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Lenovo IdeaPad C340-14IML Hardware Maintenance Manual
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Lenovo IdeaPad C340-14IML Hardware Maintenance Manual

Lenovo IdeaPad C340-14IML Hardware Maintenance Manual

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Hardware Maintenance Manual
Lenovo IdeaPad C340-14IML/Lenovo IdeaPad FLEX-14IML

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Summary of Contents for Lenovo IdeaPad C340-14IML

  • Page 1 Hardware Maintenance Manual Lenovo IdeaPad C340-14IML/Lenovo IdeaPad FLEX-14IML...
  • Page 3 Hardware Maintenance Manual Lenovo IdeaPad C340-14IML/Lenovo IdeaPad FLEX-14IML...
  • Page 4 First Edition (August 2019) © Copyright Lenovo 2019. LIMITED AND RESTRICTED RIGHTS NOTICE: If data or software is delivered pursuant to a General Services Administration “GSA” contract, use, reproduction, or disclosure is subject to restrictions set forth in Contract No. GS-...

  • Page 5: Table Of Contents

    Trademarks ....lvii General guidelines ....Remove the lower case ... . © Copyright Lenovo 2019...
  • 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 2019...

  • 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

    Before checking problems with the computer, determine whether the damage is covered under the warranty by referring to the following list: The following are not covered under warranty: • LCD panel cracked from the application of excessive force or from being dropped © Copyright Lenovo 2019...

  • Page 28: Checking The Ac Power Adapter

    • 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 • Damage caused by the improper insertion of a personal-computer card (PC card) or the installation of an incompatible card •...

  • Page 29: Chapter 3. Identifying Frus (Crus)

    • FRUs: Refer to parts that must be installed or replaced only by trained service technicians. If customers choose to replace the FRUs by themselves, the product warranty might be affected. The exploded illustrations help Lenovo service technicians identify FRUs or CRUs that they may need to replace when servicing a customer’s computer.
  • Page 30 Major FRUs (CRUs) Table 1. Major FRUs (CRUs) FRUs (CRUs) description Self-service CRU Optional-service CRU LCD module Upper case (with keyboard) System board Hardware Maintenance Manual...
  • Page 31 Table 1. Major FRUs (CRUs) (continued) Thermal module Memory module Memory module shielding M.2 Solid-state drive (SSD) M.2 2242 Solid-state drive bracket* ac power adapter Power cord* Wi-Fi card Wi-Fi card sponge I/O board Fingerprint board Fingerprint board bracket Battery pack Speakers Lower case * for selected models...
  • Page 32 LCD FRUs (CRUs) Table 2. LCD FRUs (CRUs) FRUs (CRUs) description Self-service CRU Optional-service CRU Strip cover LCD panel Removable tapes Hardware Maintenance Manual...
  • Page 33 Hinge rubbers LCD cover Miscellaneous parts Table 3. Miscellaneous parts FRUs (CRUs) description Self-service CRU Optional-service CRU Screw kit Note: For detailed FRUs information, including part numbers, descriptions, and substitution part numbers, go to: https://support.lenovo.com/partslookup Chapter 3 Identifying FRUs (CRUs)
  • Page 34 Hardware Maintenance Manual...

  • Page 35: Chapter 4. Removing A Fru Or Cru

    5. To install a new FRU in place, perform the removal procedure in reverse and follow any notes that pertain to replacement. 6. When replacing a FRU, carefully retain and reuse all screws. If screws are missing, look up the Lenovo parts numbers by visiting https://support.lenovo.com/partslookup...
  • Page 36 Figure 1. Remove the 10 screws Screw specifications Number of screws M2.0 x 6 Step 2. Insert a pry tool to separate the lower case from upper case. Figure 2. Separate the lower case from upper case Step 3. Remove the lower case. Hardware Maintenance Manual...

  • Page 37: Remove The Battery Pack

    Figure 3. Remove the lower case Remove the battery pack Make sure the following FRU (or CRU) has been removed. “Remove the lower case” on page 29 Step 1. Detach the battery pack connector from the system board. Figure 4. Detach the battery pack connector Attention: Use your fingernails to unplug the battery pack connector.

  • Page 38: Remove The Wi-Fi Card

    Figure 5. Remove the 4 screws Screw specifications Number of screws M2.0 x 3 Step 3. Remove the battery pack. Figure 6. Remove the battery pack Remove the Wi-Fi card Make sure the following FRUs (or CRUs) have been removed. “Remove the lower case”...
  • Page 39 Figure 7. Detach the I/O board connector Step 2. Peel off the sponge on the Wi-Fi card. Figure 8. Peel off the sponge Step 3. Detach the main and auxiliary antenna cable connectors. Chapter 4 Removing a FRU or CRU...
  • Page 40 Figure 9. Detach the connectors Step 4. Remove 1 screw. Figure 10. Remove 1 screw Number of screws Screw specifications M2.0 x 3 Step 5. Remove the Wi-Fi card by pulling it away from the slot. Hardware Maintenance Manual...

  • Page 41: Remove The M.2 Solid-State Drive

    Figure 11. Remove the Wi-Fi card Remove the M.2 solid-state drive The M.2 solid-state drive has two types: 2242 and 2280. The removal steps are slightly different. Make sure the following FRUs (or CRUs) have been removed. “Remove the lower case” on page 29 “Remove the battery pack”...
  • Page 42 Figure 13. Remove 1 screw (for 2280) Screw specifications Number of screws M2.0 x 3 M2.0 x 2.5 Step 2. Remove the M.2 solid-state drive by pulling it away from the slot. Figure 14. Remove the M.2 solid-state drive Step 3. Remove the M.2 solid-state drive bracket.

  • Page 43: Remove The Memory Module

    Figure 15. Remove the M.2 solid-state drive bracket Remove the memory module Make sure the following FRUs (or CRUs) have been removed. “Remove the lower case” on page 29 “Remove the battery pack” on page 31 Step 1. Remove the memory module shielding. Figure 16.

  • Page 44: Remove The Fingerprint Board

    Figure 17. Remove the memory module Remove the fingerprint board Note: The fingerprint board is available on selected models. Make sure the following FRUs (or CRUs) have been removed. “Remove the lower case” on page 29 “Remove the battery pack” on page 31 Step 1.
  • Page 45 Figure 19. Remove 1 screw Screw specifications Number of screws M2.0 x 3 Step 3. Remove the fingerprint board bracket. Figure 20. Remove the fingerprint board bracket Step 4. Remove the fingerprint board. Chapter 4 Removing a FRU or CRU...

  • Page 46: Remove The Speakers

    Figure 21. Remove the fingerprint board Remove the speakers Make sure the following FRUs (CRUs) have been removed. “Remove the lower case” on page 29 “Remove the battery pack” on page 31 Step 1. Detach the speaker connector from the system board. Figure 22.

  • Page 47: Remove The I/O Board

    Figure 23. Remove the speakers Remove the I/O board Make sure the following FRUs (or CRUs) have been removed. “Remove the lower case” on page 29 “Remove the battery pack” on page 31 Step 1. Detach the I/O board connector from the system board. Figure 24.

  • Page 48: Remove The Thermal Module

    Figure 25. Remove the 2 screws Screw specifications Number of screws M2.0 x 3 Step 3. Remove the I/O board. Figure 26. Remove the I/O board Remove the thermal module The thermal modules are different for UMA and DIS. Make sure the following FRUs (or CRUs) have been removed. “Remove the lower case”...
  • Page 49 Figure 27. Detach the connectors Step 2. Remove the screws that secure the thermal module to the system board and upper case. Figure 28. Remove the 8 screws (for UMA) Figure 29. Remove the 10 screws (for DIS) Chapter 4 Removing a FRU or CRU...

  • Page 50: Remove The System Board

    Screw specifications Number of screws M2.0 x 3 8 (for UMA) / 10 (for DIS) Step 3. Remove the thermal module. Figure 30. Remove the thermal module Remove the system board Make sure the following FRUs (or CRUs) have been removed. “Remove the lower case”...
  • Page 51 Figure 31. Detach the connectors Step 2. Remove 1 screw that secure the system board to upper case. Then, remove the 2 screws that secure the right hinge to upper case. Figure 32. Remove the 3 screws Number of screws Screw specifications M2.0 x 3 M2.5 x 4.5...

  • Page 52: Remove The Dc-In Cable

    Figure 33. Open the right hinge Step 4. Carefully remove the system board. Figure 34. Remove the system board Remove the dc-in cable Make sure the following FRUs (CRUs) have been removed: “Remove the lower case” on page 29 “Remove the battery pack” on page 31 Step 1.
  • Page 53 Figure 35. Detach the connector and remove the 2 screws Screw specifications Number of screws M2.5 x 4.5 Step 2. Open the right hinge. Figure 36. Open the right hinge Step 3. Remove the dc-in cable. Figure 37. Remove the dc-in cable Chapter 4 Removing a FRU or CRU...

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

    Remove the upper case (with keyboard) Make sure the following FRUs (CRUs) have been removed. “Remove the lower case” on page 29 “Remove the battery pack” on page 31 “Remove the Wi-Fi card” on page 32 Step 1. Detach the EDP cable connector. Figure 38.

  • Page 55: Disassemble The Lcd Module

    Figure 40. Open the hinges Step 4. Slowly and carefully lift up the upper case. Figure 41. Remove the upper case (with keyboard) Disassemble the LCD module The LCD module as a whole is not a FRU. Instead, it contains FRUs as its components. Before disassembling the LCD module, make sure it has been detached from the upper case.
  • Page 56 Figure 42. Remove the strip cover Step 2. Remove the 4 screws. Then, remove the hinge rubbers that secure the EDP cable and antenna cables. Figure 43. Remove the 4 screws and hinge rubbers Screw specifications Number of screws M1.6 x 2 Step 3.

  • Page 57: Remove The Edp Cable, Camera Board, And Microphone Board

    Figure 44. Pull out the removable tapes Step 4. Remove the LCD panel. Figure 45. Remove the LCD panel Remove the EDP cable, camera board, and microphone board Make sure the following FRUs (or CRUs) have been removed. “Remove the lower case” on page 29 “Remove the battery pack”...
  • Page 58 Figure 46. Detach the connectors Step 2. Remove the EDP cable. Figure 47. Remove the EDP cable Step 3. Peel off the conductive tape that secures the camera board and microphone board. Hardware Maintenance Manual...

  • Page 59: Remove The Hinges

    Figure 48. Peel off the conductive tape Step 4. Lift up the camera board and microphone board. Then, detach the camera cable connector from the microphone board. Note: The camera board and microphone board are fragile and easily-bent. Take care when removing the boards.
  • Page 60 Figure 50. Remove the 6 screws Screw specifications Number of screws M2 x 2 Step 2. Remove the hinges. Figure 51. Remove the hinges Hardware Maintenance Manual...

  • Page 61: Appendix A. Label Locations

    Table 4. All base cover labels Label Label description Applied country/region Label dimensions Rating POD label all country/region 100 mm x 30 mm GML label all country/region 16 mm x 22.5 mm © Copyright Lenovo 2019...
  • Page 62 Hardware Maintenance Manual...

  • Page 63: Trademarks

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

This manual is also suitable for:

Ideapad flex-14iml

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