Cov hloov kho fais fab yog cov mem tes thiab transformer. Qhov tom kawg tau yooj yim hauv lub cuab yeej thiab muaj kev kho vaj tse. Tshwj xeeb tshaj yog thaum tsis muaj lub siab xav yuav lub zog fais fab tshiab.
Tsim nyog
multimeter (ohmmeter); - Phillips ntsia hlau; - qis zog soldering hlau; - khoom seem thiab cov ntsiab lus ntxiv
Cov Lus Qhia
Kauj ruam 1
Kuaj yog qhov ntsuas ntawm lub pob adapter txiav ua haujlwm. Yog tias lub teeb taws LED, pib daws teeb meem nrog kev txuas ntxiv ntawm cov hlau los ntawm cov hluav taws xob tam sim no nkag mus rau hauv lub hwj huam hluav taws xob. Txhawm rau kuaj cov hlau, ntsuas nws qhov kev tawm tsam. Lub faulty xaim yuav muaj qhov tsis kam tawm. Txhawm rau txuas cov coj ntawm multimeter rau ob qho kawg ntawm cov hlau tsis muaj kev tawg, siv cov xaws xov los yog tshwj xeeb rab koob-ua ntawm ib qho loj. Hloov cov phom sij uas hloov nrog lub tshiab.
Kauj ruam 2
Yog tias qhov ntsuas qhia tau tias tua lawm, tshem tawm ntawm txoj siv ntxiv. Ua li ntawd, koj yuav pom tau tias nws muaj qhov hloov pauv thiab hluav taws xob xob. Cov hloov hluav taws xob ua kom qis hluav taws xob txij li 220 V mus rau kwv yees li tus nqi uas yuav tsum tau ua. Lub tshuab hluav taws xob hluav taws xob kho qhov hluav taws xob tam sim no ntawm AC rau DC thiab ua kom cov hluav taws xob hloov mus rau tus nqi hluav taws xob.
Kauj ruam 3
Cov kev hloov pauv tshwj xeeb muaj hluav taws kub tawg lossis tawg ntawm cov xov lossis theem pib. Txij li feem ntau cov hloov kho tau ua nyob rau hauv Suav teb thiab txuag ntawm cov xov hlau tsis zoo, kuaj xyuas qhov hloov ua ntej. Txhawm rau ua qhov no, kwv yees multimeter thiab ntsuas qhov tsis kam ntawm ob qho tib si windings. Koj tuaj yeem ntsuas qhov tsis kam ntawm thawj qhov kev sib hloov los ntawm kev sib chwv ntawm lub ntsiab ntsaws yam tsis muaj kev rhuav tshem ntawm kev hloov pauv. Qhov tsis kam ntawm kev siv thawj winding yuav tsum yog ob peb txhiab Ohms (ob peb kOhms), qhov tsis kam ntawm kev sib hloov ntawm theem ob yuav tsum yog ntau kaum ntawm Ohms. Yog tias cov cua ntsawj yog qhov tsis xws luag, nws yuav tsum rov qab los siv cov hlau tshiab zoo sib xws.
Kauj ruam 4
Thaum kuaj lub tshuab hloov hluav taws xob, tsis txhob kov cov khoom seem nrog koj txhais tes. Cov chaw tiv tauj tsuas yog kov tau los ntawm cov khoom siv ntawm cov multimeter. Kev ua txhaum txoj cai no yuav tsis ua teeb meem rau koj kev noj qab haus huv, tab sis kev nyeem ohmmeter yuav tsis raug. Nco ntsoov txiav tawm cov coj mus rau hluav taws xob Circuit Court ua ntej ntsuas qhov tsis kam, vim nws tseem yuav cuam tshuam cov txiaj ntsig tau.
Kauj ruam 5
Tom qab disassembling transformer, nrhiav tus choj diode. Nws yog tsim los txhim kho qhov hluav taws xob tam sim no ntws los ntawm kev sib hloov ntawm theem ob. Txheeb xyuas txhua lub diode nyob rau hauv lem los ntawm ntsuas nws tsis kam. Hauv qhov no, nws tsis tas yuav ham nws. Ib qho faulty diode yuav muaj qhov qis heev los sis tsis kam tiv taus. Kev pabcuam - muaj peev txheej ntau, tsis tag li ntawv xwb. Hloov lub diode tawg nrog lub tshiab.
Kauj Ruam 6
Txheeb xyuas cov hluav taws xob hauv tshuab hluav taws xob ntawm lub hloov pauv kom zoo. Txheeb xyuas qhov ua yuam kev ntawm nws cov ntsiab lus los ntawm kev tsaus ntuj ncig cov xov tooj cua, cov kab nrib pleb thiab sib tw ntawm lawv kis, o ntawm lub zog hloov pauv. Ua tib zoo solder lub tawg seem, saib ntawm cov ntawv los ntawm rooj plaub, yuav tus zoo tib yam thiab nruab tshiab. Thaum hloov lub capacitor, nws raug nquahu kom muab lub tshiab nrog lub peev xwm loj dua, thiab thaum soldering, them sai sai rau lub polarity ntawm nws cov xam nrog.
Kauj Ruam 7
Yog hais tias lub stabilizer malfunctions, nco ntsoov, kos duab lossis thaij duab nws qhov chaw ntawm lub microcircuit. Ib qho tshiab yuav tsum tau muab ntsia kom paub txog lub hom phiaj thiab saib qhov chaw nyob ntawm cov khoom siv kom ruaj khov. Ib daim duab lossis duab thaij nyob rau lub sijhawm yuav pab koj kom raug zoo ib feem tshiab yam tsis tas yuav nkag mus rau cov ntsiab lus ntawd.
