Bhodhi rePCB ndiro musana wechero chigadzirwa chemagetsi, chikuva chinoiswa zvinhu zvemagetsi. Zvisinei, pasinei nekukosha kwavo, mapuranga aya haana kudzivirirwa mukukundikana kana kukanganisa. Ndosaka zvakakosha kuti udzidze nzira yekuyedza mabhodhi ePCB zvine multimeter. Mune ino blog, isu tichaongorora nhanho-ne-nhanho maitiro ekuyedza PCB board kuti ive nechokwadi chekushanda kwayo kwakakwana uye kuona matambudziko angangoitika.
Dzidza nezve multimeters:
Usati wanyura mukati mekuyedza maitiro, zvakakosha kuti tizive nemidziyo yatichange tichishandisa - iyo multimeter. Multimeter chishandiso chemagetsi chinoyera zvakasiyana zvinhu zvemagetsi zvakaita sevoltage, ikozvino, uye kuenderera. Iyo ine zvinhu zvakasiyana siyana zvinosanganisira kuratidza, kusarudzwa dial, ports uye probes.
Danho 1: Gadzirira bvunzo
Tanga nekuwana inoshanda multimeter uye kujairana nemabasa ayo uye marongero. Ita shuwa kuti bhodhi rePCB rakadzimwa kubva kune chero sosi yemagetsi kudzivirira zvinogona kukanganisa kana kukuvara. Ziva mapoinzi akasiyana auchange uchiyedza pabhodhi uye ita shuwa kuti anowanikwa.
Nhanho yechipiri: Edza Voltage
Kuti uedze voltage paPCB board, ndapota isa iyo multimeter kune voltage mode uye sarudza iyo yakakodzera renji zvinoenderana neinotarirwa voltage. Batanidza iyo dema probe kune yakajairwa (COM) chiteshi uye iyo tsvuku probe kune voltage (V) port. Bata iyo dzvuku probe kune yakanaka terminal yePCB uye dema probe kune yepasi terminal kuti utange kuyedza voltage. Cherechedza kuverenga uye dzokorora maitiro kune mamwe mazano akakodzera pabhodhi.
Danho rechitatu: Test Kuenderera mberi
Kuenderera mberi kuyedzwa kwakakosha kuti uve nechokwadi chekuti hapana anovhura kana shorts aripo paPCB. Seta iyo multimeter kune yekuenderera modhi nekushandura iyo yekusarudzika dial zvinoenderana. Batanidza iyo dema probe kuCOM port uye iyo tsvuku probe kune yakatsaurirwa kuenderera chiteshi pane multimeter. Bata ma probes pamwe chete uye uve nechokwadi chekunzwa beep kuratidza kuenderera mberi. Wobva wabata probe kune yaunoda paPCB woteerera beep. Kana pasina ruzha, pane dunhu rakavhurika, rinoratidza kukanganiswa kwekubatana.
Nhanho Yechina: Edza Kuramba
Kuedza resistors kunobatsira kuona chero anomalies kana kukuvadzwa muzvikamu zvedunhu paPCB board. Seta iyo multimeter kune yekupikisa maitiro (iyo Greek tsamba omega chiratidzo). Batanidza iyo nhema probe kuCOM port uye iyo tsvuku probe kune resistor port. Bata probes pamwe chete uye tarisa kuramba kuverenga. Zvadaro, bata probes kune dzakasiyana-siyana pabhodhi uye enzanisa kuverenga. Kana kuverenga kuchitsauka zvakanyanya kana kuratidza kuramba kusingaperi, kunoratidza dambudziko rinogona kuitika nePCB dunhu.
Kuedza PCB board ine multimeter inhanho yakakosha mukuona kushanda kwayo uye kuvimbika. Nekutevera nhanho-ne-nhanho maitiro anotsanangurwa mugwaro iri, unogona kunyatsoongorora voltage, kuenderera, uye kuramba pabhodhi redunhu. Rangarira kuti multimeter chishandiso chakawanda, uye kunzwisisa kushanda kwayo kwakakosha pakuyedzwa chaiko. Wakashongedzwa nehunyanzvi uhu, unogona kugadzirisa matambudziko uine chivimbo uye nekugadzirisa kunodiwa kuti uve nechokwadi chekuita kwePCB board yako.
Nguva yekutumira: Sep-06-2023