Lenovo ThinkCentre M70a Gen 3 Hardware Maintenance Manual
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Lenovo ThinkCentre M70a Gen 3 Hardware Maintenance Manual

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  • Page 1 ThinkCentre M70a Gen 3 Hardware Maintenance Manual...
  • Page 2 First Edition (March 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

    Diagnostics ....Handling electrostatic discharge-sensitive Lenovo diagnostic tools ..devices ....4 UEFI diagnostic program .
  • Page 4 ....91 Middle frame ....ThinkCentre M70a 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 M70a 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 back bump 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 touch live electrical circuits with the reflective surface of a plastic dental mirror. The surface is conductive; such touching can cause personal injury and machine damage. ThinkCentre M70a Gen 3 Hardware Maintenance Manual...

  • Page 9: Safety Inspection Guide

    • Do not service the following parts with the power on when they are removed from their normal operating places in a machine: – Power supply units – Pumps – Blowers and fans – Motor generators and similar units. (This practice ensures correct grounding of the units.) •...

  • 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 ThinkCentre M70a Gen 3 Hardware Maintenance Manual...
  • Page 11 • Italian • Korean • 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. •...
  • 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 M70a 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 M70a 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 M70a Gen 3 Hardware Maintenance Manual...
  • Page 17 Chapter 1 Important safety information...
  • Page 18 ThinkCentre M70a Gen 3 Hardware Maintenance Manual...
  • Page 19 Chapter 1 Important safety information...
  • Page 20 (sauf instruction contraire mentionnée dans les procédures d'installation et de configuration). • 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 M70a 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 • Die Signalkabel nach Möglichkeit einhändig anschließen oder lösen, um einen Stromschlag durch Berühren von Oberflächen mit unterschiedlichem elektrischem Potenzial zu vermeiden. • Geräte niemals einschalten, wenn Hinweise auf Feuer, Wasser oder Gebäudeschäden vorliegen. ThinkCentre M70a Gen 3 Hardware Maintenance Manual...
  • Page 23 • 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. • Zum Installieren, Transportieren und Öffnen der Abdeckungen des Computers oder der angeschlossenen Einheiten die Kabel gemäß...
  • 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 M70a 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. Per evitare il rischio di scosse elettriche: ThinkCentre M70a Gen 3 Hardware Maintenance Manual...
  • Page 27 • 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. • Collegare alle prese elettriche appropriate tutte le apparecchiature che verranno utilizzate per questo prodotto.
  • Page 28 Il pulsante di controllo dell'alimentazione presente sull'unità e l'interruttore dell'alimentatore non disattivano l'alimentazione corrente fornita all'unità. 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 M70a Gen 3 Hardware Maintenance Manual...
  • Page 29 Chapter 1 Important safety information...
  • Page 30 • 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. ThinkCentre M70a Gen 3 Hardware Maintenance Manual...
  • Page 31 • No encienda nunca un equipo cuando hay señales de fuego, agua o daños estructurales. • Desconecte los cables de alimentación, los sistemas de telecomunicaciones, las redes y los módems conectados antes de abrir las cubiertas de los dispositivos, a menos que se indique lo contrario en los procedimientos de instalación y configuración.
  • Page 32 Además, el dispositivo podría tener más de un cable de alimentación. Para suprimir toda la corriente eléctrica del dispositivo, asegúrese de que todos los cables de alimentación estén desconectados de la toma de corriente. ThinkCentre M70a 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

    7. USB 3.2 connectors Gen 2 8. Headset connector 9. SD-card slot* 10. Power button 11. System status indicator 12. Microphone mute/unmute indicator 14. Optical drive eject button* 13. Multi-touch screen* 15. Optical drive activity indicator* * for selected models © Copyright Lenovo 2022...

  • Page 36: Rear

    3. USB 3.2 connectors Gen 1 ™ 5. Ethernet connector 6. HDMI in 1.4/out 2.1 connector ™ 7. DisplayPort out connector 8. Serial connector* 9. Security-lock slot 10. Power connector * for selected models ThinkCentre M70a 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

    The start-up drive is not in the boot sequence in 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 M70a 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 M70a Gen 3 Hardware Maintenance Manual...

  • Page 41: Miscellaneous Error Conditions

    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 1. Check the startup sequence. 2. Check the network adapter LED status. Serial or parallel connector device failure (system board 1. External Device Self-Test OK? connector) 2. External Device 3. Cable 4. System Board ThinkCentre M70a Gen 3 Hardware Maintenance Manual...

  • Page 43: Undetermined Problems

    Message/Symptom FRU/Action Serial or parallel connector device failure (adapter 1. External Device Self-Test OK? connector) 2. External Device 3. Cable 4. Alternate Adapter 5. System Board Some or all keys on the keyboard do not work 1. Keyboard 2. Keyboard Cable 3.
  • Page 44 ThinkCentre M70a Gen 3 Hardware Maintenance Manual...

  • Page 45: Chapter 5. Troubleshooting And Diagnostics

    4. Run the diagnostic program. See “Diagnostics” on page 47. 5. Recover your operating system. See “Recovery” on page 48. 6. If the problem persists, contact Lenovo. Troubleshooting Use the troubleshooting information to find solutions to problems that have definite symptoms.

  • Page 46: Startup Problems

    – Ensure that the Optane memory is not damaged. Check the Optane memory using diagnostic tools. The computer beeps multiple times before Ensure that no keys are stuck. the operating system starts up. ThinkCentre M70a Gen 3 Hardware Maintenance Manual...

  • Page 47: Audio Problems

    Audio problems Problem Solution • If you are using powered external speakers that have an On/Off control, ensure that: – The On/Off control is set to the On position. – The speaker power cable is connected to a properly grounded, functional ac electrical outlet.
  • Page 48 • Enable the Wi-Fi feature in Windows Settings. 1. Open the Start menu. 2. Click Settings ➙ Network & Internet ➙ Wi-Fi. 3. Enable the Wi-Fi feature. • Update or reinstall the Wi-Fi driver. ThinkCentre M70a Gen 3 Hardware Maintenance Manual...
  • Page 49 Problem Solution • Enable the Bluetooth feature in UEFI BIOS. • Enable all Bluetooth devices. 1. Right-click the Start button to open the Start context menu. 2. Click Device Manager. Type the administrator password or provide confirmation if prompted. 3. Expand Bluetooth to display all Bluetooth devices. Right-click each Bluetooth device, and then click Enable device.

  • Page 50: Performance Problems

    Change or Uninstall. • Right-click a blank area on the taskbar and open Task Manager. The free memory space is insufficient. Then, end some tasks you are not performing. • Install additional memory modules. ThinkCentre M70a Gen 3 Hardware Maintenance Manual...

  • Page 51: Storage Drive Problems

    Storage drive problems Problem Solution • Ensure that the signal cables and power cables for all the storage drives are connected correctly. • Ensure that the computer is configured correctly to support the storage drives. Some or all storage drives are missing from –...

  • Page 52: Serial Connector Problems

    Refer to the documentation that comes with the USB device for more information. • Disconnect and reconnect the USB connector to reset the USB device. • Ensure that the Smart USB Protection function is disabled in UEFI BIOS. ThinkCentre M70a Gen 3 Hardware Maintenance Manual...

  • Page 53: Software Problems

    Use diagnostic solutions to test hardware components and report operating-system-controlled settings that interfere with the correct operation of your computer. Lenovo diagnostic tools For information about Lenovo diagnostic tools, go to: https://pcsupport.lenovo.com/lenovodiagnosticsolutions 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 54: The Vantage App

    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 55: Use Advanced Options

    Windows recovery programs are damaged. If you did not create a recovery USB drive as a precautionary measure, you can contact Lenovo Customer Support Center and purchase one from Lenovo. For a list of the Lenovo Support phone numbers for your country or region, go to: https://pcsupport.lenovo.com/supportphonelist Create a recovery USB drive Attention: The creation process deletes anything stored on the USB drive.

  • Page 56: Update The Device Driver

    • From Windows Update: Note: The device drivers provided by Windows Update might not be tested by Lenovo. It is recommended that you get device drivers from Lenovo. 1. Open the Start menu.

  • Page 57: 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 58: 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 M70a Gen 3 Hardware Maintenance Manual...
  • Page 59 Number Description Self-service CRU Optional-service LTPS full-function monitor stand* LTPS full-function monitor stand base* Camera and microphone module* Hard disk drive* Hard disk drive cable* Chapter 6 Hardware removal and installation...
  • Page 60 LVDS cable LCD backlight cable Side I/O cover to R Side I/O cover to L Serial connector module* SD card reader board* System board Microprocessor Coin-cell battery Heat sink Thermal pad* M.2 solid-state drive* ThinkCentre M70a Gen 3 Hardware Maintenance Manual...
  • Page 61 Dummy optical drive bezel* Mylar over the computer stand hole* UltraFlexV stand base* UltraFlexV stand* * 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 62: System Board

    Cover presence switch connector (intrusion switch SATA power connector connector) SATA power connector Power supply assembly connector Power supply assembly ID connector LVDS connector M.2 Wi-Fi card slot SATA connector Serial connector Memory slot (DIMM1) ThinkCentre M70a Gen 3 Hardware Maintenance Manual...

  • Page 63: Removing And Installing Hardware

    Memory slot (DIMM2) Internal speaker connector M.2 solid-state drive slot SD card reader 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 64 ThinkCentre M70a Gen 3 Hardware Maintenance Manual...
  • Page 65 • UltraFlex V Stand Chapter 6 Hardware removal and installation...

  • Page 66: Back Bump Cover

    Back bump cover Prerequisite Before you start, read Generic Safety and Compliance Notices, and print the following instructions. ThinkCentre M70a Gen 3 Hardware Maintenance Manual...

  • Page 67: System Board Shield

    Before you open the back bump 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 back bump cover. 3.

  • Page 68: Vesa Mount Bracket

    Before you open the back bump cover, turn off the computer and wait several minutes until the computer is cool. For access, remove the following parts in order: • “Computer stand” on page 57. • “Back bump cover” on page 60. • “System board shield” on page 61. ThinkCentre M70a Gen 3 Hardware Maintenance Manual...

  • Page 69: Hard Disk Drive And Cable

    Removal steps Hard disk drive and cable Prerequisite Before you start, read Generic Safety and Compliance Notices, and print the following instructions. Before you open the back bump cover, turn off the computer and wait several minutes until the computer is cool.
  • Page 70 For access, remove the following parts in order: • “Computer stand” on page 57. • “Back bump cover” on page 60. • “System board shield” on page 61. • “VESA mount bracket” on page 62. Removal steps ThinkCentre M70a Gen 3 Hardware Maintenance Manual...

  • Page 71: Second Hard Disk Drive And Cable

    Second hard disk drive and cable Prerequisite Before you start, read Generic Safety and Compliance Notices, and print the following instructions. Before you open the back bump cover, turn off the computer and wait several minutes until the computer is cool.
  • Page 72 For access, remove the following parts in order: • “Computer stand” on page 57. • “Back bump cover” on page 60. • “System board shield” on page 61. • “VESA mount bracket” on page 62. Removal steps ThinkCentre M70a Gen 3 Hardware Maintenance Manual...

  • Page 73: Heat Sink

    Heat sink Prerequisite Before you start, read Generic Safety and Compliance Notices, and print the following instructions. The heat sink might be very hot. Before you open the back bump cover, turn off the computer and wait several minutes until the computer is cool. For access, remove the following parts in order: •...

  • Page 74: Optical Drive And Optical Drive Bracket

    3. Remove the system board shield. See “System board shield” on page 61. 4. Remove the VESA mount bracket. See “VESA mount bracket” on page 62. 5. Disconnect the optical drive cable from the system board. ThinkCentre M70a Gen 3 Hardware Maintenance Manual...
  • Page 75 Removal steps Note: Some computer models might not be shipped with an optical drive. In this case, remove the dummy optical drive bezel first if you want to install a new optical drive. Chapter 6 Hardware removal and installation...

  • Page 76: System Fan

    Before you open the back bump cover, turn off the computer and wait several minutes until the computer is cool. For access, remove the following parts in order: • “Computer stand” on page 57. • “Back bump cover” on page 60. ThinkCentre M70a Gen 3 Hardware Maintenance Manual...

  • Page 77: Memory Module

    • “System board shield” on page 61. • “VESA mount bracket” on page 62. Removal steps Memory module Prerequisite Before you start, read Generic Safety and Compliance Notices, and print the following instructions. Before you open the back bump cover, turn off the computer and wait several minutes until the computer is cool.

  • Page 78: Wi-Fi Card

    For access, remove the following parts in order: • “Computer stand” on page 57. • “Back bump cover” on page 60. • “System board shield” on page 61. • “VESA mount bracket” on page 62. ThinkCentre M70a Gen 3 Hardware Maintenance Manual...

  • Page 79: Ac-In Bracket And Power Supply Assembly

    Removal steps AC-in bracket and power supply assembly Prerequisite Before you start, read Generic Safety and Compliance Notices, and print the following instructions. Although there are no moving parts in the computer after the power cord has been disconnected, the following warnings are required for your safety.
  • Page 80 For access, remove the following parts in order: • “Computer stand” on page 57. • “Back bump cover” on page 60. • “System board shield” on page 61. • “VESA mount bracket” on page 62. Removal steps ThinkCentre M70a Gen 3 Hardware Maintenance Manual...

  • Page 81: M.2 Solid-State Drive

    • 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 82: Sd Card Reader Board

    For access, remove the following parts in order: • “Computer stand” on page 57. • “Back bump cover” on page 60. • “System board shield” on page 61. • “VESA mount bracket” on page 62. ThinkCentre M70a Gen 3 Hardware Maintenance Manual...

  • Page 83: Serial Connector Module

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

  • Page 84: Camera And Microphone Module

    Note: Some computer models might not be shipped with an integrated camera. In this case, remove the dummy camera cover first if you want to install new camera. CAUTION: Do not pull out the integrated camera and microphone module cable with force; otherwise, the cable may be damaged. ThinkCentre M70a Gen 3 Hardware Maintenance Manual...

  • Page 85: Microprocessor

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

  • Page 86: System Board

    For access, do the following: 1. Remove these parts in order, if any: • “Computer stand” on page 57. • “Back bump cover” on page 60. ThinkCentre M70a Gen 3 Hardware Maintenance Manual...
  • Page 87 • “System board shield” on page 61. • “VESA mount bracket” on page 62. • “Heat sink” on page 67. • “System fan” on page 70. • “Memory module” on page 71. • “Wi-Fi card” on page 72. • “M.2 solid-state drive” on page 75. •...

  • Page 88: Coin-Cell Battery

    To dispose of the coin-cell battery, refer to the “Lithium coin-cell battery notice” in the Safety and Warranty Guide. For access, remove the following parts in order: • “System board” on page 80. ThinkCentre M70a Gen 3 Hardware Maintenance Manual...

  • Page 89: Left I/O Bracket And Right Bezel

    Removal steps Note: After installing a new coin-cell battery, reset the system date and time in the UEFI BIOS menu. Left I/O bracket and right bezel Prerequisite Before you start, read Generic Safety and Compliance Notices, and print the following instructions. For access, remove the following parts in order: •...

  • Page 90: Main Frame

    Before you start, read Generic Safety and Compliance Notices, and print the following instructions. For access, remove the following parts in order: • “Camera and microphone module” on page 78. • “System board” on page 80. • “Left I/O bracket and right bezel” on page 83. ThinkCentre M70a Gen 3 Hardware Maintenance Manual...

  • Page 91: Front Decorative Cover

    Removal steps Front decorative cover Prerequisite Before you start, read Generic Safety and Compliance Notices, and print the following instructions. For access, remove the following parts in order: • “System board” on page 80. • “Left I/O bracket and right bezel” on page 83. Chapter 6 Hardware removal and installation...

  • Page 92: Internal Speaker

    Before you start, read Generic Safety and Compliance Notices, and print the following instructions. For access, remove the following parts in order: • “System board” on page 80. • “Front decorative cover” on page 85. ThinkCentre M70a Gen 3 Hardware Maintenance Manual...

  • Page 93: Wi-Fi Antennas

    Removal steps Wi-Fi antennas Prerequisite Before you start, read Generic Safety and Compliance Notices, and print the following instructions. For access, remove the following parts in order: • “System board” on page 80. • “Left I/O bracket and right bezel” on page 83. •...

  • Page 94: Middle Frame

    Removal steps LCD backlight cable Prerequisite Before you start, read Generic Safety and Compliance Notices, and print the following instructions. For access, remove the following parts in order: • “Middle frame” on page 88. ThinkCentre M70a Gen 3 Hardware Maintenance Manual...

  • Page 95: Lvds Cable

    Removal steps LVDS cable Prerequisite Before you start, read Generic Safety and Compliance Notices, and print the following instructions. For access, remove the following parts in order: • “Middle frame” on page 88. Removal steps Chapter 6 Hardware removal and installation...

  • Page 96: Touch Cable

    Touch cable Prerequisite Before you start, read Generic Safety and Compliance Notices, and print the following instructions. For access, remove the following parts in order: • “Middle frame” on page 88. Removal steps ThinkCentre M70a Gen 3 Hardware Maintenance Manual...

  • Page 97: 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 98 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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