TV Repair ngezandla zabo - ngaba kunokwenzeka?

Ukuza kuthi ga ngoku, ukhetho uncwadi ngesihloko "TV Repair izandla zabo" omkhulu. Ukongeza, i-Internet unako ukufumana tutorials okanye iincwadi ngalo mba.

Akubuzwa ukwenza nomabonakude ukulungisa LCD ngezandla zabo, kuya kufuneka ubuncinane ulwazi abanye elektroniki. Kuyimfuneko ukuba ukuphelisa nantoni ezinokusongela ukhuseleko kwakho kunye nokhuseleko abo ubathandayo.

TV nganye uneempawu zawo, nto leyo ibalulekileyo nokulungiswa kwayo. Ngoko ke, le ndlela yokufumana isiphoso esokuba ngamnye.

Gqiba xa kwabonakala ingxaki kwaye libekwe ngayo. Ngamanye amaxesha le ngxaki ukuze isekelwe izihlanganisi kakubi ifakiwe, iintambo zombane imbi, echachambileyo, otshiswayo okanye nje inxalenye eyaphukileyo.

njani ukuba bayihlaziye TV ngokwakho?

Techniques ofumana ikhwiniba

Ukuxazulula kunokwenzeka phakathi imizuzu, kodwa kube nzima ukuzibona. Injongo yeli nqaku kukucacisa iindlela diagnostic izixhobo TV mihla.

Ukuqalisa. ... Kutheni?

ukuqala Apho yokulungisa shini ngezandla zabo?

Ngaloo iimeko, xa TV yi "ufile" konke konke, oko kukuthi, mayingabi sakhululwa guququ, kunzima kakhulu ukufumana ityala lethu. Kodwa kufuneka ngokukhawuleza kangangoko ukufumana siphene kuye kwavela, waza ke omnye, kunye nokuphelisa oko kamsinya kangangoko kunokwenzeka.

Ukususela ecoca TV. Okokuqala ekucoceni istili; kwandule ke komhlaba CRT kunye ikhadi receiver. Sisenza loo isicoci emoyeni kunye ibrashi. Ukungaqheleki kungabonwa kwangoko, ukuba ufumane resistors zalaba, iitshiphusi capacitors idumbe, itshiswe-out kunye transistors. Ukuba ngexesha yokucoca kinescope ubona ezimhlophe endaweni iselwa ngaphaya, oko kuthetha ukulahlekelwa cleaner.

Khangela unikezelo lwamandla

Into yokuqala ukujonga ukuba ukusebenza umbane. Indlela ukukwenza oko? Ukuqala lokuqhawula umthwalo xhuma i isibane zigqengezelayo. Ukuba ombane okulo ngaphantsi kwe-110 V, kuphothulwe ukuba unikezelo amandla esingasebenziyo. Emva koko khangela iyunithi sombane, ngoko ke capacitor filter, ogama ombane kufuneka ibe malunga nama-160 V. Emva ombane umcephe iya kwimveliso sigaba. Kuyimfuneko ukuba unsolder ziliminxe okanye fuse ngaloo zokuqhawula ubonelelo amandla ukusuka scan emgceni. Layisha kuyi sebenzisa i isibane yale igqengezelayo, oludityaniswe ngaxeshanye kunye capacitor.

Ukuba kona isiqalelo eziphicothiweyo, filament isibane ombane tsakisi. Ngokufanayo khangela capacitor filter, iziphaluka igalelo, kwaye transistor network rectifier. Ukuba zigqengezelayo ukukhanya oluvula luvaleke nangaphandle, okanye iya enorhatyazo izibane, umbane kusenokwenzeka sinesiphene. Ngoko ke ukubambelela iitshekhi ngaphandle kokusebenzisa ibhalbhu ezingqengezelayo.

Emva koko balinganise ombane phesheya umthwalo xa network supply amandla. Ukuba le ombane ungaphezu 130-150 B, kufuneka ithunyelwe yiyunithi wesekethe zaseprayimari. Phawula capacitance. Ukuba sele wehlile, le ombane kuya kuba ngaphezu ixabiso sikhundla. Ngokwahlukileyo koko, ukuba ombane na ngaphantsi kunesiqhelo, khangela isiphaluka yesibini. Ngoko ikwi indlela yakho ukwenza ukulungisa kamabonakude ngezandla zakhe.

Inyathelo elilandelayo - hlola othe tye

Ukuba umbane KULUNGILE, khangela imveliso ibakala le scan ngelayini usebenzisa i isibane zigqengezelayo. Ukuba nqanaba yemveliso sinesiphene, kuya bokugcinwa zonke isiphumo esifanayo isibane - iza kuba kukukhanya tyhafi sivala vula iphinde ivale.
Transistor ezixabisa uhlola nje xa kunokwenzeka, ukuba isibane kuvutha kucinywa. Ukuba kulungile, kwaye ombane iphantsi, qinisekisa ukuba pulses ulawulo kwi ndawo. Ukuba izibane isibane phezulu kwaye ungaphumi uye kwaye yunithi bukele, ityala mhlawumbi jiko asezantsi. Zama zokuqhawula coil kwaye uvula TV. Ukuba idityanisiwe, ngoko ingxaki kufuneka wafuna kwinkqubo aphambuke. Ukuqinisekisa inkqubo aphambuke nandzu nga azise ziyalungiswa. Kulo mzekelo, i-TV uphendulela ixesha elifutshane, ukwenzela ukuba angayitshisi kinescope.

Ingongoma kwi scan kwisakhelo

Ukuba ubona nisishiye tyaba, ukuskena umgca ukuze. Le ngxaki kufuneka kucelwa abasebenzi. Okokuqala, khangela iqonga imveliso kunye generator. Ukuba ombane yabo ngaphantsi kwe-24, ngoko ke unobangela isiphoso eya kufunyanwa kuzo. Ukuba ke kokuphazamiseka okanye yokuwa kwi diode rectifier kufuneka endaweni coil eziphosakeleyo kulo msebenzi.

Khangela wesekethe unikezelo amandla ithumbu picture

Ukuba iskrini akuthethi zikhanyisa xa iyunithi ukuskena olululo kunye unikezelo lwamandla, khangela isidima vulu umfanekiso tube ntambo. Mhlawumbi ezisikwe asuswe ngoncedo uphawu.

Yintoni kufuneka ifune ukuba le ngxaki?

Ukuba akukho mfanekiso, akukho sandi, ingxaki kakhulu mhlawumbi isitishi serediyo. Ukuba akukho mfanekiso, kodwa kukho isizathu esivakalayo kufuneka kucelwa umbala kwibhloko okanye lo mshini yevidiyo. Ukuba kukho isandi kodwa akukho mfanekiso, isizathu lo msindo ephantsi rhoqo okanye ividiyo. Ukuba kukho isandi kunye nomfanekiso, khangela unobangela kwi esakhelwe okanye igiza yayo.

ingqalelo ekhethekileyo kufuneka ihlawulwe kwi-unit yolawulo. Ukuyivavanya, sebenzisa i data yesalathisi, okanye schema kumqhubekekisi. Zingakotshwa ngekhompyutha kweli ziko lewebhu lomenzi.

Eli nqaku liqulathe kuphela inxalenye encinane iimpazamo ukuba ingasombululwa ngokuzimeleyo.

TV Repair ngezandla zakho eyokungabi kunye noxanduva. Ke ukuba uthe wakha wathandabuza ukuba ngephanyazo esiya kuba nako ukwenza ngokwakho, funa uncedo lobungcali.