Ezi ntsilelo zineepateni, kwaye uninzi luxilonga kwimizuzu engama-30 okanye ngaphantsi. Esi sikhokelo sakhiwe malunga nendlela osebenza ngayo ingxaki: ukuqala kwinto oyibonayo kwiscreen, emva koko usebenze umva ukuya kwisizathu. Nokuba uyagcinaizikrini ze-LCD zokurhwebakwintengiso, sebenzisa iiphaneli kwiikhiyoski zikawonke-wonke, okanye debug embedded hardware ngexesha lophuhliso, inkqubo yoxilongo iyafana.
Quick Symptom Reference
Sebenzisa le theyibhile njengesihluzo sakho sokuqala. Izizathu ezininzi zinokuvelisa uphawu olufanayo, ngoko luphathe njengesikhokelo sokuqala, hayi impendulo yokugqibela.
| Uphawu | Okusenokwenzeka Unobangela | Isenzo sokuqala |
|---|---|---|
| Isikrini esimnyama ngokupheleleyo, akukho sibane sangasemva | Ukungaphumeleli kwamandla okanye fuse evuthelweyo | Ukulinganisa igalelo lombane kwizikhonkwane zemodyuli |
| Isikrini sivuliwe kodwa mfiliba kakhulu | Ukuthotywa kwe-backlight okanye ukungaphumeleli koluhlu lwe-LED | Vavanya isekethe ye-backlight ngokuzimeleyo |
| Umfanekiso ofileyo ubonakala kuphela ngetotshi | Ukusilela kwesibane esingasemva - indawo yolawulo ngokwayo iyasebenza | Hlola iintambo ze-LED kunye nesekethe yomqhubi |
| Umboniso odanyazayo okanye odanyazayo | Intambo yeribhoni ekhululekileyo okanye i-voltage yonikezelo olungazinzanga | Setha kwakhona zonke iziqhagamshelo; khangela i-ripple yonikezelo |
| Imigca emi nkqo okanye ethe tye kwiscreen | I-substrate eqhekekileyo okanye impazamo yomqhubi we-IC | Ukuhlolwa okubonakalayo; tshintsha ibhodi yomqhubi |
| Abalinganiswa abakhutshiweyo okanye abalahlekileyo | Iprotocol ayihambelani okanye i-firmware bug | Qinisekisa useto lonxibelelwano ngokuchasene nedatha |
| Isikrini esimhlophe esingenamxholo | Ukusilela kokuqalisa okanye ukulahleka komqondiso | Khangela uqwalaselo lweprotocol; qinisekisa ukusetha kwakhona ixesha |
| Umfanekiso wesiporho oqhubekayo okanye utshise-ngaphakathi | Umfanekiso omileyo kwiphaneli yokuguga mde kakhulu | Umjikelo wamandla; sebenzisa i-pixel -ipateni yovavanyo lokuhlaziya |
| Ungeniso lokuchukumisa alubhalisi | Intambo yokuchukumisa eyonakeleyo okanye i-firmware eyonakele | Jonga intambo yeribhoni; kwakhona{0}}i-flash touch isilawuli |
| Ukusetha kwakhona okungahleliwe okanye ukukhwela ibhayisekile ngamandla | I-voltage spike okanye umthamo ongonelanga wangoku | Ukulinganisa ukubonelela nge-oscilloscope; yongeza ukhuseleko lokutya |
Yintoni eneneni ebangela ukusilela kwimodyuli yeLCD?
Ukuthotywa kwesibane sangasemva
Isibane esingasemva sesona sixhaphakileyo sokungaphumeleli kwecandelo elinye-kwimodyuli yeLCD. Uluhlu lwe-LED luba luzizi kancinci kancinci kubomi babo bokusebenza - abavelisi bafanelekela iimveliso ngokuchaseneyoImigangatho yokuvavanya ukuthembeka kwe-semiconductor ye-JEDEC, kwaye ubomi obureyithiweyo buyohluka kakhulu phakathi kweephaneli zebakala -nezinga zoshishino{1}}. Ngalo lonke ixesha ubhekisa kuluhlu lwedatha yemodyuli yakho malunga nobomi bayo benkonzo elinganisiweyo phantsi kweemeko zakho zokusebenza, hayi inani leshishini elenziwe lafana nelo.
Umboniso onesibane esingasemva esonakeleyo usadlula iitshekhi zombane. Indawo yolawulo iyasebenza - ayikwazi nje ukuvelisa umfanekiso ofundekayo ekukhanyeni okuqhelekileyo okujikeleze. Ukuba isikrini sikhangeleka samkelekile kwigumbi elimfiliba kodwa siphantse singabonakali phantsi kokukhanya okuqaqambileyo kweofisi okanye ngaphandle, isibane esingasemva yinto yokuqala yokuvavanya.
⚠️ Impazamo eqhelekileyo:Ukubuyekeza isibane esimfiliba sangasemva ngokutyhala ukuqaqamba ukuya kubuninzi. Oku kukhawulezisa ukunxiba kwe-LED kwaye kwenza bufutshane ubomi obuluncedo obusele busele-ilungu elithotywayo. Ukukhetha ihardware enokukhanya okufanelekileyo kwentloko kwasekuqaleni kuthintela ingxaki ngokupheleleyo - bona ukuba yintoni eyahlulaiimodyuli ze-LCD zentengiso-ukusuka kubathengi-kuluhlu oluzezinye.
Isidibanisi kunye neengxaki zeCable
Iintambo zeRibhoni, izihlanganisi ze-zebra, kunye ne-solder joints zithotywa phantsi kwe-vibration, i-thermal cycling, kunye ne-flex flex. Imowudi yokusilela iphantse yahlala iphakathi: ukuqhwanyaza kwiindlela ezithile zokuma, ukuwisa amacandelo omboniso phantsi kongcangcazelo, okanye isikrini esisebenza ekuqaleni kodwa sisilele kubushushu bokusebenza. Ukuphinda kuhlaziywe sonke isiqhagamshelo phambi koku-odola iinxalenye kusombulula isabelo esibalulekileyo sezikhalazo zentsimi ngexabiso elinguziro.
Uxinzelelo lweNdalo
Ukubanda kuyacothisa ukusabela kwekristale yolwelo; ubushushu bukhawulezisa ukuguga kwe-polarizer kunye ne-adhesive delamination; ukufuma corrodes electrodes ukusuka ngaphakathi, ukuvelisa iisegmenti zokubonisa ezingekhoyo ukuba mandundu ngokuthe ngcembe kwiiveki. Soloko ukhankanya imeko{1}}embi kakhulu, hayi i-avareji. Kwizicelo ezikwiindawo ezifuna amandla,Izisombululo ze-LCD ezihlanganisiweyo ezinemilinganiselo yokusingqongileyo ehambelanayozifanelekile ukuvavanywa phambi kokuthunyelwa, kungekhona emva kokusilela kwintsimi.
⚠️ Impazamo eqhelekileyo:ukuvavanya umboniso kwiimeko zelebhu kwaye ucinga ukuba iya kwenza okufanayo ngaphandle, kwindawo yokugcina impahla ebandayo, okanye kufutshane nomthombo wokufuma - ngaphandle kokuqinisekisa ukuba inqanaba lemodyuli ye-IP yeklasi kunye noluhlu lobushushu ngokwenene luhambelana nendawo yokuthunyelwa.
Imiba yoBonelelo lwaMandla kunye neempazamo zoMqhubi
I-voltage spikes ibangela umonakalo okhawulezileyo we-IC womqhubi. Ubonelelo lwe-ripple - ingxolo ye-AC kumzila kaloliwe we-DC - ibangela umonakalo ofihlakeleyo, owongezelekayo: ukusetha kwakhona okungahleliwe, ingxolo yomfanekiso, kunye nobomi obufutshane be-LED. Jonga idatha yemodyuli yakho ngowona mbane uphezulu uvumelekileyo weripple; akukho mda wendalo iphela osebenza kuzo zonke iindidi zephaneli.
Iibhugi zeFirmware kunye neeprotocol ezingalunganga ziludidi olwahlukileyo olulinganisa ukusilela kwehardware ngokuqinisekisayo. Isikrini esimhlophe okanye imveliso ekhutshiweyo emva kokutshintsha kwebhodi okanye uhlaziyo lwesoftware ihlala iyimpazamo yoqwalaselo, hayi ipaneli eyaphukileyo. Lo mahluko ubalulekile xakuthelekisa iLCD kunye neefomati zebar yebar ye-LED- ubuchwephesha obahlukeneyo buneendlela ezahlukeneyo zokuziphatha zeprotocol kunye nemisayino ephosakeleyo.
AmaNyathelo -eNkqubo yoDiagnostic
Sebenza ngokulandelelana kwazo. Yima kamsinya nje wakuba uchonge isiphene - ngokutshintshela ngokungeyomfuneko ukuchitha ixesha kwaye ungenise izinto ezintsha.
Inyathelo 1 - Uhlolo olubonakalayo phambi kombane{1}}uvuliwe.Jonga iintanda, ukujiya emva kwephaneli, amanqaku atshise kwi-PCB, kunye neentambo zeribhoni ezisusiweyo. Ukuba ufumana umonakalo womzimba, musa ukusebenzisa amandla. Uqhagamshelo olufutshane lunokubangela umonakalo we-cascading obiza kakhulu kunempazamo yokuqala.
Inyathelo 2 - Qinisekisa igalelo lombane.Sebenzisa i-multimeter kwizikhonkwane zokufaka amandla kwimodyuli. Imilinganiselo yombane eqhelekileyo yeephaneli ze-TFT yi-3.3V, 5V, okanye i-12V - khangela idata yakho. Ufundo olungaphezulu kwe-5% ngaphandle luqinisekisa uphando. Ngeziphoso ezimane isenzeka, yongeza i-oscilloscope ukujonga ukubonelelwa kweripple ngokuchasene nenkcukacha ezivumelekileyo zedata.
Inyathelo 3 - Yahlula isibane esingasemva.Kwigumbi elimfiliba, khanyisa isibane kwindawo yolawulo kwi-engile. Ukuba unokwenza umfanekiso obuthathaka, indawo yolawulo iyasebenza kwaye kuphela isibane esingasemva asileleyo. Olu vavanyo lulodwa lususa isiqingatha somthi wokuxilonga ngaphantsi kwemizuzwana eyi-10 - kwaye isebenza ngokulinganayoibha -indlela ye-LCD yokubonisanjengakwiphaneli ezisemgangathweni zoxande.
Inyathelo 4 - Tshintsha iintambo kunye neebhodi ngendlela.Layisha-ipateni yovavanyo elungileyo eyaziwayo. Faka esikhundleni intambo yeribhoni ngeyunithi yokusebenza eqinisekisiweyo. Ukuba iphoso ilandela intambo, intambo yingxaki. Ukuba ihlala nebhodi, ibhodi ilandelayo. Buyisela eyona nxalenye ingabizi kakhulu, eyona ifikelelekayo kuqala.
Inyathelo 5 - Jonga inkqubo yonxibelelwano.Isikrini esimhlophe okanye imveliso egrunjiweyo emva kokutshintshwa kwebhodi phantse isoloko iyimpazamo yoqwalaselo. Qinisekisa izinga le-baud (UART), imo ye-SPI (CPOL/CPHA), okanye idilesi ye-I2C ngokuchasene nedatha yedatha. Eli nyathelo libamba izabelo ezingalinganiyo zeempazamoiindawo zokubonisa ikhiyoskiapho iimodyuli zitshintshwa entsimini, rhoqo ukusuka kuxwebhu olungagqibekanga.
Inyathelo 6 - Phinda kwakhona iimeko zentsimi kwibhentshi.Isiboniso esisebenza kwilebhu kodwa sisilele ekuhanjisweni phantse sisoloko sinengcambu ye-thermal okanye yokungcangcazela. Isidibanisi esinomda kwi-22℃sinokuvula ngokupheleleyo kwi-55 degree. Faka ubushushu obulawulwayo ngexesha lovavanyo lwebhentshi - impazamo ebonakala ngaphezulu kobushushu obuthile ichonga ukwandiswa kwe-thermal njengomatshini ngokuthe ngqo.
Ukulungisa okanye Ukubuyisela? Isakhelo seSigqibo
Ukulungisa kunengqiqo xaimpazamo ibekwe kwindawo enye kwindawo enokuthathelwa indawo enye - intambo, i-backlight array, uhlaziyo lwe-firmware - imodyuli yinxalenye yenkqubo apho ukukhangela ukutshintshwa kubandakanya ukwehla okubalulekileyo okanye ukuyilwa ngokutsha, kwaye iindleko zokulungisa zingaphantsi ngokucacileyo kuneyunithi entsha.
Ukutshintshwa kunengqiqo ngakumbi xaiimpawu ezininzi zivela ngaxeshanye. Ukukhanya kwangasemva okumfiliba, ukunxiba kwesinxibelelanisi, kunye nesiporho somfanekiso ovela kunye sisilathi esithembekileyo sokuphela kobomi benkonzo, hayi impazamo enye enokulungiseka. Ukutshintshwa kwakhona kwenza ingqiqo xa imodyuli yangoku inikezela ngeenkcukacha ezingcono - ukukhanya okuphezulu, ubushushu obubanzi bokusebenza, ukhuseleko olungcono lokungena - oluya kunciphisa umthwalo wolondolozo lwexesha elizayo.
Ngaphambi kokuba uzibophelele kuyo nayiphi na indlela, jonga le mibuzo mihlanu:
- Ngaba le yunithi yokusilela kokuqala, okanye ikhe yasilela ngaphambili?
- Ngaba impazamo iphelele kwindawo enye, enokutshintshwa?
- Ngaba lilonke ixabiso lokulungisa - iindawo, abasebenzi, kunye nexesha lokuphumla - lihlala ngokucacileyo ngaphantsi kweendleko zokubuyisela?
- Ngaba iyunithi elungisiweyo iya kuhlala ngokwenyani ngokwemfuneko yenkonzo eseleyo yenkqubo?
- Ngaba utshintshelo lwangoku lubonelela ngentsingiselo engcono yeenkcukacha zesi sicelo?
Ukuba iimpendulo ezintathu okanye ngaphezulu zikhetha ukutshintshwa, leyo yeyona ndlela icacileyo. Bhrawuza ngokupheleleyouluhlu lwemvelisookanyethetha nengcalimalunga nokukhangela. Ukuthengisa kunye nemixholo yemiqondiso,Ulungelelwaniso lweLCD oluqhelekileyo lweempawu zokuthengisaihlala inika ngcono-uqoqosho lwexesha elide kunokufana ngqo-nokutshintshana{2}}okufana.
ULondolozo oluThintelayo
- Ulawulo lokusingqongileyo:Gxila ngaphakathi kwimodyuli yomlinganiselo wobushushu kunye nokufuma, usebenzisa eyona-emeko ezimbi kakhulu kucwangciso. Kwiindawo eziphakamileyo-zokufuma, iindawo ezivaliweyo ezinemilinganiselo ye-IP eqinisekisiweyo yimfuneko, hayi ukhuseleko.
- Ulawulo lwamandla:Sebenzisa izibonelelo ezilawulwayo kunye nokhuseleko lwe-hardware surge. Kuphephe ukubaleka izibane zangasemva ngokuqhubekayo kukukhanya okuphezulu - ukulawulwa kokukhanya okuguquguqukayo kunciphisa ukunxiba kwe-LED ngaphandle kwempembelelo ebonakalayo ekusebenzeni.
- Uhlolo olucwangcisiweyo:Ngenyanga - jonga indawo yokuhlala isinxibelelanisi kwaye ujonge ukuhlangana. Ngekota - sebenzisa ipateni yovavanyo kwaye uqinisekise umbane wobonelelo phantsi komthwalo. Ngonyaka - khangela i-ripple yonikezelo kwaye uhlole iileya zamehlo ze-delamination okanye ukuguga kwe-polarizer.
Kubaself-itheminali yenkonzoUbeko luqhuba ngokuqhubekayo -kwimeko-bume zetrafiki eziphezulu, uqwalaselo lwekota lolona -luphezulu lwexabiso lomsebenzi omnye wogcino.Izikrini ze-LCD ezoluliweyo ezisetyenziswa kwiindawo zevenkile enkuluUkujongana nokuvezwa okuthe ngqo kukufuma kunye neekhemikhali zokucoca ezinokuthi iishedyuli zogcino olusemgangathweni zingakwazi ukujongana ngokupheleleyo.
Imibuzo ebuzwa qho
I-LCD yam ibonisa isikrini esimhlophe - ingaba indawo yolawulo yophukile?
Akunjalo. Isikrini esimhlophe sihlala silunxibelelwano okanye ukungaphumeleli kokuqalisa kunomonakalo womzimba. Qinisekisa uqwalaselo lomthetho olandelwayo - izinga le-baud, imo ye-SPI, okanye idilesi ye-I2C - ngokuchasene nedatha yemodyuli. Oku kubaluleke ngakumbi emva kohlaziyo lwe-firmware okanye utshintshiselwano lwebhodi apho useto lusenokungagqithiselwanga ngokuchanekileyo.
Ndingatsho njani ukuba isibane sangasemva okanye indawo yolawulo ye-LCD ayiphumelelanga?
Khanyisa isibane kumphezulu wesikrini nge-engile kwigumbi elimfiliba. Ukuba ubona umfanekiso obuthathaka, indawo yolawulo ivelisa imveliso ngokuchanekileyo kwaye kuphela isibane esingasemva asileleyo. Akukho mfanekiso konke konke phantsi kwesibane kuthetha ukuba impazamo ikwindawo yolawulo, ibhodi yomqhubi, okanye indlela yomqondiso phakathi kwabo.
Ingaba umboniso odanyazayo unokulungiswa ngaphandle kokubuyisela umnqongo?
Kwiimeko ezininzi, ewe. I-Flickering idla ngokubangelwa yintambo yeribhoni ekhululekileyo, ijoyinti ye-solder esecaleni, okanye i-ripple yonikezelo olugqithisileyo. Ukuphinda kuhlalwe iziqhagamshelo kunye nokuqinisekisa uzinzo lwamandla ombane phantsi komthwalo kusombulula uninzi lwezikhalazo eziqhwayizayo phambi kokuba kufuneke ukutshintshwa kwelungu.
Ngaba kukhuselekile ukwenza amandla kwisiboniso esiye sabonakaliswa kukufuma?
Hayi. Vumela imodyuli yome ngokupheleleyo kwindawo ephantsi{1} yokufuma phambi kokufaka umbane. Ukunika amandla kwisiboniso esimanzi sibeka ingozi kwi-electrode corrosion kunye neesekethe ezimfutshane ezinokonakalisa ngokusisigxina ipaneli.
Kutheni umboniso wam usebenza ebhentshini kodwa usilele ebaleni?
Indawo engapheliyo-kuphela ukusilela okusoloko kubangelwa kukwandiswa kwe-thermal kwiqondo lobushushu lokusebenza, ukungcangcazela{1}}okunyanzelwa ukuphumla kwesiqhagamshelo, okanye ukucutha ngexesha lokuqalisa. Phinda kwakhona imeko-bume yobeko - ubushushu, ukungcangcazela, ukufuma - ngexesha lovavanyo lwebhentshi. Ukufumana isikhokelo ekukhetheni ihardware ephatha iimeko ezinzima ngokuthe rhoqo,Olu mboniso luphezulu-oluphezulu lokubonisa ukhetho lweLCDibandakanya iiyantlukwano ezichazayo ezibaluleke kakhulu.
Ukuqukumbela
Ukusilela kwimodyuli ye-LCD kuyafundeka xa usazi ukuba ujonge ntoni. Iphaneli emnyama, isikrini esidanyazayo, imveliso egrunjiweyo - imaphu nganye ukuya kuluhlu olulawulekayo lwezizathu ezinokwenzeka, kunye nenkqubo yoxilongo eyakhiweyo ifumana eyona mpazamo ngokukhawuleza kunokutshintsha amalungu ngokungakhethi. Inkqubo efanayo kwakhona ikuxelela ngokucacileyo xa ukulungiswa kuqhube ikhosi kwaye ukutshintshwa kuyimpendulo efanelekileyo.
Ukuba ukusilela kwamva nje kubeke ihardware entsha kwi-ajenda yakho, jongaindlela yanamhlanje izikrini LCD yorhwebo thelekisa iinketho isiko ukubonisa, okanyengenisa umbuzoukuxoxa ngeemfuno zakho ezithile zesicelo.
