Lenovo 81WE00DDCC Hardware Maintenance Manual
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Lenovo 81WE00DDCC Hardware Maintenance Manual

Lenovo 81WE00DDCC Hardware Maintenance Manual

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IdeaPad 3 (14", 05), IdeaPad 3 (15", 05),
IdeaPad 3 (17", 05) , IdeaPad Slim 3 (14", 05),
IdeaPad Slim 3 (15", 05), IdeaPad Slim 3 (17", 05)
Hardware Maintenance Manual

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Summary of Contents for Lenovo 81WE00DDCC

  • Page 1 IdeaPad 3 (14″, 05), IdeaPad 3 (15″, 05), IdeaPad 3 (17″, 05) , IdeaPad Slim 3 (14″, 05), IdeaPad Slim 3 (15″, 05), IdeaPad Slim 3 (17″, 05) Hardware Maintenance Manual...
  • Page 4 First Edition (December 2020) © Copyright Lenovo 2020.

  • Page 5: Table Of Contents

    For 17–inch models ... Trademarks ....lix Remove the battery pack ... © Copyright Lenovo 2020...
  • Page 6 IdeaPad 3 (14″, 05), IdeaPad 3 (15″, 05), IdeaPad 3 (17″, 05) , IdeaPad Slim 3 (14″, 05), IdeaPad Slim 3 (15″, 05), IdeaPad Slim 3 (17″, 05) Hardware Maintenance Manual...

  • Page 7: 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 8 IdeaPad 3 (14″, 05), IdeaPad 3 (15″, 05), IdeaPad 3 (17″, 05) , IdeaPad Slim 3 (14″, 05), IdeaPad Slim 3 (15″, 05), IdeaPad Slim 3 (17″, 05) Hardware Maintenance Manual...

  • Page 9: 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 10: 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 11: 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 12: 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 13 DANGER DANGER DANGER DANGER DANGER Chapter 1 Safety information...
  • Page 14 IdeaPad 3 (14″, 05), IdeaPad 3 (15″, 05), IdeaPad 3 (17″, 05) , IdeaPad Slim 3 (14″, 05), IdeaPad Slim 3 (15″, 05), IdeaPad Slim 3 (17″, 05) Hardware Maintenance Manual...
  • Page 15 PERIGO PERIGO PERIGO Chapter 1 Safety information...
  • Page 16 PERIGO PERIGO PERIGO PERIGO PERIGO IdeaPad 3 (14″, 05), IdeaPad 3 (15″, 05), IdeaPad 3 (17″, 05) , IdeaPad Slim 3 (14″, 05), IdeaPad Slim 3 (15″, 05), IdeaPad Slim 3 (17″, 05) Hardware Maintenance Manual...
  • Page 17 DANGER DANGER DANGER DANGER Chapter 1 Safety information...
  • Page 18 DANGER DANGER DANGER DANGER VORSICHT IdeaPad 3 (14″, 05), IdeaPad 3 (15″, 05), IdeaPad 3 (17″, 05) , IdeaPad Slim 3 (14″, 05), IdeaPad Slim 3 (15″, 05), IdeaPad Slim 3 (17″, 05) Hardware Maintenance Manual...
  • Page 19 VORSICHT VORSICHT VORSICHT VORSICHT Chapter 1 Safety information...
  • Page 20 VORSICHT VORSICHT VORSICHT IdeaPad 3 (14″, 05), IdeaPad 3 (15″, 05), IdeaPad 3 (17″, 05) , IdeaPad Slim 3 (14″, 05), IdeaPad Slim 3 (15″, 05), IdeaPad Slim 3 (17″, 05) Hardware Maintenance Manual...
  • Page 21 Chapter 1 Safety information...
  • Page 22 IdeaPad 3 (14″, 05), IdeaPad 3 (15″, 05), IdeaPad 3 (17″, 05) , IdeaPad Slim 3 (14″, 05), IdeaPad Slim 3 (15″, 05), IdeaPad Slim 3 (17″, 05) Hardware Maintenance Manual...
  • Page 23 Chapter 1 Safety information...
  • Page 24 IdeaPad 3 (14″, 05), IdeaPad 3 (15″, 05), IdeaPad 3 (17″, 05) , IdeaPad Slim 3 (14″, 05), IdeaPad Slim 3 (15″, 05), IdeaPad Slim 3 (17″, 05) Hardware Maintenance Manual...
  • Page 25 Chapter 1 Safety information...
  • Page 26 IdeaPad 3 (14″, 05), IdeaPad 3 (15″, 05), IdeaPad 3 (17″, 05) , IdeaPad Slim 3 (14″, 05), IdeaPad Slim 3 (15″, 05), IdeaPad Slim 3 (17″, 05) Hardware Maintenance Manual...
  • Page 27 Chapter 1 Safety information...
  • Page 28 IdeaPad 3 (14″, 05), IdeaPad 3 (15″, 05), IdeaPad 3 (17″, 05) , IdeaPad Slim 3 (14″, 05), IdeaPad Slim 3 (15″, 05), IdeaPad Slim 3 (17″, 05) Hardware Maintenance Manual...

  • Page 29: 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 30: Cru List

    • Damage caused by the improper insertion of a personal-computer card (PC card) or the installation of an incompatible card • Improper disc insertion or use of an external optical drive • Fuses blown by attachment of a non-supported device •...

  • Page 31: Chapter 3. Idetifying Frus (Crus)

    Chapter 3. Idetifying 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. 14–inch and 15–inch models LCD exploded view...
  • Page 32 Table 4. FRU (CRU) categories FRU (CRU) category Hinge cover Hinges LCD bezel LCD panel Removable tapes LCD cover Camera module Microphone rubber* *The adhesive tapes attached to the microphone rubber are not reusable. Replace the microphone rubber, if necessary. IdeaPad 3 (14″, 05), IdeaPad 3 (15″, 05), IdeaPad 3 (17″, 05) , IdeaPad Slim 3 (14″, 05), IdeaPad Slim 3 (15″, 05), IdeaPad Slim 3 (17″, 05) Hardware Maintenance Manual...
  • Page 33 Figure 2. 17–inch models exploded view Table 5. FRU (CRU) categories FRU (CRU) category Hinge cover Hinges LCD module Removable tapes LCD cover Camera module Microphone rubber* Chapter 3 Idetifying FRUs (CRUs)
  • Page 34 *The adhesive tapes attached to the microphone rubber are not reusable. Replace the microphone rubber, if necessary. Table 6. FRU (CRU) categories FRU (CRU) category Storage drive bracket Heat sink Memory module I/O board I/O board FFC Fingerprint reader FFC Solid-state drive standoff Power button Fingerprint reader...

  • 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 a FRU, as shown in the illustrations by the numbers in square callouts. 4. When removing a FRU, move it in the direction as shown by the arrow in the illustration. 5.

  • Page 37: For 17-Inch Models

    Pry up the latches and then remove the lower case. Figure 4. Pry up the latches and remove the lower case Go to https://support.lenovo.com/partslookup to look up the Lenovo part numbers of the following replacement part: Lower case For 17–inch models Make sure the computer has been shut down before servicing the computer.
  • Page 38 Figure 6. Pry up the latches and remove the lower case Go to https://support.lenovo.com/partslookup to look up the Lenovo part numbers of the following replacement part: Lower case IdeaPad 3 (14″, 05), IdeaPad 3 (15″, 05), IdeaPad 3 (17″, 05) , IdeaPad Slim 3 (14″, 05), IdeaPad Slim 3 (15″, 05), IdeaPad Slim 3...

  • Page 39: Remove The Battery Pack

    Remove the battery pack Make sure the following FRU (or CRU) has been removed. “Remove the lower case” on page 28 Step 1. Disconnect the cable from the system board. Attention: Use your fingernail to pull the connector to unplug it. Do not pull the cable. Figure 7.

  • Page 40: Remove The Storage Drive With Bracket

    Screw specifications Number of screws M2 x 5 Go to https://support.lenovo.com/partslookup to look up the Lenovo part numbers of the following replacement part: Battery pack Remove the storage drive with bracket Make sure the following FRU (or CRU) has been removed.
  • Page 41 Step 2. Remove four screws. Figure 10. Remove four screws Screw specifications Number of screws M2 x 5 Step 3. Disconnect the storage drive cable and remove the storage drive with bracket. Figure 11. Disconnect the storage drive cable and remove the storage drive with bracket Chapter 4 Removing a FRU or CRU...

  • Page 42: Remove The Heat Sink

    Figure 12. Remove four screws and remove the storage drive Screw specifications Number of screws M3 x 3 Go to to look up the Lenovo part numbers of the following https://support.lenovo.com/partslookup replacement parts: Storage drive Storage drive bracket Remove the heat sink Make sure the following FRU (or CRU) has been removed.
  • Page 43 Figure 14. Loosen four screws and remove the heat sink Screw specifications Number of screws M2 x 2.5 Go to to look up the Lenovo part numbers of the following https://support.lenovo.com/partslookup replacement part: Heat sink Chapter 4 Removing a FRU or CRU...

  • Page 44: Remove The Fan

    Remove the fan Make sure the following FRU (or CRU) has been removed. “Remove the lower case” on page 28 Step 1. Disconnect the battery pack cable from the system board. Attention: Do not pull the cable. Use your fingernail to disconnect the cable. Figure 15.

  • Page 45: Remove The Solid-State Drive

    M2 x 5 Figure 17. Remove three screws and remove the fan Go to https://support.lenovo.com/partslookup to look up the Lenovo part numbers of the following replacement parts: Remove the solid-state drive Make sure the following FRU (or CRU) has been removed.
  • Page 46 M2 x 2.5 Go to https://support.lenovo.com/partslookup to look up the Lenovo part numbers of the following replacement part: Solid-state drive IdeaPad 3 (14″, 05), IdeaPad 3 (15″, 05), IdeaPad 3 (17″, 05) , IdeaPad Slim 3 (14″, 05), IdeaPad Slim 3 (15″, 05), IdeaPad Slim 3...

  • Page 47: Remove The Coin-Cell Battery

    Disconnect the coin-cell battery cable and remove the coin-cell battery. Figure 21. Disconnect the coin-cell battery cable and remove the coin-cell battery Go to https://support.lenovo.com/partslookup to look up the Lenovo part numbers of the following replacement part: Chapter 4 Removing a FRU or CRU...

  • Page 48: Remove The Memory Module

    coin-cell battery Remove the memory module Make sure the following FRU (or CRU) has been removed. “Remove the lower case” on page 28 Step 1. Disconnect the battery pack cable. Attention: Do not pull the cable. Use your fingernail to disconnect the cable. Figure 22.

  • Page 49: Remove The Wi-Fi Card

    Go to to look up the Lenovo part numbers of the following https://support.lenovo.com/partslookup replacement part: Memory module Remove the Wi-Fi card Make sure the following FRU (or CRU) has been removed. “Remove the lower case” on page 28 Step 1.

  • Page 50: Remove The I/O Board

    Screw specifications Number of screws M2 x 2.5 Go to https://support.lenovo.com/partslookup to look up the Lenovo part numbers of the following replacement part: Wi-Fi card Remove the I/O board For 14–inch and 15–inch models Make sure the following FRU (or CRU) has been removed.

  • Page 51: For 17-Inch Models

    Remove the two screws, open the hinge, and then remove the I/O board. Figure 27. Remove the two screws, open the hinge, and then remove the I/O board Go to to look up the Lenovo part numbers of the following https://support.lenovo.com/partslookup replacement part: I/O board For 17–inch models...

  • Page 52: Remove The Fingerprint Reader

    Step 2. Remove the two screws, and then remove the I/O board. Figure 29. Remove the two screws, and then remove the I/O board Go to to look up the Lenovo part numbers of the following https://support.lenovo.com/partslookup replacement part: I/O board Remove the fingerprint reader Make sure the following FRU (or CRU) has been removed.

  • Page 53: Remove The System Board

    Remove the fingerprint reader. Figure 31. Remove the fingerprint reader Go to https://support.lenovo.com/partslookup to look up the Lenovo part numbers of the following replacement part: Fingerprint reader Remove the system board Make sure the following FRUs (or CRUs) have been removed.
  • Page 54 “Remove the heat sink” on page 34 “Remove the fan” on page 36 “Remove the solid-state drive” on page 37 “Remove the coin-cell battery” on page 39 “Remove the memory module” on page 40 “Remove the Wi-Fi card” on page 41 Step 1.

  • Page 55: Use A Golden Key U1 Tool To Flash-Write Key Id Information

    Step 3. Remove the system board. Figure 34. Remove the system board Go to to look up the Lenovo part numbers of the following https://support.lenovo.com/partslookup replacement part: System board Use a Golden Key U1 tool to flash-write key id information...
  • Page 56 Step 1. Disconnect battery pack cables, EDP cable, and antenna cables. Figure 35. Disconnect battery pack cables, EDP cable, and antenna cables Step 2. Remove four screws. Figure 36. Remove four screws Screw specifications Number of screws M2.5 x 5 IdeaPad 3 (14″, 05), IdeaPad 3 (15″, 05), IdeaPad 3 (17″, 05) , IdeaPad Slim 3 (14″, 05), IdeaPad Slim 3 (15″, 05), IdeaPad Slim 3 (17″, 05) Hardware Maintenance Manual...
  • Page 57 Attention: When disassembling the upper case, handle the LCD module and upper case with care. Figure 38. Remove the upper case Go to https://support.lenovo.com/partslookup to look up the Lenovo part numbers of the following replacement part: Chapter 4 Removing a FRU or CRU...

  • Page 58: Remove The Hinge Cover

    “Remove the upper case (with keyboard)” on page 47 Step 1. Remove the hinge cover. Figure 39. Remove the hinge cover Go to to look up the Lenovo part numbers of the following https://support.lenovo.com/partslookup replacement parts: Hinge cover Remove the LCD bezel Make sure the following FRU (or CRU) has been removed.

  • Page 59: Remove The Lcd Panel

    The lower side of the LCD bezel is fixed to the LCD panel with adhesive tape. Detach with care. Go to https://support.lenovo.com/partslookup to look up the Lenovo part numbers of the following replacement part: LCD bezel Remove the LCD panel For 14–inch and 15–inch models...
  • Page 60 Step 1. Remove the removable tapes. Figure 41. Remove the removable tapes Step 2. Carefully lift the LCD panel from the LCD cover. Figure 42. Carefully lift the LCD panel from the LCD cover IdeaPad 3 (14″, 05), IdeaPad 3 (15″, 05), IdeaPad 3 (17″, 05) , IdeaPad Slim 3 (14″, 05), IdeaPad Slim 3 (15″, 05), IdeaPad Slim 3 (17″, 05) Hardware Maintenance Manual...

  • Page 61: For 17-Inch Models

    Step 3. Disconnect the EDP cable. Figure 43. Disconnect the EDP cable Go to to look up the Lenovo part numbers of the following https://support.lenovo.com/partslookup replacement part: LCD panel for 14–inch and 15–inch models EDP cable For 17–inch models Make sure the following FRUs (or CRUs) have been removed.
  • Page 62 Step 1. Remove ten screws. Figure 44. Remove 10 screws Screw specifications Number of screws M2 x 2.2 M2 x 2.5 Step 2. Carefully lift the LCD panel from the LCD cover. Figure 45. Carefully lift the LCD panel from the LCD cover IdeaPad 3 (14″, 05), IdeaPad 3 (15″, 05), IdeaPad 3 (17″, 05) , IdeaPad Slim 3 (14″, 05), IdeaPad Slim 3 (15″, 05), IdeaPad Slim 3 (17″, 05) Hardware Maintenance Manual...

  • Page 63: Remove The Hinges ( For 14-Inch And 15-Inch Models Only)

    Step 3. Disconnect the EDP cable. Figure 46. Disconnect the EDP cable Go to to look up the Lenovo part numbers of the following https://support.lenovo.com/partslookup replacement part: LCD panel EDP cable Remove the hinges ( for 14–inch and 15–inch models only) Make sure the following FRUs (or CRUs) have been removed.
  • Page 64 Remove hinges. Figure 48. Remove hinges Go to https://support.lenovo.com/partslookup to look up the Lenovo part numbers of the following replacement parts: Hinges LCD cover IdeaPad 3 (14″, 05), IdeaPad 3 (15″, 05), IdeaPad 3 (17″, 05) , IdeaPad Slim 3 (14″, 05), IdeaPad Slim 3 (15″, 05), IdeaPad Slim 3...

  • Page 65: Remove The Microphone Rubber

    Remove the microphone rubber. Figure 49. Remove the microphone rubber Go to https://support.lenovo.com/partslookup to look up the Lenovo part numbers of the following replacement part: Microphone rubber Remove the camera module Make sure the following FRUs (or CRUs) have been removed.
  • Page 66 Step 1. Disconnect the camera module cable and remove the camera module. Figure 50. Disconnect the camera module cable and remove the camera module Go to to look up the Lenovo part numbers of the following https://support.lenovo.com/partslookup replacement part: Camera module IdeaPad 3 (14″, 05), IdeaPad 3 (15″, 05), IdeaPad 3 (17″, 05) , IdeaPad Slim 3 (14″, 05), IdeaPad Slim 3 (15″, 05), IdeaPad Slim 3...

  • Page 67: Trademarks

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

This manual is also suitable for:

Ideapad slim 3Ideapad 381wc0073uk

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