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Lenovo ThinkPad P14s Gen 4 Hardware Maintenance Manual
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Lenovo ThinkPad P14s Gen 4 Hardware Maintenance Manual

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ThinkPad T14 Gen 4 and ThinkPad P14s Gen
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Summary of Contents for Lenovo ThinkPad P14s Gen 4

  • Page 1 ThinkPad T14 Gen 4 and ThinkPad P14s Gen Hardware Maintenance Manual...
  • Page 2 First Edition (April 2023) © Copyright Lenovo 2023. 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 3: Table Of Contents

    Power management ... . . drive bracket (for Intel models only) ..Sleep mode ....© Copyright Lenovo 2023...
  • Page 4 1170 Smart card reader, smart card reader cable and dummy smart card reader (for selected models) ....ThinkPad T14 Gen 4 and ThinkPad P14s Gen 4 Hardware Maintenance Manual...

  • Page 5: About This Manual

    21HD, 21HE, 21K3, and 21K4 ThinkPad P14s Gen 4 21HF, 21HG, 21K5, and 21K6 ThinkPad T14 Gen 4 and ThinkPad P14s Gen 4 might be shipped with different microprocessors, namely ® Intel and Advanced Micro Devices (AMD). Hereby Intel models and AMD models are used to distinguish computer models with different microprocessors.
  • Page 6 ThinkPad T14 Gen 4 and ThinkPad P14s Gen 4 Hardware Maintenance Manual...

  • Page 7: Chapter 1. Safety Information

    • Fan louvers on the machine help to prevent overheating of internal components. Do not obstruct fan louvers or cover them with labels or stickers. Electrical safety Observe the following rules when working on electrical equipment. © Copyright Lenovo 2023...
  • Page 8 This practice ensures correct grounding of the units. • If an electrical accident occurs: – Use caution; do not become a victim yourself. – Switch off power. – Send another person to get medical aid. ThinkPad T14 Gen 4 and ThinkPad P14s Gen 4 Hardware Maintenance Manual...

  • Page 9: Safety Inspection Guide

    4. Check for cracked or bulging batteries. 5. Remove the cover. 6. Check for any obvious non-ThinkPad / non-Lenovo alterations. Use good judgment as to the safety of any non-ThinkPad / 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 ThinkPad T14 Gen 4 and ThinkPad P14s Gen 4 Hardware Maintenance Manual...
  • Page 11 DANGER DANGER DANGER DANGER DANGER DANGER Chapter 1 Safety information...
  • Page 12 ThinkPad T14 Gen 4 and ThinkPad P14s Gen 4 Hardware Maintenance Manual...
  • Page 13 PERIGO PERIGO PERIGO Chapter 1 Safety information...
  • Page 14 PERIGO PERIGO PERIGO PERIGO PERIGO DANGER DANGER ThinkPad T14 Gen 4 and ThinkPad P14s Gen 4 Hardware Maintenance Manual...
  • Page 15 DANGER DANGER DANGER DANGER DANGER Chapter 1 Safety information...
  • Page 16 DANGER VORSICHT VORSICHT VORSICHT VORSICHT ThinkPad T14 Gen 4 and ThinkPad P14s Gen 4 Hardware Maintenance Manual...
  • Page 17 VORSICHT VORSICHT VORSICHT VORSICHT Chapter 1 Safety information...
  • Page 18 ThinkPad T14 Gen 4 and ThinkPad P14s Gen 4 Hardware Maintenance Manual...
  • Page 19 Chapter 1 Safety information...
  • Page 20 ThinkPad T14 Gen 4 and ThinkPad P14s Gen 4 Hardware Maintenance Manual...
  • Page 21 Chapter 1 Safety information...
  • Page 22 ThinkPad T14 Gen 4 and ThinkPad P14s Gen 4 Hardware Maintenance Manual...
  • Page 23 Chapter 1 Safety information...
  • Page 24 ThinkPad T14 Gen 4 and ThinkPad P14s Gen 4 Hardware Maintenance Manual...

  • Page 25: Chapter 2. Important Service Information

    – “FRU identification” on page 20 Important: • Advise customers to contact the Lenovo Customer Support Center if they need any assistance in obtaining or installing any software fixes, drivers, and UEFI BIOS downloads. Telephone numbers for Lenovo Support are available at: https://pcsupport.lenovo.com/supportphonelist...

  • Page 26: How To Use Error Message

    Dynamic Configure To Order (CTO) model This model provides the ability for a customer to configure a Lenovo solution from a Web Site, and have this configuration sent to fulfillment, where it is built and shipped directly to the customer. The machine label and eSupport will load these products as the 4-character MT, 4-character model, and 2-character country code.

  • Page 27: Chapter 3. General Checkout

    Before checking problems with the computer, determine whether the damage is covered under the warranty by referring to the following list: © Copyright Lenovo 2023...

  • Page 28: Checkout Guide

    Note: If you are unable to isolate and repair the problem yourself after running the program, save and print the log files created by the program. You need the log files when you speak to a Lenovo technical support representative.

  • Page 29: Quick Test Programs

    Run quick test programs to troubleshoot and resolve computer problems, especially when the computer does not have the Vantage app installed. To download and install a quick test program, go to https://www.lenovo.com/diags , and follow the instructions on the Web site.

  • Page 30: Bootable Diagnostic Programs

    If the computer you are servicing is not installed with the UEFI diagnostic program, you can download a bootable diagnostic program from the Lenovo Support Web site. The bootable diagnostic program enables you to view system information and test some hardware devices in your computer, such as memory, storage devices, the LCD, and system board buses.

  • Page 31: Checking The Ac Power Adapter

    Checking the built-in battery and operational charging This system supports only batteries specially designed for this specific system and manufactured by Lenovo or an authorized manufacturer. The system does not support unauthorized batteries or batteries designed for other systems.
  • Page 32 • If the voltage is correct, replace the system board. • If the voltage is not correct, replace the coin-cell battery. • If the coin-cell battery discharges quickly after replacement, replace the system board. ThinkPad T14 Gen 4 and ThinkPad P14s Gen 4 Hardware Maintenance Manual...

  • Page 33: Chapter 4. Related Service Information

    When the latest maintenance diskette and the system program service diskette become available, they will be posted on: https://support.lenovo.com Reset or restore Windows To reset or restore Windows, refer to the information below： • Use Lenovo recovery options. 1. Go to https://support.lenovo.com/HowToCreateLenovoRecovery 2. Follow the on-screen instructions. • Use Window recovery options.

  • Page 34: Supervisor Password

    The system management password can also protect the system information stored in UEFI BIOS like a supervisor password, but it has lower authority by default. The system management password can be set through the UEFI BIOS menu or through Windows Management Instrumentation (WMI) with the Lenovo client-management interface.

  • Page 35: How To Remove The Power-On Password

    Lenovo cannot reset your passwords or recover data from the storage drive. You can contact a Lenovo authorized service provider to have the storage drive replaced. A fee will be charged for parts and service. If the storage drive is a CRU (Customer Replaceable Unit), you can also contact Lenovo to purchase a new storage drive to replace the old one by yourself.

  • Page 36: Power Management

    Hibernation mode In hibernation mode, the following occurs: • The system status, RAM, VRAM, and setup data are stored on the solid-state drive. ThinkPad T14 Gen 4 and ThinkPad P14s Gen 4 Hardware Maintenance Manual...

  • Page 37: Symptom-To-Fru Index

    • The system is powered off. Note: If the computer enters the hibernation mode while it is connected to the dock, do not disconnect it before resuming normal operation. If you do disconnect it and then try to resume normal operation, you will get an error message, and you will have to restart the system.

  • Page 38: Numeric Error Codes

    HDD (HDD0) 3. Replace the system board. 2200 Have the computer serviced. Machine Type and Serial Number are invalid. 2201 Replace the system board. Machine UUID is invalid ThinkPad T14 Gen 4 and ThinkPad P14s Gen 4 Hardware Maintenance Manual...

  • Page 39: Error Messages

    Beep errors Lenovo SmartBeep technology enables you to decode beep errors with your smartphone when a black screen occurs with beeps from your computer. To decode the beep error with Lenovo SmartBeep technology, do the following: 1.
  • Page 40 The following section describes some beep errors and the corresponding solutions. Note: Do not attempt to service a product yourself unless instructed to do so by the Customer Support Center or product documentation. Only use a Lenovo-authorized service provider to repair your product. Error codes...

  • Page 41: Beep Symptoms

    Error codes Solutions 0287: Discrete graphics error 1. Reinstall or replace the discrete graphics card (service provider only). 2. If step 1 does not work, replace the system board (service provider only). 1. Reconnect the display cable on both the system board side and the computer display side (service provider only) and check the LCD panel.

  • Page 42: Lcd-Related Symptoms

    If the LCD you are servicing has two or less visible defective pixels, it should not be considered faulty. However, if the LCD has three or more visible defective pixels, it will be deemed as defective by Lenovo and it should be replaced.

  • Page 43: Intermittent Problems

    Table 4. LCD-related symptoms FRU or action, in sequence Symptom or error No beep, power-on indicator on, and a blank LCD during 1. Run LCD Self Test. POST. 2. Replace the system board. • LCD backlight not working. 1. Reseat the LCD connectors. •...
  • Page 44 ThinkPad T14 Gen 4 and ThinkPad P14s Gen 4 Hardware Maintenance Manual...

  • Page 45: Chapter 5. Special Keys

    Answer incoming calls on Microsoft Teams Decline incoming calls on Microsoft Teams You can customize the function of this key on the Vantage app Open Snipping Tool Toggle keyboard backlight (for selected models) Break operation Pause operation © Copyright Lenovo 2023...
  • Page 46 Key / Key combination Function Scroll contents Send system request Enter sleep mode To wake up the computer, press Fn or the power button. Go to beginning Go to end ThinkPad T14 Gen 4 and ThinkPad P14s Gen 4 Hardware Maintenance Manual...

  • Page 47: Chapter 6. Locations

    Chapter 6. Locations Locating computer controls and connectors Front Description Description Item Item Webcam privacy shutter Infrared camera or camera Power button or power button with Microphone fingerprint reader ® TrackPoint pointing stick RFID label © Copyright Lenovo 2023...

  • Page 48: Left And Right

    Intel models Description Description Item Item ® USB-C (Thunderbolt™ 4) power Ethernet connector connector USB-C (Thunderbolt 4) connector HDMI™ connector Always On USB-A 3.2 Gen 1 connector Audio connector ThinkPad T14 Gen 4 and ThinkPad P14s Gen 4 Hardware Maintenance Manual...
  • Page 49 Description Description Item Item Smart-card slot USB-A 3.2 Gen 1 connector Security-lock slot AMD models Description Description Item Item USB-C (USB 4) power connector Ethernet connector USB-C (3.2 Gen 2) connector HDMI connector Always On USB-A 3.2 Gen 1 connector Audio connector Smart-card slot USB-A 3.2 Gen 1 connector...

  • Page 50: Rear

    Rear Nano-SIM-card tray * for selected models Bottom Emergency-reset hole ThinkPad T14 Gen 4 and ThinkPad P14s Gen 4 Hardware Maintenance Manual...

  • Page 51: Locating Frus And Crus

    Lenovo will ship the CRU to you. CRU information and replacement instructions are shipped with your product and are available from Lenovo at any time upon request. You can find a list of CRUs for your product in this Hardware Maintenance Manual. An electronic version of this manual can be found at .

  • Page 52: Major Frus And Crus

    Major FRUs and CRUs ThinkPad T14 Gen 4 and ThinkPad P14s Gen 4 Hardware Maintenance Manual...
  • Page 53 Table 5. Major FRUs and CRUs FRU description Self-service Optional-service LCD unit Note: LCD unit is a single FRU for models with OLED panel. Keyboard Nano-SIM-card tray* Keyboard bezel assembly M.2 solid-state drive thermal pad M.2 solid-state drive M.2 solid-state drive bracket Built-in battery Thermal pad for the wireless WAN card (for Intel models only) Wireless WAN card*...
  • Page 54 Microsoft Windows operating system. It might not come with the computer, and a user might order it from https://pcsupport.lenovo.com/ , though additional shipping and handling fees might apply. lenovorecovery ThinkPad T14 Gen 4 and ThinkPad P14s Gen 4 Hardware Maintenance Manual...

  • Page 55: Lcd Frus And Crus

    LCD FRUs and CRUs Chapter 6 Locations...
  • Page 56 Notes: • LCD unit is a single FRU for models with OLED panel. • Depending on the computer model, your computer might look different from the illustration above. ThinkPad T14 Gen 4 and ThinkPad P14s Gen 4 Hardware Maintenance Manual...

  • Page 57: Miscellaneous Parts

    • Spec Connector and cable guide This topic provides information to help Lenovo authorized service technicians identify connectors and cables for replacement purpose. To view each FRU and the exploded illustration of the computer, see “Major FRUs and CRUs” on page 46 and “LCD FRUs and CRUs” on page 49.
  • Page 58 LCD connector (internal) LCD cable Connect one end of the LCD cable to the LCD panel and the other end to this connector. ThinkPad T14 Gen 4 and ThinkPad P14s Gen 4 Hardware Maintenance Manual...
  • Page 59 Table 8. System board connector and cable guide (continued) Internal cable required Connector/feature Cable connection Speaker assembly connector Speaker assembly cable The speaker assembly comes with (internal) a cable. Connect the cable to this connector. Ethernet card connector (internal) Ethernet card cable Connect one end of the Ethernet card cable to the Ethernet card board and the other end to this...

  • Page 60: Looking Up Fru Information

    Connect the cables to these connectors. Looking up FRU information For detailed FRU information, including part numbers, descriptions, and substitution part numbers, go to: https://support.lenovo.com/partslookup ThinkPad T14 Gen 4 and ThinkPad P14s Gen 4 Hardware Maintenance Manual...

  • Page 61: Chapter 7. Fru Replacement Notices

    • Keep the screw kit in your tool bag. For the part number of the screw kit, go to: https://support.lenovo.com/partslookup Tighten screws as follows: • Plastic to plastic Turn an additional angle of 90 degrees after the screw head touches the surface of the plastic part. © Copyright Lenovo 2023...

  • Page 62: Retaining Serial Numbers

    Maintenance Key. Note: Only an authorized Lenovo service technician can access the above Web site. 3. Restart the computer. 4. When the logo is displayed, press Esc. The ThinkPad Config Information Update Utility interface is displayed.

  • Page 63: Retaining The Uuid

    To check what ECAs have been previously applied to the machine, use the ECA Information Read/Write function on the LENOVO ThinkPad Hardware Maintenance Diskette or Maintenance Key. 1. Insert the latest version of LENOVO ThinkPad Hardware Maintenance Diskette or Maintenance Key, and then restart the computer.
  • Page 64 Note: Only the ECA number is stored in the EEPROM. The machine type of the ECA is assumed to be the same as the machine type of the machine that had the ECA applied to it. 1. Insert the latest version of LENOVO ThinkPad Hardware Maintenance Diskette or Maintenance Key, and then restart the computer.

  • Page 65: Chapter 8. Removing Or Replacing A Fru

    2. Click Power Options, and then click Choose what the power buttons do on the left pane. 3. Click Change settings that are currently unavailable at the top. 4. If prompted by User Account Control (UAC), click Yes. © Copyright Lenovo 2023...

  • Page 66: Removing The Nano-Sim-Card And Nano-Sim-Card Tray

    Note: You might be instructed to slide the keyboard frame forward or backward in some of the following steps. In this case, ensure that you do not press or hold the keys while sliding the keyboard frame. Otherwise, the keyboard frame cannot be moved. ThinkPad T14 Gen 4 and ThinkPad P14s Gen 4 Hardware Maintenance Manual...
  • Page 67 Removal procedure Chapter 8 Removing or replacing a FRU...

  • Page 68: 1020 Base Cover Assembly

    When installing: Configure the keyboard language in UEFI BIOS: 1. Enter the UEFI BIOS menu. 2. Click Config ➙ Keyboard/Mouse ➙ Keyboard Layout, and then select the keyboard language. 1020 Base cover assembly Removal procedure ThinkPad T14 Gen 4 and ThinkPad P14s Gen 4 Hardware Maintenance Manual...
  • Page 69 Installation procedure Chapter 8 Removing or replacing a FRU...
  • Page 70 For the labels that are not shipped with the new base cover assembly, peel them from the old base cover assembly, and adhere them to the new one. ThinkPad T14 Gen 4 and ThinkPad P14s Gen 4 Hardware Maintenance Manual...

  • Page 71: 1030 Built-In Battery

    Important notice for replacing a battery Attention: Lenovo has no responsibility for the performance or safety of unauthorized batteries, and provides no warranties for failures or damage arising out of their use. The Vantage app provides an automatic battery diagnostic test that determines if the built-in battery is defective.

  • Page 72: 1040 M.2 Solid-State Drive And M.2 Solid-State Drive Bracket (For Intel Models Only)

    • Do not make the M.2 solid-state drive subject to physical shocks or vibration. Put the M.2 solid-state drive on a soft material, such as cloth, to absorb physical shocks. Removal procedure • Type 1 ThinkPad T14 Gen 4 and ThinkPad P14s Gen 4 Hardware Maintenance Manual...

  • Page 73: 1050 M.2 Solid-State Drive And M.2 Solid-State Drive Bracket (For Amd Models Only)

    2. Go to Settings ➙ Restore profiles. The app will download and install its unique color profiles from Lenovo cloud automatically. 1050 M.2 solid-state drive and M.2 solid-state drive bracket (for AMD models only) For access, remove this FRU: •...
  • Page 74 • Type 1 Torque Step Screw (quantity) Color M2.0 × 3.5 mm (with shoulder 1.0), flat-head, nylon-coated (1) Black 0.18 +/- 0.015 Nm (1.85 +/- 0.15 kgf- • Type 2 ThinkPad T14 Gen 4 and ThinkPad P14s Gen 4 Hardware Maintenance Manual...

  • Page 75: 1060 Wireless Wan Card And Wireless-Wan-Card Bracket (For Selected Models)

    Note: If the app is uninstalled, reinstall it by downloading the installation package from https:// pcsupport.lenovo.com/us/en/downloads/DS540353 2. Go to Settings ➙ Restore profiles. The app will download and install its unique color profiles from Lenovo cloud automatically. 1060 Wireless WAN card and wireless-WAN-card bracket (for selected models) For access, remove this FRU: •...

  • Page 76: 1070 I/O Bracket

    When you install the wireless WAN card, ensure that you connect the blue cable to connector AUX and the orange cable to connector MAIN. 1070 I/O bracket For access, remove this FRU: • “1020 Base cover assembly” on page 62 Removal procedure ThinkPad T14 Gen 4 and ThinkPad P14s Gen 4 Hardware Maintenance Manual...

  • Page 77: 1080 Thermal Fan Assembly

    Step Screw (quantity) Color Torque M2.0 × 5 mm, flat-head, nylon-coated (4) Black 0.18 +/- 0.015 Nm (1.85 +/- 0.15 kgf-cm) 1080 Thermal fan assembly For access, remove this FRU: • “1020 Base cover assembly” on page 62 Removal procedure Depending on your computer model, do one of the following to remove the thermal fan assembly •...

  • Page 78: 1090 Usb Board Cable, Usb Board And Usb Board Bracket

    – For Intel models with discrete thermal pipes: – For AMD models 1090 USB board cable, USB board and USB board bracket For access, remove these FRUs: • “1020 Base cover assembly” on page 62 ThinkPad T14 Gen 4 and ThinkPad P14s Gen 4 Hardware Maintenance Manual...

  • Page 79: 1110 Speaker Assembly

    Removal procedure Step Screw (quantity) Color Torque M2.0 × 5.0 mm, flat-head, nylon-coated (2) Black 0.18 +/- 0.015 Nm (1.85 +/- 0.15 kgf-cm) 1110 Speaker assembly For access, remove these FRUs in order: • “1020 Base cover assembly” on page 62 Chapter 8 Removing or replacing a FRU...

  • Page 80: 1120 Coin-Cell Battery

    Use only the authorized battery specified for the computer. Any other battery could ignite or explode. For access, remove these FRUs in order: • “1020 Base cover assembly” on page 62 • “1030 Built-in battery” on page 65 Removal procedure ThinkPad T14 Gen 4 and ThinkPad P14s Gen 4 Hardware Maintenance Manual...

  • Page 81: 1130 Memory Module (For Intel Models Only)

    When installing: • Ensure that the connector is attached firmly. • Reset the system date and time in the BIOS menu. 1130 Memory module (for Intel models only) For access, remove these FRUs in order: • “1020 Base cover assembly” on page 62 Removal procedure Installation procedure Note: Memory module replacement might cause memory retraining during POST.

  • Page 82: 1150 Trackpad And Trackpad Cable

    Removal procedure Note: There might exist a waterproof mylar covering the trackpad, remove the mylar before replacement. When installing: Reinstall the screws in alphabetic order (a to g). ThinkPad T14 Gen 4 and ThinkPad P14s Gen 4 Hardware Maintenance Manual...

  • Page 83: 1160 Nfc Module And Nfc Module Cable (For Selected Models)

    Torque Step Screw (quantity) Color M1.6 × L1.8 mm, flat-head, nylon-coated (7) Silver 0.1 +/- 0.015 Nm (1.1 +/- 0.15 kgf-cm) Notes: • A mylar might cover the trackpad, and ensure that you attach the mylar to the trackpad after replacement. •...

  • Page 84: 1170 Smart Card Reader, Smart Card Reader Cable And Dummy Smart Card Reader (For Selected Models)

    For access, remove these FRUs in order: • “1020 Base cover assembly” on page 62 • “1030 Built-in battery” on page 65 Removal procedure of the smart card reader and smart card reader cable ThinkPad T14 Gen 4 and ThinkPad P14s Gen 4 Hardware Maintenance Manual...
  • Page 85 Torque Step Screw (quantity) Color M1.6 × 1.8 mm, flat-head, nylon-coated (4) Silver 0.1+/- 0.015 Nm (1.1 +/- 0.15 kgf-cm) Removal procedure of the dummy smart card reader Torque Step Screw (quantity) Color M1.6 × 1.8 mm, flat-head, nylon-coated (2) Silver 0.1+/- 0.015 Nm (1.1 +/- 0.15 kgf-cm)

  • Page 86: 1180 Power Button Board Cable And Power Button Board With Or Without Fingerprint Reader

    1180 Power button board cable and power button board with or without fingerprint reader For access, remove this FRU: • “1020 Base cover assembly” on page 62 Removal procedure ThinkPad T14 Gen 4 and ThinkPad P14s Gen 4 Hardware Maintenance Manual...
  • Page 87 Step Screw (quantity) Color Torque M2.0 × 3.0 mm, flat-head, nylon-coated (2) Silver 0.18 +/- 0.015 Nm (1.85 +/- 0.15 kgf-cm) Chapter 8 Removing or replacing a FRU...

  • Page 88: 1190 Wireless Wan Antenna Assembly (For Selected Models)

    1190 Wireless WAN antenna assembly (for selected models) For access, remove these FRUs: • “1020 Base cover assembly” on page 62 • “1030 Built-in battery” on page 65 ThinkPad T14 Gen 4 and ThinkPad P14s Gen 4 Hardware Maintenance Manual...

  • Page 89: 1200 System Board

    Removal procedure When installing: • Ensure that the connector is attached firmly. • For models without Wireless WAN card, use an adhesive tape to fix the cable on the system board. 1200 System board Important notices for handling the system board: When handling the system board, read the following: •...
  • Page 90 ThinkPad P14s Gen 4 21HF, 21HG, 21K5, and 21K6 Removal procedure Note: Check to make sure all system board mylars and absorbers are taped in place during replacement as shown. ThinkPad T14 Gen 4 and ThinkPad P14s Gen 4 Hardware Maintenance Manual...

  • Page 91: 1210 Lcd Unit

    Step Screw (quantity) Color Torque M2.0 × 3.0 mm, flat head, nylon-coated (3) silver 0.18 +/- 0.015 Nm (1.85 +/- 0.15 kgf-cm) When installing: Configure the keyboard language in UEFI BIOS: 1. Enter the UEFI BIOS menu. 2. Click Config ➙ Keyboard/Mouse ➙ Keyboard Layout, and then select the keyboard language. 1210 LCD unit For access, remove this FRU: •...
  • Page 92 Removal procedure ThinkPad T14 Gen 4 and ThinkPad P14s Gen 4 Hardware Maintenance Manual...

  • Page 93: 2010 Lcd Bezel Sheet And Lcd Bezel

    Step Screw (quantity) Color Torque M 2.5 × 4 mm, flat-head, nylon-coated (4) Black 0.29 +/- 0.03 Nm (3.0 +/-0.3 kgf-cm) Step Screw (quantity) Color Torque M2.0 × 5 mm, flat-head, nylon-coated (1) Black 0.18 +/- 0.015 Nm (1.85 +/- 0.15 kgf-cm) When installing: Ensure that the connectors are attached firmly.

  • Page 94: 2020 Lcd Hinges

    • “1020 Base cover assembly” on page 62 • “1070 I/O bracket” on page 70 • “1210 LCD unit” on page 85 • “2010 LCD bezel sheet and LCD bezel” on page 87 ThinkPad T14 Gen 4 and ThinkPad P14s Gen 4 Hardware Maintenance Manual...

  • Page 95: 2030 Lcd Panel And Elastic Adhesive Tapes

    Removal procedure Table 9. Screw specification Step Screw (quantity) Color Torque M2.5 × 3.5 mm, flat-head, nylon-coated (6) Black 0.29 +/- 0.03 Nm (3.0 +/-0.3 kgf-cm) 2030 LCD panel and elastic adhesive tapes For access, remove these FRUs in order: •...
  • Page 96 Note: Do not pull the tapes too fast, otherwise, the tapes might snap. 2. Turn over the LCD panel and detach the LCD cable from the LCD panel as shown. ThinkPad T14 Gen 4 and ThinkPad P14s Gen 4 Hardware Maintenance Manual...

  • Page 97: 2040 Lcd Cable

    2040 LCD cable For access, remove these FRUs in order: • “1020 Base cover assembly” on page 62 • “1070 I/O bracket” on page 70 • “1210 LCD unit” on page 85 • “2010 LCD bezel sheet and LCD bezel” on page 87 •...

  • Page 98: 2060 Lcd Cover Assembly

    • “2020 LCD hinges” on page 88 • “2030 LCD panel and elastic adhesive tapes” on page 89 • “2040 LCD cable” on page 91 • “2050 Camera-and-microphone module and cable” on page 91 ThinkPad T14 Gen 4 and ThinkPad P14s Gen 4 Hardware Maintenance Manual...

  • Page 99: Appendix A. Notices

    Lenovo representative for information on the products and services currently available in your area. Any reference to a Lenovo product, program, or service is not intended to state or imply that only that Lenovo product, program, or service may be used. Any functionally equivalent product, program, or service that does not infringe any Lenovo intellectual property right may be used instead.
  • Page 100 Trademarks Lenovo, Lenovo logo, ThinkPad, ThinkPad logo, TrackPoint, and Ultraconnect are trademarks of Lenovo. Intel and Thunderbolt are trademarks of Intel Corporation or its subsidiaries in the U.S. and/or other countries. Microsoft, Microsoft Teams, Windows, BitLocker, and Cortana are trademarks of the Microsoft group of companies.

  • Page 101: Appendix B. Abbreviation Table

    Electrically Erasable Programmable Read-Only Memory Extensible Firmware Interface Electrostatic discharge Field Replaceable Unit General Announce Variant Integrated circuits Liquid Crystal Display Machine type and model POST Power-on self-test RFID Radio-frequency identification Supervisor password UUID Universally unique identifier © Copyright Lenovo 2023...
  • Page 102 ThinkPad T14 Gen 4 and ThinkPad P14s Gen 4 Hardware Maintenance Manual...
  • Page 104 Part Number: SP41G92290 Printed in China (1P) P/N: SP41G92290 *1PSP41G92290*...

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