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Lenovo C345 Hardware Maintenance Manual
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Lenovo C345 Hardware Maintenance Manual

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Lenovo C345/C445 All-In-One PC
Hardware Maintenance Manual
Machine Types: 10103/4751 [C345], 10105/6596 [C445]

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Summary of Contents for Lenovo C345

  • Page 1 Lenovo C345/C445 All-In-One PC Hardware Maintenance Manual Machine Types: 10103/4751 [C345], 10105/6596 [C445]...
  • Page 3 Lenovo C345/C445 All-In-One PC Hardware Maintenance Manual Machine Types: 10103/4751 [C345], 10105/6596 [C445]...
  • Page 4 Third Edition (December 2012)28th © Copyright Lenovo 2012. 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. GS-35F-05925...

  • Page 5: Table Of Contents

    Selecting a startup device ..Replacing the power switch board ..Exiting the Lenovo BIOS Setup Utility program . . Replacing the motherboard..
  • Page 6 Lenovo C345/C445 All-In-One PCHardware Maintenance Manual...

  • Page 7: Chapter 1. About This Manual

    This manual contains service and reference information for Lenovo C345 and C445 All-In-One computers listed on the cover. It is intended only for trained servicers who are familiar with Lenovo computer products. Before servicing a Lenovo product, be sure to read the Safety Information.
  • Page 8 Lenovo C345/C445 All-In-One PCHardware Maintenance Manual...

  • Page 9: Chapter 2. Safety Information

    Electrical current from power, telephone, and communication cables can be hazardous. To avoid personal injury or equipment damage, disconnect any attached power cords, telecommunication cables, network cables, and modem cables before you open the computer covers, unless instructed otherwise in the installation and configuration procedures. © Copyright Lenovo 2012...
  • Page 10 – 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. Lenovo C345/C445 All-In-One PCHardware Maintenance Manual...

  • Page 11: Safety Inspection Guide

    – Switch off power. – Send another person to get medical aid. Safety inspection guide The intent of this inspection guide is to assist you in identifying potential hazards posed by these products. Each computer, as it was designed and built, had required safety items installed to protect users and service personnel from injury.

  • Page 12: Grounding Requirements

    • Connect and disconnect cables as described in the following table when installing, moving, or opening covers on this product or attached devices. Lenovo C345/C445 All-In-One PCHardware Maintenance Manual...
  • Page 13 To Connect To Disconnect 1. Turn everything OFF. 1. Turn everything OFF. 2. First, attach all cables to devices. 2. First, remove power cords from outlets. 3. Attach signal cables to connectors. 3. Remove signal cables from connectors. 4. Attach power cords to outlet. 4.
  • Page 14 To remove all electrical current from the device, ensure that all power cords are disconnected from the power source. CAUTION: Do not place any object weighing more than 82 kg (180 lbs.) on top of rack-mounted devices. Lenovo C345/C445 All-In-One PCHardware Maintenance Manual...

  • Page 15: Chapter 3. General Information

    This chapter provides general information that applies to all computer models covered by this manual. Specifications This section lists the physical specifications for your computer. This section lists the physical specifications for your computer. Type Lenovo C345/C445 This section lists the physical specifications. Environment Air temperature: Operating: 10°...
  • Page 16 Lenovo C345/C445 All-In-One PCHardware Maintenance Manual...

  • Page 17: Chapter 4. General Checkout

    • If the computer displays a POST error, go to “POST error codes”. • If the computer hangs and no error is displayed, continue at step 7. 7. If the test stops and you cannot continue, replace the last device tested. © Copyright Lenovo 2012...
  • Page 18 Lenovo C345/C445 All-In-One PCHardware Maintenance Manual...

  • Page 19: Chapter 5. Using The Setup Utility

    1. If your computer is already on when you start this procedure, shut down the operating system and turn off the computer. 2. Press and hold the F1 key then turn on the computer. When the Lenovo BIOS Setup Utility program is displayed, release the F1 key.
  • Page 20 5. Select Save changes and Exit from the menu. Power-On Password When a Power-On Password is set, you cannot start the Lenovo BIOS Setup Utility program until a valid password is typed from the keyboard. Setting, changing, or deleting a Power-On Password Note: A password can be any combination of letters and numbers up to 16 characters (a-z and 0-9).

  • Page 21: Enabling Or Disabling A Device

    To set a Power-On Password, do the following: 1. Start the Lenovo BIOS Setup Utility program (See ”Starting the Lenovo BIOS Setup Utility program” on page 13.) 2. From the Security menu, select Set Power-On Password and press the Enter key.

  • Page 22: Selecting A Startup Device

    Selecting or changing the startup device sequence To view or permanently change the configured startup device sequence, do the following: 1. Start the Lenovo BIOS Setup Utility program (see “Starting the Lenovo BIOS Setup Utility program” on page 13). 2. From the Lenovo BIOS Setup Utility program main menu, select the Startup option.

  • Page 23: Exiting The Lenovo Bios Setup Utility Program

    Exiting the Lenovo BIOS Setup Utility program After you finish viewing or changing settings, press the Esc key to return to the Lenovo BIOS Setup Utility program main menu. You might have to press the Esc key several times. Do one of the following: •...
  • Page 24 Lenovo C345/C445 All-In-One PCHardware Maintenance Manual...

  • Page 25: Chapter 6. Symptom-To-Fru Index

    Check that the following are properly installed: Reseat connectors • Power Cord • On/Off Switch connector • System Board Power Supply connectors • Microprocessor connections Check the power cord. Power Cord Check the power-on switch. Power-on Switch © Copyright Lenovo 2012...

  • Page 26: Post Error Codes

    3. Power-on the computer to re-test the system. 4. Repeat steps 1 through 3 until you find the failing device or component. If all devices and components have been removed and the problem continues, replace the system board. Lenovo C345/C445 All-In-One PCHardware Maintenance Manual...

  • Page 27: Chapter 7. Locating Connectors, Controls And Components

    7. Left direction button 3. Hard disk drive indicator 8. Right direction button 4. Wi-Fi status indicator 9. Monitor On/Off button 5. Monitor On/Off indicator 10. Built-in IR receiver (Only functional on models equipped with a IR receiver module) © Copyright Lenovo 2012...
  • Page 28 5. Memory card reader 2. Headphone connector 6. Power button 3. Microphone connector 7. Optical drive eject button 4. USB connector 8. Optical drive Attention: Do not insert 3-inch discs into the optical drive. Lenovo C345/C445 All-In-One PCHardware Maintenance Manual...
  • Page 29 Rear view The following illustration shows the location of connectors and components on the rear of the computer. 1. TV tuner connector (selected models only, 2 connectors 6. USB connector for Japan) 2. TV tuner connector (selected models only, 2 connectors 7.
  • Page 30 17. Hard disk drive and bay 7. Speakers 18. Converter board 19. Front function board 8. Rear I/O module 9. Chassis 20. Optical drive 10. LED panel 21. Optical drive bracket 11. Front bezel Lenovo C345/C445 All-In-One PCHardware Maintenance Manual...
  • Page 31 Identifying parts on the motherboard The motherboard (sometimes called the planar or system board) is the main circuit board in your computer. It provides basic computing functions and supports a variety of devices that are factory-installed or that you can install later. The following illustration shows the location of connectors and components on the front of the motherboard.
  • Page 32 Lenovo C345/C445 All-In-One PCHardware Maintenance Manual...

  • Page 33: Chapter 8. Replacing Hardware

    Attention: Do not remove the computer cover or attempt any repair before reading the “Important safety information” in the Safety and Warranty Guide that was included with your computer. To obtain copies of the Safety and Warranty Guide, go to the Support Web site at: http://consumersupport.lenovo.com. Note: Use only parts provided by Lenovo.

  • Page 34: Replacing The Keyboard And Mouse

    Attention: Turn off the computer and wait 3 to 5 minutes to let it cool down before removing the cover. Step 1. Remove any media (disks, CDs, or memory cards) from the drives, shut down the operating system, and turn off the computer and all attached devices. Lenovo C345/C445 All-In-One PCHardware Maintenance Manual...
  • Page 35 Step 2. Disconnect the adapter cable from the computer , then unplug the power cord from electrical outlet. Step 3. Connect the new adapter as shown. Chapter 8 Replacing hardware...

  • Page 36: Removing The Stand Base

    Attention: Turn off the computer and wait 3 to 5 minutes to let it cool down before removing the cover. Note: It may be helpful to place the computer face-down on a soft flat surface for this procedure. Lenovo recommends that you use a blanket, towel, or other soft cloth to protect the touch screen from scratches or other damage.

  • Page 37: Replacing A Memory Module

    Note: It may be helpful to place the computer face-down on a soft flat surface for this procedure. Lenovo recommends that you use a blanket, towel, or other soft cloth to protect the touch screen from scratches or other damage.
  • Page 38 Note: It may be helpful to place the computer face-down on a soft flat surface for this procedure. Lenovo recommends that you use a blanket, towel, or other soft cloth to protect the touch screen from scratches or other damage.

  • Page 39: Replacing The Hard Disk Drive

    Attention: Turn off the computer and wait 3 to 5 minutes to let it cool down before removing the cover. Note: It may be helpful to place the computer face-down on a soft flat surface for this procedure. Lenovo recommends that you use a blanket, towel, or other soft cloth to protect the touch screen from scratches or other damage.

  • Page 40: Replacing The Optical Drive

    Attention: Turn off the computer and wait 3 to 5 minutes to let it cool down before removing the cover. Note: It may be helpful to place the computer face-down on a soft flat surface for this procedure. Lenovo recommends that you use a blanket, towel, or other soft cloth to protect the touch screen from scratches or other damage.
  • Page 41 Step 6. Push the optical drive pin downward to push out the optical drive as shown. Step 7. Push a small iron stick (paper clip) into the small hole on the optical drive cover so that the disk springs out as shown. Step 8.

  • Page 42: Removing The Stand Holder

    Note: Turn off the computer and wait 3 to 5 minutes to let it cool down before removing the cover. Note: It may be helpful to place the computer face-down on a soft flat surface for this procedure. Lenovo recommends that you use a blanket, towel, or other soft cloth to protect the computer screen from scratches or other damage.

  • Page 43: Removing The Middle Cover

    Note: Turn off the computer and wait 3 to 5 minutes to let it cool down before removing the cover. Note: It may be helpful to place the computer face-down on a soft flat surface for this procedure. Lenovo recommends that you use a blanket, towel, or other soft cloth to protect the computer screen from scratches or other damage.

  • Page 44: Replacing The Converter Board

    Note: Turn off the computer and wait 3 to 5 minutes to let it cool down before removing the cover. Note: It may be helpful to place the computer face-down on a soft flat surface for this procedure. Lenovo recommends that you use a blanket, towel, or other soft cloth to protect the computer screen from scratches or other damage.

  • Page 45: Replacing The Camera

    Note: Turn off the computer and wait 3 to 5 minutes to let it cool down before removing the cover. Note: It may be helpful to place the computer face-down on a soft flat surface for this procedure. Lenovo recommends that you use a blanket, towel, or other soft cloth to protect the computer screen from scratches or other damage.

  • Page 46: Removing The Emi Cover

    Note: Turn off the computer and wait 3 to 5 minutes to let it cool down before removing the cover. Note: It may be helpful to place the computer face-down on a soft flat surface for this procedure. Lenovo recommends that you use a blanket, towel, or other soft cloth to protect the computer screen from scratches or other damage.

  • Page 47: Replacing The Rear I/O Module

    Note: Turn off the computer and wait 3 to 5 minutes to let it cool down before removing the cover. Note: It may be helpful to place the computer face-down on a soft flat surface for this procedure. Lenovo recommends that you use a blanket, towel, or other soft cloth to protect the computer screen from scratches or other damage.
  • Page 48 Step 10. Remove the two screws that secure the rear I/O module to the motherboard and lift it up gently. Step 11. Disconnect the power cable from the motherboard and the TV antenna cable(s) from the TV tuner card. Lenovo C345/C445 All-In-One PCHardware Maintenance Manual...

  • Page 49: Replacing The Speaker System

    Note: Turn off the computer and wait 3 to 5 minutes to let it cool down before removing the cover. Note: It may be helpful to place the computer face-down on a soft flat surface for this procedure. Lenovo recommends that you use a blanket, towel, or other soft cloth to protect the computer screen from scratches or other damage.

  • Page 50: Replacing The System Fan

    Note: Turn off the computer and wait 3 to 5 minutes to let it cool down before removing the cover. Note: It may be helpful to place the computer face-down on a soft flat surface for this procedure. Lenovo recommends that you use a blanket, towel, or other soft cloth to protect the computer screen from scratches or other damage.

  • Page 51: Replacing The Heat-Sink

    Note: Turn off the computer and wait 3 to 5 minutes to let it cool down before removing the cover. Note: It may be helpful to place the computer face-down on a soft flat surface for this procedure. Lenovo recommends that you use a blanket, towel, or other soft cloth to protect the computer screen from scratches or other damage.

  • Page 52: Replacing The Tv Tuner Card

    Note: Turn off the computer and wait 3 to 5 minutes to let it cool down before removing the cover. Note: It may be helpful to place the computer face-down on a soft flat surface for this procedure. Lenovo recommends that you use a blanket, towel, or other soft cloth to protect the computer screen from scratches or other damage.

  • Page 53: Replacing The Wlan Card

    Note: Turn off the computer and wait 3 to 5 minutes to let it cool down before removing the cover. Note: It may be helpful to place the computer face-down on a soft flat surface for this procedure. Lenovo recommends that you use a blanket, towel, or other soft cloth to protect the computer screen from scratches or other damage.

  • Page 54: Replacing The Front Control Board

    Note: Turn off the computer and wait 3 to 5 minutes to let it cool down before removing the cover. Note: It may be helpful to place the computer face-down on a soft flat surface for this procedure. Lenovo recommends that you use a blanket, towel, or other soft cloth to protect the computer screen from scratches or other damage.

  • Page 55: Replacing The Power Switch Board

    Note: Turn off the computer and wait 3 to 5 minutes to let it cool down before removing the cover. Note: It may be helpful to place the computer face-down on a soft flat surface for this procedure. Lenovo recommends that you use a blanket, towel, or other soft cloth to protect the computer screen from scratches or other damage.

  • Page 56: Replacing The Motherboard

    Note: Turn off the computer and wait 3 to 5 minutes to let it cool down before removing the cover. Note: It may be helpful to place the computer face-down on a soft flat surface for this procedure. Lenovo recommends that you use a blanket, towel, or other soft cloth to protect the computer screen from scratches or other damage.
  • Page 57 Step 9. Remove the middle cover. Refer to “Removing the middle cover”. Step 10. Remove the EMI cover. Refer to “Removing the EMI cover”. Step 11. Remove the rear I/O module. Refer to “Replacing the rear I/O module”. Step 12. Remove the heat-sink. Refer to “Replacing the heat-sink”. Step 13.

  • Page 58: Replacing The Led Panel

    Note: Turn off the computer and wait 3 to 5 minutes to let it cool down before removing the cover. Note: It may be helpful to place the computer face-down on a soft flat surface for this procedure. Lenovo recommends that you use a blanket, towel, or other soft cloth to protect the computer screen from scratches or other damage.
  • Page 59 Step 16. Remove the 9 screws that secure the chassis to the front bezel. Step 17. Remove the four screws that secure the LED panel to the chassis, and then disconnect the power cable from the LED panel. Step 18. Lift up the chassis to separate the LED panel from the chassis. Step 19.
  • Page 60 Lenovo C345/C445 All-In-One PCHardware Maintenance Manual...

  • Page 61: Chapter 9. Fru Lists

    • 1– identifies parts that are fairly simple to replace, requiring few or no tools. • 2– identifies parts that are slightly more difficult to replace. • N-identifies parts that are not to be replaced by the customer. Service Item # Description Part CRU ID Number Computer stand ？？ ？？ © Copyright Lenovo 2012...
  • Page 62 C445 REAR IO BRACKET W/TV PAL W/O HDMI C345 REAR IO BRACKET W/O TV W/HDMI 90201669 90201670 C345 REAR IO BRACKET W/O TV W/O HDMI C345 REAR IO BRACKET W/TV NTSC W/O HDMI 90201671 C345 REAR IO BRACKET W/TV NTSC W/HDMI...
  • Page 63 Avermedia H339BA ATSC Mini TV Card 11200291 System fan C345/C445 AVC Fan 90200727 C345/C445 Delta Fan 90200728 Heat-sink C345/C445 Taisol Thermal module 90200729 90200730 C345/C445 CoolerMaster Thermal module Camera Bison M720P VC OV9712 CAM 20200085 Bison M720P VC OV9712 MIC rubber CAM...
  • Page 64 Optical drive 25201487 PLDS DS-8A8SH SN-208AB 25201108 25201635 HLDS GT50N Optical drive bracket ？？ Lenovo C345/C445 All-In-One PCHardware Maintenance Manual...

  • Page 65: Chapter 10. General Information

    • Wake Up on Alarm: You can specify a date and time at which the computer will be turned on automatically. This can be either a single event , a daily event or a weekly event. • Wake Up on LAN: This feature allows LAN adapter card to wake the System. © Copyright Lenovo 2012...

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