Lenovo C240/245/255 All-In-One PC Hardware Maintenance Manual ideaideaideaCentreidea Machine Types: 10113/6268 [C240];10114/6269 [C245];10137/F0A1 [C255]
Lenovo C240/245/255 All-In-One PC Hardware Maintenance Manual Machine Types: 10113/6268 [C240];10114/6269 [C245];10137/F0A1 [C255]
Fourth Edition (July 2013)25th © Copyright Lenovo 2012, 2013. 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.
Contents 1 Chapter 7. Locating connectors, controls and components . . . . . . 21 Chapter 2. Safety information . . . . . . 3 Chapter 8. Replacing hardware . . . . 27 General safety . . . . . . . . . . . . Electrical safety . . . . . . . . . . . Safety inspection guide . . . . . . . . Handling electrostatic discharge-sensitive devices . . . . . . . . . . . . . . Grounding requirements . . . . . . . . Safety notices . . . . . . . . . . . . General information . . . . . . .
iv Lenovo C240/245/255 All-In-One PC Hardware Maintenance Manual
Chapter 1. About this manual This manual contains service and reference information for Lenovo C240/C245/C255 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. The description of the TV-tuner card in this manual applies only to computers with a TV-tuner card installed. It does not apply to computers without a TV-tuner card.
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Chapter 2. Safety information This chapter contains the safety information that you need to be familiar with before servicing a computer. General safety Follow these rules to ensure general safety: • Keep the areas around the computer clear and clean during and after maintenance. • When lifting any heavy object: 1. Ensure you can stand safely without slipping. 2. Distribute the weight of the object equally across both feet. 3. Lift slowly. Never move suddenly or twist when you attempt to lift. 4.
Observe the following rules when working on electrical equipment. Important: Use only approved tools and test equipment. Some hand tools have handles covered with a soft material that does not insulate you when working with live electrical currents. Many customers have rubber floor mats near their equipment that contain small conductive fibers to decrease electrostatic discharge. • Find the room emergency power-off (EPO) switch, disconnecting switch, or electrical outlet.
– 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. This guide addresses only those items.
• Keep the parts in protective packages until they are inserted into the product. • Avoid contact with other people while handling the part. • Wear a grounded wrist strap against your skin to eliminate static on your body. • Prevent the part from touching your clothing. Most clothing is insulative and retains a charge even when you are wearing a wrist strap. • Use the black side of a grounded work mat to provide a static-free work surface. The mat is especially useful when handling ESD-sensitive devices.
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. Remove all cables from devices. 5. Turn device ON. CAUTION: When replacing the lithium battery, use only Part Number 45C1566 or an equivalent type battery recommended by the manufacturer.
≥18 kg (37 lbs) ≥32 kg (70.5 lbs) ≥55 kg (121.2 lbs) CAUTION: Use safe practices when lifting. CAUTION: The power control button on the device and the power switch on the power supply do not turn off the electrical current supplied to the device. 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. 2 1 CAUTION: Do not place any object weighing more than 82 kg (180 lbs.
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 C240/C245/C255 This section lists the physical specifications.
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Chapter 4. General Checkout Attention: The drives in the computer you are servicing might have been rearranged or the drive startup sequence may have been changed. Be extremely careful during write operations such as copying, saving, or formatting. Data or programs can be overwritten if you select an incorrect drive. General error messages appear if a problem or conflict is found by an application, the operating system, or both.
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Chapter 5. Using the Setup Utility The Setup Utility program is used to view and change the configuration settings of your computer, regardless of which operating system you are using. However, the operating system settings might override any similar settings in the Setup Utility program. Starting the Lenovo BIOS Setup Utility program To start the Lenovo BIOS Setup Utility program, do the following: 1.
Administrator Password Setting an Administrator Password deters unauthorized persons from changing configuration settings. You might want to set an Administrator Password if you are responsible for maintaining the settings of several computers. After you set an Administrator Password, a password prompt is displayed every time you access the Lenovo BIOS Setup Utility program. If both the Administrator and Power-On Password are set, you can type either password.
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). 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.
SATA Mode Select Disabled/IDE/AHCI mode. Device driver support is required for AHCI or RAID. Depending on how the hard disk drive image was installed, changing this setting may prevent the system from booting. Onboard Audio Controller Select whether to enable or disable the Onboard Audio Controller. When this feature is set to Disabled all devices connected to the audio connectors (e.g. headphones or a microphone) are disabled and cannot be used.
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. 3. Press the Enter key, and select the devices for the Primary Boot Sequence. Read the information displayed on the right side of the screen. 4.
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Chapter 6. Symptom-to-FRU Index The Symptom-to-FRU index lists error symptoms and possible causes. The most likely cause is listed first. Always begin with Chapter 4, “General Checkout,” on page 11. This index can also be used to help you decide which FRUs to have available when servicing a computer. If you are unable to correct the problem using this index, go to “Undetermined problems” on page 20. Notes: • If you have both an error message and an incorrect audio response, diagnose the error message first.
POST error codes Each time you turn the computer on, it performs a series of tests to check that the system is operating correctly and that certain options are set. This series of tests is called the Power-On Self-Test, or POST. POST does the following: • Checks some basic motherboard operations • Checks that the memory is working correctly • Starts video operations • Verifies that the boot drive is working POST Error Message Description/Action Keyboard error Cannot initialize the keyboard.
Chapter 7. Locating connectors, controls and components This section provides illustrations to help locate the various connectors, controls and components of the computer. Front view The following illustration shows the location of controls and components on the front of the computer. Attention: Be careful not to block any air vents on the computer. Blocked air vents can cause overheating. 1. Built-in microphone 6. Volume down 2. Built-in camera 7. Volume up 3. System Power On/Off indicator 8.
Left and right view The following illustration shows the location of connectors, controls and components on the left and right side of the computer. 1 2 3 4 5 6 1. Optical drive 4. Microphone connector 2. Memory card reader 5. Headphone connector 3. USB 3.0 connectors (selected models only) 6.
Rear view The following illustration shows the location of connectors and components on the rear of the computer. 1 2 3 4 1. Power connector 4. Ethernet connector 2. HDMI-out connector (selected models only) 5. Air vents 3. USB 2.0 connectors (selected models only) Chapter 7.
Hardware components The following illustration shows the components that make up your computer. 9 1 10 2 11 3 12 4 13 5 6 7 14 8 15 1. Front bezel 9. Camera 2. Motherboard 10. Converter board bracket 3. EMI shielding 11. Converter board 4. Optical drive 12. Heat-sink module 5. Front indicator board 13. System fan 6. Power switch board 14. Hard disk drive 7. Speaker system 15. Computer stand 8.
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 can be installed later. The following illustration shows the location of connectors and components on the front of the motherboard. 1 2 3 4 5 6 7 9 8 1. LVDS cable connector 6. TV-Tuner card port 2. CPU 7. Power switch cable connector 3.
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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://support.lenovo.com. Note: Use only parts provided by Lenovo. General information Pre-disassembly instructions Before starting the disassembly procedure, make sure that you do the following: 1.
Replacing the keyboard and mouse To replace the keyboard and mouse: Step 1. Remove any media (disks, CDs, DVDs or memory cards) from the drives, shut down the operating system, and turn off the computer and all attached devices. Step 2. Unplug all power cords from electrical outlets. Step 3. Disconnect all cables attached to the computer. This includes power cords, input/output (I/O) cables, and any other cables that are connected to the computer.
Step 4. Push a small iron stick (paper clip) into the small hole on the optical drive cover so that the disk springs out as shown. 1 Step 5. Remove the screw that secures the optical drive to the chassis. 2 Step 6. Slide out the optical drive as shown. 3 Step 7. Use a small flat head screwdriver to press and push out the pins that secure the cover to the disk. 4 5 Step 8. Separate the cover from the defective optical drive. Step 9. Install the new optical drive as follows: Chapter 8.
a. Align the new optical drive with the cover, and then push the cover back into position. b. Slide the new optical drive into the drive bay, then push it into position. c. Secure the optical drive to the chassis using the screw. Replacing the power adapter To replace the power adapter: Step 1. Remove any media (disks, CDs, DVDs, or memory cards) from the drives, shut down the operating system, and turn off the computer and all attached devices. Step 2. Locate the connector for the power cord.
Removing the rear cover Note: Turn off the computer and wait 3 to 5 minutes to let it cool down before removing the rear 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. To remove the rear cover: Step 1.
Step 8. To reattach the rear cover: a. Line up the rear cover with the front bezel and reconnect the LVDS cable. b. Line up the holes on the rear cover with mounting holes on the front bezel, and place the rear cover into position. c. Secure the rear cover to the front bezel with the 5 screws. Replacing a memory module Attention: Turn off the computer and wait 3 to 5 minutes to let it cool down before removing the rear cover. To replace a memory module: Step 1.
Step 3. Disconnect all cables attached to the computer. This includes power cords, input/output (I/O) cables, and any other cables that are connected to the computer. Refer to “Left and right view” and “Rear view” for help with locating the various connectors. Step 4. Remove the rear cover. Refer to "Removing the rear cover". Step 5. Remove the 4 screws that secure the hard disk drive to the rear cover. Step 6. Disconnect the data and power cable from the hard disk drive. 1 Step 7.
Step 5. Remove the 4 screws that secure the heat-sink module to the motherboard. Step 6. Lift up the heat-sink to remove it. Attention: Place the heat-sink upside down on a flat surface to prevent thermal grease contaminating other components. Step 7. Step 8. To install the new heat-sink: a. Use an alcohol pad to wipe the thermal grease off the CPU. b. Line up the new heat-sink module with the mounting holes on the motherboard. c.
Step 5. Disconnect the power cable from the connector on the motherboard. 1 Step 6. Remove the 2 screws that secure the system fan to the rear cover. Step 7. Lift up the system fan to remove it. 2 1 2 Step 8. Step 9. To install the new system fan: a. Line up the new system fan with the mounting holes on the rear cover and place it into position. b. Secure the new system fan to the rear cover with the 2 screws. c. Connect the new power cable to the connector on the motherboard.
Step 5. Disconnect the antenna and data cables from the Wi-Fi card. 1 Step 6. Remove the screw that secures the Wi-Fi card to the motherboard. 2 Step 7. Pull the Wi-Fi card upward to remove it from the socket. 3 2 1 3 Step 8. Step 9. To install the new Wi-Fi card: a. Insert the new Wi-Fi card into the card port and secure it with the screw. b. Connect the antenna cables to the new Wi-Fi card. Reattach the rear cover and secure it with the screws.
Step 5. Disconnect the speaker cable from the connector on motherboard. 1 Step 6. Detach the speaker system from the rubber screws. 2 3 1 22 3 Step 7. Step 8. To install the new speaker system: a. Secure the new speaker system to the chassis with the rubber screws. b. Connect the new speaker cable to the connector on the motherboard. Reattach the rear cover and secure it with the screws.
Step 5. Disconnect the data cable from the front indicator board. 1 Step 6. Remove the 2 screws that secure the front indicator board to the rear cover. 2 Step 7. Lift up the front indicator board to remove it. 2 1 Step 8. Step 9. To install the new front indicator board: a. Line up the front indicator board with the mounting holes on the rear cover and secure it with the 2 screws. b. Connect the data cable to the connector on the motherboard.
Step 5. Disconnect the power switch board cable from the connector on the motherboard. 1 Step 6. Remove the screw that secures the power switch board to the rear cover and lift up the power switch board to remove it. 2 1 2 Step 7. Step 8. To install the power switch board: a. Line up the holes on the new power switch board with the mounting holes on the rear cover and secure the new power switch board with the screws. b. Connect the data cable to the connector on the new motherboard.
Step 8. Remove all the cables connected to the motherboard. 1 2 3 4 5 6 6 1 2 3 4 5 Step 9. Remove the 7 screws that secure the motherboard to the rear cover and lift it up to remove it. 1 1 Step 10. To install the new motherboard: a. Insert the notched end of the Wi-Fi card into the card port on the new motherboard and secure it with the screw. b. Connect the antenna cable(s) to the Wi-Fi card. c.
Replacing the computer stand Note: Turn off the computer and wait 3 to 5 minutes to let it cool down before removing the rear cover. To replace the computer stand: Step 1. Remove any media (disks, CDs, DVDs, or memory cards) from the drives, shut down the operating system, and turn off the computer and all attached devices. Step 2. Unplug all power cords from electrical outlets. Step 3. Disconnect all cables attached to the computer.
Step 3. Disconnect all cables attached to the computer. This includes power cords, input/output (I/O) cables, and any other cables that are connected to the computer. Refer to “Left and right view” and “Rear view” for help with locating the various connectors. Step 4. Remove the rear cover. Refer to “Removing the rear cover”. Step 5. Remove the 2 screws that secure the camera to the front bezel. 1 Step 6. Lift up the camera 2 and disconnect the data cable from the camera. 3 1 2 1 3 Step 7.
Step 5. Disconnect the 2 cables from the converter board. 1 Step 6. Remove the 2 screws that secure the converter board to the bracket. 2 Step 7. Lift up the converter board to remove it. 3 2 2 3 1 1 Step 8. Step 9. To install the new converter board: a. Line up the holes in the new converter board with the mounting holes on the bracket and secure the new converter board with the 2 screws. b. Connect the 2 cables to the new converter board. c.
Step 6. Remove the 2 screws that secure the converter bracket to the front bezel. 1 Lift up the bracket to remove it. 2 1 1 2 Step 7. Remove the tape that secures the LVDS cable to the connector. Step 8. Press the pins to unlock the LVDS cable from the connector on the LED panel 1 , then pull it out as shown. 2 Step 9. Press the pin to unlock the converter cable from the connector on the LED panel 3 , then pull the converter cable out as shown. 4 4 3 1 2 1 Step 10.
Step 11. The LED panel is pined to the front bezel. Pull the pins outward to release it 1 , then slide out the LED panel out as shown. 2 3 3 2 1 Step 12. To install the new the LED panel: a. Line up the new LED panel with the front bezel, then slide it into position. b. Secure the LED panel to the front bezel with the 2 screws. c. Attach all the cables to the new LED panel. d. Reattach the converter bracket to the front bezel. e. Reattach the converter board to the bracket. f.
Panel Brand PJP 6 Setting LG(18.5'' )-LM185WH2-TLK1 CMI(18.5'')-M185BGE-L23 AUO(18.5'')-M185XTN01.3 BOE(18.5'')-B3 HT185WX1-300 Step 13. Reattach the rear cover and secure it with the screws.
Chapter 9. FRU lists-C240–245 This chapter lists the information on the field replaceable units (FRUs) for Lenovo C240–245 All-In-One desktop computers. Attention: Be sure to read and understand all the safety information before replacing any FRUs. Notes: FRUs that have a 1 or 2 in the CRU column are Customer Replaceable Units (CRUs). • 1– identifies parts that are fairly simple to replace, requiring few or no tools. • 2– identifies parts that are slightly more difficult to replace.
3 C240 NOK CPU_847 MB 90001861 N C240 NOK CPU_807 MB 90001862 N C240 W8P CPU_847 MB 90001863 N C240 W8P CPU_807 MB 90001864 N C240 W8S CPU_847 MB 90001865 N C240 W8S CPU_807 MB 90001866 N C245 NOK UMA CPU_E2-1800 1.7G MB 90001852 N C245 NOK UMA CPU_E1-1200 1.4G MB 90001853 N C245 NOK UMA CPU_E-450 1.65G MB 90001854 N C245 W8P UMA CPU_E2-1800 1.7G MB 90001855 N C245 W8P UMA CPU_E1-1200 1.4G MB 90001856 N C245 W8P UMA CPU_E-450 1.
9 10 C240 REAR COVER W/ODD (BLACK) 90202161 N C240 REAR COVER W/ODD (WHITE) 90202162 N C240 REAR COVER W/O ODD (BLACK) 90202212 N C240 REAR COVER W/O ODD (WHITE) 90202213 N Bison M720P VC OV9712 CAM 20200085 N CCY M720P VC OV9712 CAM 20200086 N 90202142 N C240 CONVERTER BOARD For CMI 90001846 N C240 CONVERTER BOARD For AUO 90001847 N C240 CONVERTER BOARD For LG 90001848 N C240 CONVERTER BOARD For BOE 90001849 N C240 UMA COOLERMASTER THERMAL 90202151 N C240 UMA AVC THERMA
Panel 50 C240 STAND (BLACK) 90202158 N C240 STAND (WHITE) 90202159 N CMI 18.5"WLED M185BGE-L22 90400100 N AUO M185XTN01.2 90400101 N AUO M185XTN01.
Chapter 10. FRU lists-C255 This chapter lists the information on the field replaceable units (FRUs) for Lenovo C255 All-In-One desktop computer. Attention: Be sure to read and understand all the safety information before replacing any FRUs. Notes: FRUs that have a 1 or 2 in the CRU column are Customer Replaceable Units (CRUs). • 1– identifies parts that are fairly simple to replace, requiring few or no tools. • 2– identifies parts that are slightly more difficult to replace.
7 Speaker C240 SPEAKER W/RUBBER*2 90202138 N 11 Converter board C240 CONVERTER BOARD For CMI 90001846 N C240 CONVERTER BOARD For AUO 90001847 N C240 CONVERTER BOARD For BOE 90001849 N Function Board C240 FUNCTION POWER BOARD W/FFC 90001850 N 5 LED Board C240 LED BAORD W/FFC 90001851 N Cables Cables C240 CABLE_CAMERA_CONVERTER_LVDs 90202145 N C240 CONVERTER CABLE 90202146 N C240 HDD CABLE 90202148 N C255ODD CABLE 90203732 N Antenna C240 WLAN ANTENNA 90202160 N 10 C
RAM 2GB 4GB 14 250G 500G 1TB 4 Panel ODD 250nits 200nits Adapter Wi-Fi card 9 Adapter Wi-Fi card 720P 0.
Keyboard 54 Keyboard Sunrex EKB-10YA(US) B-Silk USB KB-LVT8 25209111 1 Primax KB4721(US) B-Silk USB KB-LVT8 25209112 1 Chicony Black Silk KB 25209113 1 Sunrex EKB-10YA(TW) B-Silk USB KB-LVT8 25209114 1 Sunrex EKB-10YA(TH) B-Silk USB KB-LVT8 25209115 1 Sunrex EKB-10YA(CZ-SL) B-S USB KB-LVT8 25209116 1 Sunrex EKB-10YA(IN) B-Silk USB KB-LVT8 25209117 1 Sunrex EKB-10YA(RU) B-Silk USB KB-LVT8 25209118 1 Sunrex EKB-10YA(UK) B-Silk USB KB-LVT8 25209119 1 Sunrex EKB-10YA(Nordic) B-S US
Mouse Power Cord Mouse Power Cord Sunrex EKB-10YA(SW) W-Silk USB KB-LVT8 25209156 1 Sunrex EKB-10YA(GE) W-Silk USB KB-LVT8 25209157 1 Sunrex EKB-10YA(TR) W-Silk USB KB-LVT8 25209158 1 Sunrex EKB-10YA(SP) W-Silk USB KB-LVT8 25209159 1 Sunrex EKB-10YA(SL) W-Silk USB KB-LVT8 25209160 1 Sunrex EKB-10YA(IT) W-Silk USB KB-LVT8 25209161 1 Sunrex EKB-10YA(HB) W-Silk USB KB-LVT8 25209162 1 Sunrex EKB-10YA(FR) W-Silk USB KB-LVT8 25209163 1 Sunrex EKB-10YA(GK) W-Silk USB KB-LVT8 25209164
56 Volex 1m C5 Europe Power Cable 31049497 1 Luxshare1.0m C5 Europe Power Cable 31049518 1 longwell Black Single-end 1.0m India Power Cable 31035395 1 Luxshare1.0m C5 India Power Cable 31503353 1 Longwell Black Single-end 1.0m Italy C5 Power Cable ® 31039104 1 Volex 1m C5 Italy Power Cable 31049504 1 Luxshare1.0m C5 Italy Power Cable 31503359 1 Longwell Black Single-end 1.0m Brazil Power Cable ® 31035828 1 Volex 1m C5 Brazil Power Cable 31049505 1 Luxshare1.
Chapter 11. Additional Service Information This chapter provides additional information that the service representative might find helpful. Power management Power management reduces the power consumption of certain components of the computer such as the system power supply, processor, hard disk drives, and some monitors.
