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ideapad FLEX 4-1470/ideapad FLEX 4-1435/ideapad FLEX 4-1480/ideapad

FLEX 4-1570/ideapad FLEX 4-1580 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-specic 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.

Lenovo ideapad FLEX 4 User Manual

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