A. ukulungisa i-LCD kufuneka ifunde ukumisela ukuba yeyiphi inxalenye ephosakeleyo, eli linyathelo lokuqala.Oku kulandelayo kuya kuthetha ngezona mpazamo ziphambili kunye nenxalenye yesigwebo sikamabonakude weLCD.
I-1: akukho mfanekiso akukho sandi, isibane samandla sidanyaza kwisibane esingaguqukiyo, isikrini sidanyaza isibane esimhlophe ngexesha lombane.Oku kusilela ikakhulu kumonakalo webhodi yomqhubi we-backlight.Kodwa kwakhona wadibana nokugcinwa kwesikrini na umonakalo isibane.
2: Emva kwexesha lamandla kwisikrini (i-mosaic), isandi siqhelekileyo.Lo mcimbi ungowokuqala yibhodi yedijithali embi (ngaphaya komngxuma awusebenzi okanye uqhagamshelwano lwe-IC alulungile).Okwesibini luqhagamshelwano olubi ngaphakathi koqhagamshelwano lomatshini.
3: ibhuthi yesithathu hayi, isibane samandla asikhanyi.Eyokuqala ibhodi yamandla embi, okwesibini inxalenye ye-CPU yomsebenzi ayiqhelekanga.
I-4: ukukhanya okudanyazayo akukwazi ukuvulwa: Umsebenzi webhasi ye-CPU awuqhelekanga okanye inkqubo yokuqalisa i-IC (BIOS) imbi, "i-BIOS" IC kunye noqhagamshelwano olubi phakathi kwe-CPU.
I-5: ubushushu obuphezulu: sibona umatshini kwikhaya lomthengi alikho ngaphezu kodonga olunyuswe kunye nohlobo lwe-pedestal ezimbini zokubeka, kodwa ukujonga kwam, imodeli efanayo kunye nexesha lokuthenga umatshini ofanayo, umatshini oxhonywe eludongeni kunethuba lokusilela. yohlobo pedestal, kunye nokusilela efanayo kwakhona ekuqaleni kweminyaka 1-2, ngoko kubonakala, inxulumene lobushushu, kulo mzekelo, ndalungisa umatshini uya kufakwa abalandeli ezimbini computer ukuqinisekisa ukuba ixesha iwaranti akayi kuba ngenxa. kubushushu obuphezulu kwaye ubuyele ukulungisa.
I-6: ukuxhathisa ukubola: ukongeza kwiholo yekonsathi ekhankanywe ngasentla, kufuphi nomatshini wekhitshi kunezinye izinga lokungaphumeleli komatshini, kwaye iingxaki zabo zivela kwi-corrosion ye-metal surface phakathi kwezihlanganisi, kwaye zikhokelela kwiliso eliphindwe kabini lobhedu. i-corrosion, umthombo wale nto, ngokuqinisekileyo, ingxaki yomgangatho womoya, ukulungiswa kwale meko, ndisebenzisa indlela yokutywinwa ngegrisi ye-silicone ehambisa ukushisa kwaye ayichaphazeli ukutshatyalaliswa kobushushu, ngokuqinisekileyo, izihlanganisi. Intsimbi kufuneka isetyenziswe ngerabha ukuze isetyenziswe ecocekileyo.
I-7: Phantse yonke isikrini iya kubonakala ibhendi emnyama, ingxaki yomgca oqaqambileyo, ukulungisa le mpazamo kuqala ukuba ibe neemeko zokulungisa, emva kokugqitywa kokulungiswa uzame ukusebenzisa igrisi eshushu efakwe amanqaku amaninzi kwimodyuli ye-COF IC kuba le ngxaki nayo ibangelwa. ngeqondo lobushushu.
Ukusilela okuqhelekileyo kwe-TV ye-LCD kunye neendlela zokulungisa (i-LCD ye-TV yeentsilelo eziqhelekileyo ezilishumi)
Okwesibini, umatshini oqhelekileyo kunye nesiphoso kunye neendlela zokusombulula ingxaki
I-1: Njengoko kukhankanyiwe ngasentla, ingxaki yesikrini (ibhendi emnyama, umgca oqaqambileyo) iyona nto ininzi, le meko ngokuqhelekileyo ngokungabikho kweemeko zokulondoloza ayikwazi ukwenza, kuxhomekeke kuphela kwitheknoloji kunye neemeko zokugcina.
2: Izixhobo zesikrini ze-LG zebhodi ye-buffer idla ngokuba ziindawo ezimbi zento egcwele ngamanqaku ekhusi aneengxubevange, kodwa kwakhona ezinye zigcwele imivalo ethe nkqo eqhelekileyo, oku kusilela kunokubuyisela iperi yebhodi ye-buffer (nokuba icala elibi, kodwa kananjalo ukuthenga iperi yabantu akuzukuthengisa nokuba ibe nye kuwe) okanye ulinganise ukuba leliphi iqhekeza le-IC elibi, libuyisele endaweni yalo.
I-3: Kungakhathaliseki ukuba yiyiphi isikrini, ibhodi ye-Y kumatshini we-PDP ngaphakathi kwamathuba okubi okubalwe okwesibini, ibonakaliswe ngokubanzi emva kokuba isiganeko sisikrini, sigcwele amachaphaza ombala, okanye ngenxa yesiphaluka esifutshane kunye nokukhusela amandla, i-VS. okanye i-VA yombane ngoko nangoko, kodwa hayi ukuya kuthi ga kwixabiso le-voltage yesikrini yetafile ecacileyo ukuba kutheni kulula ukuya kubi, andisazi isizathu.
I-4: Ibhodi ye-X ikwangumatshini we-PDP kaninzi amacandelo amabi, ukusebenza kwawo ekukhuselweni kwe-boot (isikrini se-Fujitsu ikakhulu), kunye nobumnyama obukhanyayo.
I-5: Izinga lokungaphumeleli kwebhodi ye-logic ayikho phantsi, kwi-PDPLCD ixhaphake kakhulu, ukusebenza kwayo kuninzi ukukhanya kwesikrini, kodwa akuyi kubakho abalinganiswa, akukho mfanekiso, okanye imifanekiso engafanelekanga umbala we-chaotic, ukungabikho kombala, umfanekiso ongalunganga, njl. Ezinye azinakuvulwa.
I-6: I-LCD yokusilela okuqhelekileyo ziingxaki zesikrini, iibhendi ezimnyama, imigca, yeyona ixhaphakileyo, ezi zisisiseko zinokushwankathelwa njengeengxaki zesikrini, ezinye zibe neemeko zokulungisa ukulungisa, ezinye ngenxa yobushushu obuphezulu, okukhokelela kwiCOF kunye noqhagamshelo lwesikrini. inqaku le-ACF kule nto inokulungiswa ngentsimbi ecangcileyo ezantsi kwendlela yokufakelwa kwe-pad eshushu.
I-7: Umshini we-LCD, icandelo lesikrini se-inverter circuit (ibhodi ephezulu ye-voltage) yindawo ephosakeleyo, ebonakaliswe njengokukhanya, kodwa akukho kukhanya, kodwa kukho isandi, (ngaphandle kwe-SHARP), kodwa ukuguga ityhubhu yokukhanya. kunye nomonakalo uya kukhokelela ekukhuselweni kwebhodi ye-voltage ephezulu, ukugqiba ukuba ityhubhu yokukhanya okanye ibhodi ye-high-voltage ngokwayo imbi, ukupheliswa kwebhodi ye-high-voltage kwi-avareji yexabiso lokuthelekisa i-feedback circuit.
I-8: Abahlobo abaninzi babuza indlela yokugcina i-LCD ye-SHARP, ngokwenene, kunye ne-LCD eqhelekileyo ifana nokufaka imenyu yokulungisa, unokubona izinto eziphosakeleyo kukho iikhowudi eziphosakeleyo, ezinye ngokuthe ngqo kwikhowudi zero, ezinye kufuneka zilungise okuhambelanayo. iindawo zempazamo.
Okwesithathu, LCD TV backlight common fault judgement
1. i-backlight kumbane we-AC-on-instant LCD ukukhanya kwesikrini kancinci, ngeli xesha, isandi esikhaphayo, ulawulo olukude, imisebenzi yokulawula iqhosha lepaneli iyinto eqhelekileyo Le nto ibangelwa ukukhuselwa kwesekethe yokukhanya, isizathu sokunyusa i-backlight booster. unikezelo lwamandla ebhodini olungaqhelekanga lwesekethe yombane weCCFL, ukuba i-backlight ityhubhu evulekileyo yesekethe (eqhelekileyo kwi-backlight booster board isibane socket solder evulekileyo okanye i-socket ayifakwanga ngokuqinileyo ebangelwa ukhuseleko lwesekethe) okanye Isibane esaphukileyo sinokubangela ukusilela okungentla.
2. i-backlight switch akukho tshintsho, kunye nesandi, isilawuli kude, ulawulo lweqhosha lephaneli ziqhelekileyo le mpazamo kufuneka ibone ezi meko zokusebenza zilandelayo.
(1).Ubonelelo lwamandla esekethe ye-backlight booster, isikrini esikhulu esiqhelekileyo se-24 volts, simbalwa kakhulu esine-volts eziyi-120, isikrini esincinci siqhele ukuba yi-12 volts.
(2).i-CPU yolawulo lwesekethe ye-backlight booster ibhodi ye-oscillator yomsebenzi wokutshintsha umqondiso wolawulo, oqhelekileyo kwinqanaba eliphezulu lokuqalisa, ngaphezulu kwe-3V-5V isignali yokulawula isibane sokukhanyisa ukuba iimeko zokusebenza zingentla ziyafumaneka, ngoko ungathatha indawo yebhodi ye-backlight booster, ukuba i-backlight booster yokubuyisela ukusilela kwebhodi njengasekuqaleni, ikakhulu kumacandelo esikrini se-LCD kumonakalo wetyhubhu yokukhanya.
3. xa ukukhanya kwe-backlight kukhanya kwaye kungakhanyi, kuqhelekile ukuba isibane sesibane sebhodi ye-backlight booster sinonxibelelwano olubi kunye nesibane, kwaye umbane we-backlight uphezulu okanye uphantsi.
Ixesha lokuposa: Aug-04-2022