Lenovo 4221, 4220, 4222, 4215, 4219 manual Safety information, General safety, Electrical safety

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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:

Observe good housekeeping in the area of the machines 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 between your feet.

3.Use a slow lifting force. Never move suddenly or twist when you attempt to lift.

4.Lift by standing or by pushing up with your leg muscles; this action removes the strain from the muscles in your back. Do not attempt to lift any objects that weigh more than 16 kg (35 lb) or objects that you think are too heavy for you.

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 customer's 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.

Wear safety glasses when you are: hammering, drilling, soldering, cutting wire, attaching springs, using solvents, or working in any other conditions that might be hazardous to your eyes.

After service, reinstall all safety shields, guards, labels, and ground wires. Replace any safety device that is worn or defective.

Reinstall all covers correctly before returning the machine to the customer.

Electrical safety

CAUTION:

Electrical current from power, telephone, and communication cables can be hazardous. To avoid personal injury or equipment damage, disconnect the attached power cords, telecommunication systems, networks, and modems before you open the server/workstation covers, unless instructed otherwise in the installation and configuration procedures.

Observe the following rules when working on electrical equipment.

© Copyright Lenovo 2010, 2011

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Contents Hardware Maintenance Manual Page Hardware Maintenance Manual Fourth Edition Octorber Copyright Lenovo 2010 Contents FRU lists 105 Acpi BiosImportant Safety Information About this manualImportant information about replacing RoHS compliant FRUs Hardware Maintenance Manual Safety information General safetyElectrical safety Hardware Maintenance Manual Safety inspection guide Voltage-selection switchSafety notices multi-lingual translations Handling electrostatic discharge-sensitive devicesGrounding requirements 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 CuidadoPerigo Safety information Hardware Maintenance Manual Safety information Hardware Maintenance Manual Connexion Déconnexion Vorsicht Achtung Arbeitsschutzrichtlinien beim Anheben der Maschine beachten Safety information Pericolo Per collegarsi Per scollegarsi AttenzionePrestare attenzione nel sollevare lapparecchiatura Safety information Peligro No debe Adopte procedimientos seguros al levantar el equipo Online Books folder General informationLenovo ThinkVantage Tools Lenovo WelcomeDimensions SpecificationsWeight EnvironmentGeneral Checkout Problem determination tipsHardware Maintenance Manual Diagnostics Lenovo ThinkVantage ToolboxLenovo System Toolbox PC-Doctor for Rescue and Recovery PC-Doctor for DOS Creating a diagnostic discRunning the diagnostic program from a diagnostic disc Running tests Navigating through the diagnostics programsDeviceID Viewing the test logDiagnostics Hardware Maintenance Manual Starting the Setup Utility program Using the Setup Utility programViewing and changing settings Using passwordsAdministrator Password Power-On PasswordHard Disk Password Setting, changing, and deleting a passwordExiting from the Setup Utility program Advanced settingsSelecting a startup device Selecting a temporary startup deviceHardware Maintenance Manual Configuring RAID Creating RAID volumesRAID Level Deleting RAID volumes Hard disk drive boot error Symptom-to-FRU IndexPower Supply Problems Error FRU/ActionDiagnostic error codes Diagnostic Error Code FRU/ActionXXX Bios Timeout 001-01X-XXX System Error 001-00X-XXX System ErrorXXX 001-255-XXX 001-256-XXX XXX 001-264-XXX System IRQ errorXXX 001-287-XXX 001-288-XXX System Timer 005-00X-XXX Video errorXXX 005-011-XXX 005-012-XXX Diagnostic Error Code FRU/Action 011-03X-XXX 011-04X-XXX Serial port failure XXX 011-014-XXX Serial port Control014-03X-XXX 014-04X-XXX Parallel port failure XXX 014-014-XXX Parallel port Control014-2XX-XXX 014-3XX-XXX Parallel port failure Diagnostic Error Code FRU/Action 025-00X-XXX 025-01X-XXX IDE interface failure 030-00X-XXX 030-01X-XXX Scsi interface failure 030-03X-XXX 030-04X-XXX Scsi interface errorDiagnostic Error Code FRU/Action XXXAudio port test halt, error threshold exceeded Diagnostic Error Code FRU/Action Diagnostic Error Code FRU/Action XXXVoltage Sensors test failed, cause unknown XXX-XXX Mouse error Beep symptoms Post error codes Post Error Message Description/ActionHard Disk Install Failure Miscellaneous error messages Message/Symptom FRU/ActionDisplay/Monitor Second device hard disk First device networkUndetermined problems Hardware Maintenance Manual Locations Locating connectors on the front of your computer Locating connectors on the rear of your computerReplacing FRUs Locating components Rear connector locationsComponent locations Locating parts on the system boardSystem board part locations Locating internal drivesDrive bay locations Removing the computer coverRemoving the computer cover Removing and reinstalling the front bezelRemoving the front bezel Installing or replacing a PCI cardOpening the PCI card latch Removing a PCI card Installing a PCI card Installing or replacing a memory moduleOpening the retaining clips Installing a memory module Installing or replacing the optical driveRemoving the optical drive Installing the optical drive Replacing the power supply assemblyRemoving the screws for the power supply assembly Replacing the batteryInstall a new battery Replacing the heat sink and fan assembly Replacing the microprocessor Removing the heat sink and fan assemblyReplacing FRUs Removing the microprocessor Replacing the system boardRemoving the system board Installing the socket cover Removing the primary hard disk drive Replacing the primary hard disk driveInstalling the hard disk drive into the bracket Replacing the secondary hard disk drive Installing the primary hard disk driveRemoving the secondary hard disk drive Replacing the card reader Installing the secondary hard disk driveRemoving the card reader Replacing the front fan assemblyRemoving the front fan assembly Installing the front fan assembly Replacing the rear fan assemblyRemoving the rear fan assembly Installing the rear fan assembly Replacing the front audio and USB assemblyReplacing the internal speaker Removing the old internal speaker Installing a new internal speaker Completing the FRU replacementReinstalling the computer cover FRU lists Overall MT 4215, 4219, 4220, 4221,Item # FRUs B3H MT 4220 49C CTO B1Y B1G B1M B1A B1Q B1T B1C B1B B1H B1V B1K B1R B1E B1J FRU # CRU MT 4220 45H CTO 71Y7266 41X5582 MT 4220 13G CTO 45N8203 A2G A3G A4M A5M A6J A7J A8CFRUs listed in the following tables are not illustrated Mechanical FRUs43N9091 41R6116 43N9149 Keyboard Lenovo Preferred Pro USB -- without hub Keyboard and MouseA6V A7B A7V A8B A8V A9B A9V B1B B1V B3B B4B A6F A7F A8F A9F B1F A1J A6J A7J A8S A8D A8Y A9S A9D A9Y B1S B1D B1Y A7K A8K A9K B1K41A5316 SF/G Keyboard Preferred Pro Full Size PS/2 PS/2--Belgium English MT 4215 CTO MT 4219 CTO PS/2--Dutch MT 4215 CTO MT 4219 CTO PS/2--Greek/US MT 4215 CTO MT 4219 CTO PS/2--Korean MT 4215 CTO MT 4219 CTO PS/2--Russian/Cyrillic MT 4215 CTO MT 4219 CTO PS/2--Thailand MT 4215 CTO MT 4219 CTO Keyboard Enhanced Performance Enhanced--Bulgarian MT 4215 CTO MT 4219 CTO Enhanced--French Canadian MT 4215 CTO MT 4219 CTO Enhanced--Hungarian MT 4215 CTO MT 4219 CTO Enhanced--Norwegian MT 4215 CTO MT 4219 CTO Enhanced--Slovak MT 4215 CTO MT 4219 CTO Mice Adapters and miscellaneous FRUs Adapters and miscellaneous FRUs71Y6863 DVI to VGA Dongle MT 4215 CTO MT 4219 CTO Power Cords --primary Power CordsA7C A8C A9C B1C B5C A6Y A6L A7Y A7L A8Y A8L A9Y A9L B1Y B1LA8M A9M B1M A9R B1K B1RB1A B2G B3B B3H B4B B4H A7A A8M A8G A8A A9M A9G A9A B1M B1G B1A B2G A8Q A9Q B1Q Power Cords --secondaryLine Cord Brazil MT 4215 CTO MT 4219 CTO 41R3233 Windows Vista Business Recovery discs Windows Vista Business 32 Recovery CDWindows 7 Professional Windows 7 Professional 64 Recovery CDA7G A8F A8G A9F A9G B1F B1G B2G A5G A6G A7G A8G A9G B1G B2G03W2716 03W2719 B1C B5C L2 Emea NL/FR/GR/IT/EN B4BWindows 7 Professional 64 Office 2010 Starter Windows 7 Professional 64 Office 2010 Starter Recovery CD03W2742 03W2748 03W2754 03W2740 Windows XP Professional 64 Mono Recovery CD Windows XP Professional 64 Recovery CDWindows XP Professional Windows XP Professional 64 MonoWindows XP Professional Recovery CD Multilingual Nordics DK/FI/SV/NO/EN MT 4215 CTO MT 4219 CTO Hardware Maintenance Manual Additional service information Updating flashing the Bios from a disc Updating flashing Bios from your operating systemRecovering from a POST/BIOS update failure Power management Automatic configuration and power interface Acpi BiosAutomatic Power-On features Hardware Maintenance Manual Appendix A. Notices Trademarks Television output noticePage 71Y8031
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