Pp Sua Chua MAin Board

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    GIO

    TRNHPH

    NCNG

    MYT

    NH

    Xincho:

    TrngLong

    Lttruycp:7

    Sd:125800

    Hnsdng

    (mm/dd/yy):5/31/2009

    TNGQUAN

    .

    CASE&NGUN

    MAIN

    _BOARD

    .

    VIX

    L-CPU

    BNH

    RAM

    .

    _

    HDD,

    CDROM

    T_

    BNHPXUT

    CARDM

    RNG

    LPRPM.T

    NH

    CIWINDOW98

    CIWIN2000,

    XP

    PARTIONMAGIC

    PhngphpsachaMainb

    oard

    Nidung:Phngphpkimtra

    vsachacchhngcaM

    ainboard,

    Sachamchiu

    khinngun,

    MchnpchoCPUvhthngChipset,

    MchtoxungClockvccmchkhc.

    KhihngMainb

    oardtutheomcnngnh

    msinhra

    nhnghint

    ngsau:

    1.

    Mykhngv

    oin,qutngunkhngquay.

    2.

    Mycvoin,qutngunquaynhngkhnglnmnhnh,

    khngcmthanhbosc

    .

    3.

    MykhingbResetlikhivonmnhn

    hWinXPhocci

    tWinXPb

    boli.

    4.

    Mttrongcc

    cngchut,bnphmhoccng

    USBbmttc

    dng.

    Bnh1v3trn

    ccpbitrc,phnnychngti

    scpnph

    ngphpkimtrasachacc

    bnh2v4trn.

    Bnh2:Mycvoin,qutngunquaynhngkhngln

    mnhnh,khngcmt

    hanhbosc.

    KimtraktlunlMainbordhng.

    Dngmtbngunttthvloitrc

    nguynnhndo

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    TINCHGHOST

    LAN-INTERNET

    DowloadG.Trnh

    PHNS/CHA

    ngun.

    CthgnCP

    UsangmtMainboardangch

    yttloitrkh

    nnghngCP

    U.

    ChgnCPUvoMainboard,

    kimtraloabos

    cvchcchnl

    tt,cpngunvoMainboardvbtcngt

    cP.O

    N

    KhingunttvCPUttgntrnMainboard,b

    tcngtcm

    khngctnh

    iugloabosclMainboa

    rdkhnghotng

    Nguynnhnlm

    Mainboardkhnghotng

    Chpmttron

    gccngtitiuth

    HngmchdaongtoxungCLKtrnMainboard

    HngmchnpngunchoCPU

    HngNorthBridgehocSourthBridge

    Liphnmm

    trongROMBIOS

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    M

    ainboardv

    c

    c

    linhkin

    linqua

    n

    ns

    ho

    tngca

    Ma

    inboard

    Ccbckimtra

    Thottcc

    clinhkinrakhiMainboard

    -GnCardTestMainvokhePCI

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    -Cpngunc

    hoMainboard

    -Mngun(dngtvtuchpchnPWR-

    chncngtcm

    ngunchoqutngunquay)

    =>Quanstd

    ynLedtrnMainboard

    Chthch:

    -Ccn+5V,

    3,3

    V,+12V,-12Vsngngha

    lcccinp

    +5V,

    3,3

    V,+

    12V,-12V

    hayccngp

    bnhthng

    -nCLKsnglICdaongtoxungCLKtr

    nMainboardtt

    -nRSTsng(sautt)chobitMainboard

    toxungReset

    khing

    CPU

    .

    -nOSCs

    ngchobitCPUhotng

    -nBIOSs

    ngchobitCPUangtruycpvoBIOS.

    Khichagn

    CPUvoMainboardthnOSC

    vnBIOSs

    khngsngcnlittcccnkhcuph

    tsnglMainboard

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    bnhthng(

    ringnRSTsngritt)

    KhignCPUvo,nuttcccnLedtrn

    usnglc

    Mainboardv

    CPUhotng.

    Ma

    inboardv

    CPUho

    tng

    thttcnL

    ed

    us

    ng

    Mtstrngh

    phhng

    Mainboardbchpmttrongccngi

    np

    M

    ainboard

    bc

    hpngngu

    n5

    V

    biu

    hin

    ln

    5Vtt

    M

    ainboard

    bc

    hpngngu

    n3,3V

    biu

    hin

    ln

    3,3

    Vtt

    M

    ainboard

    bc

    hpngngu

    n12V

    biu

    hin

    ln

    12Vtt

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    Mchdaon

    gtoxungCLKtrnMainboardkhnghotng

    Mc

    hto

    xung

    CLK(xung

    Cloc

    k)khng

    ho

    tng

    biu

    hin

    ln

    CLKkhngs

    ng

    X

    em

    chititvmchtoxungCLK

    Kimtramch

    toxungCLK

    -okimtra

    Vcc3,3

    VcpchoICdaongt

    odung

    -RabngncramchinkhuvcICdaongri

    sykh

    -ThaythICdaongtoxungCLKtMainboardkhc

    ---------------

    Ccng

    inputt,ctnhiuxu

    ngCLKnhngkhi

    gnCPUvo

    MainboardkhngsngnOS

    C

    Khig

    nC

    PUv

    on

    hngn

    OSCv

    nBIOSvn

    khngs

    ng,

    hin

    tng

    trnc

    hng

    tCPUch

    a

    ho

    tng

    Vitrngh

    ptrnbncnkimtramchnpcpnguncho

    CPU

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  • 8/22/2019 Pp Sua Chua MAin Board

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    Ccn

    Mos

    fet(trongv

    ngxanh

    )

    iu

    khinc

    pngu

    nc

    ho

    CPU

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    Bacp

    Mos

    fet(trong

    xan

    h)

    iu

    khinc

    pngu

    nc

    ho

    CPU

    ICt

    odaongiu

    khinc

    cnM

    os

    fet

    c

    pngu

    nc

    ho

    CPU

    Xem

    s

    nguynlmchcpngunchoCPU

    Kimtram

    chcpngunchoCPUnhsau:

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    Khichagn

    CPUthotichnracpngun

    choCPU(otrn

    cccundyL1,

    L2,

    L3strn)phil0

    V

    KhignCPU(tt)vothchncpnguncho

    CPUrangvi

    inpghitr

    nCPU

    =>Thomn

    haiiukhintrnlmchiuk

    hinngunchoCPU

    hotngtt.

    Cctrnghp

    saulhngmchiukhinngunchoCPU

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    ChalpCPUvoMainboardnhngci

    npratrncccun

    dyL1,

    L2,L3

    .

    KhilpCPUv

    othinpracpchoCPUsaisoviinpghi

    trnthnCPU

    .

    =>CctrnghptrnldohngmttrongccnMosfethoc

    hngICtodaong,

    Bncnkimtratheohngnhsau:

    =>ongun

    cpchoIC,

    ICccpngunl

    5V(MainPen4)

    hoccphain

    gunl5Vv12V(MainPen3).

    Page10of

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    IC

    daongiu

    khinngu

    ncp

    cho

    CPU

    trn

    Ma

    inboard

    Pen

    tium

    4

    Kimtracc

    nMosfetiukhinngun

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    n

    Mos

    fetiu

    khinngu

    n

    kimtrabncngmihnchnGvchnSrasauokim

    tra.

    SauylmtskinthcvnMosfet

    Mosfet(Transistortrng)-Cutovphn

    gphp

    kimtra

    HnhdngMosfet

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    1.MosfetlTransistortrngccutokhcviTransistorthng

    thng,chn

    gcnhycaohnvcs

    dngtronghuht

    ccbngun

    Monitor,mchiukhinngun

    trnMainboard

    2.Cuto.

    Mos

    fet

    Trans

    istor

    Mosfetc3ccl

    G(cccng),

    D(ccthot),S(ccngun)

    vnguynlh

    otngchngtngtvi3ccB,

    C,

    Eca

    Transistorthngthng,nhngvcutoch

    ngkhcvin

    BCE.

    +Ccngun(S)vccthot(D)cnivihaichtbndnN

    ttrnnnctnhcchin,

    khonggiahai

    cclvngngho

    intchtdo

    .

    +Cccng(G)ctbntrnkhongtrn

    ggiahaiccNv

    cclybngmtlpcchinlSiO2

    ,ccGcchinhonton

    viccDvc

    cS.

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    +Khichomt

    inpchnhlchvohaiccD

    vSthkhngc

    dnginchyquanhngkhitaamtinpdngvoccG,

    inpnysinhrahiungtrngtrongkhongtrnggiahailp

    bndnN,v

    ditcdngcattrngthxuthindngin

    chyquatccDsangccS.

    inptv

    ochnGkhngtoradngin

    GSmchtora

    hiungtr

    ngtrongMosfetvvymttnhi

    uccngrt

    yucngcthlmchoMosfetmrtmnh.

    Dnginch

    yquahaiccD-Schphthuc

    voinpchnG

    mkhngph

    thucvocngcatnhiu

    =>VvyMos

    fetccoillinhkincnhyrtcaovchng

    csdngtrongccbngunMonitorvccbngunca

    nhiuthitbintcaocpngynay.

    3.Thnghimv

    shotngcaMosfet.

    Thnghimv

    s

    ho

    tngca

    Mos

    fet

    KhiK1ngintchnpvotC1lmcho

    nMosfetdn,

    khiK1

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    m

    ,intch

    trntC1vntntidokhngcdngGSdon

    Mosfetvndu

    ytrsdninchonkhicng

    tcK2ng,in

    ptrntC1thot=0Vthnmitt.

    4.KhiucaM

    osfet

    MosfetthngckhiulK...,

    2SK...,

    IRF...

    Thd

    K324

    0,

    IRF630vv..

    trongnKc

    cngsutlnhn

    vthngs

    dngtrongmchngun,ccn

    IRFccngsutnh

    hnnnsdngtrongmchcngtc,mchReguvtsdng

    trongmchng

    un.

    Khiuca

    Mos

    fet

    Quynhvcccc:

    -CcG-b

    ntri

    -CcD-g

    ia

    -CcS-bnphi.

    5.okimtraM

    osfet

    Chunb:

    nghthangx1K

    NulMosfe

    tcnttthktquosnhsau:

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  • 8/22/2019 Pp Sua Chua MAin Board

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    ogiaGv

    Schaichiukimkhngln

    ogiaGv

    Dchaichiukimkhngln

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    DngTvtch

    pGvoDthotintrncc

    G

    SaukhiGthotinccGthogiaDv

    Scmtchiukim

    khngln(ch

    iuqueenvoDquevoSkimkhngln)

    -----------------------------------------------------------

    Cctrngh

    psaulMosfetbhng

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    ogiaGv

    Skimln=>lchpGS

    ogiaGv

    DkimlnlchpGD

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    HocmcdthotinchnG

    ogiaDvSkimvnlnsaukhithotinccGlbchp

    DS

    ----------------------------------------------------------

    nhminhho

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  • 8/22/2019 Pp Sua Chua MAin Board

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    Trnghp

    kimtrainpcpchoCPUbnhthng,

    MainboardcdaongnhngvnkhngsngccnOSC

    vBIOS

    =>Trngh

    pnycthdoChipsetbli

    =>

    Dngmy

    hnkhkhliChipsetnam

    KimtrathyMosfethng

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    Kh

    lic

    hipse

    tnam

    b

    ngm

    y

    hn

    kh

    CPUhot

    ngnhngkhngtruycpBIOS

    Biuhin:nBIOStrnCardTestMainboardkhngsng

    =>Trngh

    ptrnthngthngdoliBIOS

    =>ThayBIOS

    lytMainboardcngchnglo

    isangth

    Lu:NuB

    IOS(cngs)nhnglytMainboardkhclois

    khngchycvphnmmbntrongBIOS

    chngkhcnhau.

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    Bnh4:Mttron

    gcccngchut,bnphmho

    ccngUSBb

    mttc

    dng.

    Nguynnhnm

    ttcdngchut,bnphm.

    HngICgiaotipchut,bnphm.

    nhn

    bitICg

    iao

    ti

    pbnc

    thdngc

    tc

    cc

    ng

    chutbn

    phmv(s

    dng

    thangx

    1o

    thngmc

    h)

    Nguynnhnm

    ttcdngcngUSB

    VicngUSB

    khnghotngbncnhnliChipsetnam(dng

    myhnkhli)vtnhiuaracngnyclytChipset

    nam.

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    Trangch

    C

    ng

    USBly

    tn

    hiu

    tChipse

    tnamv

    rangu

    n5V

    ly

    tngu

    n5Vc

    hnhca

    Ma

    inboard

    DngcsachaMy

    tnh

    SachaccbnhcaM

    ytnh

    PhngphpsachaMainboard

    Bac

    hKhoaElectronic

    -Mobil:0912.4

    21.9

    59

    -Email:Daotaotructu

    [email protected]

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