Ib qho ntawm cov teeb meem feem ntau ntawm motherboard malfunctions yog tawg capacitors. Hnub no peb yuav qhia koj seb yuav hloov lawv li cas kom raug.
Kev Npaj Ua Si
Thawj qhov uas yuav tsum nco ntsoov yog kev hloov pauv ntawm tus txheej txheem yog kev hloov pauv hnyav, yuav luag phais mob, uas yuav xav tau cov txuj ci tsim nyog thiab kev paub dhau los. Yog tias koj tsis lees paub txog koj lub peev xwm, ces nws yog qhov zoo dua rau kev tso siab hloov mus rau tus kws tshaj lij.
Yog tias koj muaj cov kev paub tsim nyog, nco ntsoov tias ntxiv rau nws koj muaj cov khoom lag luam tsim nyog.
Hloov Cov Peev Xwm
Lub ntsiab tseem ceeb tshaj plaws. Cov khoom sib txawv no sib txawv ntawm lawv tus kheej hauv ob qho tseem ceeb: voltage thiab capacitance. Qhov hluav taws xob yog qhov khiav hauj lwm voltage ntawm ib qho khoom, muaj peev xwm yog tus nqi uas tus tsub roj hluav taws xob muaj. Yog li no, thaum xaiv cov khoom siv tshiab, nco ntsoov tias lawv qhov hluav taws xob muaj sib npaug los yog siab dua qub dua li qub (tab sis tsis muaj qhov tsawg dua!), Thiab lub peev xwm sib raug rau cov tsis tiav.
Soldering hlau
Txoj kev ua no yuav tsum muaj cov hlau soldering nrog lub zog ua haujlwm ntev txog 40 watts nrog lub hau nyias. Koj tuaj yeem siv cov chaw nres tsheb soldering nrog kev muaj peev xwm kho lub zog. Tsis tas li ntawd, nco ntsoov yuav khoom haum rau lub cev hlau.
Hlau nqaj lossis daim hlau
Ib txoj hlua xaws los yog ib daim ntawm cov hlau tsis sib xyaw hlau yuav xav tau kom hle tawm thiab nthuav lub qhov rau ntawm lub rooj tsavxwm rau txhais ceg ntawm cov capacitors. Nws yog qhov tsis tsim nyog siv cov khoom nyias los ntawm lwm cov hlau, vim tias lawv tuaj yeem nqa los ntawm solder, uas yuav tsim kev nyuaj ntxiv.
Tom qab paub tseeb tias cov ntawv pov thawj ua tau raws li qhov xav tau, koj tuaj yeem npaj ncaj qha mus rau kev hloov txheej txheem.
Hloov lub zog tsis siv neeg lub zog
Ceeb Toom! Ntxiv kev ua koj coj ntawm koj tus kheej kev phom sij thiab kev pheej hmoo! Peb tsis ris lub luag haujlwm ntawm kev puas tsuaj rau lub rooj tsavxwm!
Cov txheej txheem no tshwm sim hauv peb qib: evaporating qub capacitors, npaj ib qho chaw, txhim kho cov ntsiab lus tshiab. Cia peb xav txog txhua yam nyob rau hauv kev txiav txim.
Theem 1: Haus
Txhawm rau kom tsis txhob ua haujlwm tsis zoo, nws raug nquahu kom koj tshem lub CMOS roj teeb ua ntej pib kev siv dag zog. Cov txheej txheem yog muaj raws li hauv qab no.
- Pom qhov chaw ntawm lub peev xwm tsis ua haujlwm ntawm sab laug ntawm pawg thawj coj. Nov yog lub sijhawm uas nyuaj dua, yog li yuav tsum tau ceev faj kawg nkaus.
- Muaj pom qhov sai, thov hloov flux rau qhov chaw no, thiab kub ib qho ntawm ob txhais ceg ntawm lub capacitor nrog cov hlau soldering, ua tib zoo nias ntawm qhov sib txuam ntawm lub ntsiab. Tom qab tus muag muag yaj tag lawm, txhais ceg yog tso tawm.
Ceevfaj! Lub sijhawm siv cua sov thiab siv zog ntev dhau lub sijhawm ua qhov no tuaj yeem ua rau lub rooj tsavxwm puas!
- Rov ua cov kauj ruam no rau tus ceg thib ob thiab ua zoo saib xyuas lub peev txheej, kom paub tseeb tias qhov kub kub tsis mus rau ntawm qhov system board.
Yog tias muaj ntau lub capacitors, rov ua qhov txheej txheem saum toj no rau txhua tus. Nrog rub lawv tawm, mus rau theem tom ntej.
Theem 2: Npaj lub rooj zaum
Qhov no yog qhov tseem ceeb ntawm cov txheej txheem: nws nyob ntawm cov kev ua tau zoo seb nws puas yuav ua tau los nruab ib lub zog tshiab, yog li yuav tsum ua tib zoo saib xyuas. Feem ntau, thaum hle cov ntsiab, tus ham nkag rau hauv lub qhov rau ob txhais ceg thiab txhaws nws. Txhawm rau ntxuav thaj chaw, siv ib rab koob lossis ib txheej ntawm cov hlau raws li hauv qab no.
- Los ntawm sab hauv, ntxig rau qhov kawg ntawm cov cuab yeej mus rau hauv lub qhov, thiab los ntawm sab nraud, ua tib zoo ua kom sov qhov chaw nrog hlau soldering.
- Huv thiab nthuav dav lub qhov nrog maj mam tig.
- Yog hais tias lub qhov rau ntawm ko taw tsis tau txhaws nrog solder, tsuas yog ua tib zoo ntug nws nrog rab koob lossis xaim.
- Ntxuav lub capacitor lub rooj zaum los ntawm cov muag khoom ntau heev - qhov no yuav tiv thaiv kev sib tsoo ntawm qhov tsis pom cov cwj pwm kev coj ua uas tuaj yeem ua rau kev puas tsuaj.
Tom qab ua kom paub tseeb tias pawg thawj coj tau npaj, koj tuaj yeem mus rau theem kawg.
Theem 3: Txhim Kho Cov Peev Xwm Tshiab
Raws li kev xyaum qhia, feem ntau qhov yuam kev tau ua meej nyob ntawm theem ntawm no. Yog li ntawd, yog tias cov kauj ruam dhau los tau dhau los ua rau koj nkees, peb pom zoo kom koj ncua, thiab tsuas yog tom qab ntawd mus rau qhov kawg ntawm tus txheej txheem.
- Ua ntej nruab cov pib tshiab hauv lub rooj tsavxwm, lawv yuav tsum tau npaj kom txhij. Yog tias koj siv qhov kev xaiv thib ob, ntxuav ob txhais ceg los ntawm qub qub thiab ua tib zoo ua kom sov nrog cov hlau yaj yeeb. Rau cov capacitors tshiab, nws txaus los kho lawv nrog rosin.
- Ntxig lub capacitor rau hauv lub rooj zaum. Nco ntsoov tias nws ob txhais ceg haum rau hauv qhov.
- Tsho ob txhais ceg nrog flux thiab ua tib zoo solder lawv rau pawg thawj coj, coj tag nrho cov kev ceev faj.
Ceevfaj! Yog tias koj thim rov qab qhov polarity (muag taw rau qhov zoo sib txuas mus rau lub qhov tsis zoo), lub capacitor yuav tawg, ua rau lub rooj tsav xwm hauv Circuit Court, lossis ua rau hluav taws kub!
Tom qab cov txheej txheem, cia tus ham ua kom txias thiab xyuas cov khoom ntawm koj kev ua haujlwm. Yog tias koj ua raws li cov lus qhia saum toj no raws nraim, yuav tsum tsis txhob muaj teeb meem.
Lwm txoj haujlwm los hloov
Qee qhov xwm txheej, yuav kom tsis txhob muaj cov cua kub ntau dhau ntawm lub rooj tsavxwm, koj tuaj yeem ua yam tsis muaj soldering qhov yuam kev ntawm tus lej. Qhov qauv no yog nyaum dua, tab sis tsim nyog rau cov neeg siv tsis lees paub hauv lawv lub peev xwm.
- Hloov chaw rau soldering lub caij, nws yuav tsum tau ua tib zoo tawg ntawm ob txhais ceg. Txhawm rau ua qhov no, sim ua viav vias ib qho tsis xws luag nyob rau hauv txhua qhov kev qhia thiab, nrog ceev faj kom tawg, tawg thawj zaug los ntawm thawj kev sib cuag, thiab tom qab ntawd los ntawm zaum ob. Yog tias nyob rau hauv tus txheej txheem ib qho ntawm ob txhais ceg tawm ntawm qhov chaw ntawm lub rooj tsavxwm, nws tuaj yeem hloov nrog ib daim tooj liab hlau.
- Ua tib zoo tshem tawm cov ceg sab saum toj ntawm cov ceg seem uas muaj cov cim ntawm kev txuas rau lub capacitor.
- Npaj cov ceg ntawm lub zog tshiab li hauv qib 3 ntawm theem kawg ntawm tus qauv tseem ceeb thiab ua rau lawv mus rau qhov seem ntawm tus ceg ntawm tus qub. Nov yuav tsum yog daim duab.
Lub ces kaum capacitor tuaj yeem maj mam khoov mus rau ib qho chaw ntsug.
Tus ntawd yog txhua yam. Thaum kawg, peb xav hais qhia rau koj ib zaug ntxiv - yog tias koj xav tias koj tsis tuaj yeem ua tus txheej txheem, nws zoo dua rau kev tso siab rau tus tswv!
