A. ukulungisa i-LCD kufanele ufunde ukunquma ukuthi iyiphi ingxenye enephutha, lesi isinyathelo sokuqala.Okulandelayo kuzokhuluma ngamaphutha amakhulu kanye nezingxenye zesahlulelo se-LCD TV.
1: asikho isithombe asikho umsindo, isibani samandla sibaneka ekukhanyeni okuqhubekayo, isikrini sikhanyisa ukukhanya okumhlophe ngesikhathi sokukhanyisa.Lokhu kwehluleka kuwumonakalo omkhulu webhodi lomshayeli we-backlight.Kodwa futhi wahlangana nokugcinwa kwesikrini umonakalo isibani.
2: Ngemva kwesikhathi samandla esikrinini (i-mosaic), umsindo ujwayelekile.Lesi simo singesokuqala ibhodi ledijithali elibi (ngaphezu kwembobo akusebenzi noma ukuthintana kwe-IC akukuhle).Okwesibili othintana naye omubi ngaphakathi koxhumo lomshini.
3: ibhuthi yesithathu cha, isibani samandla asikhanyi.Eyokuqala ibhodi lamandla elibi, okwesibili ingxenye ye-CPU yomsebenzi ayijwayelekile.
4: ukukhanya okukhanyayo akukwazi ukuvulwa: Umsebenzi webhasi le-CPU awuvamile noma uhlelo lokuqalisa lwe-IC (BIOS) lubi, i-“BIOS” IC kanye nokuxhumana okubi phakathi kwe-CPU.
I-5: izinga lokushisa eliphezulu: sibona umshini ekhaya lekhasimende ungaphezu kokubekwe odongeni kanye nesisekelo sokubeka okubili, kodwa ukubonwa kwami komuntu siqu, imodeli efanayo nesikhathi sokuthenga umshini ofanayo, umshini obekwe odongeni kunethuba lokwehluleka. yohlobo lwezinyawo, kanye nokwehluleka okufanayo futhi ekuqaleni kweminyaka engu-1-2, ngakho-ke kubonakala sengathi kuhlobene nezinga lokushisa, kulokhu, ngilungise umshini uzofakwa abalandeli ababili bekhompyutha ukuze kuqinisekiswe ukuthi isikhathi sewaranti ngeke siphumelele. kumazinga okushisa aphezulu bese ubuyela ekulungiseni.
I-6: ukumelana nokugqwala: ngaphezu kwehholo lekhonsathi elishiwo ngenhla, eduze komshini wekhishi kunezinga lokuhluleka kwemishini, futhi izinkinga zabo zitholakala ekugqwaleni kwendawo yensimbi phakathi kwezixhumi, futhi ziholela ngisho nasesosweni lethusi elizinhlangothi zombili. ukugqwala, umthombo walesi simo, yiqiniso, inkinga yekhwalithi yomoya, ukulungiswa kwalesi simo, ngisebenzisa indlela yokufaka uphawu nge-silicone grease ehambisa ukushisa futhi akuphazamisi ukuchithwa kokushisa, yiqiniso, izixhumi. Insimbi kufanele ifakwe ngerabha ukuze isetshenziswe ihlanzekile.
I-7: Cishe sonke isikrini sizovela ibhande elimnyama, inkinga yomugqa okhanyayo, lungisa leli phutha kuqala ukuze ube nezimo zokulungisa, ngemva kokuphothulwa kokulungiswa zama ukusebenzisa amafutha ashisayo ahlanganiswe ngamaphuzu amaningi ku-COF module IC ngoba le nkinga nayo ibangelwa ngezinga lokushisa.
Ukwehluleka okuvamile kwe-LCD TV nezindlela zokulungisa (i-LCD TV ukwehluleka okuyishumi okujwayelekile)
Okwesibili, umshini ovamile kanye nesenzakalo sephutha nezindlela zokuxazulula izinkinga
I-1: Njengoba kushiwo ngenhla, inkinga yesikrini (ibhande elimnyama, umugqa okhanyayo) yiyona kakhulu, lesi simo ngokuvamile singekho izimo zesondlo asikwazi ukwenza, sithembele kuphela kubuchwepheshe kanye nezimo zokugcinwa.
2: Izingxenye zesikrini ze-LG zebhodi le-buffer ngokuvamile ziyizingxenye ezimbi zento egcwele amaphuzu esikrinini axubile, kodwa futhi ezinye zigcwele imigoqo eqondile evamile, lokhu kwehluleka kungathatha indawo yebhodi le-buffer (ngisho noma uhlangothi olubi, kodwa futhi ukuthenga ipheya labantu ngeke kukuthengisele eyodwa) noma ulinganise ukuthi iyiphi isiqephu se-IC esibi, buyisela esingaba.
3: Kungakhathaliseki ukuthi yisiphi isikrini, ibhodi le-Y likumshini we-PDP ngaphakathi kwamathuba okubalwa okubi okwesibili, ngokuvamile konakaliswa ngemva kokuba isenzakalo siyisikrini, sigcwele amachashazi ombala, noma ngenxa yesifunda esifushane nokuvikelwa kwamandla, i-VS. noma i-VA voltage ngokushesha, kodwa hhayi kuze kufike enanini le-voltage yesikrini yetafula eliqondile ukuthi kungani kulula ukuya kumbi, angazi isizathu.
4: Ibhodi le-X liphinde libe umshini we-PDP ovame ukuba yizingxenye ezimbi, ukusebenza kwawo kokuvikela ibhuthi (isikrini se-Fujitsu ikakhulukazi), nokukhanya kumnyama.
5: Izinga lokuhluleka kwebhodi le-logic aliphansi, ku-PDPLCD zivame kakhulu, ukusebenza kwayo ikakhulukazi ukukhanya kwesikrini, kodwa ngeke kube khona izinhlamvu, akukho sithombe, noma ukungahambi kahle kwesithombe umbala wesiphithiphithi, ukuntuleka kombala, isithombe esibi, njll. Okunye akukwazi ukuvulwa.
6: Ukwehluleka okuvame kakhulu kwe-LCD yizinkinga zesikrini, amabhande amnyama, imigqa, ivame kakhulu, lezi eziyisisekelo zingafingqwa njengezinkinga zesikrini, ezinye zibe nezimo zokulungisa ukulungisa, ezinye ngenxa yokushisa okuphezulu, okuholela ku-COF nokuxhumeka kwesikrini. iphuzu le-ACF kule nto lingalungiswa ngensimbi eyisicaba ngaphansi kwendlela yokushisa ye-pad insulation media.
7: Umshini we-LCD, ingxenye yesikrini inverter circuit (high-voltage board) iyizingxenye ezinephutha, ezibonakaliswa njengokukhanya, kodwa akukho ukukhanya okwesikhashana, kodwa kunomsindo, (ngaphandle kwe-SHARP), kodwa ukuguga kweshubhu elikhanyayo. futhi umonakalo uzoholela ekuvikelweni kwebhodi le-voltage ephezulu, ukuze kunqunywe ukuthi ithubhu yokukhanya noma ibhodi le-voltage ephezulu ngokwayo libi, ukuqedwa kwebhodi le-high-voltage ngenani elilinganiselwe lesekethe yempendulo yokuqhathanisa.
I-8: Abangane abaningi babuza ukuthi ungayigcina kanjani i-SHARP LCD, empeleni, futhi i-LCD evamile ifana nokufaka imenyu yesondlo, ungabona izinto zephutha kukhona amakhodi wephutha, amanye ngqo kwikhodi zero, abanye kufanele balungise okuhambisanayo. izingxenye zephutha.
Okwesithathu, i-LCD TV ikhanyisa i-backlight common fault judgement
1. i-backlight ku-AC power-on instant LCD ikhanyisa kancane isikrini, ngalesi sikhathi, umsindo ohambisana nawo, isilawuli kude, imisebenzi yokulawula inkinobho yephaneli ijwayelekile Lesi sigameko sibangelwa ukuvikelwa kwesekethe ye-backlight, isizathu se-backlight booster ukunikezwa kwamandla ebhodi okungavamile kwesekethe ye-backlight ye-CCFL, uma i-backlight tube evulekile isekethe (evamile yesibani se-backlight booster board socket solder evulekile noma isokhethi ingafakwanga ngokuqinile okubangelwa ukuvikelwa kwesifunda) noma Isibani esiphukile singabangela ukwehluleka okungenhla.
2. I-backlight switch ayishintshi, ngomsindo, isilawuli kude, isilawuli senkinobho yephaneli kuvamile leli phutha lidinga ukuthola izimo zokusebenza ezilandelayo.
(1).i-backlight booster circuit power supply, isikrini esikhulu esivamile sama-volts angu-24, simbalwa kakhulu esinama-volts angu-120, isikrini esincane ngokuvamile singama-volts angu-12.
(2).i-CPU control circuit okukhipha i-backlight booster board oscillator isiginali yokulawula ukushintsha, evamile ekuqaleni kwezinga eliphezulu, isignali yokulawula ukukhanya kwesibani engu-3V-5V ngaphezulu uma izimo zokusebenza ezingenhla zitholakala, khona-ke ungakwazi esikhundleni sebhodi le-backlight booster, uma i-backlight booster yokufaka esikhundleni. ukwehluleka kwebhodi njengasekuqaleni, ikakhulukazi ezingxenyeni zesikrini se-LCD emonakalweni weshubhu le-backlight.
3. lapho ukukhanya kwe-backlight kukhanya futhi kungakhanyi, kuvamile ukuthi isibani sesibani sebhodi le-backlight booster linokuxhumana okungalungile nesibani, futhi ukunikezwa kwamandla kwe-backlight kuphezulu noma kuphansi.
Isikhathi sokuthumela: Aug-04-2022