Hand Tools in Computer Hardware Servicing

 

SOUTHERNINSTITUTEOFTECHNICALEDUCATION,INC. TVLTRACK- TVLTRACK - COMPUTERHARDWARESERVICING COMP COMPUTER UTERHARDW HARDWARE ARESERVICINGNCII  NCII

LessonPlan LESSON3:USEOFHANDTOOLSANDEQUIPMENT(UT)

I.OBJECTIVES Attheendofone-h Attheend ofone-hourlesson ourlesson,thestud ,thestudentsare entsareexpected expectedto to 1.Definetheusageoftoolsforrepairingcomputers; 2.Innumeratethetypesofhandtools 3.Identifythedifferenttypesofhandtotoolsusedincomputerhardwareservicing. 4. Valuetheimportanceof Valueth Valuethe eimportanceoffollowingsafetyprecautionwhilew followingsafetyprecautionwhileworking. orking. II.LEARNINGCONTENT: Topi Topic Topic c : Ha Hand Handtools ndtoolsin incomputer computerhardwareservicing hardwareservicing Code: TLE_ICTCS7/8UT-0a-1 Reference:CurriculumGuide,COMPUTERHARDWARESERVICINGNCII LearningModule,CBLM Materials: Mater Materials: ials: laptop/Digital laptop/Di laptop/Digit git alProjector/Pic Projector/Pictures tures III.LEARNINGTASKS A. A. P PreliminaryActivities reliminaryActivities 1. Prayer   2. 3. 3. 4. 4.

Greetings Checkingof Checking ofthe theAttendance Attendance Unlockingof Unlocking ofDifficulti Difficulties es Whatarethemeaningofthefollowing? a. ESD(Elec ESD(Electrostat ESD(Electrostat trostaticdischar icdischarge)-isthesuddenflowofelectric icdischarge)-i ge)-isthesudden sthesuddenflowof flowofelectricitybetweentwoelectrically itybetweentwoelectrically chargedobjectscausedbycontact,an electricalshort,ordielectric breakdown.A electricalshort,ordielectricbreakdown.A bu buil ildu dup p of of stat static ic elec electr tric icit ity y ca can n be be ca caus used ed by by turb turboc ocha harg rgin ing g or or by by elec electr tros osta tati tic c induction. b. Tor Torx- x- develo developed ped in1967byCamcarText in1967byCamcarTextron ron,is ,is the the tradem trademark ark for for atyp a type eofscre ofscrew w headcharacterizedbya6-pointstar-shapedpattern.Apopulargenericnameforthe driveisstar,asinstarscrewdrive driveisstar,asin starscrewdriveror rorstarbits. starbits. c. lintfree lintfreecloth-isaspecialtypeofcleaningcloththatdoesnotgiveupanyfluffwhen cloth-isaspecialtypeofcleaningcloththatdoesnotgiveupanyfluffwhen used.Being free freeof  of  lintmeans lintmeanstheclothislesslikelytobuildupacharge,whichcan theclothislesslikelytobuildupacharge,whichcan cause ESD; cause ESD; damagingelectroni damagingelectronic c equipment equipment like like HDtelevisi HDtelevisions,computer ons,computer monitors monitors anddigitalcameras. 5.Motivation Showpicturesoftoolsandaskthestudentiftheywanttoknowhowitworks.UsePicture Equationtorevealthetopicfortheday.

 

SOUTHERNINSTITUTEOFTECHNICALEDUCATION,INC. TVLTRACK- COMPUTERHARDW TVLTRACKCOMPUTERHARDWARESER ARESERVICING VICINGNCII NCII

B.Developmentofthelesson. 1.Activity a.Providepre-testforbasichandtools b.StudentwilllistdownthetypesofHandtoolsaccordingtotheusage. PreliminaryActivity:Pre-Test

Direction: Selecttheletterofthecorrectanswer.Writeyouranswersonaseparatesheetofpaper.

1.Whichtoolisusedforhardwaretostandontopreventstaticelectricityfrombuildingup? a.Anti-static m ma at

c.Philips he headscrewdriver  

b.Hexdriver

d.Wirecutter  

2.Whichtoolisusedtoloosenortightencross-headscrews? a.Anti-static m ma at

c.Philips he headscrewdriver  

b.Hexdriver

d.Wirecutter  

3.Whichtoolissometimescalledanutdriver?Itisusedtotightennutsinthesame waythatascrewdrivertightensscrews? a.Anti-static m ma at

c.Philips he headscrewdriver  

b.Hexdriver

d.Wirecutter  

4.Whichtoolisusedtostripandcutwires? a.Anti-static m ma at

c.Philips he headscrewdriver  

b.Hexdriver

d.Wirecutter  

5.Whichtoolisusedtoretrievepartsfromlocationthataretoosmallforyourhandto fit? a.PartRetriever

c.Cableties

b.Lint-free C Clloth

d.Flatheadscrewdriver  

6.Whichtoolisusedtocleandifferentcomputercomponentswithoutscratchingorleavingdebris? a.PartRetriever

c.Cableties

b.Lint-free C Clloth

d.Flatheadscrewdriver  

7.Whichtoolisusedtobundlecablesneatlyinsideandoutsideofacomputer? a.PartRetriever

c.Cableties

b.Lint-free C Clloth

d.Flatheadscrewdriver  

8.Whichtoolisusedtoloosenortightenslottedscrews? a.PartRetriever

c.Cableties

 

SOUTHERNINSTITUTEOFTECHNICALEDUCATION,INC. TVLTRACK- COMPUTERHARDW TVLTRACKCOMPUTERHARDWARESER ARESERVICING VICINGNCII NCII

b.Lint-free C Clloth

d.Flatheadscrewdriver  

9.Whichtoolisusedtoloosenortightenscrewsthathaveastar-likedepressiononthetop,afeaturethatis mainlyfoundonlaptop? a.Anti-static m ma at

c.Philips h he eadscrewdriver  

b.Torxscrewdriver

d.Wirecutter  

10.Whichtoolisusedtoblowawaydustanddebrisfromdifferentcomputerpartswithouttouchingthe components? a.Anti-static mat

c.Compressed air  

b.Hexdriver

d.Wirecutter

2.Analysis  

Whatwillhappenedifweuseimproperhandtools? Whatcouldbepossibleoutputifweusedproperhandtools?

3.Abstraction Askthefollowingquestion: 1.Whathaveyoulearnedfromourtopic? 2.Whydoweneedtoidentifythepurposeofthebasicusageofthehandtools?What couldtheproblemthatwilloccur,ifweusedimproperhandtools? 4.Application. Identifythebasichandtoolsandprovidethepurposeinusingthetools? 

IV.LESSONPROPER Tocompletehardwarerepairs,itisimportanttohaveatoolkitthatshouldcontainallofthenecessary tools.Asyougainexperi tools .Asyougainexperience,youwil ence,youwilllearnwhic llearnwhichtoolstohaveavail htoolstohaveavailablefordiff ablefordifferent erenttypesofjobs.Hard typesofjobs.Hardware ware toolsaregroupedintothesefourcategories:

Electro-StaticDischarge(ESD)tools Handtools Cleaningtools Diagnostictools

E le lectro-St ctro-Sta aticDis ticDis charg e e(E (E S D)Tools D)Tools

Staticelectricityiseasilygeneratedbyfrictiononcarpets,tileflooring,clothing,hair,fabric,andetc.The frictionofmovingairalonewillchargesuspendedparticlesandcausethebuildupofstaticelectricalchargeson peopleandobjectsintheenvironment.Groundedantistaticworkmatsusedwithantistaticwriststrapsprovide themostbasicmeansforthecontrolleddischargeofelectrostaticelectricity.

 

SOUTHERNINSTITUTEOFTECHNICALEDUCATION,INC. TVLTRACK- COMPUTERHARDW TVLTRACKCOMPUTERHARDWARESER ARESERVICING VICINGNCII NCII

ExamplesofESDTools:

Anti-staticwriststrap equipment.

–

UsedtopreventESDdamageto

computer  

Figure29.Anti-staticwriststrap

Anti-staticmat Usedtostandonorplacehardwareontopreventstatic electricityfrombuildingup. –

Figure30.Anti-staticmat .Anti-staticmat

HandTools

A handtoolisadeviceforperformingworkonamaterialoraphysicalsystemusingonlyhands.Hand tools canbe tools can beusedmanually usedmanually or orelect electrica rically llypowe powered,using red,using electrica electrical l current.Examples current.Examples of Hand Hand Tools Tools areas follows:

Table3.HandTools Tool

Description

FlatHeadScrewdriver  Usedtoloosenortightenslottedscrews. –

 

SOUTHERNINSTITUTEOFTECHNICALEDUCATION,INC. TVLTRACK- COMPUTERHARDW TVLTRACKCOMPUTERHARDWARESER ARESERVICING VICINGNCII NCII

PhilipsHeadScrewdriver  Usedtoloos Usedtoloosenortightencr enortightencross-headscrew oss-headscrews. s. – –

TorxScrewdriver-Usedtoloosenortightenscrewsthathaveastar-like depressiononthetop,afeaturethatismainlyfoundonlaptop.

HexDriver  Sometimescalledanutdriver,isusedtotightennutsinthe samewaythatascrewdrivertightensscrews.  – –

Needle-NosePliers Usedtoholdsmallparts. –

Tool

Description

WireCutter  Usedtostripandcutwires. –

 

SOUTHERNINSTITUTEOFTECHNICALEDUCATION,INC. TVLTRACK- COMPUTERHARDW TVLTRACKCOMPUTERHARDWARESER ARESERVICING VICINGNCII NCII

Tweezers Usedtomanipulatesmallparts. –

PartRetriever  Usedtoretrievepartsfromlocationthatistoosmallfor  yourhandtofit. –

Flashlight Usedtolightupareasthatyoucannotseewell. –

CleaningTools Havingtheappropriatecleaningtoolsisessentialwhenmaintainingorrepairingcomputers.Usingthese toolsensuresthatcomputercomponentsarenotdamagedduringcleaning.Examples:

Table4.CleaningTools Tools

Description

Lint-free Lintfree Cloth Cloth Usedtocleandifferentcomputercomponentswithout scratchingorleavingdebris. –

Tools

Description

Compress Comp ressed ed Air   Used Used to to blow blow away away du dust st an and d de debr bris is from from di diff ffer eren entt computerpartswithouttouchingthecomponents.   –

 

SOUTHERNINSTITUTEOFTECHNICALEDUCATION,INC. TVLTRACK- COMPUTERHARDW TVLTRACKCOMPUTERHARDWARESER ARESERVICING VICINGNCII NCII

Cable Ties Cable Ties computer.

 Used Used to to bu bund ndle le ca cabl bles es ne neat atly ly in insi side de an and d ou outs tsid ide e of of a

  –

PartsOrganizer  Usedtoholdscrew,jumpers,fastenersandothersmall partsandpreventsthemfromgettingmixedtogether.  – –

DiagnosticTools

Computersareeasiertouseandmoredepend Computersareeas iertouseandmoredependablewitheachnewgener ablewitheachnewgenerationofhardwareandoperati ationofhardwareandoperating ng systemupdate,butthatdoesnotmeantheyareproblem-fre systemupdate,butthatdoesnotmeantheyareproblem -free.Herearethemostpopular e.Herearethemostpopulartoolsfordiagnosi toolsfordiagnosing ng yourcomputerproblems:

Table5.Diagnostictools Tools

Description

Multimeter   Used Used to to te test st th the e inte integr grit ity y of of circ circui uits ts and and the the qual qualit ity y of  electricityincomputercomponents. –

LoopbackAdapter  Usedtotestthefunctionalityofcomputerports. –

ProperUseofESDTools

 

SOUTHERNINSTITUTEOFTECHNICALEDUCATION,INC. TVLTRACK- COMPUTERHARDW TVLTRACKCOMPUTERHARDWARESER ARESERVICING VICINGNCII NCII

ProperUseofAntistaticWristStrap

1. Connectthecab Connectthecabletoth letothemet emetalchassi alchassisofthe softhecomputer computer.. 2. Wrapthestra Wrapthestraparound paroundyourwr yourwrist. ist. 3. 3. The The co conn nnec ecti tion on wi will ll ke keep ep yo your ur body body at at the the sa same me vo volt ltag age e (potential)asthecomputer. 4. Attach the wire on the same side of the equipment as the wearing theantistatic wrist strap tokeep thewireout ofthe whileyouareworking. Figure Figu re 31. Proper Anti- static wrist

arm way Use of strap

CAUTION: NeverwearanantistaticwriststrapifyouarerepairingamonitororCRT.

ProperUseofAntistaticMat

1.Laythecomputeronthemat. 2.Connectthecomputertothematwiththecable. 3.Connectthemattoareliableelectricalgroundwithits cable. 4.Now,youandthecomputerareatgroundpotential.

Figure32.ProperUseofAnti-staticmat .ProperUseofAnti-staticmat

ProperUseofHandTools 1. Usetheprope Usethepropertypea rtypeandsize ndsizeofscrew ofscrewdriv driverbymatchi erbymatchingitto ngittothescre thescrew. w. 2. Donotovertighte Donotovertightensc nscrews rewsbecauset becausethethreads hethreadsmay maybecome becomestrip stripped. ped.

CAUTION:

Ifexcessiveforceisneededtoremoveoraddacomponent,something maybewrong.

CAUTION:

Magnetizedtoolsshouldnotbeusedaroundelectronicdevices.

CAUTION:

Pencilsshouldnotbeusedinsidethecomputerbecausethepencilleadcanactasaconductor  andmaydamagethecomputercomponents.

 

 

SOUTHERNINSTITUTEOFTECHNICALEDUCATION,INC. TVLTRACK- COMPUTERHARDW TVLTRACKCOMPUTERHARDWARESER ARESERVICING VICINGNCII NCII

ProperUseofCleaningMaterials

Tocleancomputersandaccessories: 1. Usemildcleanin Usemildcleaningsol gsolution utionandlint-fre andlint-freeclotht eclothtoclean ocleancomp computercase utercases,outsid s,outsideofmoni eofmonitor,LCD tor,LCDscr screen, een, CRTscreenandmouse. 2. Usecompre Usecompressedairto ssedairtoclean cleanheatsin heatsinks. ks. 3. UseIsopropyl UseIsopropylalcoh alcoholandlin olandlint-freesw t-freeswabstoc abstocleanRAM leanRAM.. 4. Usehand-heldv Usehand-heldvacuum acuumcleaner cleanerwithab withabrush rushattachmen attachmenttoclean ttocleanak akeyboa eyboard. rd.

CAUTION:

Beforecleaninganydevice,turn unplugthedevicefromthe source.

itoffand power  

Process

ReflectandUnderstand

1. Watchthevid Watchthevideopresent eopresentation ationsonyou sonyoutubeusing tubeusingthefollow thefollowingU ingURL: RL:

http://www.youtube.com/watch?v=s7M6_VeD http://www.youtube.com /watch?v=s7M6_VeDhJE&feature=relate hJE&feature=related d 2. After After watchingt watchingthepre hepresenta sentation, tion, youmustanswer youmustanswerthe thefollo followingquest wingquestions: ions:  Whatisyourobservationonthevideobeingpresentedtoyou?  Whatarethetoolsyouarefamiliarwith?  Doyouthinkthosetoolsareessentialincomputerhardwareservicing?Explainyouranswer.

 

SOUTHERNINSTITUTEOFTECHNICALEDUCATION,INC. TVLTRACK- COMPUTERHARDW TVLTRACKCOMPUTERHARDWARESER ARESERVICING VICINGNCII NCII

Transfer

Task1:Cleanitup!! Direction: Completethecomputercleaningchartshownbelow.Indicatetheappropriatetoolstobeusedin cleaningthedifferentcomputercomponents.

COMPUTERMAINTENANCE COMPONENTSTOCLEAN

CLEANWITH:

Computercase Mouse Keyboard Monitor  Speaker  Coolingfan Heatsink

Task2:Let’sdoit!

Direction: Usetheappropriatetoolstodoeachofthefollowingtasks.Safetyprecautionsmustbeobserved whileworking.

1.Loosencomputercasingscrews. 2.Blowawaydustfromkeyboard. 3.TightenscrewsofaPC. 4.Bundlecablesinsidethecomputer. 5.Testfunctionalityoftheprinterport.

 

SOUTHERNINSTITUTEOFTECHNICALEDUCATION,INC. TVLTRACK- COMPUTERHARDW TVLTRACKCOMPUTERHARDWARESER ARESERVICING VICINGNCII NCII

ScoringRubrics: Wasthetoolusedaccurately? Task Yes

1.Loosencomputercasingscrews 2.Blowawaydustfromkeyboard 3.TightenscrewsofaPC 4.Bundlecablesinsidethecomputer  5.Testfunctionalityoftheprinterport

Note: EachYESforaccurateuseoftoolswillbeequivalentto2points. TotalScore= NumberofYESforaccurateusedoftools.

No

 

SOUTHERNINSTITUTEOFTECHNICALEDUCATION,INC. TVLTRACK- COMPUTERHARDW TVLTRACKCOMPUTERHARDWARESER ARESERVICING VICINGNCII NCII

V.EVALUATION

Task1 :NameaTool

Directions:Namethetoolspresentedbelow.Writeyouranswersonthespaceprovidedbeforeeachtool.

1.

8.

2.

9.

3.

10.

4.

11.

 

SOUTHERNINSTITUTEOFTECHNICALEDUCATION,INC. TVLTRACK- COMPUTERHARDW TVLTRACKCOMPUTERHARDWARESER ARESERVICING VICINGNCII NCII

5.

12.

6.

13.

7.

14.

 

SOUTHERNINSTITUTEOFTECHNICALEDUCATION,INC. TVLTRACK- COMPUTERHARDW TVLTRACKCOMPUTERHARDWARESER ARESERVICING VICINGNCII NCII

Task2:: Performan Task2 Performancetest cetest

Directions:Usingthedifferent Directions :Usingthedifferent availabletoolsinthe availabletoolsinthelabor laborator atory,youwillsegregate y,youwillsegregate thetoolsaccor thetoolsaccordingtotheir  dingtotheir  classificationwhetheritisanESDtool,Handtool,cleaningtooloradiagnostictool.Youwillberatedaccording tothescoringrubricbelow: (Note:theteacherwillprovidethedifferenttools) ClassificationofTools ScoringRubrics

Criteria Score Numberoftoolsclassified: 20-22

10

15-19

8

10-14

6

5-9

4

1-4

2

V.Assignment WriteanexampleofEquipmentincomputerhardwareservicing.