Lenovo E49 manual Safety information

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Chapter 1. Safety information 21

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Contents Lenovo E49 and ZhaoYang E49 Hardware Maintenance ManualSecond Edition May Copyright Lenovo Contents Ii Hardware Maintenance Manual About this manual Iv Hardware Maintenance Manual General safety Safety informationElectrical safety Safety inspection guide Grounding requirements Safety notices multilingual translationsSafety information Hardware Maintenance Manual Safety information Perigo Perigo Vorsicht Vorsicht Vorsicht Safety information Hardware Maintenance Manual Safety information Hardware Maintenance Manual Safety information Hardware Maintenance Manual Laser compliance statement multilingual translations Hardware Maintenance Manual Safety information Hardware Maintenance Manual Safety information Hardware Maintenance Manual Safety information Hardware Maintenance Manual Important service information Before replacing partsStrategy for replacing FRUs For products shipped after June Strategy for replacing a hard disk driveImportant notice for replacing a system board Important information about replacing RoHS compliant FRUsFollowing are not covered under warranty General checkoutWhat to do first Checking the ac power adapter Power system checkoutChecking operational charging Checking the battery packHardware Maintenance Manual Power-on password Related service informationRecovering the computer settings PasswordsHibernation mode Power managementScreen blank mode Sleep modeRelated service information Hardware Maintenance Manual Specifications Indicator Meaning Status indicatorsKey combination Description Fn key combinationsHardware Maintenance Manual Plastic to plastic FRU replacement noticesScrew notices CRU statement for customersTorque driver General guidelines Removing and replacing a FRUOptical drive Battery packRemoval steps of optical drive Bottom slot cover Memory modulesRemoval steps of bottom slot cover Removal steps of memory modules Hard disk drive assemblyRemoval steps of hard disk drive assembly Removal steps of hard disk drive bracket PCI Express Mini Card for wireless LANRemoval steps of PCI Express Mini Card for wireless LAN Removal steps of thermal fan assembly Thermal fan assemblyHardware Maintenance Manual Microprocessor Removal steps of microprocessor KeyboardRemoval steps of keyboard Hardware Maintenance Manual Keyboard bezel Remove the screws That secure the keyboard bezel Removal steps of keyboard bezelPower board Backup battery Removal steps of power boardRemoval steps of backup battery Important notices for handling the system board System board assemblyLCD unit Removal steps of system board assemblyRemoval steps of LCD unit and hinge brackets When installing DC-in cable and base cover Removal steps of DC-in cable and base cover Applying labels to the base cover LCD front bezelRemoval steps of LCD front bezel Integrated camera LCD panel, LCD cable, and hingesRemoval steps of integrated camera Removal steps of LCD panel and LCD cable Removal steps of hinges Antenna assembly and LCD rear coverRemoval steps of antenna assembly and LCD rear cover Front view LocationsRear view Right-side viewLenovo E49 and ZhaoYang E49 bottom and left-side view Bottom and left-side viewHardware Maintenance Manual CRU statement for customers Parts listCRU OverallParts list CRU LSS MB DIS N13M-GE1 1G E49A WO/3G/BT LCD FRUsFRU Miscellaneous parts Ac power adaptersPower cords Parts list 3-pin power cords Longwell Parts list 3-pin power cords Volex Parts list 2-pin power cords Linetek Hardware Maintenance Manual Appendix A. Notices Trademarks Electronic emissions noticesPage Part Number 1P P/N