Lenovo 5114, 5106, 5150, 5110 manual Safety information

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Chapter 2. Safety information 15

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Contents ThinkCentre Hardware Maintenance Manual Page ThinkCentre Hardware Maintenance Manual Second Edition September Copyright Lenovo Contents Appendix A. Notices 117 About this manual Important Safety InformationThinkCentre Hardware Maintenance Manual Safety information General safetyElectrical safety ThinkCentre Hardware Maintenance Manual Handling electrostatic discharge-sensitive devices Safety inspection guideGrounding requirements Safety notices multi-lingual translationsTo Connect To Disconnect ≥18 kg 37 lbs ≥32 kg 70.5 lbs ≥55 kg 121.2 lbs Safety information Perigo Para Conectar Para Desconectar CuidadoPerigo Safety information ThinkCentre Hardware Maintenance Manual Safety information Connexion Déconnexion ≥18 kg 37 lbs ≥32 kg 70.5 lbs ≥55 kg 121.2 lbs Vorsicht Achtung ThinkCentre Hardware Maintenance Manual Safety information Per collegarsi Per scollegarsi PericoloPrestare attenzione nel sollevare lapparecchiatura ThinkCentre Hardware Maintenance Manual Peligro No debe Adopte procedimientos seguros al levantar el equipo ThinkCentre Hardware Maintenance Manual Accessing Lenovo programs on the Windows 7 operating system SpecificationsGeneral information Lenovo programsProgram Control Panel section Green text in Control Panel Program Icon nameAdditional information resources Accessing Lenovo programs on the Windows 8 operating systemThinkCentre Hardware Maintenance Manual General Checkout Problem determination tipsThinkCentre Hardware Maintenance Manual Troubleshooting and diagnostics Basic troubleshootingSymptom Action Troubleshooting procedure Accessing Control Panel on the Windows 8 operating systemTroubleshooting Audio problems No audio in WindowsSound comes from one external speaker only CD problems No audio in DOS applications or gamesCD or DVD does not work Black screen instead of DVD video DVD problemsDVD movie will not play No audio or intermittent audio while playing DVD movieKeyboard, mouse, or pointing device problems Intermittent problemsPlayback is very slow or choppy Invalid disc or no disc found messageAll or some keys on the keyboard do not work Mouse or pointing device does not workPointer on the screen does not move smoothly with the mouse Wireless keyboard does not work Monitor problemsFingerprint reader does not work Wrong characters appear on the screenImage is discolored Image appears to be flickeringEthernet problems Networking problemsAdapter stops working for no apparent reason Wireless LAN problemOption problems Wireless WAN problemBluetooth problems An option that was just installed does not work Performance and lockup problemsAn option that previously worked does not work now Insufficient free hard disk drive spaceClick Start Computer Excessive number of fragmented filesSerial port problems Printer problemsSoftware does not work as expected Software problemsUSB problems DiagnosticsLenovo Solution Center Troubleshooting and diagnostics ThinkCentre Hardware Maintenance Manual Starting the Setup Utility program Using the Setup Utility programViewing and changing settings Using passwordsPower-On Password Password considerationsAdministrator Password Hard Disk PasswordSelecting a startup device Enabling or disabling a deviceSelecting a temporary startup device Selecting or changing the startup device sequenceEnabling ErP compliance mode Exiting the Setup Utility program ThinkCentre Hardware Maintenance Manual Hard disk drive boot error Symptom-to-FRU IndexPower Supply Problems Beep symptomsBeep Symptom FRU/Action Post error codesShort and 1 long beeps Dram memory error Error code Post Error Message Description/ActionMiscellaneous error conditions Message/Symptom FRU/ActionDisplay/Monitor Message/Symptom FRU/Action Undetermined problems ThinkCentre Hardware Maintenance Manual Locations Front connector, control, and indicator locationsRear connector locations Locating connectors on the rear of your computerLocating major FRUs and CRUs Looking up FRU information Number FRU description Self-service CRU Optional-service CRULocating parts on the system board Locations of the parts and connectors on the system boardThinkCentre Hardware Maintenance Manual Adjusting the computer stand Replacing FRUsRemoving the computer stand Removing the computer cover Opening the system board shielding Opening and closing the system board shieldingClosing the system board shielding Replacing FRUs Installing the rear I/O shielding Replacing the rear I/O shieldingRemoving the rear I/O shielding Removing the hard disk drive Replacing the hard disk driveInstalling a hard disk drive Replacing the optical drive Removing the optical drive Installing an optical driveReplacing the memory module Removing the memory module Installing a memory moduleRemoving the microprocessor fan assembly Replacing the microprocessor fan assemblyThinkCentre Hardware Maintenance Manual Installing a microprocessor fan assembly Replacing the microprocessor and heat sink assembly Removing the microprocessor and heat sink assembly Installing the microprocessor and heat sink assembly Replacing FRUs Removing the system board Replacing the system boardInstalling a system board Installing internal speakers Replacing the internal speakersRemoving the internal speakers Removing the rear I/O assembly Replacing the rear I/O assemblyInstalling a rear I/O assembly Replacing the inverter Removing the inverter Installing an inverter Removing the battery Replacing the batteryInstalling a battery Replacing the power supply assemblyRemoving the power supply assembly ThinkCentre Hardware Maintenance Manual Installing a power supply assembly ThinkCentre Hardware Maintenance Manual Removing the LCD panel Replacing the LCD panelInstalling an LCD panel Removing the Wifi card Replacing the Wifi cardInstalling the Wifi card Completing the FRU installation Installing a computer wall mountInstalling a computer stand Installing a computer coverReplacing FRUs ThinkCentre Hardware Maintenance Manual Additional Service Information Updating flashing the Bios from a disc Recovering from a POST/BIOS update failure Updating flashing the Bios from your operating systemPower management Automatic configuration and power interface Acpi BiosAutomatic Power-On features Appendix A. Notices European conformance CE mark Trademarks Television output notice119 IndexPage Page Part Number 1P P/N

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