Ubuyobozi bwuzuye bwa PCB bugomba kunyura mubikorwa byinshi kuva mubishushanyo kugeza kubicuruzwa byarangiye. Iyo inzira zose ziri mukibanza, amaherezo izinjira murwego rwo kugenzura. Gusa ikibaho cya PCB cyapimwe kizakoreshwa mubicuruzwa, none nigute wakora akazi ko kugenzura imbaho zumuzunguruko wa PCB, Iyi ni ingingo buri wese ahangayikishijwe cyane. Umwanditsi ukurikira wa Jinhong Circuit azakubwira kubyerekeye ubumenyi bujyanye no gupima ikibaho cyumuzunguruko!
1. Mugihe upima voltage cyangwa ukagerageza kumuraba hamwe na oscilloscope probe, ntugateze umuzenguruko mugufi hagati yipine yumuzunguruko uhuriweho kubera kunyerera kwipimisha cyangwa iperereza, hanyuma upime kumuzingo wacapwe wa peripheri uhujwe na pin. Inzira ngufi yigihe gito irashobora kwangiza byoroshye uruziga. Ugomba kwitonda cyane mugihe ugerageza flat-pack ya CMOS ihuriweho.
2. Ntibyemewe gukoresha icyuma cyo kugurisha kugurisha nimbaraga. Menya neza ko icyuma cyo kugurisha kitishyurwa. Kuramo igishishwa cyicyuma. Witondere umuzunguruko wa MOS. Ni byiza gukoresha icyuma cya 6-8V gike cyane.
3. Niba ukeneye kongeramo ibice byo hanze kugirango usimbuze igice cyangiritse cyumuzunguruko uhuriweho, hagomba gukoreshwa ibice bito, kandi insinga zigomba kuba zumvikana kugirango wirinde guhuza parasitike bitari ngombwa, cyane cyane amajwi yongerera imbaraga amajwi hamwe na preamplifier circuit bigomba kuba Byakozwe neza. Ubutaka.
4. Birabujijwe rwose kugerageza mu buryo butaziguye TV, amajwi, videwo n'ibindi bikoresho nta transformateur yo kwigunga ifite ibikoresho n'ibikoresho bifite ibishishwa byubutaka. Nubwo amajwi rusange ya cassette ya radio afite transformateur yingufu, mugihe uhuye nibindi bikoresho byihariye bya TV cyangwa amajwi, cyane cyane ingufu zisohoka cyangwa imiterere yumuriro w'amashanyarazi wakoreshejwe, ugomba kubanza kumenya niba chassis yimashini yishyurwa , bitabaye ibyo biroroshye cyane Televiziyo, amajwi nibindi bikoresho byashizwe ku isahani yo hepfo bitera umuzunguruko mugufi w'amashanyarazi, bigira ingaruka kumuzunguruko uhuriweho, bigatera kwaguka kwamakosa.
5. Mbere yo kugenzura no gusana uruziga rwinjizwamo, ugomba kubanza kumenyera imikorere yumuzunguruko uhuriweho wakoreshejwe, umuzenguruko w'imbere, ibipimo by'amashanyarazi nyamukuru, uruhare rwa buri pin, hamwe na voltage isanzwe ya pin, imiterere yumurongo na ihame ryakazi ryumuzunguruko ugizwe nibice bya periferiya. Niba ibisabwa haruguru byujujwe, gusesengura no kugenzura bizoroha cyane.
6. Ntugacire urubanza ko umuzunguruko wangiritse wangiritse byoroshye. Kuberako imiyoboro myinshi ihuriweho hamwe ihujwe neza, iyo umuzunguruko udasanzwe, birashobora gutera impinduka nyinshi za voltage, kandi izi mpinduka ntabwo byanze bikunze biterwa no kwangirika kwumuzunguruko. Mubyongeyeho, mubihe bimwe na bimwe, voltage yapimwe ya buri pin itandukanye nibisanzwe Iyo indangagaciro zihuye cyangwa zegeranye, ntabwo bivuze ko byanze bikunze umuzunguruko ari mwiza. Kuberako amakosa yoroheje amwe ntabwo azatera impinduka muri voltage ya DC.