Ibhodi yePCB epheleleyo kufuneka idlule kwiinkqubo ezininzi ukusuka kuyilo ukuya kwimveliso egqityiweyo. Xa zonke iinkqubo zisendaweni, ekugqibeleni iya kungena kwikhonkco lokuhlola. Kuphela iibhodi ze-PCB ezivavanyiweyo ziya kusetyenziswa kwimveliso, ngoko ke unokwenza njani umsebenzi wokuhlola ibhodi yesekethe ye-PCB , Esi sihloko esixhalabisa kakhulu wonke umntu. Umhleli olandelayo weJinhong Circuit uya kukuxelela malunga nolwazi olufanelekileyo lovavanyo lwebhodi yesekethe!

1. Xa ulinganisa i-voltage okanye uvavanya i-waveform nge-oscilloscope probe, musa ukubangela isiphaluka esifutshane phakathi kwezikhonkwane zesekethe edibeneyo ngenxa yokutyibilika kovavanyo olukhokelela okanye ukuvavanya, kwaye ulinganise kwi-peripheral eprintiweyo yesekethe eqhagamshelwe ngokuthe ngqo kwiphini. Naliphi na isiphaluka esifutshane somzuzwana singonakalisa ngokulula isiphaluka esidibeneyo. Kuya kufuneka ulumke ngakumbi xa uvavanya iisekethe ezidibeneyo zeCMOS.

2. Akuvumelekanga ukusebenzisa intsimbi yokugoqa ukuze udibanise ngamandla. Qinisekisa ukuba i-iron ye-soldering ayihlawuliswa. Gqiba iqokobhe lentsimbi yokuthambisa. Qaphela ngesekethe ye-MOS. Kukhuselekile ukusebenzisa i-6-8V ye-low-voltage iron circuit.

3. Ukuba ufuna ukongeza amacandelo angaphandle ukutshintsha inxalenye eyonakalisiweyo yesekethe edibeneyo, kufuneka kusetyenziswe amacandelo amancinci, kwaye i-wiring kufuneka ibe nengqiqo ukuphepha ukudibanisa okungafunekiyo kwe-parasitic, ngakumbi i-audio power amplifier isiphaluka esidibeneyo kunye ne-preamplifier circuit kufuneka ibe. iphathwe ngokufanelekileyo. Itheminali yomhlaba.

4. Kunqatshelwe ngokungqongqo ukuvavanya ngokuthe ngqo iTV, i-audio, ividiyo kunye nezinye izixhobo ngaphandle kwe-transformer yokuhlukanisa amandla kunye nezixhobo kunye nezixhobo ezinamagobolondo aphantsi. Nangona irekhoda yekhasethi yerediyo ngokubanzi inesiguquli samandla, xa udibana neTV ekhethekileyo okanye izixhobo ezivakalayo, ngakumbi amandla aphumayo okanye ubume bombane osetyenziswayo, kufuneka uqale ufumanise ukuba i-chassis yomatshini ihlawuliswa. , ngaphandle koko kulula kakhulu I-TV, i-audio kunye nezinye izixhobo ezihlawuliswa ngeplate ephantsi zibangela isiphaluka esifutshane sonikezelo lwamandla, oluchaphazela umjikelezo odibeneyo, obangela ukwanda okuqhubekayo kwesiphoso.

5. Ngaphambi kokuhlola kunye nokulungiswa kwesekethe edibeneyo, kufuneka uqale uqhelane nomsebenzi wesekethe edibeneyo esetyenzisiweyo, isiphaluka sangaphakathi, iiparamitha eziphambili zombane, indima yepini nganye, kunye nombane oqhelekileyo wephini, i-waveform kunye umgaqo wokusebenza wesekethe eyenziwe ngamacandelo eperipheral. Ukuba le miqathango ingentla idibene, ukuhlalutya kunye nokuhlolwa kuya kuba lula kakhulu.

6. Musa ukugweba ukuba isekethe edibeneyo yonakaliswa lula. Ngenxa yokuba uninzi lweesekethe ezidityanisiweyo zidityaniswa ngokuthe ngqo, xa isekethe ingaqhelekanga, inokubangela utshintsho lombane oluninzi, kwaye olu tshintsho alubangelwanga ngumonakalo wesekethe edibeneyo. Ukongeza, kwezinye iimeko, i-voltage elinganisiweyo yephini nganye yahlukile kwisiqhelo Xa ixabiso lihambelana okanye lisondelelene, oko akuthethi ukuba isekethe edibeneyo ilungile. Kuba ezinye iimpazamo ezithambileyo aziyi kubangela utshintsho kumbane we-DC.