Yuav txheeb xyuas qhov luv Circuit Court hauv PCB thaum tsim PCB, koj tuaj yeem ua cov kauj ruam tseem ceeb hauv qab no los tshuaj xyuas qhov luv hauv PCB: 1. 2. Kuaj qhov luv Circuit Court ntawm lub rooj tsav xwm; 3. Nrhiav cov khoom tsis raug ntawm PCB; 4. Ntsuam xyuas PCB kev puas tsuaj.

Kauj Ruam 1: Yuav ua li cas thiaj pom luv Circuit Court hauv PCB

Pom kev qhov

Thawj kauj ruam yog ua tib zoo saib tag nrho saum npoo ntawm PCB. Yog tias yog, siv lub iav tsom iav lossis lub tshuab tsom iav uas tsis muaj zog. Saib rau cov xaum xaum ntawm cov pawm los yog cov hlua txuas. Ib qho kab nrib pleb los yog me ntsis hauv cov laug yuav tsum raug sau tseg. Txheeb xyuas txhua qhov dhau los. Yog tias tsis tau plated los ntawm qhov tau teev tseg, xyuas kom tseeb tias qhov no yog rooj plaub ntawm lub rooj tsavxwm. Plated tsis zoo los ntawm qhov tuaj yeem ua rau luv Circuit Court ntawm txheej thiab ua txhua yam koj tau grounded, VCC lossis ob leeg khi ua ke. Yog tias qhov hluav taws xob luv luv yog qhov tsis zoo tiag tiag thiab ua rau cov khoom tiv thaiv mus rau qhov kub thiab txias, koj yuav pom qhov kub hnyiab ntawm daim ntawv luam tawm Circuit Board. Tej zaum lawv yuav me me, tab sis tig xim av tsis txhob siv cov dej ntsuab ib txwm muaj. Yog tias koj muaj ntau lub rooj tsavxwm, PCB kub hnyiab tuaj yeem pab koj nqaim qhov chaw tshwj xeeb yam tsis tas yuav muaj lub zog rau lwm lub rooj tsavxwm, kom tsis txhob txi ntau yam kev tshawb nrhiav. Hmoov tsis zoo, tsis muaj qhov kub hnyiab ntawm peb lub rooj sib tham hauv Circuit Court nws tus kheej, tsuas yog cov ntiv tes tsis zoo los tshuaj xyuas seb puas yog INTEGRATED Circuit tau ua kom sov dhau. Qee qhov luv Circuit Court yuav tshwm sim sab hauv lub rooj tsavxwm thiab yuav tsis tsim cov ntsiab lus sib txuas. Qhov no kuj txhais tau tias lawv tsis nyiam mloog ntawm txheej txheej. Txij ntawm no mus, koj yuav xav tau lwm txoj hauv kev txhawm rau txheeb xyuas cov luv luv hauv PCB.

Infrared duab

Kev siv lub ntsuas hluav taws xob duab hluav taws xob tuaj yeem pab koj nrhiav thaj chaw uas tsim hluav taws kub ntau. Yog tias cov khoom tivthaiv tsis pom txav deb ntawm qhov chaw kub, PCB luv Circuit Court yuav tshwm sim txawm tias nws tshwm sim nruab nrab ntawm cov txheej sab hauv. Cov kab hluav taws xob luv luv feem ntau muaj kev tiv thaiv siab dua li ib txwm thaiv lossis txuas cov khoom sib txuas vim tias nws tsis muaj txiaj ntsig ntawm kev ua kom zoo dua qub hauv kev tsim (tshwj tsis yog tias koj xav tsis quav ntsej txoj cai tshawb xyuas). Qhov kev tiv thaiv no, nrog rau lub ntuj siab tam sim no tsim los ntawm kev sib txuas ncaj qha ntawm lub zog hluav taws xob thiab hauv av, txhais tau tias tus neeg xyuas pib hauv PCB luv luv ua kom sov. Pib nrog qhov tsawg tam sim no uas koj tuaj yeem siv tau. Qhov zoo tshaj, koj yuav pom luv Circuit Court ua ntej koj ua rau puas tsuaj ntau dua.

Kev ntsuas tus ntiv tes yog ib txoj hauv kev los tshuaj xyuas yog tias ib qho tshwj xeeb tau ua kom sov dhau

Kauj Ruam 2: Kuv yuav ntsuas qhov luv luv ntawm cov khoom siv hluav taws xob li cas

Ntxiv rau thawj kauj ruam ntawm kev txheeb xyuas lub rooj tsavxwm nrog lub qhov muag ntseeg, muaj ob peb txoj hauv kev uas koj tuaj yeem saib rau qhov ua rau PCB luv luv-Circuit Court.

Xeem nrog digital multimeter

Txhawm rau ntsuas cov phiaj xwm hluav taws xob rau luv-Circuiting, txheeb xyuas qhov tsis kam ntawm cov ntsiab lus sib txawv hauv Circuit Court. Yog tias kev tshuaj xyuas qhov muag tsis qhia tawm qhov qhia paub txog qhov chaw lossis ua rau luv Circuit Court, lob lub multimeter thiab sim taug qab qhov chaw ntawm lub cev ntawm daim ntawv luam tawm Circuit Board. Txoj kev ntsuas ntsuas tau txais kev tshuaj xyuas sib xyaw hauv ntau lub rooj sib tham hluav taws xob, tab sis kev taug qab cov ntsiab lus tuaj yeem pab koj txheeb xyuas cov teeb meem. Koj yuav xav tau lub ntsuas cua zoo heev nrog milliohm rhiab heev, uas yog qhov yooj yim tshaj yog tias nws muaj lub tswb nrov kom ceeb toom koj thaum kuaj pom luv luv. Piv txwv li, kev tiv thaiv siab yuav tsum ntsuas yog tias kev tiv thaiv raug ntsuas ntawm cov xov txuas uas nyob ib sab lossis cov ntaub qhwv ntawm PCB. Yog tias qhov ntsuas tiv thaiv nruab nrab ntawm ob tus neeg tsav tsheb uas yuav tsum tau nyob hauv ib qho kev sib cais yog qhov tsawg heev, ob tus neeg tsav tsheb tuaj yeem txuas nrog sab hauv lossis sab nrauv. Nco ntsoov tias ob lub xov hlau nyob ib sab lossis cov ntaub qhwv txuas nrog tus inductor (piv txwv li hauv kev sib txuas tsis sib xws lossis cov lim hluav taws xob sib cais) yuav tsim kev nyeem ntawv tsis tshua muaj siab heev vim tias tus inductor tsuas yog cov hlau txuas. Txawm li cas los xij, yog tias cov neeg ua haujlwm ntawm lub rooj tsavxwm nyob sib nrug deb, thiab qhov ua haujlwm koj nyeem tau me me, yuav muaj tus choj nyob qhov twg ntawm lub rooj tsavxwm.

Txheeb ze rau kev sim hauv av

Qhov tseem ceeb tshwj xeeb yog cov khoom siv luv luv cuam tshuam nrog hauv av hauv av lossis txheej hauv av. Ntau txheej PCBS nrog rau hauv av yuav suav nrog txoj hauv kev rov qab los ntawm lub rooj sib txoos ze ntawm lub qhov, muab qhov chaw yooj yim los tshuaj xyuas txhua lwm qhov thiab pawm ntawm txheej txheej ntawm lub rooj tsavxwm. Muab ib qho kev sojntsuam rau hauv av txuas thiab kov lwm qhov kev sojntsuam ntawm lwm tus neeg coj ntawm lub rooj tsavxwm. Tib qho kev sib txuas hauv av yuav muaj nyob rau lwm qhov ntawm lub rooj tsavxwm, uas txhais tau tias yog tias txhua qhov kev sojntsuam raug sib txuas nrog ob qhov sib txawv hauv av, qhov kev nyeem ntawv yuav me me. Ceev faj nrog koj cov txheej txheem thaum ua qhov no, vim tias koj tsis xav kom yuam kev luv luv rau kev sib txuas hauv av. Txhua lwm yam tsis muaj qhov muag tsis pom kev yuav tsum muaj kev tiv thaiv siab ntawm kev sib txuas hauv av thiab tus neeg xyuas pib nws tus kheej. Yog tias qhov txiaj ntsig nyeem tau qis thiab tsis muaj qhov tsis sib xws ntawm tus neeg xyuas pib hauv nqe lus nug thiab hauv av, kev puas tsuaj los yog luv Circuit Court yuav yog qhov ua rau.

Kev ntsuas multimeter tuaj yeem pab koj nrhiav txoj hauv kev luv, tab sis lawv ib txwm tsis nkag siab txaus los nrhiav txoj hauv kev luv.

Cov khoom siv hluav taws xob luv

Txhawm rau txheeb xyuas seb puas muaj cov khoom siv luv-ncig, siv lub ntsuas ntsuas los ntsuas qhov tsis kam.Yog tias kev tshuaj xyuas qhov muag tsis pom cov laug ntau dhau lossis cov ntawv hlau ntawm cov pawm, yuav muaj qhov luv luv hauv txheej sab hauv nruab nrab ntawm ob lub pawm/pins ntawm lub rooj sib txoos. Cov kab hluav taws xob luv kuj tseem tuaj yeem tshwm sim ntawm cov pawm/pins ntawm cov khoom sib dhos vim kev tsim khoom tsis zoo. Nov yog ib qho laj thawj uas PCB yuav tsum tau tshuaj xyuas rau DFM thiab tsim cov cai. Pads thiab qhov uas ze dhau ua ke tuaj yeem ua rau raug mob lossis luv-ncig thaum tsim khoom. Ntawm no, koj yuav tsum ntsuas qhov tsis kam ntawm cov pins ntawm IC lossis txuas. Cov pins uas nyob ib sab yog qhov tshwj xeeb tshaj yog ua rau luv luv, tab sis cov no tsis yog qhov chaw nkaus xwb uas tuaj yeem tshwm sim luv luv. Txheeb xyuas tias qhov tsis kam ntawm cov pawm/pins cuam tshuam rau ib leeg thiab tias kev sib txuas hauv av muaj qhov tsis kam ua haujlwm.

Txheeb xyuas qhov tsis kam ntawm lub rooj hauv av, txuas thiab lwm tus pin ntawm IC. USB txuas tau pom ntawm no.

Qhov chaw nqaim

Yog tias koj xav tias muaj hluav taws xob luv ntawm ob tus coj lossis nruab nrab ntawm tus neeg tsav tsheb thiab hauv av, koj tuaj yeem nqaim qhov chaw los ntawm kev txheeb xyuas cov neeg tsav tsheb nyob ze. Txuas ib tus coj ntawm lub multimeter mus rau qhov xav tias luv-Circuit Court txuas, txav lwm cov hlau lead mus rau qhov sib txawv hauv av txuas nrog nyob ze, thiab txheeb xyuas qhov tsis kam. Thaum koj txav mus deb rau hauv av, koj yuav tsum pom qhov kev hloov pauv hauv kev tawm tsam. Yog tias kev tiv thaiv nce ntxiv, koj tab tom txav cov xaim av tawm ntawm txoj haujlwm luv luv. Qhov no pab koj nqaim qhov chaw nyob ntawm qhov luv Circuit Court, txawm tias rau ib khub tshwj xeeb ntawm cov ntaub qhwv/pins ntawm cov khoom siv.

Kauj Ruam 3: Kuv yuav pom cov khoom tsis raug ntawm PCB

Cov khoom siv tsis raug lossis cov khoom siv teeb tsa tsis raug tuaj yeem ua rau luv Circuit Court, uas tuaj yeem ua rau muaj teeb meem ntau ntawm lub rooj tsavxwm. Koj cov khoom tuaj yeem ua tsis raug lossis tsim tawm, ua rau luv Circuit Court lossis luv Circuit Court.

Tsis zoo caij

Qee cov khoom muaj feem cuam tshuam rau kev puas tsuaj, xws li cov khoom siv hluav taws xob. Yog tias koj muaj cov khoom tsis txaus ntseeg, tshawb xyuas cov khoom ua ntej. Yog tias tsis ntseeg, koj tuaj yeem tshawb fawb Google sai sai rau cov khoom uas xav tias “ua tsis tau” txhawm rau paub seb qhov no yog teeb meem tshwm sim. Yog tias koj ntsuas kev tiv thaiv qis heev ntawm ob lub pawm/pins (tsis yog ib qho twg hauv av lossis lub zog fais fab), koj tuaj yeem luv vim qhov hluav taws kub tawm. Qhov no yog qhov qhia meej tias lub capacitor tau tawg lawm. Lub tshuab hluav taws xob tseem nthuav tawm ib zaug nws ua tsis zoo lossis qhov hluav taws xob tau siv ntau dua qhov pib tawg.

Pom lub pob nyob rau sab saum toj ntawm lub capacitor no? Qhov no qhia tau tias lub capacitor tau puas lawm.

Kauj Ruam 4: Kuv yuav ua li cas txhawm rau tshuaj xyuas PCB

Kev sim rhuav tshem yog qhov pom tseeb kawg. Yog tias koj tuaj yeem siv lub tshuab xoo hluav taws xob, koj tuaj yeem saib sab hauv lub rooj tsav xwm hauv vaj tsev yam tsis ua rau nws puas tsuaj. Thaum tsis muaj lub tshuab xoo hluav taws xob, koj tuaj yeem pib tshem tawm cov khoom siv thiab khiav cov ntsuas ntsuas ntau dua. Qhov no pab ob txoj hauv kev. Ua ntej, nws muab rau koj nkag tau yooj yim dua rau cov ntaub qhwv (suav nrog cov ntaub qhwv cua sov) uas tuaj yeem ua luv luv. Qhov thib ob, nws tshem tawm qhov ua txhaum ntawm qhov ua rau luv Circuit Court, tso cai rau koj tsom mus rau tus neeg xyuas pib. Yog tias koj sim ua kom nqaim mus rau qhov twg qhov luv Circuit Court txuas nrog ntawm cov khoom siv (piv txwv li, nruab nrab ntawm ob daim ntaub qhwv), nws yuav tsis pom tseeb tias cov khoom siv puas lossis puas pom muaj qhov luv Circuit Court nyob hauv ib sab ntawm lub rooj tsavxwm. Txij ntawm no mus, koj yuav xav tshem lub rooj sib txoos thiab tshawb xyuas cov pawm ntawm lub rooj tsavxwm. Kev tshem lub rooj sib txoos tso cai rau koj los tshuaj xyuas seb lub rooj sib txoos nws tus kheej puas los yog seb cov ntaub qhwv ntawm lub rooj tsavxwm tau txuas nrog sab hauv.

Yog tias qhov chaw ntawm qhov luv Circuit Court (lossis muaj peev xwm ua tau ntau yam luv luv Circuit Court) tseem tsis yooj yim, txiav lub rooj tsavxwm thiab sim ua kom nws nqaim. Yog tias koj muaj qee lub tswv yim ntawm qhov luv Circuit Court feem ntau, txiav ib feem ntawm pawg thawj coj saib thiab rov ua qhov ntsuas qhov ntsuas hauv ntu ntawd. Txog ntawm qhov no, koj tuaj yeem rov ua cov kev ntsuas saum toj no nrog lub ntsuas ntsuas los tshuaj xyuas luv luv ntawm cov chaw tshwj xeeb. Yog tias koj tau mus txog qhov no, koj cov ris luv tau tshwj xeeb tsis yooj yim. Qhov no yuav tsawg kawg tso cai rau koj kom luv luv Circuit Court mus rau thaj tsam tshwj xeeb ntawm pawg thawj coj saib.