Tsev > Exhibition > Ntsiab lus

Kev paub kho LCD

Aug 14, 2017


1. Lub tshuab siv hluav taws xob tsis muaj hluav taws xob, qhov no yog ib qho yuav tsum tau hais tias kev txhaum yooj yim heev, kev nthuav dav LCD duab txuas zog thiab lwm lub hwjchim ntawm ob hom, ntau hom sab nraum lub tshuab. Txawm tsis muaj lub hwjchim los, nws cov qauv yog ntau zuj zus tshaj li lub hwjchim ntawm CRT zaub, thiab qhov seem uas tsis zoo yog feem ntau cov khoom me me, xws li kev ruaj ntseg tube, lub tswv yim inductor, tus kav hlau, zener diode, thiab lwm yam. Cov teeb meem yog vim los ntawm lub zog kuj tsawg kawg CPU motherboard tsis pib, qhov no ntawm qhov tseeb, txoj cai tseem yoojyim, yog CPU los ntawm cov tswj lub ntsiab lus tswj, thiab lub teeb liab tswj tawm ntawm CPU tsav fais fab kev hloov ua ke hauv kev ua haujlwm.

2. qhov screen tsis kaj lug, tab sis lub zog qhia tau ib txwm yog qhov kaj. Qhov teeb meem no feem ntau yog tshwm sim los ntawm qhov tsis pom kev zoo siab. Nws yog qhov kev txiav txim ntawm kev tiv thaiv Circuit Court. Hauv qhov no, qhov dav LCD npo tshwm, thiab txoj kev nrhiav yog "squint". Lub ntsiab lus tseem ceeb ntawm kev kho dua yog kev kho qhov sib txawv. Vim hais tias tam sim no tus tsim lub vaj huam sib luag hauv LCD feem ntau yog cov qauv tsim, thiab ob sab ntawm qhov phem yuav tsis yog qhov pib. Feem ntau, lub tshuab qub yog ib qho yooj yim rau teeb meem yog lub tshuab tsim tawm thiab cov tshuab raj, qhov kev tiv thaiv kev tiv thaiv tshiab thiab qhov teeb meem muaj ntau dua.

3. Cov kab hauv kab los yog kab ntawm qhov teeb meem, kev tsis ua hauj lwm ntawm lcd. Bright line fault yog feem ntau cable txuas nrog lub kua siv lead ua kua tshuaj yog feem ntau qhov teeb meem uas zais lub vijtsam tso tawm mus rau lub cev, ob qho teeb meem saum toj no yeej yog muab lub tshuab tua kab lus, tsis muaj txij nkawm tus nqi, vim hais tias ib qho ntawm daim tshev nyiaj siab dhau lawm.

4. Huaping los yog dawb ntawm qhov teeb meem no feem ntau yog qhov dav hlau qhov hluav taws xob yog tawm ntawm cov lus nug, yog hais tias lub vijtsam tsav tsheb nyob rau hauv lub motherboard, nws yuav tsum yog lub niam txiv tsis ua hauj lwm, yog hais tias lub vijtsam cov vijtsam hauv npo LCD, raug hloov, kev saib xyuas ntawm kev pheej hmoo siab.

5. xim yuam kev feem ntau yuav hloov kho rau kev txij nkawm.

6. lwm txoj kev cuam tshuam tsis tshua muaj tshwm sim: nyob hauv ntau hom kev ua haujlwm, tus LCD yuav tshwm sim ib qho kev cuam tshuam, feem ntau lawv yog qhov phenomenon, ib txhia yog coj tuaj rau hauv Circuit Court. Vim hais tias muaj tus lej tshwj xeeb ntawm LCD, qhov teeb meem tau pom nyob rau hauv tus qauv ua haujlwm yuav raug suav hais tias tsis ua haujlwm. Dej siv lead ua kua dej ua ke muab faib ua plaub yam: 1. Cov khoom siv hluav taws xob: qhov no yog qhov yooj yim tshaj, tab sis kuj muaj ntau heev, hom kev kho mob, feem ntau ntawm cov khoom. 2. High voltage lub rooj tsavxwm: qhov tseeb yog ib qho hluav taws xob rectifier, qhov teebmeem yog kev hloov theem siab-up thiab tswj kev sib tsuam. Kev siv hluav taws xob input, 12V ncaj hwj huam, lwm 5V ntawm lub motherboard, muaj lub teeb ci ntsa iab, qhov ntawm lub tshuab muaj hwj huam tiv thaiv tswj, ntawm CPU, yog kev tswj tsis muaj nyiaj. Lub rooj teeb tsa kev teeb tsa kev sib tw: muaj 3 qhov tseem ceeb, CPU, hloov khoom siv hluav taws xob, tawm tswv yim teeb meem kev sib xyuas, kev kho thiab VCD motherboard yeej zoo tib yam (kuv xav tias), qhov yooj yim yog tocag, hluav taws xob, thaj pawg hluav taws xob qis, tsawg tshaj yog cov ntaub ntawv kev nco, kev teeb liab nrog ua qhov kev puas tsuaj ntawm Circuit Court thiab lwm yam. 4. qhov tseem ceeb tshaj plaws ntawm kev txij nkawm - nws lub LCD screen, ntawm chav kawm, qhov nyuaj, tab sis kuj tseem txaus ntshai. Cov txheej txheem siab rau kev txij nkawm.