Ubwenge nuburyo bwo kugenzura bwa PCB: Reba, Umva, impumuro, gukoraho ...
1. Birabujijwe cyane gukoresha ibikoresho byikizamini bifatika kugirango ukore kuri TV ya Live, amashusho, videwo nibindi bikoresho byo hepfo kugirango ugerageze ku kibaho cya PCB nta murongo wigumya
Birabujijwe rwose gupima TV, amajwi, videwo nibindi bikoresho nta kwigunga kwamashanyarazi hamwe nibikoresho nibikoresho bifite ibishishwa bifite ishingiro. Nubwo radiyo rusange hamwe na Cassette yandika ifite imbaraga, iyo uhuye nibikoresho byihariye bya TV cyangwa amajwi, cyane cyane imbaraga zamashini zakoreshejwe, ugomba kubanza kumenya amashanyarazi, ugomba kubanza kumenya amashanyarazi, ugomba kubanza kumenya amashanyarazi, ugomba kubanza kumenya amashanyarazi, ugomba kubanza kumenya amashanyarazi, ugomba kubanza kumenya amashanyarazi, ugomba kubanza kumenya amashanyarazi, bigira ingaruka ku isahani yo hepfo, bigira ingaruka ku muzenguruko uhuriweho, utera kurushaho kwagura amakosa.
2. Witondere imikorere yo kwishyurwa
Ntabwo byemewe gukoresha icyuma cyo kugurisha kugirango ugurishe imbaraga. Menya neza ko icyumagurisha kitishyurwa. Nibyiza kugabanya igikonoshwa cyicyuma. Witondere cyane hamwe numuzunguruko. Nibyiza gukoresha umwenda muto wa voltage ya 6 ~ 8V.
3. Menya ihame ryakazi ryumuzunguruko uhuriweho numuzunguruko ufitanye isano mbere yo kwipimisha imbaho
Mbere yo kugenzura no gusana umuzenguruko uhujwe, ugomba kubanza kumenyera imikorere yumuzunguruko winjijwe mumbere, uruhare rwa buri PIN, hamwe na voltage isanzwe ya pin, hamwe nihame risanzwe rya pin, kandi ihame risanzwe ryimizunguruko zigizwe nibice bya peripheque. Niba ibisabwa haruguru byujujwe, gusesengura no kugenzura bizaba byoroshye cyane.
4. Ntuteze imirongo ngufi hagati yipimi mugihe ugerageza PCB
Mugihe upima voltage cyangwa ugerageza kwipimisha hamwe na oscilloscope, ntutere umuzunguruko mugufi hagati yimpande zumuzunguruko winjijwe hamwe kugirango unyerera cyangwa ibibazo. Nibyiza gupima kumurongo wa peripheri yacapwe bihujwe mumapine. Inzoka iyo ari yo yose y'akanya gato irashobora kwangiza kuzenguruka byoroshye, bityo rero witonde cyane mugihe ugerageza kuri Flat-paki CMOS Ihuriro.
5. Kurwanya imbere mu kizamini cya PCB kigomba kuba kinini
Mugihe upima voltage ya DC pin, umuyoboro hamwe niterambere ryimbere ryumutwe urenze 20kω / V hagomba gukoreshwa ikosa rinini ryo gupima pin.
6. Witondere guhiga ubushyuhe bwamazururo yinjijwe mugihe cyo kwipimisha imbaho
Umuzunguruko uhuriweho nububasha ugomba gutandukanya ubushyuhe, kandi ntibyemewe gukora munsi yububasha bukabije nta mbuto.
7. Umugozi wo kuyobora winama ya PCB agomba gushyira mu gaciro
Niba ukeneye kongeramo ibice byo hanze kugirango usimbuze igice cyumuzunguruko uhujwe, kandi insinga zigomba gukoreshwa kugirango wirinde guhuza bitari ngombwa, cyane cyane kuruhande rwimbaraga zidakenewe, imperuka ya premplifier.
8. Reba ikibaho cya PCB kugirango umenye neza ubuziranenge
Iyo ugurishwa, umugurisha arakomeye, kandi kwirundanya k'umugurisha na pores birashobora gutera byoroshye abagurisha ibinyoma. Igihe cyo kugurisha muri rusange kitari amasegonda 3, kandi imbaraga zumugurisha zigurishwa zigomba kuba hafi 25w hamwe no gushyushya imbere. Umuzenguruko uhujwe wagurishijwe ugomba kugenzurwa witonze. Nibyiza gukoresha Ohmmeter kugirango upime niba hari umuzunguruko mugufi hagati yipimisha, wemeze ko nta adherion athesion, hanyuma akangure imbaraga.
9. Ntukamenye byoroshye ibyangiritse byumuzunguruko winjijwe mugihe ugerageza ikizamini cya PCB
Ntugacire urubanza ko umuzenguruko uhujwe nawo wangiritse byoroshye. Kuberako imirongo ihuriweho cyane ihujwe nayo, iyo umuzunguruko udasanzwe, birashobora gutuma impinduka nyinshi za voltage, kandi izi mpinduka ntabwo byanze bikunze ziterwa no kwangirika kwumuzungura. Byongeye kandi, mubihe bimwe, voltage yapimwe ya buri pin itandukanye nibisanzwe mugihe indangagaciro zihuye cyangwa zifunga buri gihe, ntabwo zisobanura buri gihe ko umuzenguruko wuzuye ari mwiza. Kuberako amakosa amwe yoroheje ntabwo azatera impinduka muri dc voltage.
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Uburyo bwa PCB bukoreshwa
Kubwato bushya bwa PCB bwasubijwe inyuma, tugomba kubanza kureba neza niba hari ikibazo kiriho niba hari ibishishwa bitunguranye, bimaze gufungura niba bibaye ngombwa, reba niba ari binini bihagije.
Ku kibaho gishya cyateguwe, gukemura akenshi guhura ningorane zimwe, cyane cyane iyo ikigo kiba kinini kandi hari ibice byinshi, akenshi ntibishoboka gutangira. Ariko niba umenya urutonde rwuburyo bwumvikana, gukemura bizagenda kabiri ibisubizo nigice cya kabiri cyimbaraga.
PCB Kwinjira Intambwe:
1. Kubijyanye n'ikibaho gishya cya PCB cyasubijwe inyuma, tugomba kubanza kureba neza niba hari ikibazo kiriho, nko kuba hari imirongo igaragara, ibi biba bimaze gukingura, urashobora kugenzura niba ihohoterwa rishingiye ku mbaraga kandi ubutaka bunini bihagije.
2. Hanyuma ibice byashyizweho. Module yigenga, niba utazi neza ko bakora neza, nibyiza ko utabishyiramo byose, ariko ushyire igice igice (kumuzunguruko ugereranije na rimwe, kuburyo byoroshye kumenya neza intera. Iyo uhuye nibibazo, ntushobora gutangira.
Muri rusange, urashobora kwishyiriraho amashanyarazi ubanza, hanyuma imbaraga zo kugenzura niba ibisohoka voltage yimbaraga ari ibisanzwe. Niba udafite icyizere cyinshi mugihe uhamye (nubwo waba uzi neza ko wongeyeho fuse, mugihe cyongeyeho gusa), tekereza ukoresheje amashanyarazi agenga agaciro hamwe nubuzima bugabanijwe.
Teganya uburinzi bukabije bwambere, hanyuma wongere buhoro buhoro agaciro ka voltage yimbaraga zateganijwe, hanyuma ukurikirane ibyinjijwemo ibirimo, winjiza voltage no gusohoka voltage. Niba ntakigereranyo kirenze nibindi bibazo mugihe cyo guhinduka hejuru, kandi ibisohoka voltage yageze mubisanzwe, amashanyarazi ni sawa. Bitabaye ibyo, guhagarika amashanyarazi, shakisha amakosa yegutanya, hanyuma usubiremo intambwe zavuzwe haruguru kugeza igihe amashanyarazi ari ibisanzwe.
3. Ibikurikira, shyiramo ibindi module buhoro buhoro. Igihe cyose module yashizwemo, imbaraga kuri no kugerageza. Iyo ufashe, ukurikize intambwe zavuzwe haruguru kugirango wirinde ibijyanye no gushushanya amakosa na / cyangwa kwishyiriraho amakosa hanyuma utwike ibice.
