Ndezvipi zvinowanzo kundikana paLCD TV?

A. Kugadzirisa LCD kunofanira kudzidza kuona kuti ndeipi chikamu chisina kunaka, iri ndiro danho rekutanga. Zvinotevera zvichataura nezvezvikanganiso zvikuru nezvikamu zvemutongo weLCD TV.

1: hapana mufananidzo hapana ruzha, mwenje wemagetsi unopenya kuita mwenje unogara uripo, skrini inopenya mwenje muchena panguva yekubatidza. Kukundikana uku kunonyanya kukonzera kukuvara kwebhodhi remutyairi we backlight. Asiwo kunokonzerwa nekugadzirisa skrini ndiko kukuvara kwerambi.

2: Mushure menguva yekushanda pachidzitiro (mosaic), ruzha rwava rwenguva dzose. Chiitiko ichi ndechekuti chekutanga ibhodhi redhijitari rakaipa (pamusoro pegomba harishande kana kuti kubatana kweIC hakuna kunaka). Chechipiri ikubatana kwakaipa mukati mekubatanidza kwemuchina.

3: boot three kwete, mwenje wemagetsi haubatidzi. Chekutanga ibhodhi remagetsi rakaipa, chechipiri ndechekuti chikamu cheCPU chebasa hachina kujairika.

4: kupenya kwechiedza hakugone kubatidzwa: Basa rebhazi reCPU harisi rakajairika kana chirongwa cheboot IC (BIOS) chisina kunaka, "BIOS" IC uye kusangana kwakashata pakati peCPU.

5: tembiricha yepamusoro: tinoona muchina uri mumba memutengi haupfuuri kuiswa pamadziro nepedestal mhando mbiri, asi ini pachangu ndakaona kuti, modhi imwe chete nenguva yekutenga muchina mumwe chete, muchina wakaiswa pamadziro pane mukana wekukundikana kwerudzi rwepedestal, uye kukundikana kumwe chetewo pakutanga kwemakore 1-2, saka zvinoita sekunge kwakabatana netembiricha, muchiitiko ichi, ndakagadzirisa muchina uyu ndichaisa mafeni maviri emakombiyuta kuti ndive nechokwadi chekuti nguva yewarandi haizove nekuda kwekupisa kwakanyanya uye kudzokera pakugadziriswa.

6: Kudzivirira ngura: Kuwedzera kune horo yekonsati yataurwa pamusoro apa, pedyo nemuchina wekicheni pane mwero wekutadza kwemuchina wemamwe, uye matambudziko avo anobva mukuora kwesimbi iri pakati pezvinobatanidza, uye zvinototungamira mukuora kwemaziso emhangura ane mativi maviri, tsime rechiitiko ichi, hongu, idambudziko remhando yemhepo, pakugadzirisa mamiriro aya, ndinoshandisa nzira yekuvhara nemafuta esilicone anofambisa kupisa uye haikanganisi kupisa, hongu, zvinobatanidza. Simbi inofanira kuiswa nerabha kuti ishandise yakachena.

7: Chidzitiro chinenge chese chichaonekwa bhendi dema, dambudziko remutsetse wakajeka, gadzirisa dambudziko iri kutanga kuti rive nemamiriro ekugadzirisa, mushure mekupedza kugadzirisa edza kushandisa mafuta ekupisa akafukidzwa nemapoinzi akawanda muCOF module IC nekuti dambudziko iri rinokonzerwawo nekupisa.

Kukundikana kwakajairika kweTV yeLCD uye nzira dzekugadzirisa (Kukundikana kwakajairika kweTV yeLCD gumi)

Chechipiri, chiitiko chakajairika chemuchina uye kukanganisa uye nzira dzekugadzirisa matambudziko

1: Sezvambotaurwa pamusoro apa, dambudziko rechidzitiro (bhendi dema, mutsetse wakajeka) ndiro rinonyanya kukosha, mamiriro ezvinhu aya kazhinji haagone kuitwa kana pasina mamiriro ekuchengetedza, chete kuvimba nehunyanzvi uye mamiriro ekuchengetedza.

2: Zvikamu zve LG screen zve buffer board zvinowanzova zvakaipa zvikamu zvechiitiko ichi zvakazara ne screen miscellaneous points, asi zvimwewo zvakazara ne stair bars dzakajairwa, kukundikana uku kunogona kutsiva peya ye buffer board (kunyangwe kana side rakaipa, asi kutenga peya yevanhu hakuzokutengesa imwe chete) kana kuyera kuti ndeipi IC yakaipa, kuitsiva.

3: Hazvina mhosva kuti ndeipi skrini, Y bhodhi iri mumuchina wePDP mukati memikana yekushata inoverengerwa kwechipiri, inowanzo kukuvara mushure mekunge chiitiko chiri skrini, izere nemadonhwe emavara, kana nekuda kwepfupi circuit uye dziviriro yesimba, VS kana VA voltage pakarepo, asi kwete kusvika pamutengo wechidzitiro voltage wetafura chaiyo nei zviri nyore kuipa, handizivi chikonzero.

4: X bhodhi zvakare iPDP muchina inowanzova nezvikamu zvakaipa, mashandiro ayo ekudzivirira boot (Fujitsu screen kazhinji), uye kupenya kwakasviba.

5: Mwero wekukundikana kwebhodhi relogic hausi wakaderera, muPDPLCD dzakawanda, mashandiro aro anowanzo kuve echiedza chechidzitiro, asi hapazovi nemavara, hapana mufananidzo, kana kusarongeka kwemufananidzo, ruvara rwakakanganisika, kushaya ruvara, mufananidzo usina kunaka, nezvimwewo. Zvimwe hazvigone kuvhurwa.

6: Kukundikana kwakajairika kweLCD matambudziko echidzitiro, mabhandi matema, mitsetse, ndiyo inonyanya kuitika, aya matambudziko ekutanga anogona kupfupikiswa sematambudziko echidzitiro, mamwe ane mamiriro ekugadzirisa ekugadzirisa, mamwe nekuda kwekupisa kwakanyanya, zvichikonzera kuti COF uye poindi yekubatanidza skrini yeACF kubva muchiitiko ichi inogona kugadziriswa nesimbi yakatsetseka pasi pepad insulation media hot method.

7: Muchina weLCD, dunhu re inverter rechidzitiro (bhodhi re high-voltage) chikamu chinokanganisa, chinoratidzwa sechiedza chakabatidzwa, asi hapana chiedza kwenguva yakati, asi kune ruzha, (kunze kweSHARP), asi kukwegura kwechubhu yechiedza nekukuvadzwa kuchaita kuti bhodhi re high-voltage ridzivirirwe, kuti rione kana chubhu yechiedza kana bhodhi re high-voltage rakaipa, kubviswa kwebhodhi re high-voltage paavhareji yemutengo wekuenzanisa ongororo yedunhu.

8: Shamwari zhinji dzinobvunza kuti SHARP LCD ingachengetedzwa sei, kutaura zvazviri, uye LCD yakajairika yakafanana nekupinda mumenyu yekuchengetedza, unogona kuona zvinhu zvekukanganisa zviripo makodhi ekukanganisa, mamwe zvakananga kukodhi zero, mamwe anofanira kugadzirisa zvikamu zvinoenderana zvekutadza.

Chechitatu, LCD TV backlight common fault judgment

1. mwenje wekumashure uri muAC power-on instant LCD screen wadzima zvishoma, panguva ino, mashandiro ekudzora ruzha, remote control, uye panel button akajairika. Chiitiko ichi chinokonzerwa nekuchengetedzwa kwedunhu rebacklight, chikonzero chemagetsi ebacklight booster board asina kujairika kune CCFL backlight circuit, kana backlight tube yakavhurika circuit (yakajairika kune backlight booster board rambi socket yakavhurika solder kana socket isina kuiswa zvakasimba inokonzerwa nekuchengetedzwa kwedunhu) kana kuti Rambi rakatyoka rinogona kukonzera kutadza kuri pamusoro apa.

2. Switch yekumashure haina shanduko, ruzha, remote control, panel button control zvakajairika, dambudziko iri rinofanira kuona mamiriro ekushanda anotevera.

(1). Simba remagetsi re backlight booster circuit, sikirini hombe ye24 volts, shoma kwazvo ine 120 volts, sikirini diki inowanzova 12 volts.

(2). Chiratidzo cheCPU control circuit output backlight booster board oscillator work switch control, chinowanzo shandiswa kutanga kwepamusoro-soro, chiratidzo chemwenje we3V-5V kana mamiriro ekushanda ari pamusoro apa aripo, unogona kutsiva backlight booster board, kana backlight booster board yekutsiva ikakundikana sepakutanga, kunyanya nekuda kwezvikamu zveLCD screen mu backlight tube kukuvara.

3. Kana rambi rekumashure rakajeka uye risina kupenya, zvakajairika kuti soketi yerambi rebhodhi rekusimudzira rambi remashure risabatane zvakanaka nerambi, uye simba remagetsi rekumashure rakakwirira kana kuti rakaderera.