Lenovo ThinkCentre neo 50a 24 Gen 3 Hardware Maintenance Manual
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Lenovo ThinkCentre neo 50a 24 Gen 3 Hardware Maintenance Manual

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ThinkCentre neo 50a 24 Gen 3
Hardware Maintenance Manual

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Summary of Contents for Lenovo ThinkCentre neo 50a 24 Gen 3

  • Page 1 ThinkCentre neo 50a 24 Gen 3 Hardware Maintenance Manual...
  • Page 2 First Edition (August 2022) © Copyright Lenovo 2022. 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

    ..Chapter 7. Notices and Chapter 5. Diagnostics ..39 trademarks ....77 © Copyright Lenovo 2022...
  • Page 4 ThinkCentre neo 50a 24 Gen 3 Hardware Maintenance Manual...

  • Page 5: About This Manual

    Important: This manual is intended only for trained service technicians who are familiar with ThinkCentre computers. Use this manual along with the advanced diagnostic tests to troubleshoot problems effectively. Before servicing a ThinkCentre computer, be sure to read and understand Chapter 1 “Important safety information” on page 1. © Copyright Lenovo 2022...
  • Page 6 ThinkCentre neo 50a 24 Gen 3 Hardware Maintenance Manual...

  • Page 7: Chapter 1. Important Safety Information

    Avoid contact with hot components inside the computer. During operation, some components become hot enough to burn the skin. Before you open the computer cover, turn off the computer, disconnect power, and wait approximately 10 minutes for the components to cool. © Copyright Lenovo 2022...

  • Page 8: Electrical Safety

    • Do not service the following parts with the power on when they are removed from their normal operating places in a machine: ThinkCentre neo 50a 24 Gen 3 Hardware Maintenance Manual...

  • Page 9: Safety Inspection Guide

    – Power supply units – Pumps – Blowers and fans – Motor generators and similar units. (This practice ensures correct grounding of the units.) • If an electrical accident occurs: – Use caution; do not become a victim yourself. – Switch off power. –...

  • Page 10: Handling Electrostatic Discharge-Sensitive Devices

    The caution and danger safety notices in this section are provided in the following languages: • English • Arabic • Brazilian/Portuguese • Chinese (simplified) • Chinese (traditional) • French • German • Hebrew • Italian • Korean ThinkCentre neo 50a 24 Gen 3 Hardware Maintenance Manual...
  • Page 11 • Spanish DANGER Electrical current from power, telephone and communication cables is hazardous. To avoid a shock hazard: • Do not connect or disconnect any cables or perform installation, maintenance, or reconfiguration of this product during an electrical storm. • Connect all power cords to a properly wired and grounded electrical outlet. •...
  • Page 12 The device also might have more than one power cord. To remove all electrical current from the device, ensure that all power cords are disconnected from the power source. ThinkCentre neo 50a 24 Gen 3 Hardware Maintenance Manual...
  • Page 13 Chapter 1 Important safety information...
  • Page 14 ≥18 kg (37 lb) ≥32 kg (70.5 lb) ≥55 kg (121.2 lb) ThinkCentre neo 50a 24 Gen 3 Hardware Maintenance Manual...
  • Page 15 PERIGO A corrente elétrica proveniente de cabos de alimentação, de telefone e de comunicações é perigosa. Para evitar risco de choque elétrico: • Não conecte nem desconecte nenhum cabo ou execute instalação, manutenção ou reconfiguração deste produto durante uma tempestade com raios. •...
  • Page 16 O dispositivo também pode ter mais de um cabo de alimentação. Para remover toda a corrente elétrica do dispositivo, assegure que todos os cabos de alimentação estejam desconectados da fonte de alimentação. ThinkCentre neo 50a 24 Gen 3 Hardware Maintenance Manual...
  • Page 17 Chapter 1 Important safety information...
  • Page 18 ThinkCentre neo 50a 24 Gen 3 Hardware Maintenance Manual...
  • Page 19 Chapter 1 Important safety information...
  • Page 20 • Lorsque vous installez, que vous déplacez, ou que vous manipulez le présent produit ou des périphériques qui lui sont raccordés, reportez-vous aux instructions ci-dessous pour connecter et déconnecter les différents cordons. ThinkCentre neo 50a 24 Gen 3 Hardware Maintenance Manual...
  • Page 21 Connexion Déconnexion 1. Mettez les unités HORS TENSION. 1. Mettez les unités HORS TENSION. 2. Commencez par brancher tous les cordons sur les 2. Débranchez les cordons d'alimentation des prises. unités. 3. Débranchez les câbles d'interface des connecteurs. 3. Branchez les câbles d'interface sur des 4.
  • Page 22 • Alle angeschlossenen Geräte ebenfalls an Schutzkontaktsteckdosen mit ordnungsgemäß geerdetem Schutzkontakt anschließen. • Die Signalkabel nach Möglichkeit einhändig anschließen oder lösen, um einen Stromschlag durch Berühren von Oberflächen mit unterschiedlichem elektrischem Potenzial zu vermeiden. ThinkCentre neo 50a 24 Gen 3 Hardware Maintenance Manual...
  • Page 23 • Geräte niemals einschalten, wenn Hinweise auf Feuer, Wasser oder Gebäudeschäden vorliegen. • Die Verbindung zu den angeschlossenen Netzkabeln, Telekommunikationssystemen, Netzwerken und Modems ist vor dem Öffnen des Gehäuses zu unterbrechen, sofern in den Installations- und Konfigurationsprozeduren keine anders lautenden Anweisungen enthalten sind. •...
  • Page 24 Mit dem Netzschalter an der Einheit und am Netzteil wird die Stromversorgung für die Einheit nicht unterbrochen. Die Einheit kann auch mit mehreren Netzkabeln ausgestattet sein. Um die Stromversorgung für die Einheit vollständig zu unterbrechen, müssen alle zum Gerät führenden Netzkabel vom Netz getrennt werden. ThinkCentre neo 50a 24 Gen 3 Hardware Maintenance Manual...
  • Page 25 Chapter 1 Important safety information...
  • Page 26 PERICOLO La corrente elettrica proveniente dai cavi di alimentazione, del telefono e di comunicazione può essere pericolosa. ThinkCentre neo 50a 24 Gen 3 Hardware Maintenance Manual...
  • Page 27 Per evitare il rischio di scosse elettriche: • Non collegare o scollegare qualsiasi cavo oppure effettuare l'installazione, la manutenzione o la riconfigurazione del prodotto durante un temporale. • Collegare tutti i fili elettrici a una presa di alimentazione correttamente cablata e dotata di messa a terra.
  • Page 28 E' possibile che l'unità disponga di più cavi di alimentazione. Per disattivare l'alimentazione dall'unità, accertarsi che tutti i cavi di alimentazione siano scollegati dalla fonte di alimentazione. ThinkCentre neo 50a 24 Gen 3 Hardware Maintenance Manual...
  • Page 29 Chapter 1 Important safety information...
  • Page 30 • No conecte ni desconecte los cables ni realice ninguna tarea de instalación, mantenimiento o reconfiguración de este producto durante una tormenta eléctrica. • Conecte todos los cables de alimentación a tomas de corriente debidamente cableadas y conectadas a tierra. ThinkCentre neo 50a 24 Gen 3 Hardware Maintenance Manual...
  • Page 31 • Cualquier equipo que se conecte a este producto también debe conectarse a tomas de corriente debidamente cableadas. • Siempre que sea posible, utilice una sola mano para conectar o desconectar los cables de señal. • No encienda nunca un equipo cuando hay señales de fuego, agua o daños estructurales. •...
  • Page 32 Para suprimir toda la corriente eléctrica del dispositivo, asegúrese de que todos los cables de alimentación estén desconectados de la toma de corriente. ThinkCentre neo 50a 24 Gen 3 Hardware Maintenance Manual...

  • Page 33: Chapter 2. Important Service Information

    • Do not drop a system board or apply any excessive force to it. • Avoid rough handling of any kind. • Avoid bending a system board and hard pushing to prevent cracking at each Ball Grid Array (BGA) chipset. © Copyright Lenovo 2022...

  • Page 34: How To Use Error Codes

    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 35: Chapter 3. Product Overview

    Description Item Item Infrared (IR) camera, AI camera or Integrated Multi-touch screen* camera* Switch button Power button Internal speaker USB-A 3.2 Gen 1 connector Optical drive activity indicator* Optical drive eject button* * for selected models © Copyright Lenovo 2022...

  • Page 36: Rear

    Ethernet connector HDMI out connector USB-A 2.0 connector ® Always On USB-A 3.2 Gen 2 connector USB-C (3.2 Gen 2) connectors USB-C (power) connector (with USB 2.0 data Security-lock slot transfer rate) ThinkCentre neo 50a 24 Gen 3 Hardware Maintenance Manual...

  • Page 37: Chapter 4. Service Checkout And Symptom-To-Fru Index

    • Machine type and model • Processor or hard disk drive upgrades • Failure symptom – Do diagnostics indicate a failure? – What, when, where, single, or multiple systems? – Is the failure repeatable? – Has this configuration ever worked? © Copyright Lenovo 2022...

  • Page 38: Symptom-To-Fru Index

    Check the configuration and ensure that the start-up drive configuration. is in the boot sequence. No operating system installed on the boot drive. Install an operating system on the boot drive. ThinkCentre neo 50a 24 Gen 3 Hardware Maintenance Manual...

  • Page 39: Power Supply Problems

    Error FRU/Action The boot sector on the startup drive is corrupted. The drive must be formatted. Do the following: 1. Attempt to back up the data on the failing hard disk drive. 2. Using the operating system programs, format the hard disk drive.

  • Page 40: Post Error Codes

    Press F10 to exit. 1762 Storage device configuration change This error message is displayed has occurred when a hard disk drive change or an optical drive change has been made. Press F10 to exit. ThinkCentre neo 50a 24 Gen 3 Hardware Maintenance Manual...

  • Page 41: Miscellaneous Error Conditions

    POST error message Description/Action Error code 8998 Not enough shadow RAM resources This error message is displayed for OPTION ROM, not all devices when the shadow RAM resources initialized. Suggest to remove some for option ROM are insufficient. add-on cards, or change to UEFI If the legacy option ROM is mode in BIOS setup.
  • Page 42 First device - network b. Second device - hard disk 2. Hard disk drive RPL computer does not RPL from server 1. Check the startup sequence. 2. Check the network adapter LED status. ThinkCentre neo 50a 24 Gen 3 Hardware Maintenance Manual...

  • Page 43: Undetermined Problems

    Message/Symptom FRU/Action Serial or parallel connector device failure (system board 1. External Device Self-Test OK? connector) 2. External Device 3. Cable 4. System Board Serial or parallel connector device failure (adapter 1. External Device Self-Test OK? connector) 2. External Device 3.
  • Page 44 ThinkCentre neo 50a 24 Gen 3 Hardware Maintenance Manual...

  • Page 45: Chapter 5. Diagnostics

    4. Run the diagnostic program. 5. Recover your operating system. See “Self-help resources” on page 40. 6. If the problem persists, contact Lenovo. UEFI diagnostic program A UEFI diagnostic program is preinstalled on the computer. It enables you to test memory modules and internal storage devices, view system information, and check and recover bad sectors on internal storage devices.

  • Page 46: Lenovo Diagnostic Tools

    If you are unable to isolate and resolve the problem after running the Vantage app, save and print the log files created by the program. You might need the log files when you speak to a Lenovo technical support representative.
  • Page 47 • Setup Guide want. • This User Guide • Regulatory Notice Lenovo Support Web site with the latest support information of the following: • Drivers and software • Diagnostic solutions https://pcsupport.lenovo.com • Product and service warranty •...
  • Page 48 ThinkCentre neo 50a 24 Gen 3 Hardware Maintenance Manual...

  • Page 49: Chapter 6. Hardware Removal And Installation

    Common tool Isolated tweezers Common tool Hexagonal socket Common tool Silicone grease Consumable tool Polyamide tape Consumable tool Mylar tape Consumable tool Eraser Consumable tool Electrical tape Consumable tool Double-sided tape Consumable tool Conductive tape Consumable tool © Copyright Lenovo 2022...

  • Page 50: Major Frus And 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. ThinkCentre neo 50a 24 Gen 3 Hardware Maintenance Manual...
  • Page 51 Chapter 6 Hardware removal and installation...
  • Page 52 Power cord Mouse* Keyboard* Front bezel LCD panel 2.5-inch hard disk drive foil* 2.5-inch hard disk drive* 2.5-inch hard disk drive cable* Backlight cable Touch cable* LVDS cable Rear cover bump ThinkCentre neo 50a 24 Gen 3 Hardware Maintenance Manual...
  • Page 53 Power supply unit socket bracket Gaskets Heat sink thermal pads Speaker screws * For selected models For detailed FRU and CRU information, such as the FRU part numbers and supported computer models, go http://www.lenovo.com/serviceparts-lookup Chapter 6 Hardware removal and installation...

  • Page 54: System Board

    Camera connector USB board connector Memory slot (DIMM1) Memory slot (DIMM2) Microprocessor 40–pin LVDS connector ( reserved ) Internal speaker connector 30–pin LVDS connector ( reserved ) Power switch board connector ThinkCentre neo 50a 24 Gen 3 Hardware Maintenance Manual...

  • Page 55: Removing And Installing Hardware

    Description Description LVDS connector (for FHD models) Backlight connector Coin-cell battery connector Coin-cell battery Removing and installing hardware This section provides instructions on how to remove and install hardware for your computer. You can expand the capabilities of your computer and maintain your computer by removing or installing hardware. Attention: Do not open your computer or attempt any repair before reading and understanding the Chapter 1 “Important safety information”...

  • Page 56: Rear Cover

    Before you start, read Generic Safety and Compliance Notices, and print the following instructions. Before you open the computer cover, turn off the computer and wait several minutes until the computer is cool. ThinkCentre neo 50a 24 Gen 3 Hardware Maintenance Manual...

  • Page 57: Usb Board

    For access, do the following: 1. Turn off the computer and remove all connected devices and cables. 2. Unlock any locking device that secures the computer cover. 3. Place a soft, clean towel or cloth on the desk or surface. Hold the sides of your computer and gently lay it down so that the screen is against the surface and the computer cover is facing up.

  • Page 58: System Board Shielding

    Before you open the computer cover, turn off the computer and wait several minutes until the computer is cool. For access, do the following: 1. Turn off the computer and remove all connected devices and cables. 2. Unlock any locking device that secures the computer cover. ThinkCentre neo 50a 24 Gen 3 Hardware Maintenance Manual...
  • Page 59 3. Place a soft, clean towel or cloth on the desk or surface. Hold the sides of your computer and gently lay it down so that the screen is against the surface and the computer cover is facing up. 4. Remove the computer stand. See “Computer stand” on page 49. 5.

  • Page 60: M.2 Solid-State Drive And Thermal Pad

    • Do not attempt to replace the Intel Optane memory in the M.2 solid-state drive slot. Replacement of the Intel Optane memory must be done by a Lenovo-authorized repair facility or technician. • The internal storage drive is sensitive. Inappropriate handling might cause damage and permanent loss of data.

  • Page 61: Wi-Fi Card

    Removal steps Note: Remove the film that covers the thermal pad (if any) when installing the M.2 solid-state drive. Wi-Fi card Prerequisite Before you start, read Generic Safety and Compliance Notices, and print the following instructions. Before you open the computer cover, turn off the computer and wait several minutes until the computer is cool.
  • Page 62 4. Remove the computer stand. See “Computer stand” on page 49. 5. Remove the rear cover. See “Rear cover ” on page 50. 6. Remove the system board shielding. See “System board shielding” on page 52. Removal steps ThinkCentre neo 50a 24 Gen 3 Hardware Maintenance Manual...

  • Page 63: Memory Module And Shielding

    Memory module and shielding Prerequisite Before you start, read Generic Safety and Compliance Notices, and print the following instructions. Attention: Do not touch the contact edge of the memory module. Otherwise, the memory module might get damaged. For access, do the following: 1.

  • Page 64: Heat Sink And Gaskets

    For access, remove the following parts in order: • Remove the computer stand. See “Computer stand” on page 49. • Remove the rear cover. See “Rear cover ” on page 50. ThinkCentre neo 50a 24 Gen 3 Hardware Maintenance Manual...

  • Page 65: Speaker

    • Remove the system board shielding. See “System board shielding” on page 52. Removal steps Notes: • Carefully remove the screws from the system board to avoid any possible damage to the system board. The screws cannot be removed from the heat sink. •...

  • Page 66: Power Supply Unit

    1. Remove the computer stand. See “Computer stand” on page 49. 2. Remove the rear cover. See “Rear cover ” on page 50. 3. Remove the system board shielding. See “System board shielding” on page 52. ThinkCentre neo 50a 24 Gen 3 Hardware Maintenance Manual...

  • Page 67: Power Switch Board

    Removal steps Power switch board Prerequisite Before you start, read Generic Safety and Compliance Notices, and print the following instructions. Before you open the computer cover, turn off the computer and wait several minutes until the computer is cool. For access, do the following: 1.

  • Page 68: System Board

    • Each computer has a unique Vital Product Data (VPD) code stored in the nonvolatile memory on the system board. After you replace the system board, the VPD must be updated. ThinkCentre neo 50a 24 Gen 3 Hardware Maintenance Manual...

  • Page 69: Fan

    Removal steps Prerequisite Before you start, read Generic Safety and Compliance Notices, and print the following instructions. Before you open the computer cover, turn off the computer and wait several minutes until the computer is cool. For access, remove the following parts in order: •...

  • Page 70: Optical Drive Housing

    • Remove the memory module and thermal pad. See “Memory module and shielding” on page 57. • Remove the heat sink and gaskets. See “Heat sink and gaskets” on page 58. • Remove the system board. See “System board” on page 62. ThinkCentre neo 50a 24 Gen 3 Hardware Maintenance Manual...

  • Page 71: 2.5-Inch Hard Disk Drive

    Removal steps 2.5-inch hard disk drive Prerequisite Before you start, read Generic Safety and Compliance Notices, and print the following instructions. Attention: The internal storage drive is sensitive. Inappropriate handling might cause damage and permanent loss of data. When handling the internal storage drive, observe the following guidelines: •...

  • Page 72: 2.5-Inch Hard Disk Drive Foil

    • Remove the computer stand. See “Computer stand” on page 49. • Remove the rear cover. See “Rear cover ” on page 50. • Remove the system board shielding. See “System board shielding” on page 52. ThinkCentre neo 50a 24 Gen 3 Hardware Maintenance Manual...

  • Page 73: Optical Drive, Bracket And Bezel

    • Remove the M.2 solid-state drive and thermal pad. See “M.2 solid-state drive and thermal pad” on page • Remove the Wi-Fi card. See “Wi-Fi card” on page 55. • Remove the memory module and thermal pad. See “Memory module and shielding” on page 57. •...

  • Page 74: Optical Drive Board

    For access, remove the following parts in order: • Remove the computer stand. See “Computer stand” on page 49. • Remove the rear cover. See “Rear cover ” on page 50. ThinkCentre neo 50a 24 Gen 3 Hardware Maintenance Manual...

  • Page 75: Rear Cover Bump

    • Remove the system board shielding. See “System board shielding” on page 52. • Remove the M.2 solid-state drive and thermal pad. See “M.2 solid-state drive and thermal pad” on page • Remove the Wi-Fi card. See “Wi-Fi card” on page 55. •...

  • Page 76: Microphone Module

    Before you open the computer cover, turn off the computer and wait several minutes until the computer is cool. For access, remove the following parts in order: • Remove the computer stand. See “Computer stand” on page 49. ThinkCentre neo 50a 24 Gen 3 Hardware Maintenance Manual...

  • Page 77: Camera Module

    • Remove the rear cover. See “Rear cover ” on page 50. • Remove the USB board. See “USB board” on page 51. • Remove the system board shielding. See “System board shielding” on page 52. • Remove the M.2 solid-state drive and thermal pad. See “M.2 solid-state drive and thermal pad” on page •...
  • Page 78 • Remove the optical drive housing. See “Optical drive housing” on page 64. • Remove the rear cover bump. See “Rear cover bump” on page 69. • Remove the microphone module. See “Microphone module” on page 70. Removal steps ThinkCentre neo 50a 24 Gen 3 Hardware Maintenance Manual...
  • Page 79 Chapter 6 Hardware removal and installation...

  • Page 80: Main Frame

    • Remove the memory module and thermal pad. See “Memory module and shielding” on page 57. • Remove the heat sink and gaskets. See “Heat sink and gaskets” on page 58. • Remove the speaker. See “Speaker” on page 59. ThinkCentre neo 50a 24 Gen 3 Hardware Maintenance Manual...

  • Page 81: Front Bezel

    • Remove the power supply unit. See “Power supply unit” on page 60. • Remove the power switch board. See “Power switch board” on page 61. • Remove the system board. See “System board” on page 62. • Remove the fan. See “Fan” on page 63. •...
  • Page 82 • Remove the optical drive housing. See “Optical drive housing” on page 64. • Remove the rear cover bump. See “Rear cover bump” on page 69. • Remove the main frame. See “Main frame” on page 74. Removal steps ThinkCentre neo 50a 24 Gen 3 Hardware Maintenance Manual...

  • Page 83: Chapter 7. Notices And Trademarks

    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 84 Actual results may vary. Users of this document should verify the applicable data for their specific environment. This document is copyrighted by Lenovo and is not covered by any open source license, including any Linux agreement(s) which may accompany software included with this product. Lenovo may update this document at any time without notice.

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