Ukuhola okubomvu kusulwe, izikhonkwane embuthanweni obomvu zonke izindawo, kanti izigxobo ezingezinhle zama-capacitors ziyikho zonke izindawo. Beka ukuhola kokuhlolwa okumnyama esikhwameni se-IC ukuze ulinganiswe, bese i-multimeter izokhombisa inani le-diode, futhi yahlulela ikhwalithi ye-IC esekelwe kwinani le-diode. Yini inani elihle? Kuya ngesipiliyoni. Noma ngabe unebhodi umama futhi uqhathaniswa nezilinganiso zokuqhathanisa.
Ungakuthola Kanjani Amaphutha
1 Bheka isimo sengxenye
Thola ibhodi yesekethe elinephutha, okokuqala gcina ukuthi iBhodi yesekethe linomonakalo osobala wengxenye, njenge-electrolytic capacitor burnout kanye nokuvuvukala, ukuphefumula okuvuthayo, nokuphelelwa ngamandla kwamadivayisi.
2 Bheka ukuthengisa kwebhodi yesekethe
Isibonelo, noma ngabe ibhodi lokujikeleza eliphrintiwe lilonakalisiwe noma lipakwe; ukuthi ngabe amalunga womthengisi awela noma ngokusobala athengiswa kahle; Ukuthi isikhumba se-chepper ye-Copper yeBhodi yesekethe sihleliwe, sashiswa saphenduka simnyama.
3 Ukubheka i-plug-in plug-in
Njengama-Clietcieuts ahlanganisiwe, ama-Diode, ama-Transformers e-Circuity Board, njll afakwe kahle.
4 Ukumelana nokuhlola okulula \ umthamo \ ukungeniswa
Sebenzisa i-multimeter ukwenza isivivinyo esilula ezingxenyeni ezisolwayo njengokumelana, amandla, kanye nokwanda kwenani lokumelana ukuze kuhlolwe ukuthi ngabe inani lokumelana liyanda, ukujikeleza kwe-capacitor kanye nokushintshwa kwe-capacita, ukujikeleza komjikelezo okuvulekile kanye nokujikeleza okufushane kanye nokujikeleza okufushane kanye nokujikeleza okufushane.
5 Ukuhlolwa kwamandla
Ngemuva kokubukwa okulula okushiwo ngenhla nokuhlolwa okuvela ngenhla, iphutha alikwazi ukuqedwa, futhi ukuhlolwa kwamandla angenziwa. Hlola okokuqala noma ngabe amandla ebhodi lesekethe ijwayelekile. Njengokuthi ukuhlinzekwa kwamandla kwe-AC kweBhodi yesekethe kungajwayelekile, ukuthi ngabe ukuphuma komlawuli weVoltage Regulat kuyinto engajwayelekile, ngabe ukukhishwa kwamandla okukhipha amandla kanye ne-waveform kungajwayelekile, njll.
6 Uhlelo lwe-Brush
Ngezakhi ezihlelekile ezifana ne-microcomputer ye-single-chip, i-DSP, i-CPLD, njll.
Ungalungisa kanjani amabhodi wesifunda?
Okungu-1
Le ndlela inembile impela. Ngokuhlola ngokucophelela, singabona kahle iminonjana eshisiwe. Lapho le nkinga yenzeka, kufanele sinake imithetho ngesikhathi sokulungiswa nokuhlolwa ukuze siqinisekise ukuthi akusekho ukulimala okungathi sína kwenzeka lapho kuvulwa amandla. Lapho sisebenzisa le ndlela, sidinga ukunaka izindaba ezilandelayo:
1. Bheka ukuthi iBhodi yesekethe lilinyazwe yindoda.
2 Njengoba ukumelana akunakubukwa, kungalinganiswa kuphela ngensimbi. Izingxenye ezimbi ezihlobene nazo kufanele zishintshwe ngesikhathi.
I-3.ObSVOVEAIR ye-Circuit Board Completated Circued, efana ne-CPU, isikhangiso namanye ama-chips ahlobene, kufanele aguqulwe ngesikhathi lapho ebheka izimo ezihlobene njengokuvuthanisa nokuvutha.
Imbangela yalezi zinkinga ezingenhla zingaba manje. Okwamanje kungadala ukushiswa, ngakho-ke hlola umdwebo ofanele wesilisa ukuze ubone ukuthi inkinga ikuphi.
2 isilinganiso se-static
Ekuhlolweni kwebhodi lesekethe, kuvame ukuba nzima ukuthola izinkinga ezithile ngokubheka indlela, ngaphandle kokuthi kusobala ukuthi kushisiwe noma kukhubazekile. Kepha iningi lezinkinga zisadinga ukulinganiswa nge-voltmeter ngaphambi kokuvuselelwa. Izingxenye zamabhodi ejikelezo nezingxenye ezihlobene kufanele zihlolwe ngamunye ngamunye. Inqubo yokulungisa kufanele isetshenziswe ngokuya ngenqubo elandelayo.
Thola umjikelezo omfushane phakathi kokunikezwa kwamandla nomhlabathi bese ubheka isizathu.
Bheka ukuthi i-diode ijwayelekile.
Bheka ukuthi ngabe kukhona umjikelezo omfushane noma umjikelezo ovulekile eCapacitor.
Hlola amasekethe ahlanganisiwe ahlobene nebhodi, kanye nokumelana nezinye izinkomba zedivayisi ezihlobene.
Singasebenzisa indlela yokubheka nendlela yokulinganisa ukuxazulula iningi lezinkinga ekunakekelweni kwebhodi lesekethe. Lokhu akunakuphikwa, kepha kufanele kuqinisekise ukuthi ukunikezwa kwamandla kuvamile ngesikhathi sokulinganisa futhi akukho monakalo wesibili ongenzeka.
3 isilinganiso se-inthanethi
Indlela yokulinganisa eku-inthanethi ivame ukusetshenziswa ngabakhiqizi. Kuyadingeka ukwakha ipulatifomu evamile yokulungisa iphutha neyokulungisa ukuze kube lula ukulungiswa. Lapho ulinganisa ngale ndlela, udinga ukulandela izinyathelo ezingezansi.
Amandla ebhodini lesekethe bese ubheka ukuthi izakhi zigcwele ngokweqile. Uma kunjalo, uyihlole bese uyifaka esikhundleni sezinto ezihlobene.
Bheka isifunda sesango esihambelana nebhodi yesekethe, ubone ukuthi ngabe kunenkinga nge-logic, bese unquma ukuthi i-chip ilungile noma imbi.
Hlola ukuthi umphumela we-Digital Circuit Crystal Oscillator ujwayelekile.
Indlela yokulinganisa eku-inthanethi isetshenziselwa ikakhulukazi ukuqhathanisa amabhodi amabili amahle namabi. Ngokuqhathanisa, inkinga iyatholakala, inkinga ixazululwa, futhi ukulungiswa kwebhodi lesekethe sekuqediwe.