Lenovo C225 Computer Hardware Maintenance Manual PDF

Pages 60
Year 2010
Language(s)
English en
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Summary of Content for Lenovo C225 Computer Hardware Maintenance Manual PDF

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About this manual 1 This manual contains service and reference information for Lenovo C205 computers listed on the cover... It is intended only for trained servicers who are familiar with Lenovo computer products...

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Related Web URLs are: Lenovo information for Suppliers website: http://www-03... ibm... com/procurement/proweb... nsf/ ContentDocsByTitle/United+States~Information+for+suppliers RoHS Directive: http://europa... eu... int/eur-lex/pri/en/oj/dat/2003/l_037/ l_03720030213en00190023... pdf California Senate Bills 20, 50: http://www... ciwmb... ca... gov/HHW/Events/AnnualConf/2004/ presentation/MPaparian... pdf

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Do not perform any action that causes hazards to the customer, or that makes the equipment unsafe... Before you start the machine, ensure that other service representatives and the customers personnel are not in a hazardous position... Place removed covers and other parts in a safe place, away from all personnel, while you are servicing the machine... Keep your tool case away from walk areas so that other people will not trip over it... Do not wear loose clothing that can be trapped in the moving parts of a machine... Ensure that your sleeves are fastened or rolled up above your elbows... If your hair is long, fasten it... Insert the ends of your necktie or scarf inside clothing or fasten it with a nonconductive clip, approximately 8 centimeters (3 inches) from the end... Do not wear jewelry, chains, metal-frame eyeglasses, or metal fasteners for your clothing... Remember: Metal objects are good electrical conductors...

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Find the room emergency power-off (EPO) switch, disconnecting switch, or electrical outlet... If an electrical accident occurs, you can then operate the switch or unplug the power cord quickly... Do not work alone under hazardous conditions or near equipment that has hazardous voltages... Disconnect all power before: Performing a mechanical inspection Working near power supplies Removing or installing main units Before you start to work on the machine, unplug the power cord... If you cannot unplug it, ask the customer to power-off the wall box that supplies power to the machine and to lock the wall box in the off position...

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Regularly inspect and maintain your electrical hand tools for safe operational condition... Do not use worn or broken tools and testers... Never assume that power has been disconnected from a circuit... First, check that it has been powered-off... Always look carefully for possible hazards in your work area... Examples of these hazards are moist floors, nongrounded power extension cables, power surges, and missing safety grounds... Do not touch live electrical circuits with the reflective surface of a plastic dental mirror... The surface is conductive; such touching can cause personal injury and machine damage... Do not service the following parts with the power on when they are removed from their normal operating places in a machine: Power supply units Pumps Blowers and fans Motor generators and similar units... (This practice ensures correct grounding of the units... ) If an electrical accident occurs: Use caution; do not become a victim yourself... Switch off power... Send another person to get medical aid...

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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... 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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When handling ESD-sensitive parts: Keep the parts in protective packages until they are inserted into the product... Avoid contact with other people... 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... Select a grounding system, such as those listed below, to provide protection that meets the specific service requirement...

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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... 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... Never turn on any equipment when there is evidence of fire, water, or structural damage... Disconnect the attached power cords, telecommunications systems, networks, and modems before you open the device covers, unless instructed otherwise in the installation and configuration procedures... Connect and disconnect cables as described in the following table when installing, moving, or opening covers on this product or attached devices...

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Do not remove the covers... Removing the covers of the laser product could result in exposure to hazardous laser radiation... There are no serviceable parts inside the device... Use of controls or adjustments or performance of procedures other than those specified herein might result in hazardous radiation exposure...

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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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General information 3 This chapter provides general information that applies to all machine types supported by this publication...

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General Checkout 4 The drives in the computer you are servicing might have been rearranged or the drive startup sequence 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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Machine type and model Processor or hard disk drive upgrades Failure symptom Do diagnostics indicate a failure? What, when, where, single, or multiple systems? Is the failure repeatable? Has this configuration ever worked? If it has been working, what changes were made prior to it failing? Is this the original reported failure? Diagnostics version Type and version level Hardware configuration Print (print screen) configuration currently in use BIOS level Operating system software Type and version level

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Using the Setup Utility 5 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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Password considerations A password can be any combination of up to 16 characters (a-z and 0-9) and symbols; ... For security reasons, it is a good idea to use a strong password that cannot be easily compromised... We suggest the passwords should adhere to the following rules:

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2... The password dialog box will be displayed... Enter New Password and confirm New Password dialog... A setup notice will display that changes have been saved...

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2... From the Setup Utility program menu, select Devices... 3... Select ATA Drives Setup... 4... Select IDE or AHCI and press Enter to set the SATA mode... 5... Return to the Setup Utility program menu and press F10 to save

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Note: If you are using a USB keyboard and the Startup Device Menu does not display using this method, repeatedly press and release the F12 key rather than leaving it pressed when turning on the computer...

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When you finish viewing or changing settings, press Esc to return to the Setup Utility program menu (you might have to press Esc several times)... If you want to save the new settings, select Save changes and Exit before you exit... Otherwise, your changes will not be saved...

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Symptom-to-FRU Index 6 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 13... 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 25...

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Power Cord On/Off Switch connector On/Off Switch Power Supply connector Motherboard Power Supply connectors Microprocessor(s) connection

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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, set keyboardless operation in Setup to Enable... The BIOS then ignores the missing keyboard during POST...

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If this computer has a parallel ATA hard disk drive, make sure that the hard disk drive is jumpered as a master and the optical drive is jumpered as a slave... 1... Power-off the computer... 2... Remove or disconnect the following components (if installed) one at a

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Locating components and connectors The following illustrations will help you to locate the various components and connectors in your computer...

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5 LED ON/OFF indicator (When turning on the LED, the indicator light will be off; when turning off the LED, the indicator light will be solid on... )

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Rear view The following illustration shows the location of connectors on the rear of the computer...

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Internal components The following illustration shows the components inside your computer...

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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 computer functions and supports a variety of devices that are factory-installed or that you can install later...

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17 Front LED indicator control module connector

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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 or in the Hardware Maintenance Manual (HMM) for the computer... To obtain copies of the Safety and Warranty Guide or HMM, go to the Support web site at: http://consumersupport... lenovo... com...

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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 Locating connectors on the rear of the computer...

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7... Push out the latches on both sides of the memory socket to release the memory module and gently pull the memory module upward to remove it from its socket ... Both memory modules can be removed by following the same procedure...

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It helps 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...

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To remove the computer cover: 1... Remove the computer stand... Refer to Removing the computer stand...

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To remove the computer rear deco 1... Remove the computer stand... Refer to Removing the computer stand...

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To replace the hard disk drive 1... Remove the computer stand... Refer to Removing the computer stand...

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6... Remove the 4 screws that secure the hard disk drive to the drive bay... Slide the hard disk drive out of the drive bay...

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(1) Align the new optical drive with the cover, then push the cover back into position...

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6... Slide the new converter board into the insulating box... 7... Connect the power cables to the new converter board...

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To replace the LED touch panel control module 1... Remove the computer stand... Refer to Removing the computer stand...

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To replace the function board 1... Remove the computer stand... Refer to Removing the computer stand...

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To replace the LED board 1... Remove the computer stand... Refer to Removing the computer stand...

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To remove the motherboard cover 1... Remove the computer stand... Refer to Removing the computer stand...

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To replace the system fan 1... Remove the computer stand... Refer to Removing the computer stand...

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7... Align the 8 screw holes on the new heatsink with the mounting holes on the motherboard... Screw the new heatsink in...

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To replace the WLAN card 1... Remove the computer stand... Refer to Removing the computer stand...

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To replace the TV tuner card 1... Remove the computer stand... Refer to Removing the computer stand...

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To replace the speakers system 1... Remove the computer stand... Refer to Removing the computer stand...

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12... Place the new motherboard onto the chassis, then align the 5 screw holes in the motherboard with the mounting holes on the chassis...

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17... Remove the 4 screws that secure the LED panel to the panel bracket, then lift it out the LED panel bracket...

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21... Reconnect all cables and reattach all related parts...

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To replace the camera 1... Remove the computer stand... Refer to Removing the computer stand...

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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 or in the Hardware Maintenance Manual (HMM) for the computer... To obtain copies of the Safety and Warranty Guide or HMM, go to the Support web site at: http://consumersupport... lenovo... com...

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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 or in the Hardware Maintenance Manual (HMM) for the computer... To obtain copies of the Safety and Warranty Guide or HMM, go to the Support web site at: http://consumersupport... lenovo... com...

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1... Remove any media (disks, CDs, or memory cards) from the drives,

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Being an ACPI BIOS system, the operating system is allowed to control the power management features of the computer and the setting for Advanced Power Management (APM) BIOS mode is ignored... Not all operating systems support ACPI BIOS mode...

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Carefully read all documents shipped with your computer before you install and use the product for the first time... Lenovo is not responsible for any loss except when caused by installation and operations performed by Lenovo professional service personnel... You are responsible if you fail to operate the product according to instructions and requirements in the manuals included with your computer, or operate the product inappropriately...

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Names or marks of certain companies mentioned in the manuals included with your computer or this document do not necessarily indicate that related software or hardware is included... The actual configuration of the product depends on the packing list description...

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