Lenovo Z50-70 Specifications download pdf (Page 10)

G50-70/G50-70m/Z50-70 Hardware Maintenance Manual

Handling devices that are sensitive to electrostatic discharge

Any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 between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.

Notes:

1. Use product-specific ESD procedures when they exceed the requirements

noted here.

2. Make sure that the ESD protective devices you use have been certied (ISO

9000) as fully effective.

WhenhandlingESD-sensitiveparts:

• Keepthepartsinprotectivepackagesuntiltheyareinsertedintotheproduct.

• Avoidcontactwithotherpeople.

• Wearagroundedwriststrap againstyour skintoeliminatestaticon your

body.

• Preventthepartfromtouchingyourclothing.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specicservicerequirement.

Note:

The use of a grounding system to guard against ESD damage is desirable but not

necessary.

– 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.

Grounding requirements

Electricalgroundingofthecomputerisrequiredforoperatorsafetyandcorrect

systemfunction.Propergrounding oftheelectricaloutletcanbeveriedby a

certiedelectrician.

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Lenovo Z50-70 Specifications Page 10