ThinkPad R500の取扱説明書・マニュアル [全226ページ 6.93MB]
43y6631_02.pdf
gizport - 2014-02-26
http://download.lenovo.com/.../43y6631_02.pdf - 6.93MB
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226page / 6.93MB
Safety inspection guideThe purpose of this inspection guide is to assist you in identifying potentiallyunsafe conditions. As each machine was designed and built, required safety itemswere installed to protect users and service technicians from injury. This guideaddresses only those items. You should use good judgment to identify potentialsafety hazards due to attachment of non-ThinkPad features or options not coveredby this inspection guide.If any unsafe conditions are present, you must determine how serious the apparenthazard could be and whether you can continue without first correcting theproblem.Consider these conditions and the safety hazards they present:vElectrical hazards, especially primary power (primary voltage on the frame cancause serious or fatal electrical shock)vExplosive hazards, such as a damaged CRT face or a bulging capacitorvMechanical hazards, such as loose or missing hardwareTo determine whether there are any potentially unsafe conditions, use thefollowing checklist at the beginning of every service task. Begin the checks withthe power off, and the power cord disconnected.Checklist:1.Check exterior covers for damage (loose, broken, or sharp edges).2.Power off the computer. Disconnect the power cord.3.Check the power cord for:a.A third-wire ground connector in good condition. Use a meter to measurethird-wire ground continuity for 0.1 ohm or less between the externalground pin and the frame ground.b.The power cord should be the type specified in the parts list.c.Insulation must not be frayed or worn.4.Check for cracked or bulging batteries.5.Remove the cover.6.Check for any obvious non-ThinkPad alterations. Use good judgment as to thesafety of any non-ThinkPad alterations.7.Check inside the unit for any obvious unsafe conditions, such as metal filings,contamination, water or other liquids, or signs of fire or smoke damage.8.Check for worn, frayed, or pinched cables.9.Check that the power-supply cover fasteners (screws or rivets) have not beenremoved or tampered with.Safety information 5
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