Lenovo IdeaPad S740-15IRH Hardware Maintenance Manual
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Lenovo IdeaPad S740-15IRH Hardware Maintenance Manual

Lenovo IdeaPad S740-15IRH Hardware Maintenance Manual

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Lenovo IdeaPad S740-15IRH
Hardware Maintenance Manual

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Summary of Contents for Lenovo IdeaPad S740-15IRH

  • Page 1 Lenovo IdeaPad S740-15IRH Hardware Maintenance Manual...
  • Page 2 First Edition (August 2019) © Copyright Lenovo 2019.

  • Page 3: Table Of Contents

    CRU ....25 Service tools ....© Copyright Lenovo 2019...
  • Page 4 Lenovo IdeaPad S740-15IRH 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 S740-15IRH 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 S740-15IRH Hardware Maintenance Manual...
  • Page 11 DANGER DANGER DANGER DANGER DANGER Chapter 1 Safety information...
  • Page 12 Lenovo IdeaPad S740-15IRH Hardware Maintenance Manual...
  • Page 13 PERIGO PERIGO PERIGO Chapter 1 Safety information...
  • Page 14 PERIGO PERIGO PERIGO PERIGO PERIGO Lenovo IdeaPad S740-15IRH Hardware Maintenance Manual...
  • Page 15 DANGER DANGER DANGER DANGER Chapter 1 Safety information...
  • Page 16 DANGER DANGER DANGER DANGER VORSICHT Lenovo IdeaPad S740-15IRH Hardware Maintenance Manual...
  • Page 17 VORSICHT VORSICHT VORSICHT VORSICHT Chapter 1 Safety information...
  • Page 18 VORSICHT VORSICHT VORSICHT Lenovo IdeaPad S740-15IRH Hardware Maintenance Manual...
  • Page 19 Chapter 1 Safety information...
  • Page 20 Lenovo IdeaPad S740-15IRH Hardware Maintenance Manual...
  • Page 21 Chapter 1 Safety information...
  • Page 22 Lenovo IdeaPad S740-15IRH Hardware Maintenance Manual...
  • Page 23 Chapter 1 Safety information...
  • Page 24 Lenovo IdeaPad S740-15IRH Hardware Maintenance Manual...
  • Page 25 Chapter 1 Safety information...
  • Page 26 Lenovo IdeaPad S740-15IRH 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

    • 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: Lenovo IdeaPad S740-15IRH/Lenovo IdeaPad S740-15IRH Touch (Machine type: 81NY/81NW) Type ac power adapter...

  • Page 29: Chapter 3. Identifying Fru (Cru)

    Chapter 3. Identifying FRU (CRU) Locate FRU and CRU The exploded illustrations help Lenovo service technicians identify FRU or CRU that they may need to replace when servicing a customer’s computer. Figure 1. Lenovo IdeaPad S740-15IRH/Lenovo IdeaPad S740-15IRH Touch exploded view...
  • Page 30 Thermal module Battery Lower case Speaker module Solid-state drive System board Upper case Touchpad with cable DC-in cable Audio board LED board Left strip cover LCD module Left hinge MIC FPC Camera module Camera shutter Lenovo IdeaPad S740-15IRH 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

    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 eight screws. Figure 2. Remove eight screws Lenovo IdeaPad S740-15IRH Hardware Maintenance Manual...

  • Page 33: Remove The Battery Pack

    Pry up the latches and then remove the lower case. Figure 3. Pry up the latches and 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: Remove The Wlan Card

    Remove the battery pack. Figure 5. Remove the battery pack Go to https://support.lenovo.com/partslookup to look up the Lenovo part number of the following replacement part: Battery pack Remove the WLAN card Make sure the following FRU (or CRU) have been removed.
  • Page 35 M2.0 x 3 Step 2. Pull the WLAN card out of the slot. Figure 7. Pull the WLAN card out of the slot Go to to look up the Lenovo part number of the following replacement https://support.lenovo.com/partslookup part: WLAN card Chapter 4...

  • Page 36: Remove The Solid-State Drive

    Remove one screw. Figure 8. Remove one screw Screw specifications Number of screws M2.0 x 3 Step 2. Pull the solid-state drive out of the slot. Figure 9. Pull the solid-state drive out of the slot Lenovo IdeaPad S740-15IRH Hardware Maintenance Manual...

  • Page 37: Remove The Thermal Module

    Go to to look up the Lenovo part number of the following replacement https://support.lenovo.com/partslookup part: Solid-state drive Remove the thermal module Make sure the following FRU (or CRU) have been removed. “Remove the lower case” on page 26 “Remove the battery pack” on page 27 Step 1.

  • Page 38: Remove The Speakers

    Step 3. Remove the thermal module. Figure 12. 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 Remove the speakers Make sure the following FRU (CRU) have been removed.
  • Page 39 Figure 13. Disconnect the cable and release the cables from hooks Step 2. Carefully remove the speakers. Figure 14. Remove the speakers Go to to look up the Lenovo part number of the following replacement https://support.lenovo.com/partslookup part: Speakers Chapter 4...

  • Page 40: Remove The Audio Board

    “Remove the battery pack” on page 27 Step 1. Disconnect the audio board connectors. Figure 15. Disconnect the audio board connectors Step 2. Remove one screw. Figure 16. Remove one screw Screw specifications Number of screws M2.3 x 1 Lenovo IdeaPad S740-15IRH Hardware Maintenance Manual...

  • Page 41: Remove The Fingerprint Module

    Step 3. Remove the audio board. Figure 17. Remove the audio board Go to to look up the Lenovo part number of the following replacement https://support.lenovo.com/partslookup part: Audio board Remove the fingerprint module Make sure the following FRU (or CRU) have been removed.
  • Page 42 Step 2. Remove one screw and then remove the fingerprint bracket. Figure 19. Remove one screw and the fingerprint bracket Screw specifications Number of screws M2 x 3 Step 3. Remove the fingerprint module. Lenovo IdeaPad S740-15IRH Hardware Maintenance Manual...

  • Page 43: Remove The Keyboard Fpc And Touchpad Fpc

    Figure 20. Remove the fingerprint module Go to to look up the Lenovo part number of the following replacement https://support.lenovo.com/partslookup part: Fingerprint module Remove the keyboard FPC and touchpad FPC Make sure the following FRU (or CRU) have been removed.

  • Page 44: Remove The Upper Case (With Keyboard)

    Go to to look up the Lenovo part number of the following replacement https://support.lenovo.com/partslookup part: Keyboard FPC and touchpad FPC Remove the upper case (with keyboard) Make sure the following FRU (CRU) have been removed. “Remove the lower case” on page 26 “Remove the battery pack”...

  • Page 45: Remove The System Board

    Step 3. Remove the upper case. Figure 24. Remove the upper case Go to to look up the Lenovo part number of the following replacement https://support.lenovo.com/partslookup part: Upper case (with keyboard) Remove the system board Make sure the following FRU (or CRU) have been removed.

  • Page 46: Remove The Touch Pad With Cable

    Number of screws M2 x 6 M2 x 3 Go to https://support.lenovo.com/partslookup to look up the Lenovo part number of the following replacement part: System board Remove the touch pad with cable Make sure the following FRU (or CRU) have been removed.

  • Page 47: Remove The Lcd Panel

    Step 2. Pivot the upper case (with keyboard) and remove the touchpad with cable. Figure 27. Remove the touchpad with cable Go to to look up the Lenovo part number of the following replacement https://support.lenovo.com/partslookup part: Touchpad with cable Remove the LCD panel Make sure the following FRU (CRU) have been removed.
  • Page 48 Figure 29. Remove two screws and strip covers Screw specifications Number of screws M2 x 2 Step 3. Pull out the LCD panel adhesive. Then, turn the LCD panel so that the rear side of the LCD panel is facing up. Lenovo IdeaPad S740-15IRH Hardware Maintenance Manual...

  • Page 49: Notice For The Hinge Cap Assembly

    Step 4. Disconnect the cables from the LCD panel. Figure 31. Disconnect the cables from the LCD panel Go to to look up the Lenovo part number of the following replacement https://support.lenovo.com/partslookup part: LCD panel Notice for the hinge cap assembly To avoid sink in between the hinge cap and the LCD panel, follow the below procedure.
  • Page 50 Press down on the hinge cap at the indicated locations beginning from left to right. Figure 33. Press down on the hinge cap Step 3. Press the hinges towards the front and secure it by applying manual pressure. Lenovo IdeaPad S740-15IRH Hardware Maintenance Manual...

  • Page 51: Remove The Camera Module And Mic Board

    Figure 34. Secure the hinges Step 4. Check the hinge cap for any appearance of sink. If the sink is visible, flip the LCD panel slightly and press down on the hinge cap. Figure 35. Press down on the hinge cap Remove the camera module and MIC board Make sure the following FRU (or CRU) have been removed.
  • Page 52 Figure 36. Disconnect the camera connector Step 2. Remove the MIC board. Figure 37. Remove the MIC board. Step 3. Remove the camera module and then remove the LED FPC. Lenovo IdeaPad S740-15IRH Hardware Maintenance Manual...

  • Page 53: Remove The Hinges

    Figure 38. Remove the camera module and the LED FPC Go to to look up the Lenovo part number of the following replacement https://support.lenovo.com/partslookup part: Camera module MIC board Remove the hinges Make sure the following FRU (or CRU) have been removed. Make sure the following FRU (or CRU) have been removed.
  • Page 54 Screw specifications Number of screws M2.5 x 2.5 Step 2. Remove the hinges. Figure 40. Remove the hinges Go to to look up the Lenovo part number of the following replacement https://support.lenovo.com/partslookup part: Hinges Lenovo IdeaPad S740-15IRH Hardware Maintenance Manual...

  • Page 55: Trademarks

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

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