Txhua cov txheej txheem, txawm tias qhov kev ntseeg siab tshaj plaws, nyiam tawg. Txawm li cas los xij, yog tias tus neeg ua si dheev nres ua haujlwm lossis qee qhov teeb meem tshwm sim, ua ntej yuav ib tus neeg ua si tshiab, koj yuav tsum kho lub DVD. Yog tias nws yog cov cuab yeej saum toj kawg nkaus uas muaj ntau yam nta, nws yuav tsim nyog rov kho dua.
Ntawm cov teeb meem ntawm cov neeg ua si niaj hnub no, feem ntau muaj qhov tsis zoo hauv kev ua si disc, nrog rau kev ua tsis tiav ntawm kev tso tseg vim muaj kev cuam tshuam ntawm laser nyeem ntawv thiab diode. Lub sijhawm lav ntawm cov khoom no yog 3 xyoos, tom qab ntawd cov chaw tsim khoom tsis tuaj yeem cog lus tias nws ua haujlwm li qub.
Kho cov DVD-players nrog xws li kev tawg yog ua los ntawm tsuas yog hloov qhov ua tsis tiav. Cov txheej txheem no yooj yim heev rau txhua tus kws tshaj lij tshwj xeeb, txawm li cas los xij, nws yuav tsum tau muab sau tseg tias kev kho DVD nrog tus nyeem ntawv tawg yuav hloov pauv cov khoom seem nrog cov qub lossis lawv cov analogues tiav. Txwv tsis pub, tus neeg ua si yuav ua tsis tau sai dua.
Ib yam ntxivib qho teeb meem tshwm sim yog ib tug tawg spindle tsav (qhov no yog lub cev muaj zog uas ncaj qha spindle DVD nyob rau hauv lub tsav). Koj tuaj yeem paub txog qhov kev puas tsuaj tib yam li qhov tsis ua haujlwm ntawm tus nyeem ntawv laser: los ntawm qhov tshwm sim tsis tu ncua ntawm qhov hu ua "freeze frames". Txhawm rau ua yeeb yaj kiab tsis muaj kev cuam tshuam, koj xav tau ib qho kev sib hloov ntawm lub disk. Qhov xwm txheej tseem ceeb no tuaj yeem cuam tshuam los ntawm kev cuam tshuam luv luv hauv lub cev muaj zog winding.
Thaum hu rau kev kho DVD players nrog cov teeb meem zoo sib xws, ua ntej ntawm txhua tus nug yog tias tus kws tshaj lij yuav kho qhov siab ntawm lub platform uas muab tso rau disc. Yog tias cov lus teb tsis yog thiab tus tswv tab tom yuav yooj yim hloov lub cav yam tsis tau hloov kho dab tsi, nws yog qhov zoo dua los hu rau lwm qhov chaw pabcuam. Txhua tus kws tshaj lij paub txog tias muaj qee qhov kev ncua deb ntawm lub platform thiab lub taub hau nyeem ntawv, uas yuav tsum tau ua raws li txhawm rau tsom rau lub laser ntawm lub disk. Yog tias koj tsuas hloov lub cev muaj zog thiab tsis teeb qhov sib nrug ntawm cov khoom no, koj yuav xav tau kho lub DVD dua sai sai.
Feem ntau cov processor chips uas txiav txim siab video thiab suab tsis ua haujlwm. Kev tawg ntawm tus tsav tsheb microcircuits kuj tsis yog qhov tsis tshua muaj. Cov cuab yeej no saib xyuas qhov ceev ntawm lub tshuab tsav tsheb thiab tseem tswj xyuas lub taub hau nyeem. Qhov laj thawj ntawm qhov ua tsis tiav yuav yog overheating vim tsis muaj qhov cua hauv rooj plaub. Yog tias koj lub cuab yeej tsis tig lub disc, thiab cov ntawv qhia zaub mov tsis ua haujlwm, koj yuav tsum kho lub DVD tam sim ntawd. Koj tuaj yeem kho nws los ntawm kev hloovtawg chips lossis firmware.
Txawm li cas los xij, koj yuav tsum hu rau cov kws tshaj lij uas muaj kev kawm tsim nyog thiab kev paub txaus. Thaum hu rau lub chaw pabcuam, nco ntsoov xyuas qhov tsim nyog, nrog rau cov ntawv pov thawj ntawm cov masters ua haujlwm nyob rau ntawd. Ua tib zoo saib seb cov khoom seem twg yog siv thaum kho. Tsuas yog cov thawj coj tau pom zoo.
