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Lenovo ノートパソコンの取扱説明書・マニュアル [全124ページ 12.00MB]

Lenovo G480/G485/G580/G585/G780 Hardware Maintenance Manual6Any computer part containing transistors or integrated circuits (ICs) should be considered sensitive to electrostatic discharge (ESD). ESD damage can occur when there is a difference in charge betw een objects. Protect against ESD damage by equalizing the charge so that the machine, the part, the work mat, and the person handling the part are all at the same charge.When handling ESD-sensitive parts: Keep the parts in protecti ve packages until they are inserted into the product. Avoid contact with other people. Wear a grounded wrist strap against yo ur skin to eliminate static on your body. Prevent the part from touching your cl othing. 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.- Attach the ESD ground clip to any frame ground, ground braid, or green-wire ground.- When working on a double-insulated or battery-operated system, use an ESD common ground or reference point. You can use coax or connector-outside shells on these systems.- Use the round ground prong of the ac plug on ac-operated computers.Electrical grounding of the computer is required for operator safety and correct system function. Proper grounding of the electrical outlet can be verified by a certified electrician.Handling devices that are sensitive to electrostatic dischargeNotes:1. Use product-specific ESD proc edures when they exceed the requirements noted here.2. Make sure that the ESD protective devices you use have been certified (ISO 9000) as fully effective.Notes:The use of a grounding system to gua rd against ESD damage is desirable but not necessary.Grounding requirements

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