Yuav ua li cas mus saib hauv lub tsev nyob rau hauv lub hwj chim ua hauj lwm zoo nyob rau hauv lub tsev

Tam sim no los yog yav tom ntej, tab sis txhua yam nyob rau hauv peb lub neej ib hnub tuaj mus rau qhov kawg, thiab tej zaum yuav puas tau dab tsi. Thiab kiag li mam li nco dheev. Yog li ntawd nws yog tsis li ntawd ib (los yog tsis) hnub peb contrived mus pib lub computer, mam li nco dheev hnov lub suab ntawm cov khiav cia txias. Heev txawv txawv thiab tsis kaj siab nov ntawm nqaij tawv. Yuav ua li cas yog qhov teeb meem? Yog hais tias koj ua tib zoo xav, lub deductive txoj kev nws yuav xaus lus tias yog tias qhov hluav taws xob kws tsis tig rau, uas txhais tau tias tsis muaj hwj chim yog txhab khoom mus rau nws. Nws yog ib zajlus kom? Los yog tej variant: tsis muaj tam sim no yog txhab khoom mus rau lub hwj huam mov, tog twg los nrog tib tam sim no block yog tsis tsuas nkag mus rau hauv lub system. Yuav ua li cas thiab yuav ua li cas ua tau? Yuav ua li cas mus saib lub hwj huam mov rau cov kev ua tau zoo?

Nws yog to taub hais tias lub aforesaid chav tsev yog lub luag hauj lwm rau kom ntseeg tau tias cov mov hwj chim mus rau lub computer. Yog hais tias nws yog cua tshuab los yog lwm yam faulty, koj yeej yuav tau txais ua hauj lwm thiab lwm yam nrog cov ntsiab ntawm "txuj lom." Yog li ntawd, ib tug zoo kawg lub luag hauj lwm yog tsim nyog rau txoj kev mus rau lub kev xaiv ntawm ib tug txhim khu kev qha thiab muaj zog "as" lub caij. Yuav ua li cas mus saib hauv lub system fais fab mov unit los ntawm koj tus kheej? Ob peb txoj kev. Ntawm no yog ib tug ntawm lawv, thiab ua koj xav tau cov nram qab no: sim los thaiv series kev twb kev txuas mus rau lub network, thaum uas siv cov feem ntau incandescent qhov muag txog li 40 watts. Yog li ntawd nws yuav raug txo mus rau ib tug tsawg kawg nkaus qhov yuav hais tias yuav muaj ib tug luv luv Circuit Court, nyob rau hauv uas cov ntaub ntawv lub teeb yuav taws nyob rau hauv tag nrho cov glow.

Yuav ua li cas mus saib hauv lub PC lub hwj chim mov tau li cas? Cov tom ntej no txoj kev yog siv ib tug voltmeter. Yuav kom qhov no kawg koj yuav tsum muaj xws li cov thaiv nyob rau hauv lub network thiab ntsuas lub voltage ntawm lub 9 motherboard socket hu. Kws txawj hu nws lub "standby lub hwj chim". Qhov tseeb tiag mas, cov voltage yuav tsum kwv yees li 5 volts. Yog hais tias nws raws li no parameter, nws txhais tau hais tias yog tsis muaj kev ntshai thiab bravely mus cuag lub tsev.

Tab sis qhov no mus saib nws yog tseem tsis tau tso tseg. Nws yog ib qho tseem ceeb kom paub tias yuav ua li cas mus saib hauv lub system fais fab mov unit thaum lub sij hawm ntawm nws tag nrho load. Rau lub hom phiaj no, koj yuav tau chaw uasi mus rau kev siv ntawm lub thiaj li hu ua pull-up resistors. Lawv cia txhais tau lub tsev muaj kev cia siab nrog sufficiently siab yuav qhov muaj tseeb. Tshwj xeeb pom zoo kom xaiv resistors uas nws lub hwj chim yog 20-25 watts. Lawv yog cov zoo tagnrho mus xyuas rau feem ntau blocks qauv uas muaj nyob rau hauv nruab nrab nqi qeb.

Yog li ntawd yuav ua li cas mus ntsuam xyuas computer fais fab mov unit siv cov pull-up resistors? Lawv yuav tsum tau txuas mus rau lub chav tsev thiab ces ntsuas lub load, yeej ib txwm hmoog rau cov kev cai uas yog siv tau thiab yog qhia nyob rau hauv cov ntaub ntawv ntawv ntawm lub tshuab. Yog hais tias qhov kev tshwm sim uas koj tau txais, lawv phim, nws txhais tau tias lub tsev yuav tsum kiag cia siab rau. Yog hais tias, txawm li cas los, cov nuj nqis siab dua cov teev nyob rau hauv cov ntaub ntawv ntawv, nws txhais tau tias lub tsev yuav ua tau tsis tau tsuas yog unreliable tab sis kuj txaus ntshai rau siv.

Tam sim no uas koj paub yuav ua li cas mus saib hauv lub system fais fab mov unit. Muaj lwm txoj kev uas yuav pab tau nyob rau hauv no qhov teeb meem. Disconnect tag nrho cov hwj chim los ntawm tus graphics card, motherboard, nyuaj tsav, thiab lwm yam (Koj yuav tau tawm lub DVD tsav, nws tsis yog ntshai kawg ntawm voltage hloov mus hloov los). Ntxiv nws yog tsim nyog los noj Plume ntsiab fais fab kom luv luv-Circuit Court motherboard thiab nws cov dub thiab ntsuab connectors siv ib tug dog dig ntawv clip (unfolded). Siv lub tester. Lub hwj chim muab coj mus cuag cov thawj network, thiab ces tig rau los ntawm ib tug mus. Thaum nws pib, lub dub xeem lead ntawm lub tester rau muab tso nyob rau hauv ib yam ntawm cov fais fab mov nyob ntawm tej yog dub thiab liab qho tso nyob rau hauv lub lwm yam, dawb lias pins. Tam sim no cov tsis uas yuav tshwm sim rau qhov kev tshuaj ntsuam ntawm koj tester, xa mus rau nram qab no cov nuj nqis (cov nuj nqis koj yuav tsum pom):

- txiv kab ntxwv - 3.3 V;

- dawb - 5V;

- liab - 5V;

- daj - 12b;

- liab (los yog ntshav) - 5V;

- xiav - 12V.

Yog hais tias koj cov ntaub ntawv rau tsawg kawg yog ib lo lus zoo lus los ntawm cov kev cai, nws txhais tau tias lub tsev muab yog siab los qis voltage, thiab yog li ntawd, yog faulty.