Yuav ua li cas xaiv lub computer fais fab mov nrog multimeter
Niaj hnub no, lub cim tshiab ntawm daim npav graphics, suab phaib, kho qhov muag drives, hard drives thiab lwm yam khoom siv tsis muaj zog npaum li kev siv hluav taws xob. Thaum koj sau koj lub hlwb nrog koj lub tshuab kev hlub, koj puas tau xav txog kev muab nws nrog lub siab muaj zog.
Muaj ntau cov ntawv qib siab ntawm kev txheeb xyuas cov khoom siv hluav taws xob hauv ntau cov ntawv xov xwm thiab cov ntawv xov xwm. Lawv tuaj yeem muab faib ua peb hom:
Ua tib zoo saib - saib seb lub zog hluav taws xob puas yog ua los ntawm cov khoom siv zoo, seb qhov kev ua haujlwm zoo, thiab seb qhov kev teeb tsa puas tsim nyog. Yuav kom ncaj ncees, qhov kev daws teeb meem no yog qhov nyuaj me ntsis. Ua ntej tshaj plaws, nws xav kom tus neeg siv yuav tsum muaj kev paub txog hluav taws xob txaus; Qhov thib ob, yog tias koj xav kom pom cov khoom siv hauv lub cev ntawm lub hwj chim, koj yuav tsum qhib lub hwj chim npog, uas yuav ua rau cov neeg ua lag luam tsis muaj kev lav phib xaub, uas yuav raug txiav tawm thaum lub foob tawg. Cov tub lag luam lub warranty txhais tau hais tias txawm tias muaj teeb meem nrog lub hwj huam mov, koj yuav tau DIY nws. Kuv xav tias muaj coob tus rookies zoo tib yam raug yuam ua prawns li no thaum lawv xav tau thiab tsis muaj kev pab.
Qhov thib ob kov - yog hais txog kev kov lub tshuab hluav taws xob kom pom tias cov cua tshuab tawm yog kub thiab lub hau npog kub tom qab tig rau lub sijhawm.
Peb tsis hnov tsw: tsw ntxhiab txawm tias lub hwj chim muab hluav taws kub tsis hnov tsw tom qab ua haujlwm ntev. Qhov kawg ob yog kev sib sau ua ke ntawm kev paub txog kev paub. Yuav ua li cas ib tug novice txiav txim yog hais tias nws tsis muaj kev txawj ntse?
Ntawm no, kuv pom zoo ib txoj hauv kev siv lub multimeter los txiav txim siab qhov zoo ntawm cov khoom siv hluav taws xob, uas yuav muab qee yam kev pab rau cov novices. Ua ntej tshaj plaws, nrhiav ib lub multimeter (zoo dua digital), thiab koj yuav tsum muaj peev xwm siv multimeter. Cov voltages muab los ntawm aTX fais fab mov feem ntau yog 3.3V, 5.0V, thiab 12.0V. 12.0V yog lub zog loj los tsav cov khoom siv kho vajtse. Qhov kev hloov pauv yuav pom tseeb tshaj plaws tom qab kev sib txuas ntau ntxiv, yog li tom qab txuas tag nrho cov khoom thauj hauv lub computer Ces xaiv cov khoom tso tawm dawb lub taub hau, ntxig cov xim dub coj mus rau hauv cov hlau dub interface, thiab ntxig cov hlau kuaj liab rau hauv cov hlau daj interface. (lub hom phiaj yog txhawm rau txheeb xyuas qhov hluav taws xob 12V). Tom qab txuas tag nrho cov plug connectors, koj tuaj yeem pib qhov kev xeem.
Tom qab pib, peb tuaj yeem pom tias cov ntaub ntawv multimeter hloov tas li thiab tsis ruaj khov kom txog thaum lub kaw lus pib tag nrho. Sau tus nqi voltage ntawm lub sijhawm no. Feem ntau nws yuav tsum nyob ib ncig ntawm 12V (txog 11.95V ~ 12.15V). Yog tias nws qis dhau, nws tsis tuaj yeem ua haujlwm ruaj khov mus ntev ntawm cov khoom loj thiab tsis muaj peev xwm nthuav dav. Yog tias nws siab dhau lawm, nws yuav ua rau lub cuab yeej cua sov thiab ua rau overheating. kev laus ntxov ntxov). Tom qab ntawd nias tus yuam sij reSET thiab cia lub tshuab rov pib dua. Lub sijhawm no, koj yuav tsum tau ua tib zoo saib xyuas cov lej hloov pauv ntawm multimeter. Tus nqi multimeter yuav ncav cuag qhov qis tshaj plaws thaum lub sij hawm lub hwj chim-on tus kheej-test. Nco ntsoov tus nqi voltage ntawm lub sijhawm no. Yog tias qhov sib txawv ntawm qhov hluav taws xob siab tshaj plaws thiab qis tshaj qhov hluav taws xob tsis loj heev (hauv 0.3V), qhov kev siv hluav taws xob no tau txais. Yog tias qhov sib txawv ntawm qhov voltage loj dhau, nws txhais tau hais tias cov khoom siv hluav taws xob muaj peev xwm tsis zoo thiab yuav tsum tsis txhob xaiv. Kuv tus kheej tau ntsib 300W fais fab mov nrog tus nqi siab tshaj ntawm 12.32V thiab qhov tsawg kawg nkaus tus nqi tsuas yog 11.73V. Nws nquag poob thaum siv.
Thaum kawg, soj ntsuam qhov xwm txheej hauv kev siv. Khiav ntau yam software thiab mloog suab paj nruag siv CD-ROM tsav los ua kom txhua qhov chaw ntawm lub tshuab ua haujlwm. Ua tib zoo saib xyuas qhov voltage ntawm lub sijhawm no thiab xaiv nws yog tias tsis muaj qhov hloov pauv tau pom tseeb.
