Kev daws teeb meem ntawm plaub qhov kev txhaj tshuaj molding tshuab

Txhawm rau kho qhov tsis paub txog kev txhaj tshuaj molding tshuab Circuit Court board yam tsis muaj daim duab schematic, lub npe hu ua "kev paub" yav dhau los yog qhov nyuaj rau kev ua tiav. Txawm hais tias cov neeg uas muaj kev txawj ntse kho vajtse muaj zog muaj kev ntseeg siab hauv kev kho, yog tias txoj kev tsis raug, nws tseem yuav ua haujlwm nrog ob zaug qhov tshwm sim. Yog li peb tuaj yeem ua li cas txhawm rau txhim kho kev txij nkawm? Raws li cov kev paub dhau los ntev hauv kev saib xyuas cov tshuab txhaj tshuaj molding, cov kauj ruam hauv qab no yuav tsum tau ua raws li kev coj ua.
Txoj Kev 1: Saib ua ntej thiab tom qab ntawd ntsuas
Siv cov cuab yeej: multimeter, magnifying iav
Thaum tuav lub rooj tsavxwm Circuit Court ntawm lub tshuab txhaj tshuaj molding yuav tsum tau kho, tus cwj pwm zoo yog kom pom qhov muag pom ua ntej, thiab yog tias tsim nyog, siv lub iav tsom iav kom pom dab tsi?
Feem ntau saib:
1. Txawm tias muaj kev cuam tshuam;
2. Cov khoom sib cais xws li resistors, electrolytic capacitors, inductors, diodes, triodes, thiab lwm yam yuav raug txiav;
3. Txawm hais tias qhov sib txuas ntawm cov ntawv luam tawm ntawm lub rooj tsavxwm ntawm lub tshuab txhaj tshuaj molding yog tawg lossis daig;
4. Puas muaj leej twg kho nws? Yam khoom twg tau txav mus los? Txawm hais tias muaj kev ua yuam kev hauv kev ua haujlwm xws li faulty soldering, ploj lawm soldering thiab rov qab ntxig;
Tom qab paub meej tias cov khoom kho tsis pub dawb ntawm cov xwm txheej saum toj no, ua ntej siv lub tshuab ntsuas ntsuas los ntsuas qhov ntsuas tus nqi ntawm cov khoom siv hluav taws xob thiab hauv av ntawm kev txhaj tshuaj molding tshuab Circuit Board. Yog tias tus nqi tiv thaiv tsawg dhau, nws tsuas yog ob peb lossis ntau dua Ohms, uas txhais tau hais tias muaj cov khoom siv ntawm lub tshuab txhaj tshuaj molding tshuab Circuit Court board uas tau tawg lossis ib feem tawg, thiab kev ntsuas yuav tsum tau ua kom pom cov khoom tawg. Txoj kev tshwj xeeb yog muab lub zog rau lub rooj tsav xwm hauv Circuit Court kom kho, thiab kov qhov kub ntawm txhua yam ntawm lub rooj tsavxwm ntawm lub tshuab txhaj tshuaj molding nrog koj txhais tes. Lub tes kub yuav yog tus yuam sij tseem ceeb. Yog hais tias tus nqi kuj yog ib txwm, siv ib tug multimeter los ntsuas qhov tsis kam, diode, triode, teb nyhuv transistor, dial hloov thiab lwm yam ntsug Cheebtsam ntawm lub rooj tsavxwm. Lub hom phiaj yog ua ntej kom ntseeg tau tias cov khoom ntsuas tau zoo li qub. Peb qhov laj thawj yog qhov teeb meem uas tuaj yeem daws tau nrog lub multimeter yuav tsum tsis txhob nyuaj;
Txoj Kev 2: thawj sab nraud ces sab hauv
Tool: Circuit Court txij nkawm ntsuas ntsuas
Yog tias qhov xwm txheej tso cai, nws yog qhov zoo dua los nrhiav ib lub rooj tsavxwm zoo ib yam li lub rooj tsavxwm kho raws li kev siv, thiab tom qab ntawd siv dual bar VI nkhaus scanning muaj nuj nqi ua ke los ua qhov kev sib piv zoo thiab tsis zoo ntawm ob lub rooj tsavxwm. Qhov kev sib piv thawj zaug tuaj yeem pib los ntawm qhov chaw nres nkoj, thiab tom qab ntawd los ntawm sab nraud mus rau sab hauv, tshwj xeeb tshaj yog qhov kev sib piv ntawm lub peev xwm, uas tuaj yeem ua rau muaj qhov tsis xws luag uas nws tsis yooj yim rau kev txheeb xyuas seb lub multimeter puas muaj dej xau online.
Txoj Kev 3: yooj yim ua ntej thiab nyuaj tom qab
Cov cuab yeej siv: Circuit Court txij nkawm ntsuas ntsuas, hluav taws xob soldering hlau, cim cwj mem
Txhawm rau txhim kho cov txiaj ntsig kev xeem, ua ntej kev sim online ua haujlwm ntawm lub rooj tsavxwm ntawm lub tshuab txhaj tshuaj molding, qee qhov kev kho yuav tsum tau ua rau lub rooj tsavxwm kho kom txo tau qhov tsis zoo ntawm ntau yam cuam tshuam ntawm cov txheej txheem xeem. Cov kev ntsuas tshwj xeeb yog:
1. Kev npaj ua ntej kuaj
Short-circuit siv lead ua oscillator thiab weld ib ceg ntawm lub loj electrolytic capacitor qhib nws, vim hais tias lub charger thiab tawm ntawm lub capacitor tuaj yeem ua rau muaj kev cuam tshuam.
2. Ntsuas lub cuab yeej nrog txoj kev cais tawm
Thaum lub sij hawm sim online lossis kev sib piv ntawm cov khoom siv, rau cov khoom siv uas tau xeem dhau qhov kev xeem (lossis kuj yog ib txwm muaj), thov ncaj qha lees paub qhov kev xeem ntsuas rau kev kaw; Yog tias qhov kev xeem tsis ua tiav (lossis tsis kam lees), koj tuaj yeem sim dua. Yog tias koj tseem ua tsis tiav, koj tuaj yeem lees paub qhov kev xeem tau, thiab tom qab ntawd txuas ntxiv qhov kev xeem kom txog thaum cov khoom siv ntawm lub rooj tsavxwm raug kuaj (lossis muab piv), thiab rov qab mus rau cov khoom siv uas ua tsis tau (lossis tsis kam lees).
Rau cov khoom siv uas tsis dhau qhov kev xeem ua haujlwm hauv online, qhov ntsuas kuj tseem muab cov txheej txheem ua haujlwm tsis raug cai tab sis siv tau. Vim hais tias lub hwj chim ntawm cov cuab yeej siv rau lub rooj tsav xwm Circuit Court ntawm lub tshuab txhaj tshuaj molding tuaj yeem siv rau cov khoom siv hluav taws xob sib txuas thiab hauv av ntawm cov cuab yeej los ntawm kev sim clamp. Yog hais tias lub hwj huam mov tus pin ntawm lub cuab yeej raug txiav, lub cuab yeej yuav raug cais tawm ntawm lub hwj huam mov ntawm lub rooj tsav xwm Circuit Court ntawm lub tshuab txhaj tshuaj molding. Lub sijhawm no, kev ntsuas kev ua haujlwm hauv online ntawm lub cuab yeej yuav ua tiav, Vim tias lwm yam khoom siv ntawm lub rooj tsavxwm Circuit Court ntawm lub tshuab txhaj tshuaj molding yuav tsis cuam tshuam, qhov kev sim tiag tiag yog sib npaug rau "quasi offline", thiab tus nqi raug yuav yuav tau txhim kho zoo heev.
3. Siv ASA-VI nkhaus scanning test los sib piv thiab sim cov cuab yeej tsis them los ntawm lub tsev qiv ntawv xeem
Raws li ASA-VI ntse nkhaus scanning thev naus laus zis tuaj yeem siv rau qhov kev sib piv ntawm ib qho khoom siv, tsuav yog qhov ntsuas clamp tuaj yeem clamp lub cuab yeej, thiab muaj cov phaj siv, los ntawm kev sib piv, nws kuj muaj qhov muaj peev xwm nrhiav tau qhov ua txhaum. lub cuab yeej. Qhov kev ua haujlwm no ua rau qhov tsis txaus uas qhov kev sim ua haujlwm hauv online ntawm lub cuab yeej yog nyob rau hauv lub tsev qiv ntawv xeem, thiab nthuav dav qhov kev tshawb nrhiav ntau yam ntawm cov cuab yeej rau lub Circuit Court board txhaum ntawm lub tshuab txhaj tshuaj molding.
Nyob rau hauv kev muaj tiag, nws yog feem ntau tsis yooj yim sua kom nrhiav tau ib tug zoo board rau siv, thiab tsis muaj symmetry nyob rau hauv lub Circuit Court qauv ntawm lub rooj tsavxwm yuav tsum tau kho. Hauv qhov no, ASA-VI nkhaus scanning kev sib piv kev xeem ua haujlwm tsis ua haujlwm, thaum qhov kev xeem ua haujlwm hauv online tsis tuaj yeem ua tiav qhov kev xeem ntawm txhua yam ntawm lub rooj tsavxwm Circuit Court ntawm lub tshuab txhaj tshuaj molding vim tsis tiav cov tsev qiv ntawv xeem, thiab txhaj tshuaj molding. tshuab Circuit Board tseem tsis tuaj yeem kho tau, Qhov no yog qhov kev txwv ntawm cov cuab yeej siv hluav taws xob hauv online, zoo li tsis muaj kev kho rau txhua yam kab mob.
Txoj Kev 4: static ua ntej dynamic
Vim tias cov cuab yeej siv hluav taws xob hauv online tsuas tuaj yeem ua qhov kev sim online thiab cov yam ntxwv zoo li qub ntawm cov khoom hauv Circuit Board ntawm lub tshuab txhaj tshuaj molding tam sim no, thiab seb nws puas kho tag nrho yuav tsum tau kuaj thiab tshuaj xyuas los ntawm tag nrho lub tshuab. Yog li ntawd, nws yog qhov zoo tshaj plaws los xyuas seb lub hwj chim ntawm cov khoom puas raug muab nkag rau hauv Circuit Court board ntawm lub tshuab txhaj tshuaj molding raws li qhov yuav tsum tau ua ua ntej kev tshuaj xyuas.