Lenovo IdeaPad S740 Hardware Maintenance Manual
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Lenovo IdeaPad S740 Hardware Maintenance Manual

Lenovo IdeaPad S740 Hardware Maintenance Manual

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Lenovo IdeaPad S740 and Lenovo Yoga S740
Hardware Maintenance Manual

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Summary of Contents for Lenovo IdeaPad S740

  • Page 1 Lenovo IdeaPad S740 and Lenovo Yoga S740 Hardware Maintenance Manual...
  • Page 2 First Edition (August 2019) © Copyright Lenovo 2019.

  • Page 3: Table Of Contents

    Remove the TOF sensor cable ..Locate FRUs and CRUs ... Trademarks ....xlvii © Copyright Lenovo 2019...
  • Page 4 Lenovo IdeaPad S740 and Lenovo Yoga S740 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 2019...
  • Page 6 Lenovo IdeaPad S740 and Lenovo Yoga S740 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 © 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

    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 IdeaPad S740 and Lenovo Yoga S740 Hardware Maintenance Manual...
  • Page 11 DANGER DANGER DANGER DANGER DANGER Chapter 1 Safety information...
  • Page 12 Lenovo IdeaPad S740 and Lenovo Yoga S740 Hardware Maintenance Manual...
  • Page 13 PERIGO PERIGO PERIGO Chapter 1 Safety information...
  • Page 14 PERIGO PERIGO PERIGO PERIGO PERIGO Lenovo IdeaPad S740 and Lenovo Yoga S740 Hardware Maintenance Manual...
  • Page 15 DANGER DANGER DANGER DANGER Chapter 1 Safety information...
  • Page 16 DANGER DANGER DANGER DANGER VORSICHT Lenovo IdeaPad S740 and Lenovo Yoga S740 Hardware Maintenance Manual...
  • Page 17 VORSICHT VORSICHT VORSICHT VORSICHT Chapter 1 Safety information...
  • Page 18 VORSICHT VORSICHT VORSICHT Lenovo IdeaPad S740 and Lenovo Yoga S740 Hardware Maintenance Manual...
  • Page 19 Chapter 1 Safety information...
  • Page 20 Lenovo IdeaPad S740 and Lenovo Yoga S740 Hardware Maintenance Manual...
  • Page 21 Chapter 1 Safety information...
  • Page 22 Lenovo IdeaPad S740 and Lenovo Yoga S740 Hardware Maintenance Manual...
  • Page 23 Chapter 1 Safety information...
  • Page 24 Lenovo IdeaPad S740 and Lenovo Yoga S740 Hardware Maintenance Manual...
  • Page 25 Chapter 1 Safety information...
  • Page 26 Lenovo IdeaPad S740 and Lenovo Yoga S740 Hardware Maintenance Manual...

  • Page 27: 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 2019...

  • Page 28: Cru List

    Table 1. Model: Lenovo Yoga S740-14IIL (Machine type: 81RS) Type ac power adapter self-service power cord self-service Table 2. Model: Lenovo IdeaPad S740-14IIL (Machine type: 81RT) Type ac power adapter self-service power cord self-service Lenovo IdeaPad S740 and Lenovo Yoga S740 Hardware Maintenance Manual...

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

    Chapter 3. 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. Lenovo IdeaPad S740-14IIL/Lenovo Yoga S740-14IIL exploded view Table 3.
  • Page 30 Speaker module Battery mylar System board System board mylar Hinge cap Strip cover L Hinge L LCD module EDP cable Mic FPC Mic board L Camera FPC Mic board R Camera Lenovo IdeaPad S740 and Lenovo Yoga S740 Hardware Maintenance Manual...

  • Page 31: 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 32: Remove The Lower Case

    Make sure the computer has been shut down before servicing the computer. Step 1. Place the computer upside down on a flat surface. Step 2. Remove nine screws. Figure 2. Remove nine screws Lenovo IdeaPad S740 and Lenovo Yoga S740 Hardware Maintenance Manual...

  • Page 33: Remove The Battery Pack

    Remove the lower case. Figure 3. Remove the lower case Go to https://support.lenovo.com/partslookup to look up the Lenovo part number of the following replacement part: Lower case Remove the battery pack Make sure the following FRU (or CRU) has been removed.
  • Page 34 Figure 4. Disconnect the cable Step 2. Remove six screws. Figure 5. Remove six screws Screw specifications Number of screws M2 x 4 Step 3. Remove the battery pack. Lenovo IdeaPad S740 and Lenovo Yoga S740 Hardware Maintenance Manual...

  • Page 35: Remove The Speakers

    Figure 6. Remove the battery pack Go to to look up the Lenovo part number of the following replacement https://support.lenovo.com/partslookup part: Battery pack Remove the speakers Make sure the following FRUs (CRUs) have been removed. “Remove the lower case” on page 26 “Remove the battery pack”...

  • Page 36: Remove The Wlan Card

    Step 2. Release speaker cable from system board hooks and carefully remove the speakers. Figure 8. Release the cable and remove the speakers Go to to look up the Lenovo part number of the following replacement https://support.lenovo.com/partslookup part: Speakers Remove the WLAN card Make sure the following FRUs (CRUs) have been removed.
  • Page 37 Figure 9. Peel off the mylar tape Step 2. Disconnect the wireless antennas cable. Figure 10. Disconnect the wireless cable Step 3. Remove one screw. Chapter 4 Removing a FRU or CRU...

  • Page 38: Remove The Solid-State Drive

    Pull the WLAN card out of the slot. Figure 12. Pull the WLAN card Go to https://support.lenovo.com/partslookup to look up the Lenovo part number of the following replacement part: WLAN card Remove the solid-state drive Make sure the following FRUs (or CRUs) have been removed.
  • Page 39 M2 x 3 Step 2. Pull the solid-state drive out of the slot. Figure 14. Pull the solid-state drive Go to to look up the Lenovo part number of the following replacement https://support.lenovo.com/partslookup part: Solid-state drive Chapter 4 Removing a FRU or CRU...

  • Page 40: Remove The Thermal Module

    “Remove the battery pack” on page 27 Step 1. Remove six screws. Figure 15. Remove six screws Screw specifications Number of screws M2 x 4 Step 2. Loosen five screws. Figure 16. Loosen five screws Lenovo IdeaPad S740 and Lenovo Yoga S740 Hardware Maintenance Manual...
  • Page 41 Figure 17. Disconnect the cables Step 5. Remove the thermal module carefully. Figure 18. Remove the thermal module Go to https://support.lenovo.com/partslookup to look up the Lenovo part number of the following replacement part: Thermal module Chapter 4 Removing a FRU or CRU...

  • Page 42: Remove The System Board

    Remove five screws. Figure 19. Remove five screws Screw specifications Number of screws M2 x 4 Step 2. Disconnect all cables connected to the system board. Then, remove the system board. Lenovo IdeaPad S740 and Lenovo Yoga S740 Hardware Maintenance Manual...

  • Page 43: Remove The Upper Case

    Figure 20. Disconnect cables and remove system board Go to to look up the Lenovo part number of the following replacement https://support.lenovo.com/partslookup part: System board Remove the upper case Make sure the following FRUs (CRUs) have been removed. “Remove the lower case” on page 26 “Remove the battery pack”...

  • Page 44: Remove The I/O Board

    Remove the upper case. Figure 22. Remove the upper case Go to https://support.lenovo.com/partslookup to look up the Lenovo part number of the following replacement part: Upper case Remove the I/O board Make sure the following FRUs (or CRUs) have been removed.
  • Page 45 “Remove the lower case” on page 26 “Remove the battery pack” on page 27 “Remove the WLAN card” on page 30 “Remove the solid-state drive” on page 32 “Remove the system board” on page 36 “Remove the upper case” on page 37 Step 1.

  • Page 46: Remove The Lcd Panel

    Remove the I/O board. Figure 25. Remove the I/O board Go to https://support.lenovo.com/partslookup to look up the Lenovo part number of the following replacement part: I/O board Remove the LCD panel Make sure the following FRUs (CRUs) have been removed.
  • Page 47 Figure 26. Remove the hinge cap Step 2. Remove two screws. Figure 27. Remove two screws Screw specifications Number of screws M2 x 3 Step 3. Release EDP cable from the hooks and pull the adhesive tapes. Then, remove the LCD panel. Chapter 4 Removing a FRU or CRU...

  • Page 48: Remove The Camera And Mic Board

    Figure 28. Remove the LCD panel Go to to look up the Lenovo part number of the following replacement https://support.lenovo.com/partslookup part: LCD module Remove the camera and mic board Make sure the following FRUs (or CRUs) have been removed. “Remove the lower case” on page 26 “Remove the battery pack”...
  • Page 49 Figure 29. Peel off the adhesive tape Step 2. Remove the MIC board and EDP cables. Figure 30. Remove the MIC board and EDP cables Step 3. Remove the camera. Chapter 4 Removing a FRU or CRU...

  • Page 50: Remove The Hinge

    Figure 31. Remove the camera Go to to look up the Lenovo part number of the following replacement https://support.lenovo.com/partslookup part: Camera and MIC board Remove the hinge Make sure the following FRUs (or CRUs) have been removed. “Remove the lower case” on page 26 “Remove the battery pack”...

  • Page 51: Remove The Tof Sensor Cable

    Step 2. Remove the hinges. Figure 33. Remove the hinges Go to https://support.lenovo.com/partslookup to look up the Lenovo part number of the following replacement part: Hinges Remove the TOF sensor cable Make sure the following FRUs (or CRUs) have been removed.
  • Page 52 Remove the TOF sensor cable. Figure 34. Remove the TOF sensor cable Go to https://support.lenovo.com/partslookup to look up the Lenovo part number of the following replacement part: TOF sensor cable Lenovo IdeaPad S740 and Lenovo Yoga S740 Hardware Maintenance Manual...

  • Page 53: Trademarks

    Trademarks LENOVO and the LENOVO logo are trademarks of Lenovo. All other trademarks are the property of their respective owners. © 2019 Lenovo.

This manual is also suitable for:

Yoga s740

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