Cov ntsiab lus ntawm PCB Multi-layer Board Customization Manufacturers los daws teeb meem Circuit Board Failure Methods [tags]
Sep 23, 2021
Rau ib tug tshiab tsim PCB multi-layer board, yuav muaj ib co teeb meem thaum lub sij hawm kev tshawb fawb. Thaum lub rooj tsav xwm Circuit Court muaj cov duab loj thiab ntau cov ntsiab lus soldering, raws li kev paub txog PCB ntau txheej board customization chaw tsim tshuaj paus, peb yuav npaj cov txheej txheem tsim nyog debugging rau koj siv, ua ntej ntawm tag nrho cov, peb yuav tsum tau xyuas cov tsos ntawm cov pawg thawj coj saib seb puas muaj teeb meem, xws li pom tseeb tawg, qhib thiab luv Circuit Court, thiab lwm yam, yog tias tsim nyog, peb tuaj yeem kuaj qhov tsis kam ntawm cov khoom siv hluav taws xob thiab cov xaim hauv av. Cov kauj ruam tom ntej yog solder cov khoom. Yog tias muaj qee qhov kev ywj pheej, thaum koj tsis muaj kev ntseeg siab kom ntseeg tau tias lawv tuaj yeem ua haujlwm tau zoo, nws yog qhov zoo tshaj plaws tsis txhob nruab lawv ib zaug, tab sis nruab lawv cais. Lub Circuit Court tuaj yeem ntsia tau ib zaug), kom nws yooj yim dua kom paub meej tias qhov teeb meem twg tshwm sim, kom tsis txhob paub txog qhov teeb meem thaum koj ntsib qhov tsis ua haujlwm. Koj tuaj yeem nruab lub tshuab hluav taws xob ua ntej, thiab tom qab ntawd txuas rau lub zog los xyuas seb qhov tso zis hluav taws xob ntawm lub zog hluav taws xob puas zoo li qub. Yog tias koj tsis ntseeg tias koj tuaj yeem dhau nws ntawm ib zaug ua ntej lub hwj chim, (txawm tias koj muaj kev ntseeg siab tag nrho, nws raug nquahu kom koj ntxiv lub fuse, tsuas yog nyob rau hauv rooj plaub), koj tuaj yeem siv cov khoom siv hluav taws xob kho tau nrog kev txwv tam sim no. muaj nuj nqi, ua ntej teem lub overcurrent tiv thaiv tam sim no, thiab ces maj mam nce nws, thiab saib xyuas cov input tam sim no, voltage, thiab output voltage. Yog tias tsis muaj qhov txawv txav thaum lub sijhawm hloov kho, thiab cov txiaj ntsig zoo li qub, lub zog hluav taws xob yog OK. Txwv tsis pub, tshem tawm cov khoom siv hluav taws xob, nrhiav qhov txhaum, thiab rov ua cov kauj ruam saum toj no kom txog thaum lub hwj chim mov zoo li qub.
PCB xeem tsis ua hauj lwm txoj kev
Peb txoj hauv kev rau PCB cov neeg tsim khoom lag luam los daws qhov teeb meem ntawm lub rooj tsav xwm tsis ua haujlwm: Ib qho, ntsuas qhov ntsuas hluav taws xob, thawj zaug paub meej tias qhov voltage ntawm txhua lub zog hluav taws xob tus pin yog qhov qub, thiab tom qab ntawd xyuas seb qhov sib txawv ntawm qhov voltages yog qhov qub, thiab muaj lwm cov ntsiab lus seb qhov ua hauj lwm voltage yog li qub, thiab lwm yam. Thib ob, lub teeb liab txoj kev txhaj tshuaj, ntxiv cov teeb liab qhov chaw rau lub input davhlau ya nyob twg, thiab ces ntsuas lub waveform ntawm txhua taw tes nyob rau hauv lem mus saib seb nws yog ib txwm mus nrhiav qhov txhaum point. Yog tias tsis muaj lus teb rau qib dhau los, tab sis muaj cov lus teb rau qib tom ntej, nws txhais tau tias qhov teeb meem nyob rau qib dhau los thiab yuav tsum tau kuaj xyuas. 3. Cov txheej txheem ntawm kev nrhiav cov ntsiab lus txhaum, xws li saib, mloog, hnov tsw, kov, thiab lwm yam "Saib" txhais tau tias saib seb puas muaj kev puas tsuaj rau cov khoom siv, xws li tawg, kub hnyiab, deformation, thiab lwm yam.: "Mloog. " txhais tau hais tias hnov txog lub suab ua haujlwm zoo li qub, piv txwv li, ib yam dab tsi uas yuav tsum tsis txhob nrov yog lub suab nrov, qhov chaw uas nws yuav tsum tsis txhob nrov lossis lub suab txawv txav, thiab lwm yam.: "tsim" yog los xyuas cov ntxhiab tsw txawv, xws li burnt tsw, capacitor electrolyte tsis hnov tsw, thiab lwm yam. Rau ib tug paub txog hluav taws xob tu neeg ua hauj lwm, lawv rhiab heev rau cov ntxhiab tsw: "kov" yog siv sim mus ntsuam xyuas seb qhov kub ntawm cov cuab yeej yog li qub, piv txwv li, nws yog ib yam nkaus thiab. kub los yog txias heev. Qee cov khoom siv hluav taws xob yuav ua kom sov thaum ua haujlwm. Yog tias nws txias rau qhov kov, nws tuaj yeem txiav txim siab tias nws tsis ua haujlwm.