Iyo yakazara PCB bhodhi inoda kupfuura nematanho akawanda kubva pakugadzira kusvika pakupera chigadzirwa. Kana maitiro ese ari panzvimbo, inozopedzisira yapinda yekutarisa link. Iwo chete akaedzwa mabhodhi ePCB achaiswa kune chigadzirwa, saka maitiro ekuita PCB redunhu bhodhi rekuongorora basa , Iyi inyaya iyo munhu wese ane hanya nazvo. Mupepeti anotevera weJinhong Circuit achakuudza nezve ruzivo rwakakodzera rwekuongorora bhodhi redunhu!

1. Pakuyera voltage kana kuedza waveform neoscilloscope probe, usakonzere kupfupika kwepakati pakati pepini yedunhu rakasanganiswa nekuda kwekutsvedza kweiyo test lead kana probe, uye kuyera pane peripheral yakadhindwa wedunhu yakabatana nepini. Chero chenguva pfupi dunhu rinogona kukuvadza zviri nyore dunhu rakabatanidzwa. Iwe unofanirwa kuchenjerera paunenge uchiyedza flat-package CMOS yakabatanidzwa maseketi.

2. Hazvibvumirwi kushandisa simbi yakanyungudutswa yesimbi ine simba. Iva nechokwadi chokuti iron soldering haina kubhadharwa. Gadzira goko resimbi yekusimbisa. Ngwarira nedunhu reMOS. Izvo zvakachengeteka kushandisa 6-8V yakaderera-voltage yedunhu simbi.

3. Kana iwe uchida kuwedzera zvikamu zvekunze kutsiva chikamu chakakanganisika chedunhu rakabatanidzwa, zvikamu zviduku zvinofanira kushandiswa, uye wiring inofanira kuva inonzwisisika kudzivirira zvisingakoshi parasitic coupling, kunyanya audio audio amplifier integrated circuit uye preamplifier circuit inofanira kuva. kubatwa zvakanaka. Iyo yepasi terminal.

4. Zvinorambidzwa zvachose kuedza zvakananga TV, odhiyo, vhidhiyo nemimwe midziyo isina simba rekuzviparadzanisa neshanduro ine zviridzwa uye midziyo ine mabhomba akaiswa pasi. Kunyangwe iyo general radio cassette rekodha ine simba rekushandura, paunosangana neakanyanya kukosha TV kana odhiyo mudziyo, kunyanya simba rekubuda kana chimiro chemagetsi anoshandiswa, unofanira kutanga waona kuti chassis yemuchina yakachajwa. , kana zvisina kudaro zviri nyore kwazvo The TV, odhiyo nemimwe michina inopomerwa neplate yepasi inokonzera pfupi pfupi yemagetsi, iyo inokanganisa dunhu rakabatanidzwa, zvichiita kuti kuwedzera kwechikanganiso kuwedzere.

5. Usati waongorora nekugadzirisa dunhu rakabatanidzwa, unofanirwa kutanga waziva basa redunhu rakasanganiswa rinoshandiswa, dunhu remukati, maparamita makuru emagetsi, basa repini imwe neimwe, uye yakajairika voltage yepini, waveform uye. iyo nheyo yekushanda yedunhu rinoumbwa nezvikamu zveperipheral. Kana mamiriro ari pamusoro apa akasangana, kuongorora uye kuongorora kuchava nyore nyore.

6. Usatonga kuti dunhu rakabatanidzwa rinokuvadzwa nyore nyore. Nekuti akawanda maseketi akabatanidzwa akabatana zvakananga, kana dunhu ringove risina kujairika, rinogona kukonzera shanduko yemagetsi akawanda, uye shanduko idzi hadzina kukonzerwa nekukuvadzwa kwedunhu rakabatanidzwa. Uye zvakare, mune dzimwe nguva, iyo yakayerwa voltage yepini yega yega yakasiyana neyeyakajairwa Kana iyo yakakosha ichienderana kana iri padhuze kune mumwe nemumwe, hazvireve hazvo kuti dunhu rakasanganiswa rakanaka. Nekuti zvimwe zvinyoro zvinyoro hazvikonzere shanduko muDC voltage.