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Lenovo C20 Series Touch All-In-One PC Hardware Maintenance Manual
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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
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Chapter 7... Replacing hardware ... ... ... ... 21 General information... ... ... ... ... ... ... ... ... ... ... ... ... 21 Replacing the keyboard and mouse ... ... ... ... ... ... 22 Replacing the power adapter ... ... ... ... ... ... ... ... ... 22 Removing the rear cover ... ... ... ... ... ... ... ... ... ... ... 24 Replacing the hard disk drive ... ... ... ... ... ... ... ... ... 30 Replacing a memory module ... ... ... ... ... ... ... ... ... 32 Replacing the optical drive ... ... ... ... ... ... ... ... ... ... 33 Replacing the system fan ... ... ... ... ... ... ... ... ... ... 34 Replacing the Wi-Fi card... ... ... ... ... ... ... ... ... ... ... 35 Replacing the speaker system ... ... ... ... ... ... ... ... 36 Replacing the power switch board ... ... ... ... ... ... ... 37 Replacing the motherboard or the heat-sink module ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... 38 Replacing the I/O Shielding... ... ... ... ... ... ... ... ... ... 40 Replacing the camera ... ... ... ... ... ... ... ... ... ... ... ... 41 Replacing the converter board ... ... ... ... ... ... ... ... 42 Replacing the LED panel... ... ... ... ... ... ... ... ... ... ... 43
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This manual contains service and reference information for Lenovo C20-30/C20-05 Touch All-In-One computer listed on the cover... It is intended only for trained servicers who are familiar with Lenovo computer products...
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CAUTION: 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...
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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...
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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... However, good judgment should be used to identify potential safety hazards due to attachment of features or options not covered by this inspection guide...
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Disconnect the attached power cords, telecommunications cables, network cables, and modem cables before you open the device covers, unless instructed otherwise in the installation and configuration procedures...
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CAUTION: When replacing the lithium battery, use only Part Number 45C1566 or an equivalent type battery recommended by the manufacturer... If your system has a module containing a lithium battery, replace it only with the same module type made by the same manufacturer... The battery contains lithium and can explode if not properly used, handled, or disposed of... Do not:
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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...
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This chapter provides general information that applies to all computer models covered by this manual...
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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...
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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...
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4... Type the new password, then press the Enter key... Retype the new password to confirm it... If you typed the new password correctly, the new password will be installed... A Setup Notice will be displayed confirming that your changes have been saved...
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4... Type the new password, then press the Enter key... Retype the new password to confirm it... If you typed the new password correctly, the new password will be installed... A Setup Notice will be displayed confirming that your changes have been saved...
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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...
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Changing booting mode There are two boot modes UEFI and Legacy for your computer... The default boot mode for your computer is the UEFI mode... If you need to install a legacy Windows operating system (any operating system before Windows 8) on your computer, you must change the boot mode to Legacy support... The legacy Windows operating system cannot be installed if you dont change the boot mode...
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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...
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Keyboard error Cannot initialize the keyboard... Make sure the keyboard is properly connected to the computer and that no keys are held pressed during POST... To purposely configure the computer without a keyboard, select Keyboardless operation in Startup and set the option to Enabled... The BIOS then ignores the missing keyboard during POST...
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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...
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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...
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Step 3... Disconnect the failing power adapter from the computer...
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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...
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Step 5... Use a plastic spudger or a flat head screw driver to pries up the stand cover as shown...
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Step 8... Use a mylar sheet insert into the slot in-between the rear cover and front bezel, best practice insert angel is 45 angel as shown...
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Step 9... Sweep along the side, best practice sweep angel is keep the side line of the mylar sheet and the slot line in a 30 angel as shown...
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Step 12... Disconnect the LVDS cable to separate the rear cover from the front bezel...
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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...
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Step 5... Remove the 6 screws that secure the hard disk drive to the rear cover...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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Step 9... Remove the five screws that secure the motherboard to the rear cover and push the pin to release the heat-sink as shown...
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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...
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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...
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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...
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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...
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Step 8... To install the new LED panel module:The new LED panel module including: chassis, touch control board, LED panel bracket, front bezel and panel glass...
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This chapter lists the information on the field replaceable units (FRUs) for Lenovo C2005 Touch All-In-One desktop computer...
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ST Pharaoh 4K Non-MC ST500DM002 500GHDD 16200674
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Chicony LXH-MSU-1111 Black Silk Mouse-LVT 25200529
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Liteon SK-8861(Nordic) 2... 4G KB-White8 25210995
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Longwell B LAck single head 1... 0M Switzer LAnd C5 Power Cord 31039103
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This chapter lists the information on the field replaceable units (FRUs) for Lenovo C2030 Touch All-In-One desktop computer...
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Rear Cover C C2030 UMA N-ODD BLK 5CB0H03377
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Chicony LXH-MSU-1111 Black Silk Mouse-LVT 25200529
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Liteon SK-8861(Nordic) 2... 4G KB-Black8 25209183
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Longwell B LAck single head 1... 0M Switzer LAnd C5 Power Cord 31039103
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As this computer has an ACPI BIOS system, the operating system is allowed to control the power management features of the computer and the settings for Advanced Power Management (APM) BIOS mode is ignored... Not all operating systems support ACPI BIOS mode...
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