A. kugadzirisa LCD inofanira kudzidza kuona kuti ndeipi chikamu chakashata, iyi ndiyo nhanho yekutanga. Izvi zvinotevera zvichataura pamusoro pekukanganisa kukuru uye zvikamu zveLCD TV kutonga.
1: hapana mufananidzo hapana ruzha, mwenje wemagetsi unopenya muchiedza chinogara chiripo, skrini inopenya mwenje chena panguva yekubatidzwa kwesimba. Kutadza uku kunonyanya kukuvadzwa kwebacklight driver board. Asi zvakare akasangana mukugadziriswa kwechidzitiro ndiko kukuvara kwemwenje.
2: Mushure menguva yesimba pachiratidziro (mosaic), ruzha rwakajairika. Ichi chiitiko chekutanga idhijitari bhodhi rakashata (pamusoro pegomba harishande kana IC kuonana hakuna kunaka). Yechipiri ibatanidzo yakaipa mukati mekubatana kwemuchina.
3: bhutsu matatu kwete, mwenje wemagetsi hauvheneke. Yekutanga ibhodhi rakashata remagetsi, yechipiri ndiyo chikamu cheCPU chebasa hachina kujairika.
4: mwenje unopenya haugone kuvhurwa: CPU bhazi basa harina kujairika kana bhutsu chirongwa IC (BIOS) yakaipa, "BIOS" IC uye kusabatana kwakashata pakati peCPU.
5: tembiricha yepamusoro: tinoona muchina mumusha wemutengi hausi kupfuura madziro-akaiswa uye pedestal mhando mbiri yekuisa, asi kutarisa kwangu pachedu, muenzaniso wakafanana uye nguva yekutenga muchina mumwechete, muchina wakaiswa pamadziro pane mukana wekutadza kwerudzi rwepedestal, uye kukundikana kwakafanana zvakare kutanga kwe1-2 makore, saka zvinoita sekunge, ine chekuita nekupisa, mune ino kesi, iyo inogadziriswa mafeni maviri ekombuta ichave yakagadziriswa mafeni maviri ekombuta. Kupisa kwepamusoro uye kudzokera kugadzirisa.
6: Kudzivirirwa kwekuora: kuwedzera kune yambotaurwa pamusoro peimba yekonisheni, padyo nemuchina wekubikira kupfuura mimwe michina yekutadza kutadza, uye matambudziko avo anotorwa kubva mukuora kwesimbi yepasi pakati pezvibatanidza, uye inotungamira kune kaviri-mativi mhangura yekuora kweziso, kunobva chiitiko ichi, hongu, dambudziko remhando yemhepo, pakushandisa gadziriso yeiyi nzira yekupisa uye sesilicone inogadzirisa. haikanganisi kupisa kupisa, hongu, zvibatanidza Simbi inofanira kushandiswa nerabha kuti ishandise yakachena.
7: Anenge ese chidzitiro achaonekwa bhendi dema, kupenya mutsara dambudziko, gadzirisa chikanganiso ichi kutanga kuva kugadzirisa mamiriro, pashure kupedzwa kugadzirisa edza kushandisa thermal girisi akaputirwa nemamwe mapoinzi muCOF module IC nokuti dambudziko iri rinokonzerwawo tembiricha.
LCD TV yakajairika kutadza uye kugadzirisa nzira (LCD TV gumi zvakajairika kutadza)
Chechipiri, iyo yakajairika muchina uye kukanganisa chiitiko uye nzira dzekugadzirisa matambudziko
1: Sezvataurwa pamusoro apa, dambudziko rekrini (black bhendi, mutsara wakajeka) ndiyo yakanyanya, mamiriro ezvinhu aya anowanzo kushayikwa kwemamiriro ekugadzirisa haagone kuita, kungovimba nehunyanzvi uye mamiriro ekugadzirisa.
2: LG screen components of the buffer board inowanzova yakaipa zvikamu zvechiitiko chakazara nescreen miscellaneous points, asiwo mamwe azere neanogara akamira mbariro, kutadza uku kunogona kutsiva peya yebuffer board (kunyangwe kana divi rakashata, asi zvakare kutenga peya yevanhu haizotengesi imwe kwauri) kana kuyera kuti ndeipi chidimbu cheIC chakaipa, chitsiva chinogona kunge chiri.
3: Hazvina mhosva kuti ndechipi chidzitiro, Y bhodhi iri mumushini wePDP mukati memikana yekuipa yakaverengerwa yechipiri, inowanzokuvadzwa mushure mekunge chiitiko chiri chidzitiro, chizere nemavara emavara, kana nekuda kwekupfupika kwedunhu uye kudzivirira kwesimba, VS kana VA voltage ipapo, asi kwete kusvika kune iyo skrini voltage kukosha kwetafura chaiyo nei zviri nyore kuipa, handizive chikonzero.
4: X bhodhi zvakare PDP muchina kazhinji yakaipa zvikamu, kuita kwayo kwekudzivirira kwebhutsu (Fujitsu skrini kazhinji), uye kupenya kwakasviba.
5: Kukundikana kweiyo logic board haisi yakaderera, muPDPLCD inowanzojairika, kushanda kwayo kunonyanya kuve chiedza chekrini, asi hapazovi nevatambi, hapana mufananidzo, kana zvisizvo zvemufananidzo chaotic color, kushaya ruvara, chimiro chisina kunaka, etc. Vamwe havagone kuvhurwa.
6: LCD inonyanya kutadza kutadza idambudziko rekrini, mabhandi erima, mitsara, ndiyo inonyanya kuwanda, izvi zvakakosha zvinogona kupfupikiswa sematambudziko echiratidziro, vamwe kuve nekugadzirisa mamiriro ekugadzirisa, vamwe nekuda kwekupisa kwakanyanya, zvichikonzera COF uye skrini yekubatanidza nzvimbo yeACF kunze kwechiitiko ichi inogona kugadziriswa nesimbi yakatsetseka pazasi pedhi rekudzivirira media inopisa nzira.
7: LCD muchina, iyo screen component inverter circuit (yakakwirira-voltage bhodhi) inokanganisa-yakagadziriswa zvikamu, inoratidzwa sechiedza, asi kwechinguva pasina chiedza, asi pane ruzha, (kunze kweSHARP), asi chiedza chechubhu kuchembera uye kukuvadzwa kuchaita kuti pave nepamusoro-voltage bhodhi kuchengetedzwa, kuona kana chubhu yechiedza kana yakakwirira-voltage bhodhi pachayo yakashata paavhareji ye-computing value paavhareji ye-computing value circuit.
8: Shamwari dzakawanda dzinobvunza kuti ingachengetedza sei SHARP LCD, chaizvoizvo, uye LCD yakajairwa yakafanana nekupinda mumenyu yekugadzirisa, unogona kuona zvinhu zvakakanganisika pane zvikanganiso zvekodhi, zvimwe zvakananga kune code zero, vamwe vanofanira kugadzirisa zvikamu zvinoenderana nemhosva.
Chechitatu, iyo LCD TV backlight yakajairika kukanganisa kutonga
1. the backlight in the AC power-on instant LCD screen light off zvishoma, panguva ino, the accompant sound, remote control, panel button control function are normal Ichi chiitiko chinokonzerwa ne backlight circuit kuchengetedzwa, chikonzero che backlight booster board power supply abnormal for CCFL backlight circuit, kana backlight chubhu yakavhurika dunhu (inowanzo kune bhodhi rakavharika rakavhurika socket rakavhurika socket rakavhurika socket rakavhurika dziviriro) kana Rambi rakaputsika rinogona kukonzera kutadza kuri pamusoro.
2. the backlight switch hapana shanduko, ine ruzha, remote control, panel bhatani control zvakajairika mhosva iyi inoda kuona zvinotevera kushanda mamiriro.
(1). iyo backlight booster circuit power supply, yakajairika hombe sikirini ye24 volts, ishoma kwazvo ine 120 volts, diki skrini inowanzoita gumi nemaviri volts.
(2). iyo CPU inodzora redunhu inoburitsa backlight booster board oscillator basa switch yekudzora siginecha, yakajairika padanho rekutanga, yakawanda 3V-5V mwenje mwenje yekudzora chiratidzo kana iri pamusoro pemamiriro ekushanda aripo, ipapo unogona kutsiva backlight booster board, kana kutsiva backlight booster board kutadza sepakutanga, zvakanyanya kune iyo LCD skrini zvikamu mu backlight chubhu kukuvara.
3. apo chiedza chemashure chiri kupenya uye chisina kujeka, zvinowanzoitika kuti chigadziko chemwenje chebhobho rebhobho rebhobhoti rine hukama husina kunaka nemwenje, uye magetsi emagetsi emagetsi akakwirira kana akaderera.
Nguva yekutumira: Aug-04-2022