Ob peb cov lus qhia los pab koj daws lub TV black screen

2020/11/11

TV TV dub yog qhov teeb meem uas peb feem ntau ntsib, qee lub TV hauv vijtsam dub tom qab ob peb feeb tom qab kev kho dua tshiab tsis muaj dab tsi, tab sis qee lub TV yog rov qab tom qab lub sijhawm ntev yog lub vijtsam dub lub xeev, tom qab ntawd peb yuav daws qhov tshwm sim ntawm TV dub screen?

Vijtsam dub yog ib hom kev tshwm sim ntawm TV, kuj yog qhov ntau, qhov kev ua tau zoo yog tsis muaj duab.V. Qhov screen dub muaj ob hom xwm txheej ib txwm muaj: nws yog tsis muaj duab, suab, TV screen tsis qaim; Lwm yam yog tsis muaj duab, tsis muaj suab nrov, thiab lub TV TV tso tawm teeb.Qhov ob qho xwm txheej no yog qhov xwm txheej dub feem ntau cuam tshuam.Yog tseem muaj qee qhov tshwm sim txawv uas peb yuav tsis nyob ntawm no.

Yuav ua li cas hais txog lub vijtsam dub hauv TV?

1. Ua ntej tshaj plaws, nws yuav tshwm sim los ntawm lub zog hluav taws xob tsis zoo, tshwm sim uas tsis teb rau lub pob thaum nias lub vaj huam sib luag thiab qhov taw qhia lub teeb tsis nyob rau. .Txoj kev muaj peev xwm yog qhov 5V thauj khoom tau hnyav dua.

2. Yog hais tias lub Circuit Court qhov qub, ces yuav muaj teeb meem nrog lub Circuit Court tsav lub backlight.

3. Nws tsis muaj teebmeem nyob rau ob qho kev sib sau ua ke sab saum toj, yog li nws yuav muaj qhov txhaum nyob rau hauv Circuit Court uas tswj qhov hloov ntawm lub siab phaj ntawm AD board.

Yuav ua li cas daws cov teeb meem ntawm dub screen ntawm TV?

1. Vim muaj qhov tsis zoo ntawm lub zog hluav taws xob, ua ntej xyuas seb 12V qhov hluav taws xob tsis muaj dab tsi, thiab tom qab ntawd kos lub 5V voltage. Yog tias tsis muaj 5V qhov hluav taws xob lossis lub 5V hluav taws xob ua qis heev, muaj teeb meem hauv qhov nkag theem ntawm lub zog hluav taws xob.Qhov kev txhaum no muaj ntau heev, nws yog kev hlawv cov ntawv pov hwm feem ntau lossis stabilizing nti zoo li txhaum, hloov cov feem cuam tshuam tuaj yeem.

2. Nws muaj teeb meem nrog lub Circuit Court tsav lub backlight. Txuas cov zaub rau tus tswv tsev rau kev pib tshuaj xyuas, thiab ua tib zoo saib ze rau ntawm lub vijtsam.

TV nrog qhov screen dub thiab suab daws:

Txoj Kev 1:

Qhov tshwm sim uas TELEVISION zoo nkaus li lub vijtsam dub yuav muaj suab yog feem ntau tshwm sim los ntawm hollow vuam ntawm qhov ntsuas hluav taws xob siab ntawm TELEVISION thiab cov tswj transistor, thaum muaj teeb meem zoo li no tau ntsib, qhov ntsuas hluav taws xob ntau ntawm cov teeb hluav taws xob sab nraud thiab tus tswj peb-theem raj yuav tsum tau tinned dua los kho vuam, yog li daws qhov teeb meem uas TELEVISION lub vijtsam dub muaj suab.

Txoj Kev 2:

Qhov 5V qhov hluav taws xob ntawm lub zog hluav taws xob tau dhau ib zaug, qhov voltage rub tawm qis dhau, lossis muaj teeb meem nrog cov teeb liab ua haujlwm nyob rau theem tom qab, thiab ib feem ntawm Circuit Court puas lawm.Nws yog tom qab ntawd tsim nyog los tshem tawm cov yuam kev ib qho los ntawm. ib qho, kuaj seb puas muaj qhov tsis zoo, hloov lub faulty Cheebtsam, thiab lub xov tooj hluav taws xob tuaj yeem rov ua qhov qub.

Txoj Kev 3:

Lub fais fab mov ntawm TV yog qhov qub. Nws yuav yog tias muaj teeb meem nrog kev tsav tsheb rov qab lub teeb hluav taws xob hauv TV, uas ua rau lub suab ntawm lub vijtsam dub.Thaum lub sijhawm no yuav tsum tau txuas lub ntsuas los saib xyuas lub khau raj ntawm kev tshuaj xyuas, thaum koj nyob ze ntawm qhov screen yuav tuaj yeem pom cov duab ntawm lub vijtsam qhia tau daj ntau, qhov no yuav ua pov thawj tsav tsheb cov teeb liab ua haujlwm yog qhov qub, qhov no vim li cas rau cov teeb meem TV tau tsav rov qab ua haujlwm ntawm high voltage tswj vaj huam sib luag hloov Circuit Court malfunction, ntev li ntev tau kev ua haujlwm ntawm Circuit Court muaj peev xwm rov qab mus rau TV duab ntawm kev daws teeb meem.

Txoj Kev 4:

Lub suab ntawm lub TV dub yuav yog los ntawm lub zog hluav taws xob tsis zoo ntawm lub TV. Qhov tshwm sim ntawm qhov teeb meem no yog tias tsis muaj lus teb los ntawm lub vaj huam sib luag yuam kev thiab qhov taw qhia lub teeb tsis nyob rau. muaj teeb meem nrog theem ntawm cov lus nkag fais fab Circuit Court. Qhov no feem ntau tshwm sim los ntawm hlawv cov hluav taws xob kev tuav pov hwm los yog qhov tsis ua tiav ntawm qhov voltage regulator nti. Txoj kev pov hwm ntawm TV yog hlawv thiab TV txoj kev pov hwm yuav tsum tau hloov.