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Lenovo Legion Pro 7i Hardware Maintenance Manual

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Hardware Maintenance Manual
Lenovo Legion Pro 7 (16", 8) and Lenovo Legion Pro 7i (16", 8)

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Summary of Contents for Lenovo Legion Pro 7i

  • Page 1 Hardware Maintenance Manual Lenovo Legion Pro 7 (16″, 8) and Lenovo Legion Pro 7i (16″, 8)
  • Page 2 First Edition (January 2023) © Copyright Lenovo 2023.

  • Page 3: Table Of Contents

    Trademarks ....lxix Remove the Wi-Fi card ... . Remove the memory module ..© Copyright Lenovo 2023...
  • Page 4 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 2023...
  • 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 2023...

  • 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 Chapter 1 Safety information...
  • Page 12 Hardware Maintenance Manual...
  • Page 13 PERIGO PERIGO PERIGO PERIGO PERIGO Chapter 1 Safety information...
  • Page 14 PERIGO PERIGO PERIGO DANGER DANGER DANGER Hardware Maintenance Manual...
  • Page 15 DANGER DANGER DANGER DANGER DANGER VORSICHT Chapter 1 Safety information...
  • Page 16 VORSICHT VORSICHT VORSICHT VORSICHT VORSICHT Hardware Maintenance Manual...
  • Page 17 VORSICHT VORSICHT Chapter 1 Safety information...
  • Page 18 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 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 2023...

  • Page 26: Cru List

    • 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 • Improper disc insertion or use of an external optical drive •...

  • Page 27: 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. © Copyright Lenovo 2023...
  • Page 28 Figure 1. Exploded view Hardware Maintenance Manual...
  • Page 29 Table 2. FRU (CRU) categories FRU (CRU) category LCD module Note: The LCD module as a whole is not a FRU, it contains FRUs as its components. Strip cover Upper case Antenna Keyboard bracket mylar System board DC-in bracket I/O board cable I/O board Thermal module Note: The computer with a white backlight keyboard has a different thermal module.
  • Page 30 Figure 2. LCD module - exploded view Table 3. FRU categories for the LCD module FRU (CRU) category LCD bezel Hinge cover LCD panel Hardware Maintenance Manual...
  • Page 31 Table 3. FRU categories for the LCD module (continued) FRU (CRU) category Camera bracket Microphone rubber Camera board Camera cable Conductive tape Sensor board Removable tape LCD cover EDP cable Chapter 3 Identifying FRUs (CRUs)
  • Page 32 Hardware Maintenance Manual...

  • Page 33: 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 34: 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 35: Remove The Solid-State Drive (Ssd) Plate (L Or R)

    Step 3. Pry up the latches and then remove the lower case. Figure 4. Pry up the latches and remove the lower case Go to to look up the Lenovo part number of the following replacement https://support.lenovo.com/partslookup part: Lower case Remove the solid-state drive (SSD) plate (L or R) Make sure the following FRU (or CRU) has been removed.

  • Page 36: Remove The Solid-State Drive (Ssd)

    Figure 7. Remove the SSD plate (L) Screw specifications Number of screws M2 x L5 Go to to look up the Lenovo part numbers of the following https://support.lenovo.com/partslookup replacement parts: Solid-state drive (SSD) plate (L) Solid-state drive (SSD) plate (R) Remove the solid-state drive (SSD) Make sure the following FRUs (or CRUs) have been removed.

  • Page 37: Remove The Solid-State Drive (Ssd) Stand Off

    Step 2. Remove the SSD by pulling it away from the slot. Figure 9. Remove the SSD Go to to look up the Lenovo part number of the following replacement https://support.lenovo.com/partslookup part: Solid-state drive (SSD) Remove the solid-state drive (SSD) stand off Make sure the following FRUs (or CRUs) have been removed.

  • Page 38: Remove The Battery Pack

    Figure 10. Remove the SSD stand off Screw specifications Number of screws M2.5 x L3.2 Go to to look up the Lenovo part number of the following replacement https://support.lenovo.com/partslookup part: Solid-state drive (SSD) stand off Remove the battery pack Make sure the following FRUs (or CRUs) have been removed.

  • Page 39: Remove The Touchpad Board Cable

    Go to to look up the Lenovo part number of the following replacement https://support.lenovo.com/partslookup part: Battery pack Remove the touchpad board cable Make sure the following FRUs (or CRUs) have been removed. “Remove the lower case” on page 28 “Remove the solid-state drive (SSD) plate (L or R)” on page 29 “Remove the solid-state drive (SSD)”...

  • Page 40: Remove The Lightingbar (For Selected Models)

    Figure 13. 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 lightingbar (for selected models) Make sure the following FRU (or CRU) has been removed. “Remove the lower case” on page 28 “Remove the solid-state drive (SSD) plate (L or R)”...

  • Page 41: Remove The Wi-Fi Card

    Wi-Fi card by pulling it away from the slot. Figure 16. Remove the Wi-Fi card Screw specifications Number of screws M2 x L1.8 Go to to look up the Lenovo part number of the following replacement https://support.lenovo.com/partslookup part: Wi-Fi card Chapter 4 Removing a FRU or CRU...

  • Page 42: Remove The Memory Module

    Release the latches on both edges of the socket at the same time. Then, remove the memory module. Figure 18. Remove the memory module Go to to look up the Lenovo part numbers of the following https://support.lenovo.com/partslookup replacement parts: Memory module...

  • Page 43: Remove The Dc-In Bracket

    Figure 19. Remove the DC-in bracket Screw specifications Number of screws M2 x L6 Go to to look up the Lenovo part number of the following replacement https://support.lenovo.com/partslookup part: DC-in bracket Remove the thermal module Make sure the following FRUs (or CRUs) have been removed.

  • Page 44: Remove The Cmos Battery

    “Remove or apply the liquid metal” on page 43 for specific steps of how to apply the clean liquid metal. Go to https://support.lenovo.com/partslookup to look up the Lenovo part number of the following replacement part: Thermal module Remove the CMOS battery Make sure the following FRUs (or CRUs) have been removed.

  • Page 45: Remove The I/O Board

    Step 2. Detach the CMOS battery cable connector and then remove the CMOS battery. Figure 22. Remove the CMOS battery Go to to look up the Lenovo part number of the following replacement https://support.lenovo.com/partslookup part: CMOS battery Remove the I/O board Make sure the following FRUs (or CRUs) have been removed.

  • Page 46: Remove The System Board Hook

    Screw specifications Number of screws M2 x L3.5 Go to https://support.lenovo.com/partslookup to look up the Lenovo part number of the following replacement part: I/O board Remove the system board hook Make sure the following FRUs (or CRUs) have been removed.

  • Page 47: Remove The System Board And The I/O Board Cable

    Go to to look up the Lenovo part number of the following replacement https://support.lenovo.com/partslookup part: System board hook Remove the system board and the I/O board cable Make sure the following FRUs (or CRUs) have been removed. “Remove the lower case” on page 28 “Remove the solid-state drive (SSD) plate (L or R)”...
  • Page 48 Figure 26. Disconnect cables connected to the system board Step 2. Remove four screws and then remove the system board carefully. Hardware Maintenance Manual...

  • Page 49: Remove Or Apply The Liquid Metal

    Remove the I/O board cable from the system board. Figure 28. Remove the I/O board cable from the system board Go to https://support.lenovo.com/partslookup to look up the Lenovo part numbers of the following replacement parts: System board I/O board cable Remove or apply the liquid metal Liquid metal is applied as thermal interface material between the surfaces of the CPU die and the heat sink.
  • Page 50 Before removing or applying the liquid metal, make sure the following FRUs (or CRUs) have been removed. “Remove the lower case” on page 28 “Remove the solid-state drive (SSD) plate (L or R)” on page 29 “Remove the solid-state drive (SSD)” on page 30 “Remove the battery pack ”...
  • Page 51 Figure 29. The protection card Remove the original liquid metal Note: The illustrations are for your reference. The Intel and AMD CPU are different in shape. Step 1. Put the protection card to avoid other components being stained by the liquid metal. Figure 30.
  • Page 52 Step 3. Use the brush to gather the original liquid metal into a ball. Figure 32. Gather the original liquid metal into a ball Step 4. Use the straw to draw the liquid metal as much as possible. Figure 33. Use the straw to draw the liquid metal Step 5.
  • Page 53 Figure 35. Take the protection card away Step 7. Tear the original sponge off. Figure 36. Locate the sponge Figure 37. Tear the original sponge off Apply the clean liquid metal Note: The illustrations are for your reference. The Intel and AMD CPU are different in shape. Step 1.
  • Page 54 Figure 38. Locate the CPU Figure 39. Stick a new sponge Step 2. Put the protection card to avoid other components being stained by the liquid metal. Figure 40. Put the protection card Step 3. Unscrew the cap of the liquid metal injector. Screw the needle into the injector. Hardware Maintenance Manual...

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

    Figure 41. Screw the needle into the injector Step 4. Squeeze the clean liquid metal out on the CPU die surface. Use a new brush to spread the liquid metal thinly and evenly on the whole surface. Note: It would be difficult to spread the liquid metal if the brush has cleaning solution residue. Therefore, you must use a new clean brush to spread the liquid metal.

  • Page 56: Remove The Antenna

    The Golden Key U1 tool is prepared by running the U1 Update software on a FAT32-formatted USB thumb drive. Go to http://support.lenovo.com/us/en/solutions/HT506954 for detailed instructions on how to create and use a Golden Key U1 tool. Remove the antenna Make sure the following FRUs (or CRUs) have been removed.

  • Page 57: Remove The Strip Cover

    Figure 45. Remove the main and auxiliary antenna Go to to look up the Lenovo part numbers of the following https://support.lenovo.com/partslookup replacement parts: Antenna Keyboard bracket mylar Remove the strip cover Make sure the following FRUs (or CRUs) have been removed.

  • Page 58: Remove The Lcd Module

    M2.5 x L7 Step 2. Remove the strip cover. Figure 47. Remove the strip cover Go to to look up the Lenovo part number of the following replacement https://support.lenovo.com/partslookup part: Strip cover Remove the LCD module Make sure the following FRUs (CRUs) have been removed.
  • Page 59 “Remove the memory module” on page 36 “Remove the DC-in bracket” on page 37 “Remove the thermal module” on page 37 “Remove the system board and the I/O board cable” on page 41 “Remove the strip cover” on page 51 Step 1.

  • Page 60: Remove Ceramic Keycaps From The Replaced Upper Case (If Installed By Customers)

    Figure 50. Take out the EDP cable and remove the LCD module Remove ceramic keycaps from the replaced upper case (if installed by customers) This computer model came with a factory-supplied keycap kit in the product package. The kit contains 4 ceramic keycaps, along with scissors and a detachment tool, that users can use to swap keys of the same shape and size.
  • Page 61 Figure 52. Keycap kit contents Note: The scissors can only be used to replace those underneath keys W, A, S, and D. They are not compatible with other keys. The kit also came with a printed instruction. Customers should be able to swap keys by following the instructions.
  • Page 62 Figure 53. Install a new keycap Step 2. Push down the upper edge of the keycap until it fits into place. Note: Make sure the keycap is firmly installed and does not move easily. Remove scissors The scissors supplied in the keycap kit can only be used to replace those underneath keys W, A, S, and D. Step 1.

  • Page 63: Remove The Upper Case

    Figure 55. Install new scissors Step 2. Align the replacement scissors with the installation position. Step 3. Install the upper edge of the scissors by pushing it down and then a little inward. Step 4. Push down the lower part of the scissors until it fits into place. Remove the upper case Make sure the following FRUs (CRUs) have been removed.

  • Page 64: Disassemble The Lcd Module

    “Remove the antenna” on page 50 “Remove the strip cover” on page 51 “Remove the LCD module” on page 52 Go to to look up the Lenovo part number of the following replacement https://support.lenovo.com/partslookup part: Upper case Disassemble the LCD module The LCD module as a whole is not a FRU.

  • Page 65: Remove The Lcd Panel

    Figure 57. Remove the hinge cover Go to to look up the Lenovo part number of the following replacement https://support.lenovo.com/partslookup part: Hinge cover Remove the LCD panel Make sure the following FRUs (CRUs) have been removed. “Remove the LCD module” on page 52 “Remove the LCD bezel”...

  • Page 66: Remove The Edp Cable

    LCD part. When the new color profiles are installed successfully, a prompted window will be displayed. Go to to look up the Lenovo part numbers of the following https://support.lenovo.com/partslookup replacement parts:...

  • Page 67: Remove The Sensor Board

    Step 2. Remove the EDP cable from the LCD panel. Figure 61. Remove the EDP cable Go to https://support.lenovo.com/partslookup to look up the Lenovo part numbers of the following replacement parts: EDP cable Removable tape Remove the sensor board Make sure the following FRUs (CRUs) have been removed.

  • Page 68: Remove The Camera Bracket

    Disconnect cables connected to the sensor board and then remove the sensor board. Figure 63. Remove the sensor board Go to https://support.lenovo.com/partslookup to look up the Lenovo part numbers of the following replacement parts: Sensor board Conductive tape Removable tape Remove the camera bracket Make sure the following FRUs (CRUs) have been removed.

  • Page 69: Remove The Microphone Rubber

    Figure 64. Remove the camera bracket Screw specifications Number of screws M1.6 x L2.4 Go to to look up the Lenovo part numbers of the following https://support.lenovo.com/partslookup replacement parts: Camera bracket Removable tape Remove the microphone rubber Make sure the following FRUs (CRUs) have been removed.

  • Page 70: Remove The Camera Cable

    Remove the camera cable from the camera board and the sensor board. Figure 66. Remove the camera cable Go to https://support.lenovo.com/partslookup to look up the Lenovo part numbers of the following replacement parts: Camera cable Removable tape Remove the camera board Make sure the following FRUs (CRUs) have been removed.

  • Page 71: Remove The Lcd Cover

    “Remove the microphone rubber” on page 63 “Remove the camera cable” on page 64 “Remove the camera board” on page 64 Go to https://support.lenovo.com/partslookup to look up the Lenovo part number of the following replacement part: LCD cover Chapter 4 Removing a FRU or CRU...
  • Page 72 Hardware Maintenance Manual...

  • Page 73: Appendix A. Label Locations

    16.5 mm x 15 mm USA/ CA/ TW/ CA_Group 32 mm x 10 mm Country label 70 mm x 10 mm Malaysia 8 mm x 8 mm Vietnam 10 mm x 9 mm Belarus 40 mm x 8 mm © Copyright Lenovo 2023...
  • Page 74 Hardware Maintenance Manual...

  • Page 75: Trademarks

    Trademarks LENOVO and the LENOVO logo are trademarks of Lenovo. All other trademarks are the property of their respective owners. © 2023 Lenovo.

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Legion pro 716irx8h

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