Kubva kuPCB World.
Ingave bhodhi rakagadzirwa nemumwe munhu kana bhodhi rePCB rakagadzirwa uye rakagadzirwa iwe pachako, chinhu chekutanga kuwana kutarisa kuvimbika kwebhodhi, senge tinning, kutsemuka, mapfupi maseketi, akavhurika maseketi, uye kuboora.Kana bhodhi racho richinyanya kushanda Iva wakasimba, ipapo iwe unogona kutarisa kukosha kwekupikisa pakati pemagetsi uye pasi waya nenzira.
Mumamiriro ezvinhu akajairwa, bhodhi rakazvigadzira richaisa zvikamu mushure mekunge tinning yapera, uye kana vanhu vakazviita, ingori isina chinhu PCB board ine maburi.Iwe unofanirwa kuisa zvikamu iwe pachako kana wazviwana..
Vamwe vanhu vane rumwe ruzivo nezve mabhodhi ePCB avanogadzira, saka vanofarira kuyedza zvikamu zvese kamwechete.Muchokwadi, zviri nani kuzviita zvishoma nezvishoma.
PCB redunhu bhodhi pasi debugging
Nyowani PCB bhodhi debugging inogona kutanga kubva kune simba rekupa chikamu.Nzira yakachengeteka ndeyekuisa fuse uye wozobatanidza magetsi (kungoitika, zviri nani kushandisa simba rakagadzikana).
Shandisa yakagadzikana magetsi kuseta iyo overcurrent yekudzivirira ikozvino, uye wobva wawedzera zvishoma nezvishoma voltage yeiyo yakagadzikana magetsi.Iyi maitiro inoda kutarisa iyo yekupinda ikozvino, yekupinda voltage uye inobuda voltage yebhodhi.
Kana iyo voltage ichigadziriswa kumusoro, hapana chepamusoro-ikozvino chekudzivirira uye kubuda kwemagetsi kwakajairika, zvino zvinoreva kuti chikamu chemagetsi chebhodhi hachina dambudziko.Kana iyo yakajairwa kubuda voltage kana kupfuura-ikozvino kudzivirira yakapfuurwa, saka chikonzero chekukanganisa chinofanira kuongororwa.
Circuit board component installation
Zvishoma nezvishoma isa ma modules panguva yekugadzirisa.Kana imwe neimwe module kana akati wandei ma module akaiswa, tevera matanho ari pamusoro apa kuti uedze, izvo zvinobatsira kudzivirira zvimwe zvakavanzwa zvikanganiso pakutanga kwekugadzira, kana zvikanganiso zvekuisa zvezvikamu, izvo zvinogona kutungamira mukupisa kwakanyanya.Zvakaipa zvikamu.
Kana kutadza kukaitika panguva yekuisa, nzira dzinotevera dzinowanzo shandiswa kugadzirisa dambudziko:
Troubleshooting nzira yekutanga: voltage kuyerwa nzira.
Kana kuchengetedzwa kwepamusoro-ikozvino kuchiitika, usamhanyire kuparadzanisa zvikamu, tanga wasimbisa magetsi epini yepini yepini yega yega kuti uone kana iri munharaunda yakajairika.Wobva watarisa iyo referensi voltage, kushanda voltage, nezvimwe.
Semuenzaniso, kana iyo silicon transistor ikabatidzwa, voltage yeBE junction ichave yakatenderedza 0.7V, uye iyo CE junction inowanzove 0.3V kana zvishoma.
Pakuyedzwa, zvinoonekwa kuti BE junction voltage yakakwira kupfuura 0.7V (special transistors seDarlington haabatanidzwe), zvino zvinoita kuti BE junction yakavhurika.Sequentially, tarisa voltage pane imwe neimwe nzvimbo kuti ubvise kukanganisa.
Troubleshooting nzira mbiri: chiratidzo jekiseni nzira
Iyo nzira yejekiseni yechiratidzo inonetsa kupfuura kuyera voltage.Kana iyo sosi yechiratidzo ichitumirwa kune yekuisa terminal, isu tinofanirwa kuyera waveform yepoindi yega yega kuti tiwane chikanganiso cheiyo waveform.
Ehe, iwe unogona zvakare kushandisa ma tweezers kuona iyo yekuisa terminal.Iyo nzira ndeye kubata iyo yekuisa terminal nema tweezers, wobva waona mhinduro yeiyo yekuisa terminal.Kazhinji, iyi nzira inoshandiswa munyaya yeaudio uye vhidhiyo amplifier circuits (chinyorwa: inopisa pasi redunhu uye high voltage circuit) Usashandise nzira iyi, inowanzoita tsaona dzemagetsi.
Iyi nzira inoona kuti nhanho yapfuura ndeyakajairika uye nhanho inotevera inopindura, saka kukanganisa hakusi padanho rinotevera, asi padanho rakapfuura.
Troubleshooting nzira yechitatu: zvimwe
Iwo maviri ari pamusoro apa ari nyore uye akananga nzira.Mukuwedzera, semuenzaniso, kuona, kunhuwa, kuteerera, kubata, nezvimwewo, izvo zvinowanzotaurwa, mainjiniya anoda humwe ruzivo kuti akwanise kuona matambudziko.
Kazhinji, "tarisa" haisi kutarisa mamiriro ezvigadzirwa zvekuongorora, asi kuona kana kuonekwa kwezvikamu kwapera;"kunhuwa" kunonyanya kureva kana kunhuwa kwezvikamu hakuna kunaka, sekunhuhwirira kwekutsva, electrolyte, nezvimwewo. Zvizhinji zvezvikamu zviri mukati Kana zvakanganiswa, zvinopa kunhuhwirira kunopisa kusingafadzi.
Uye "kuteerera" kunonyanya kuteerera kana inzwi rebhodhi rakajairika pasi pemamiriro ekushanda;nezve "kubata", haisi yekubata kana zvikamu zvakasununguka, asi kunzwa kana kutonhora kwezvikamu zvakajairika nemaoko, somuenzaniso, inofanira kutonhora pasi pemamiriro ekushanda.Izvo zvikamu zvinopisa, asi zvinopisa zvinotonhora zvisingaite.Usaitsikirira nemaoko ako zvakananga panguva yekubata kuti udzivise ruoko kupiswa nekupisa kwakanyanya.