1. Manuals
  2. Brands
  3. Lenovo Manuals
  4. Desktop
  5. ThinkCentre E73z
  6. Hardware maintenance manual

Lenovo ThinkCentre E73z Hardware Maintenance Manual

Hide thumbs Also See for ThinkCentre E73z:
Table of Contents

Advertisement

Quick Links

Download this manual See also: User Manual
ThinkCentre E73z
Hardware Maintenance Manual
Machine Types: 10BD and 10BL

Advertisement

Table of Contents
loading

Related Manuals for Lenovo ThinkCentre E73z

Summary of Contents for Lenovo ThinkCentre E73z

  • Page 1 ThinkCentre E73z Hardware Maintenance Manual Machine Types: 10BD and 10BL...
  • Page 2 Appendix A “Notices” on page 115. Second Edition (January 2014) © Copyright Lenovo 2013, 2014. LIMITED AND RESTRICTED RIGHTS NOTICE: If data or software are delivered pursuant a General Services Administration “GSA” contract, use, reproduction, or disclosure is subject to restrictions set forth in Contract No.

  • Page 3: Table Of Contents

    Exiting the Setup Utility program ..Lenovo Support Web site ..Chapter 7. Symptom-to-FRU Index . . 59 Chapter 4. General checkout ..33 Hard disk drive boot error .
  • Page 4 Chapter 10. Additional service Index....information ... . . ThinkCentre E73z Hardware Maintenance Manual...

  • Page 5: Chapter 1. About This Manual

    Certifique-se de ler todas as instruções de cuidado e perigo neste manual antes de executar qualquer uma das instruções Es importante que lea todas las declaraciones de precaución y de peligro de este manual antes de seguir las instrucciones. © Copyright Lenovo 2013, 2014...
  • Page 6 ThinkCentre E73z Hardware Maintenance Manual...

  • Page 7: Chapter 2. Safety Information

    Electrical current from power, telephone, and communication cables can be hazardous. To avoid personal injury or equipment damage, disconnect the attached power cords, telecommunication systems, networks, and modems before you open the computer covers, unless instructed otherwise in the installation and configuration procedures. © Copyright Lenovo 2013, 2014...
  • Page 8 – 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. ThinkCentre E73z Hardware Maintenance Manual...

  • Page 9: Safety Inspection Guide

    – Send another person to get medical aid. Safety inspection guide The intent of this inspection guide is to assist you in identifying potentially unsafe conditions on these products. Each machine, as it was designed and built, had required safety items installed to protect users and service personnel from injury.

  • Page 10: Grounding Requirements

    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. ThinkCentre E73z Hardware Maintenance Manual...
  • Page 11 • Connect all power cords to a properly wired and grounded electrical outlet. • Connect to properly wired outlets any equipment that will be attached to this product. • When possible, use one hand only to connect or disconnect signal cables. •...
  • 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 E73z Hardware Maintenance Manual...
  • Page 13 Chapter 2 Safety information...
  • Page 14 ≥18 kg (37 lbs) ≥32 kg (70.5 lbs) ≥55 kg (121.2 lbs) PERIGO A corrente elétrica proveniente de cabos de alimentação, de telefone e de comunicações é perigosa. ThinkCentre E73z Hardware Maintenance Manual...
  • Page 15 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. • Conecte todos os cabos de alimentação a tomadas elétricas corretamente instaladas e aterradas. •...
  • 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 E73z Hardware Maintenance Manual...
  • Page 17 Chapter 2 Safety information...
  • Page 18 ThinkCentre E73z Hardware Maintenance Manual...
  • Page 19 Chapter 2 Safety information...
  • Page 20 • l'exposer à des températures supérieures à 100°C, • chercher à la réparer ou à la démonter. Ne pas mettre la pile à la poubelle. Pour la mise au rebut, se reporter à la réglementation en vigueur. ThinkCentre E73z Hardware Maintenance Manual...
  • Page 21 ATTENTION: Si des produits à laser (tels que des unités de CD-ROM, de DVD-ROM, des unités à fibres optiques, ou des émetteurs) sont installés, prenez connaissance des informations suivantes : • Ne retirez pas le carter. En ouvrant l'unité de CD-ROM ou de DVD-ROM, vous vous exposez au rayonnement dangereux du laser.
  • Page 22 Lithiumbatterie, dieses nur durch ein Modul desselben Typs und von demselben Hersteller ersetzen. Die Batterie enthält Lithium und kann bei unsachgemäßer Verwendung, Handhabung oder Entsorgung explodieren. Die Batterie nicht: • mit Wasser in Berührung bringen. ThinkCentre E73z Hardware Maintenance Manual...
  • Page 23 • über 100 C erhitzen. • reparieren oder zerlegen. Die örtlichen Bestimmungen für die Entsorgung von Sondermüll beachten. ACHTUNG: Bei der Installation von Lasergeräten (wie CD-ROM-Laufwerken, DVD- aufwerken, Einheiten mit Lichtwellenleitertechnik oder Sendern) Folgendes beachten: • Die Abdeckungen nicht entfernen. Durch Entfernen der Abdeckungen des Lasergeräts können gefährliche Laserstrahlungen freigesetzt werden.
  • Page 24 ThinkCentre E73z Hardware Maintenance Manual...
  • Page 25 Chapter 2 Safety information...
  • Page 26 • Riscaldarla ad una temperatura superiore ai 100 gradi C (212 gradi F) • Smontarla, ricaricarla o tentare di ripararla Le batterie usate vanno smaltite in accordo alla normativa in vigore (DPR 915/82 e successive disposizioni e disposizioni locali). ThinkCentre E73z Hardware Maintenance Manual...
  • Page 27 ATTENZIONE: Quando vengono installati prodotti laser (quali CD-ROM, unità DVD-ROM, unità a fibre ottiche o trasmittenti), tener presente quanto segue: • Non rimuovere gli sportelli. L'apertura di un'unità laser può determinare l'esposizione a radiazioni laser pericolose. All'interno dell'unità non vi sono parti su cui effettuare l'assistenza tecnica. •...
  • Page 28 ThinkCentre E73z Hardware Maintenance Manual...
  • Page 29 PELIGRO La corriente eléctrica procedente de cables de alimentación, teléfonos y cables de comunicación puede ser peligrosa. Para evitar el riesgo de descarga eléctrica: • No conecte ni desconecte los cables ni realice ninguna tarea de instalación, mantenimiento o reconfiguración de este producto durante una tormenta eléctrica. •...
  • Page 30 • No quite las cubiertas. Si quita las cubiertas del producto láser, podría quedar expuesto a radiación láser peligrosa. Dentro del dispositivo no existe ninguna pieza que requiera servicio técnico. • Si usa controles o ajustes o realiza procedimientos que no sean los especificados aquí, podría exponerse a radiaciones peligrosas. PELIGRO ThinkCentre E73z Hardware Maintenance Manual...
  • Page 31 Algunos productos láser tienen incorporado un diodo láser de clase 3A o clase 3B. Tenga en cuenta lo siguiente: Cuando se abre, queda expuesto a radiación láser. No mire directamente al rayo láser, ni siquiera con instrumentos ópticos, y evite exponerse directamente al rayo láser. ≥18 kg ≥32 kg ≥55 kg...
  • Page 32 ThinkCentre E73z Hardware Maintenance Manual...

  • Page 33: Chapter 3. General Information

    Maximum: 240 V ac Input frequency range: 50 to 60 Hz Lenovo programs Your computer comes with Lenovo programs to help you work more easily and securely. Depending on the Windows operating system preinstalled, the programs might vary. © Copyright Lenovo 2013, 2014...

  • Page 34: Accessing Lenovo Programs On The Windows 7 Operating System

    Note: If you do not find the program you need in Control Panel, open the Lenovo ThinkVantage Tools program navigation window and double-click the dimmed icon to install the program you need. Then, follow the instructions on the screen.

  • Page 35: Accessing Lenovo Programs On The Windows 8 Or Windows 8.1 Operating System

    • On the Windows 8.1 operating system, press the Windows key to go to the Start screen. Click a Lenovo program to launch it. If you cannot find the program you need, click the arrow icon in the bottom-left corner of the screen to go to the Apps screen. Find the desired program in the apps list or search for it in the search box in the top-right corner of the screen.
  • Page 36 ThinkCentre E73z Hardware Maintenance Manual...

  • Page 37: Chapter 4. General Checkout

    Service Support and Engineering functions. • 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? © Copyright Lenovo 2013, 2014...
  • Page 38 7. Have the same configuration options set in the system 8. Have the same setup for the operating system control files Comparing the configuration and software set-up between “working and non-working” systems will often lead to problem resolution. ThinkCentre E73z Hardware Maintenance Manual...

  • Page 39: Chapter 5. Troubleshooting And Diagnostics

    Chapter 5. Troubleshooting and diagnostics This chapter provides information about diagnosing and troubleshooting computer problems. If your computer problem is not described here, see “Lenovo Support Web site” on page 31 for additional troubleshooting resources. Basic troubleshooting The following table provides information to help you troubleshoot your computer problems.

  • Page 40: Accessing Control Panel On The Windows 8 Or Windows 8.1 Operating System

    To restore a captured configuration, do the following: • For Windows 7: Click Start ➙ Control Panel ➙ System and Security ➙ System ➙ System Protection ➙ System Restore. ThinkCentre E73z Hardware Maintenance Manual...

  • Page 41: Troubleshooting

    • If the diagnostic program detects a hardware failure, contact the Lenovo Customer Support Center. See “Lenovo Support Web site” on page 31 for more information. • If you are unable to run the diagnostic program, contact the Lenovo Customer Support Center. See “Lenovo Support Web site” on page 31 for more information.
  • Page 42 • Verify that the audio device drivers are correctly installed. See Microsoft Windows help system for more information. If these actions do not correct the problem, run the Lenovo Solution Center program. If you need technical assistance, see “Lenovo Support Web site” on page 31.

  • Page 43: Cd Problems

    Refer to the documentation that comes with the application or game for instructions on setting sound-card settings. • If these actions do not correct the problem, run the Lenovo Solution Center program. If you need technical assistance, see “Lenovo Support Web site” on page 31.

  • Page 44: Dvd Problems

    Note that on some models the startup sequence is permanently set and cannot be changed. If these actions do not correct the problem, run the Lenovo Solution Center program. If you need technical assistance, see “Lenovo Support Web site” on page 31.

  • Page 45: Intermittent Problems

    • Use the DVD menu for the video to select a different audio track. If these actions do not correct the problem, run the Lenovo Solution Center program. If you need technical assistance, see “Lenovo Support Web site” on page 31.

  • Page 46: Keyboard, Mouse, Or Pointing Device Problems

    If these actions do not correct the problem, run the diagnostic program Lenovo Solution Center. See “Lenovo Solution Center” on page 54. If you need technical assistance, see “Lenovo Support Web site” on page 31. “No Operating System Found” message or the system not starting from the correct hard disk drive Symptom: "No Operating System Found"...
  • Page 47 • If you are using a USB keyboard or mouse, verify that the USB connectors are enabled in the BIOS settings. See “Enabling or disabling a device” on page 57. If these actions do not correct the problem, run the Lenovo Solution Center program. If you need technical assistance, see “Lenovo Support Web site” on page 31.

  • Page 48: Monitor Problems

    • “The monitor works when you turn on the computer, but goes blank when you start some application programs” on page 45 • “The image appears to be flickering” on page 45 • “The image is discolored” on page 46 ThinkCentre E73z Hardware Maintenance Manual...
  • Page 49 If these actions do not correct the problem, run the Lenovo Solution Center program. If you need technical assistance, see “Lenovo Support Web site” on page 31.

  • Page 50: Networking Problems

    • See your operating system documentation or help for further information on monitor settings. If these actions do not correct the problem, your monitor might need service. See “Lenovo Support Web site” on page 31 for details.
  • Page 51 • The cable is installed properly. • You are using the correct device driver. On the Windows 7 operating system, do the following: 1. Click Start ➙ Control Panel. 2. Click Hardware and Sound. 3. Click Device Manager. If you are prompted for an administrator password or confirmation, type the password or provide confirmation.

  • Page 52: Option Problems

    If you are using the AV profile, select Stereo Audio and click the Set Default button. 6. Click OK to close the Sound window. Option problems Use this information to diagnose problems with Lenovo hardware options that do not have their own troubleshooting information. Select your symptom from the following list: •...

  • Page 53: Performance And Lockup Problems

    See the documentation supplied with the adapter (as well as the documentation for any other installed adapters) to determine the resources required for each adapter. If these actions do not correct the problem, run the Lenovo Solution Center program. If you need technical assistance, see “Lenovo Support Web site” on page 31.
  • Page 54 Note: Depending on the size of the hard disk drive and amount of data currently stored on the hard disk drive, the disk-defragmentation process might take up to several hours to complete. On the Windows 7 operating system, do the following: ThinkCentre E73z Hardware Maintenance Manual...

  • Page 55: Printer Problems

    31. For step-by-step instructions on installing memory, see “Installing or replacing a memory module” on page 97. If these actions do not correct the problem, run the diagnostic programs (see “Lenovo Solution Center” on page 54 for instructions). If you need technical assistance, see “Lenovo Support Web site” on page 31.

  • Page 56: Software Problems

    • Ensure that the serial-port adapter, if you added one, is properly installed and firmly seated. If these actions do not correct the problem, run the Lenovo Solution Center program. If you need technical assistance, see “Lenovo Support Web site” on page 31.

  • Page 57: Usb Problems

    • Reset the device by detaching and reattaching the USB connector. If these actions do not correct the problem, run the Lenovo Solution Center program to test the USB connector. If the USB device came with its own diagnostics, run those diagnostics against the USB device.

  • Page 58: Lenovo Solution Center

    Note: If you are unable to isolate and repair the problem yourself after running the program, save and print the log files. You will need the log files when you speak to a Lenovo technical support representative. ThinkCentre E73z Hardware Maintenance Manual...

  • Page 59: Copyright Lenovo 2013, 2014

    Using passwords By using the Setup Utility program, you can set passwords to prevent unauthorized access to your computer and data. The following types of passwords are available: • Power-On Password © Copyright Lenovo 2013, 2014...

  • Page 60: Password Considerations

    Note: A password can be any combination of up to 64 alphabetic and numeric characters. For more information, see “Password considerations” on page 56. Erasing lost or forgotten passwords (clearing CMOS) This section provides instructions on how to erase lost or forgotten passwords, such as a user password. ThinkCentre E73z Hardware Maintenance Manual...

  • Page 61: Enabling Or Disabling A Device

    To erase a lost or forgotten password, do the following: 1. Remove all media from the drives and turn off all attached devices and the computer. Then, disconnect all power cords from electrical outlets and disconnect all cables that are connected to the computer. 2.

  • Page 62: Selecting A Temporary Startup Device

    When the Reset Without Saving window shows, select Yes, and then press Enter to exit the Setup Utility program. • If you want to return to the default settings, press F9 to load the default settings, and then press F10 to save and exit the Setup Utility program. ThinkCentre E73z Hardware Maintenance Manual...

  • Page 63: Chapter 7. Symptom-To-Fru Index

    Check the power cord for continuity. Power cord Check the power-on switch for continuity. Power-on switch Beep symptoms Beep symptoms are tones or a series of tones separated by pauses (intervals without sound) during POST. © Copyright Lenovo 2013, 2014...

  • Page 64: Post Error Codes

    0164 Memory size decreased Press F10 to exit. 1762 Configuration change has occurred This error message is displayed when a hard disk drive or optical drive change has been made. Press F10 to exit. ThinkCentre E73z Hardware Maintenance Manual...

  • Page 65: Miscellaneous Error Conditions

    Error code POST error message Description/Action 1820 More than one external fingerprint If more than one external fingerprint reader are attached. Power off and reader are connected to a computer, remove all but the reader that you set this error message will be displayed up within your main operating system.
  • Page 66 RPL computer does not RPL from server 1. Check startup sequence. 2. Check the network adapter LED status. Serial or parallel port device failure (system board port) 1. External Device Self-Test OK? 2. External Device 3. Cable 4. System Board ThinkCentre E73z Hardware Maintenance Manual...

  • Page 67: Undetermined Problems

    Message/Symptom FRU/Action Serial or parallel port device failure (adapter port) 1. External Device Self-Test OK? 2. External Device 3. Cable 4. Alternate Adapter 5. System Board 1. Keyboard Some or all keys on the keyboard do not work 2. Keyboard Cable 3.
  • Page 68 ThinkCentre E73z Hardware Maintenance Manual...

  • Page 69: Chapter 8. Locations

    Figure 1. Front connector, control, and indicator locations Integrated microphone Card reader (available in some models) Integrated camera indicator USB 3.0 connector (USB port 2) Integrated camera Headphone connector Power on indicator Microphone connector Internal speaker USB 3.0 connector (USB port 1) © Copyright Lenovo 2013, 2014...

  • Page 70: Locating Connectors On The Rear Of Your Computer

    Figure 3 “Locating major FRUs and CRUs” on page 67 shows the locations of the major FRUs and CRUs in the computer. To remove the computer cover, see “Removing the computer cover” on page 75. ThinkCentre E73z Hardware Maintenance Manual...
  • Page 71 Figure 3. Locating major FRUs and CRUs Chapter 8 Locations...
  • Page 72 Wi-Fi Foot stand Rear I/O assembly Internal speaker Power supply Internal speaker Foot stand Control button board Hard disk drive Hard-disk-drive EMI shield LCD converter board Optical drive VESA mount bracket Integrated camera Keyboard Mouse ThinkCentre E73z Hardware Maintenance Manual...

  • Page 73: Looking Up Fru Information

    Looking up FRU information For detailed FRU information, such as the FRU part numbers and supported computer models, go to: http:/www.lenovo.com/serviceparts-lookup Locating parts on the system board Figure 4 “Locations of the parts and connectors on the system board” on page 69 shows the locations of the parts and connectors on the system board.
  • Page 74 Mini PCI express card slot (WI-FI card connector) 14-pin power connector (Power supply assembly connector) Internal speaker cable connector Microprocessor fan connector Microprocessor Card reader connector ThinkCentre E73z Hardware Maintenance Manual...

  • Page 75: Chapter 9. Replacing Frus

    4. 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 cover is facing up. © Copyright Lenovo 2013, 2014...
  • Page 76 6. To install the frame stand, position the frame stand over the computer so that the screw hole in the stand aligns with the corresponding hole in the computer cover. Figure 6. Reinstalling the frame stand ThinkCentre E73z Hardware Maintenance Manual...

  • Page 77: Removing And Installing The Monitor Stand

    7. Reinstall the screw to secure the frame stand to the computer. Recover the screw hole with the sheetmetal. Figure 7. Reinstalling the screw to secure the frame stand to the computer Removing and installing the monitor stand Attention: Do not open your computer or attempt any repair before reading and understanding the “Important safety information”...
  • Page 78 Figure 9. Installing the monitor stand 8. If needed, open the cable manager and route the cables connected to the computer through the cable manager to keep your workspace neat. ThinkCentre E73z Hardware Maintenance Manual...

  • Page 79: Removing The Computer Cover

    Removing the computer cover Attention: Do not open your computer or attempt any repair before reading and understanding the “Important safety information” on page 1 This section provides instructions on how to remove the computer cover. CAUTION: Turn off the computer and wait three to five minutes to let the computer cool before removing the frame stand.

  • Page 80: Removing And Installing The Hard-Disk-Drive Emi Shield

    2. 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 cover is facing up. ThinkCentre E73z Hardware Maintenance Manual...
  • Page 81 3. Remove the computer stand. See “Removing and installing the computer stand” on page 71. 4. Remove the computer cover. See “Removing the computer cover” on page 75. 5. Pivot the hard-disk-drive EMI shield as shown to remove it from the hard-disk-drive bracket, and then lift the EMI shield out of the chassis.

  • Page 82: Replacing The 3.5-Inch Hard Disk Drive Or Hybrid Hard Disk Drive

    3. Remove the computer stand. See “Removing and installing the computer stand” on page 71. 4. Remove the computer cover. See “Removing the computer cover” on page 75. ThinkCentre E73z Hardware Maintenance Manual...
  • Page 83 5. Remove the hard-disk-drive EMI shield. See “Removing and installing the hard-disk-drive EMI shield” on page 76. 6. Remove the screw , and then pivot the hard-disk-drive bracket with the hard disk drive as shown to remove it from the chassis. Figure 14.

  • Page 84: Replacing The 2.5-Inch Solid-State Drive Or Hybrid Hard Disk Drive

    3. Remove the computer stand. See “Removing and installing the computer stand” on page 71. 4. Remove the computer cover. See “Removing the computer cover” on page 75. 5. Remove the hard-disk-drive EMI shield. See “Removing and installing the hard-disk-drive EMI shield” on page 76. ThinkCentre E73z Hardware Maintenance Manual...
  • Page 85 6. Remove the screw , and then pivot the hard-disk-drive bracket with the hard disk drive as shown to remove it from the chassis. Figure 16. Removing the hard-disk-drive bracket with the hard disk drive 7. Disconnect the cable from the hard disk drive. 8.

  • Page 86: Replacing The Optical Drive

    Remove the optical drive from the optical drive bay. Figure 18. Removing the optical drive ThinkCentre E73z Hardware Maintenance Manual...

  • Page 87: Removing And Reinstalling The System Board Shield

    6. To install a new optical drive, slide the new optical drive into the optical drive bay to connect the cable to the optical drive. Figure 19. Installing the optical drive 7. Install the screw to secure the optical drive. Figure 20.

  • Page 88: Replacing The Rear I/O Assembly

    Replacing the rear I/O assembly Attention: Do not open your computer or attempt any repair before reading and understanding the “Important safety information” on page 1 This section provides instructions on how to replace the rear I/O assembly. ThinkCentre E73z Hardware Maintenance Manual...
  • Page 89 To replace the rear I/O assembly, do the following: 1. Remove all media from the drives and turn off all attached devices and the computer. Then, disconnect all power cords from electrical outlets and disconnect all cables that are connected to the computer. 2.

  • Page 90: Removing The Vesa Mount Bracket

    4. Locate the VESA mount bracket. See “Locating major FRUs and CRUs” on page 66. 5. Remove the system board shield. See “Removing and reinstalling the system board shield” on page 83. 6. Remove the rear I/O assembly. See “Replacing the rear I/O assembly” on page 84. ThinkCentre E73z Hardware Maintenance Manual...

  • Page 91: Replacing The Power Supply

    7. Remove the three screws that secure the VESA mount bracket and lift the VESA mount bracket out of the computer. Figure 24. Removing the VESA mount bracket 8. To reinstall the VESA mount bracket, position the VESA mount bracket into the computer so that the screw holes align with those in the computer.

  • Page 92: Replacing The Microprocessor Fan

    Replacing the microprocessor fan Attention: Do not open your computer or attempt any repair before reading and understanding the “Important safety information” on page 1 This section provides instructions on how to replace the microprocessor fan. ThinkCentre E73z Hardware Maintenance Manual...
  • Page 93 To replace the microprocessor fan, do the following: 1. Remove all media from the drives and turn off all attached devices and the computer. Then, disconnect all power cords from electrical outlets and disconnect all cables that are connected to the computer. 2.

  • Page 94: Replacing The Heat Sink Assembly

    4. Locate the heat sink assembly on the system board. See “Locating major FRUs and CRUs” on page 66. 5. Remove the system board shield. See “Removing and reinstalling the system board shield” on page 83. ThinkCentre E73z Hardware Maintenance Manual...

  • Page 95: Replacing The Microprocessor

    6. Follow the sequence on the heat sink assembly to loose the four screws that secure the heat sink assembly to the system board. Remove the screw that secure the heat sink assembly to the computer. Note: Carefully loose the four screws from the system board to avoid any possible damage to the system board.
  • Page 96 6. Remove the heat sink assembly to gain access to the microprocessor. See “Replacing the heat sink assembly” on page 90. 7. Press the small handle to open the retainer to access the microprocessor Figure 28. Opening the retainer to access the microprocessor ThinkCentre E73z Hardware Maintenance Manual...
  • Page 97 8. Lift the microprocessor straight up and out of the socket. Notes: a. Your microprocessor and socket might look different from the one illustrated. b. Note the orientation of the microprocessor in the socket. You can either look for the small triangle on one corner of the microprocessor or note the orientation of the notches on the microprocessor.

  • Page 98: Replacing The Card Reader

    4. Locate the card reader in the computer. See “Locating major FRUs and CRUs” on page 66. 5. Remove the system board shield. See “Removing and reinstalling the system board shield” on page 83. 6. Disconnect the card reader cable from the card reader. ThinkCentre E73z Hardware Maintenance Manual...

  • Page 99: Replacing The Battery

    7. Remove the two screws that secure the card reader, and then lift the card reader out of the computer. Figure 32. Removing the card reader 8. To reinstall the card reader, align the screw holes in the new card reader with those in the computer, and then install the two screws to secure the card reader.

  • Page 100: Replacing The Converter Board

    2. 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 cover is facing up. ThinkCentre E73z Hardware Maintenance Manual...

  • Page 101: Installing Or Replacing A Memory Module

    3. Remove the computer cover. See “Removing the computer cover” on page 75. 4. Remove the optical drive. See “Replacing the optical drive” on page 82. 5. Locate the converter board in the computer. See “Locating major FRUs and CRUs” on page 66. 6.
  • Page 102 Figure 36. Removing a memory module • If you are installing a memory module, open the retaining clips of the memory slot into which you want to install the memory module. ThinkCentre E73z Hardware Maintenance Manual...

  • Page 103: Replacing The Internal Speakers

    8. Insert the notched end of the new memory module into the slot. Press the memory module firmly and pivot the memory module until it snaps into place. Ensure that the memory module is secured in the slot and does not move easily. Figure 37.

  • Page 104: Replacing The Integrated Camera

    5. Remove the system board shield. See “Removing and reinstalling the system board shield” on page 83. 6. Note the routing of the integrated camera cable, and then disconnect the cable from the system board. See “Locating parts on the system board” on page 69. ThinkCentre E73z Hardware Maintenance Manual...

  • Page 105: Replacing The System Board

    7. Remove the screw that secures the integrated camera to the front bezel to remove the integrated camera from the computer. Figure 39. Removing the integrated camera 8. To reinstall the integrated camera, position the new integrated camera and align the screw holes in the new integrated camera with those in the front bezel.
  • Page 106 69. 22. Go to “Completing the parts replacement” on page 108. The failing system board must be returned with a microprocessor socket cover to protect the pins during shipping and handling. ThinkCentre E73z Hardware Maintenance Manual...

  • Page 107: Replacing The Lcd Panel

    To install the microprocessor socket cover, do the following: 1. Release the lever securing the microprocessor retainer and open the retainer to access the microprocessor. 2. Grasp the microprocessor on the sides and lift it straight up and out of the socket. Do not touch the contacts on the microprocessor socket.
  • Page 108 9. Remove the system board shield. See “Removing and reinstalling the system board shield” on page 83. 10. Disconnect the LCD panel cable from the system board. See “Locating parts on the system board” on page 69. Figure 43. Disconnecting the LCD panel cable from the system board ThinkCentre E73z Hardware Maintenance Manual...
  • Page 109 11. Remove all eight screws that secure the computer main bracket to the front bezel. Figure 44. Removing all eight screws that secure the computer main bracket to the front bezel 12. Note the locations of all cable connections that prevent you from lifting the computer main bracket, and disconnect all cables.
  • Page 110 19. Reconnect the LCD panel cable to the system board. See “Locating parts on the system board” on page 69. Figure 47. Reconnecting the LCD panel cable to the system board 20. Reinstall the integrated camera. See “Replacing the integrated camera” on page 100. ThinkCentre E73z Hardware Maintenance Manual...

  • Page 111: Replacing The Wi-Fi Card

    21. Reinstall the rear I/O assembly. See “Replacing the rear I/O assembly” on page 84. 22. Reinstall the system board shield. See “Removing and reinstalling the system board shield” on page 83. 23. Reinstall the foot stands. See “Removing and reinstalling the feet stand” on page 75. 24.

  • Page 112: Completing The Parts Replacement

    2. Make sure that the cables are routed correctly before reinstalling the computer cover. Keep cables clear of the hinges and sides of the computer chassis to avoid interference with reinstalling the computer cover. ThinkCentre E73z Hardware Maintenance Manual...
  • Page 113 Setup Utility program. Refer to Chapter 6 “Using the Setup Utility program” on page 55. Note: In most areas of the world, Lenovo requires the return of the defective Customer Replaceable Unit (CRU). Information about this will come with the CRU or will come a few days after the CRU arrives.
  • Page 114 ThinkCentre E73z Hardware Maintenance Manual...

  • Page 115: Chapter 10. Additional Service Information

    – Start the Setup Utility. – Select Standard CMOS Features. • Sources for obtaining the latest level BIOS available 1. Lenovo support web site: http://www.lenovo.com/support/ 2. Lenovo Customer Support Center 3. Levels 1 and 2 Support To update (flash) the BIOS, see “Flash update procedures” on page 111.

  • Page 116: Updating (Flashing) The Bios From A Disc

    Note: You can download a self-starting bootable disc image (known as an ISO image) with the system program updates to create a system-program-update disc. Go to http://www.lenovo.com/support. To update (flash) the BIOS from a disc on the Windows 8 (64-bit) or Windows 8.1 (64-bit) operating system, do the following: 1.

  • Page 117: Updating (Flashing) The Bios From Your Operating System

    Updating (flashing) the BIOS from your operating system Note: Because Lenovo makes constant improvements to its Web sites, the Web page contents are subject to change without notice, including the contents referenced in the following procedure. To update (flash) the BIOS from your operating system, do the following: 1.

  • Page 118: Power Management

    • For Windows 8.1: Click Choose what the power button does. 4. In the Shutdown setting section, clear Turn on fast startup. Note: If the settings are unavailable, click Change settings that are currently unavailable. 5. Click Save changes. ThinkCentre E73z Hardware Maintenance Manual...

  • Page 119: 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 120: Television Output Notice

    Macrovision Corporation. Reverse engineering or disassembly is prohibited. European conformance CE mark Trademarks The following terms are trademarks of Lenovo in the United States, other countries, or both: Lenovo The Lenovo logo Rescue and Recovery...

  • Page 121: Index

    CRUs (Customer Replaceable Units), returning defective locating components looking up part numbers 1, 65, 69 deleting a password diagnostic program diagnostics, troubleshooting memory module installing, replacing microprocessor fan, replacing monitor stand environment, operating installing exiting, Setup Utility removing © Copyright Lenovo 2013, 2014...
  • Page 122 Setup Utility 3.5-inch hybrid hard disk drive battery card reader converter board VESA mount bracket, removing heat sink assembly viewing and changing settings integrated camera internal speakers LCD panel microprocessor fan power supply Wi-Fi card, replacing ThinkCentre E73z Hardware Maintenance Manual...

Table of Contents