Important This manual is intended only for trained servicers who are familiar with Lenovo products. Use this manual to troubleshoot problems effectively. Before servicing a Lenovo product, make sure to read all the information under Safety information on page 1 and Important service information on page 1. Safety information Safety information This chapter presents the following safety information that you need to get familiar with before you service a Lenovo G5. G5. 0 4. 5G5. 0 7. LZfg20P5HZe1UTqfQGWkdvMgN57zMgLvMhG_38rR52lJlfmFnrdsZJSkGnleRs4=h900' alt='Can Only Be Installed With A Lg Hlds Device' title='Can Only Be Installed With A Lg Hlds Device' />G5. Z5. Generalsafetyonpage2 Electricalsafetyonpage3 Safetyinspectionguideonpage5 Handlingdevicesthataresensitivetoelectrostaticdischargeonpage6 Groundingrequirementsonpage6 Safetynoticesmultilingualtranslationsonpage7 Lasercompliancestatementonpage1. G5. 0 3. 0G5. 0 4. G5. 0 7. 0G5. 0 7. Z5. 0 7. 0 Hardware Maintenance Manual General safety Followtheserulesbelowtoensuregeneralsafety Observe a good housekeeping in the area where the machines are put duringandafterthemaintenance. Whenliftinganyheavyobject 1. Makesurethatyoucanstandsafelywithoutslipping. Distributetheweightoftheobjectequallybetweenyourfeet. Useaslowliftingforce. Nevermovesuddenlyortwistwhenyouattempt toliftit. Liftitbystandingorpushingupwithyourlegmusclesthisactioncould avoidthestrainfromthemusclesinyourback. Donotattempttoliftany objectthatweighsmorethan1. Do not perform any action that causes hazards to the customer, or that makesthemachineunsafe. Safety information Electrical safety Observethefollowingruleswhenworkingonelectricalequipments. Important Use only approved tools and test equipments. Some hand tools have handles covered with a soft material that does not insulate you when working with live electrical currents. Many customers have rubber floor mats near their machines that contain small conductive fibers to decrease electrostatic discharges. G5. 0 3. 0G5. 0 4. G5. 0 7. 0G5. 0 7. Z5. 0 7. 0 Hardware Maintenance Manual Alwayslookcarefullyforpossiblehazardsinyourworkarea. Examplesof thesehazardsaremoistfloors,nongroundedpowerextensioncables,power surges,andmissingsafetygrounds. Do not touch live electrical circuits with the reflective surface of a plastic dentalmirror. Thesurfaceisconductivesuchtouchingcancausepersonal injuryandmachinedamage. Donotservicethefollowingpartswiththepoweronwhentheyareremoved fromtheirnormaloperatingplacesinamachine Powersupplyunits Pumps Blowersandfans Motorgenerators andsimilarunits. Thispracticeensurescorrectgroundingoftheunits. Ifanelectricalaccidentoccurs Cautiondonotbecomeavictimyourself. Thepowercordshouldbethetypespecifiedinthepartslist. Insulationmustnotbefrayedorworn. Checkforcrackedorbulgingbatteries. Removethecover. Checkforanyobviousnon Lenovoalterations. Usegoodjudgmentastothe safetyofanynon Lenovoalterations. 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. Checkforworn,frayed,orpinchedcables. G5. 0 3. 0G5. 0 4. G5. 0 7. 0G5. 0 7. Z5. 0 7. 0 Hardware Maintenance Manual Handling devices that are sensitive to electrostatic discharge AnycomputerpartcontainingtransistorsorintegratedcircuitsICsshouldbe consideredsensitivetoelectrostaticdischargeESD. ESDdamagecanoccur when there is a difference in charge between objects. Protect against ESD damagebyequalizingthechargesothatthemachine,thepart,theworkmat, andthepersonhandlingthepartareallatthesamecharge. Notes 1. Use product specific ESD procedures when they exceed the requirements noted here. Safety information Safety notices multilingual translations The safety notices in this section are provided in English, French, German, Hebrew,Italian,Japanese,andSpanish. Safety notice 1 Before the computer is powered on after FRU replacement, make sure all screws, springs, and other small parts are in place and are not left loose inside the computer. G5. 0 3. 0G5. 0 4. G5. 0 7. 0G5. 0 7. Z5. 0 7. 0 Hardware Maintenance Manual Safety notice 2 DANGER Some standby batteries contain a small amount of nickel and cadmium. Do not disassemble a standby battery, recharge it, throw it into fire or water, or short circuit it. Dispose of the battery as required by local ordinances or regulations. Safety information Safety notice 3 DANGER The battery pack contains small amounts of nickel. Do not disassemble it, throw it into fire or water, or short circuit it. Dispose of the battery pack as required by local ordinances or regulations. Use only the battery in the appropriate parts listing when replacing the battery pack. G5. 0 3. 0G5. 0 4. G5. 0 7. 0G5. 0 7. Z5. 0 7. 0 Hardware Maintenance Manual Safety notice 4 DANGER The lithium battery can cause a fire, an explosion, or a severe burn. Do not recharge it, remove its polarized connector, disassemble it, heat it above 1. C 2. 12F, incinerate it, or expose its cell contents to water. Dispose of the battery as required by local ordinances or regulations. Safety information Safety notice 5 If the LCD breaks and the fluid from inside the LCD gets into your eyes or on your hands, immediately wash the affected areas with water at least for 1. Seek medical care if any symptoms caused by the fluid are present after washing. Si le panneau daffichage. G5. 0 3. 0G5. 0 4. G5. 0 7. 0G5. 0 7. Z5. 0 7. 0 Hardware Maintenance Manual Safety notice 6 DANGER To avoid shock, do not remove the plastic cover that protects the lower part of the inverter card. Afin dviter tout risque de choc lectrique, ne retirez pas le cache en plastique protgeant la partie infrieure de la carte dalimentation. Safety information Safety notice 8 DANGER Before removing any FRU, turn off the computer, unplug all power cords from electrical outlets, remove the battery pack, and then disconnect any interconnecting cables. Avant de retirer une unit remplaable en clientle, mettez le systme hors tension, dbranchez tous les cordons dalimentation des socles de prise de courant, retirez la batterie et dconnectez tous les cordons dinterface. G5. 0 3. 0G5. 0 4. G5. 0 7. 0G5. 0 7. Z5. 0 7. 0 Hardware Maintenance Manual Laser compliance statement Some models of Lenovo computer are equipped from the factory with an optical storage device such as a CD ROM drive or a DVD ROM drive. Such devicesarealsosoldseparatelyasoptions. Ifoneofthesedrivesisinstalled, itiscertifiedintheU. S. toconformtotherequirementsoftheDepartmentof HealthandHumanServices2.