook Plus 2-in-1 (14″, 10) Hardware Maintenance Manual...
Page 49: Remove The Type-C Bracket
Figure 22. Remove the Wi-Fi card thermal pad 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 Wi-Fi card thermal pad Remove the type-C bracket Make sure the following FRUs (or CRUs) have been removed.
Page 50: Remove The Touchpad Cable
Length (mm) Torque (kgf.cm) Quantity Thread 2.0±0.2 Go to to look up the Lenovo part numbers of the following https://support.lenovo.com/partslookup replacement part: Type-C bracket Remove the touchpad cable Make sure the following FRUs (or CRUs) have been removed. “Remove the base cover assembly” on page 29 “Remove the battery pack”...
Page 51 Step 1. Peel off the touchpad mylar. Figure 25. Peel off the touchpad mylar Step 2. Peel back the touchpad cables. Figure 26. Peel back the touchpad cables Step 3. Remove seven screws and remove the touchpad. Chapter 5 Removing a FRU or CRU...
Page 52: Remove The System Board
Length (mm) Torque (kgf.cm) Quantity Thread M1.6 1.2±0.1 Go to to look up the Lenovo part numbers of the following https://support.lenovo.com/partslookup replacement part: Touchpad Touchpad mylar Remove the system board Make sure the following FRUs (or CRUs) have been removed.
Page 53 Figure 28. Disconnect all cables Step 2. Remove three screws and open the right hinge. Then, remove two screws and the system board with USB board cable. Figure 29. Remove the system board with USB board cable Table 14. Screws used to secure the system board Length (mm) Torque (kgf.cm) Quantity...
Page 54: Remove The Lcd Module
Figure 30. Remove the USB board cable Go to https://support.lenovo.com/partslookup to look up the Lenovo part numbers of the following replacement part: System board USB board cable Remove the LCD module Make sure the following FRUs (CRUs) have been removed.
Page 55 Figure 31. Disconnect cables Step 2. Remove six screws. Figure 32. Remove six screws Table 15. Screws used to secure the lower case Length (mm) Torque (kgf.cm) Quantity Thread M2.5 2.5±0.3 Step 3. Rotate the LCD module to an angle of more than 90 degrees and place the computer on a flat surface as shown.
Page 56: Remove The Upper Case (With Keyboard)
Figure 33. Remove the LCD module Go to https://support.lenovo.com/partslookup to look up the Lenovo part numbers of the following replacement part: LCD module Remove the upper case (with keyboard) Make sure the following FRUs (CRUs) have been removed. “Remove the base cover assembly” on page 29 “Remove the battery pack”...
Page 57 Go to to look up the Lenovo part numbers of the following https://support.lenovo.com/partslookup replacement part: Upper case (with keyboard) Chapter 5 Removing a FRU or CRU...
Page 58 Lenovo Chromebook Plus 2-in-1 (14″, 10) Hardware Maintenance Manual...
Page 59: Chapter 6. Label Locations
Labels attached to the base cover are country/region specific. Make sure to apply the appropriate labels to the replacement base cover. Table 16. All base cover labels Label Label description Applied country/region Label dimensions Rating label 150 mm x 20 mm © Copyright Lenovo 2025...
Page 60 Lenovo Chromebook Plus 2-in-1 (14″, 10) 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. © 2025 Lenovo.

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