Safety information | Lenovo 10BL, E73Z guide

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Chapter 2. Safety information 15

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Lenovo 10BL, E73Z manual Safety information

Contents

ThinkCentre E73z Hardware Maintenance Manual Second Edition January Copyright Lenovo 2013 Contents Appendix A. Notices 115 About this manual Important safety information ThinkCentre E73z Hardware Maintenance Manual General safety Safety informationElectrical safety ThinkCentre E73z Hardware Maintenance Manual Handling electrostatic discharge-sensitive devices Safety inspection guide Grounding requirements Safety notices multi-lingual translations To Connect To Disconnect ≥18 kg 37 lbs ≥32 kg 70.5 lbs ≥55 kg 121.2 lbs Safety information Perigo Para Conectar Para Desconectar Cuidado Perigo Safety information ThinkCentre E73z Hardware Maintenance Manual Safety information Connexion Déconnexion ≥18 kg 37 lbs ≥32 kg 70.5 lbs ≥55 kg 121.2 lbs Vorsicht Arbeitsschutzrichtlinien beim Anheben der Maschine beachten Achtung ThinkCentre E73z Hardware Maintenance Manual Safety information Per collegarsi Per scollegarsi Pericolo Prestare attenzione nel sollevare lapparecchiatura ThinkCentre E73z Hardware Maintenance Manual Peligro No debe Adopte procedimientos seguros al levantar el equipo ThinkCentre E73z Hardware Maintenance Manual Environment SpecificationsGeneral information Lenovo programs Program Control Panel section Green text in Control Panel Accessing Lenovo programs on the Windows 7 operating systemAccessing Lenovo programs from Control Panel Program Icon name Lenovo Support Web site ThinkCentre E73z Hardware Maintenance Manual General checkout Problem determination tips ThinkCentre E73z Hardware Maintenance Manual Basic troubleshooting Troubleshooting and diagnosticsSymptom Action Click Settings Click Control Panel Troubleshooting procedure Audio problems TroubleshootingSystem Protection System Restore Sound comes from one external speaker only No audio in Windows No audio in DOS applications or games CD problemsCD or DVD does not work No audio or intermittent audio while playing DVD movie DVD problemsBlack screen instead of DVD video DVD movie will not play Invalid disc or no disc found message Intermittent problemsHard disk drive problems Playback is very slow or choppy All or some keys on the keyboard do not work Keyboard, mouse, or pointing device problems Click Hardware and Sound Click Devices and Printers Mouse or pointing device does not workOptical mouse Fingerprint reader does not work Monitor problemsWireless keyboard does not work Pointer on the screen does not move smoothly with the mouse Image appears to be flickering Wrong characters appear on the screen Your computer cannot connect to the network Networking problemsEthernet problems Image is discolored Click Start Control Panel Click Hardware and Sound Wake on LAN feature is not workingAdapter stops working for no apparent reason Bluetooth problem Option problemsWireless LAN problem Wireless WAN problem Insufficient free hard disk drive space Performance and lockup problemsAn option that was just installed does not work An option that previously worked does not work now Programs and Features area, click the Clean up button Click Disk CleanupClick Programs Click Turn Windows features on or off Click Disk Cleanup Click Clean up system files Click Defragment Now, then click Continue Printer problemsSerial port problems Insufficient memory Software does not work as expected Software problems Diagnostics USB problems Lenovo Solution Center Using passwords Using the Setup Utility programStarting the Setup Utility program Viewing and changing settings Setting, changing, and deleting a password Password considerationsPower-on password Administrator password Sata Controller USB SetupEnabling or disabling a device Selecting a startup device Selecting a temporary startup device Exiting the Setup Utility programSelecting or changing the startup device sequence Beep symptoms Symptom-to-FRU IndexHard disk drive boot error Power supply problems Error code Post error message Description/Action Post error codesBeep symptom FRU/Action Short and 1 long beeps Dram memory error Message/Symptom FRU/Action Miscellaneous error conditionsDisplay/Monitor Second device hard disk First device network Undetermined problems ThinkCentre E73z Hardware Maintenance Manual Locations Front connector, control, and indicator locations Locating major FRUs and CRUs Locating connectors on the rear of your computer Locating major FRUs and CRUs Number FRU description Self-service CRU Optional-service CRU Locations of the parts and connectors on the system board ThinkCentre E73z Hardware Maintenance Manual Removing and reinstalling the frame stand Removing and installing the computer standReplacing FRUs Removing the frame stand Removing and installing the monitor stand Removing the monitor stand Removing the computer cover Removing and reinstalling the feet stand Removing the feet stand Removing and installing the hard-disk-drive EMI shield Removing the hard-disk-drive EMI shield Installing the hard-disk-drive EMI shield Removing the hard disk drive from the bracket What to do next Removing the hard disk drive from the bracket Removing the optical drive Replacing the optical drive Installing the optical drive Removing and reinstalling the system board shield Removing the system board shield Replacing the rear I/O assembly Removing the power cord connector Removing the Vesa mount bracket Removing the power cord connector from the rear I/O assembly Removing the Vesa mount bracket Replacing the power supply Replacing the microprocessor fan Removing the two screws that secure the power supply Removing the microprocessor fan Replacing the heat sink assembly Replacing the microprocessor Opening the retainer to access the microprocessor Noting the orientation of the microprocessor in the socket Replacing the card reader Installing the microprocessor Removing the card reader Replacing the battery Replacing the converter board Removing the battery Installing or replacing a memory module Removing a memory module Replacing the internal speakers Installing a memory module Removing the internal speakers Replacing the integrated camera Removing the integrated camera Replacing the system board ThinkCentre E73z Hardware Maintenance Manual Replacing the LCD panel Removing the foot stands Removing the four screws that secure the LCD panel Reconnecting the LCD panel cable to the system board Replacing the Wi-Fi card Removing the Wi-Fi card Completing the parts replacement Installing the computer cover ThinkCentre E73z 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 systemClick Download Drivers & Software Click Use Quick Path Click Hardware and Sound Power Options Power managementAutomatic configuration and power interface Acpi Bios Automatic Power-on features 115 Appendix A. Notices European conformance CE mark Trademarks Television output notice 117 Index Rear connectors