Dab tsi yog vim li cas rau lub vijtsam dawb ntawm lub computer LCD saib? Kev daws rau lub vijtsam dawb ntawm lub khoos phis tawj LCD saib [ntxiv]

Nyob rau hauv tus txheej txheem ntawm kev siv lub computer, koj yuav ntsib dub screen, xiav screen, thiab qhov muag plooj screen. Cov phooj ywg uas feem ntau siv lub computer yuav tsis paub txog nws. Qhov tseeb, muaj qhov tsis tshua muaj tshwm sim ntawm lub vijtsam dawb. Tej zaum qee cov neeg siv tau ntsib nws ua ntej. Lub vijtsam dawb ntawm tus saib feem ntau tshwm sim ntawm qee cov saib uas tau siv sijhawm ntev. Yuav ua li cas nrog lub vijtsam dawb ntawm lub computer LCD saib? Yuav daws li cas? Cov editor nram qab no yuav qhia txog kev daws teeb meem rau lub vijtsam dawb ntawm LCD saib rau koj siv.

1. Vim li cas rau lub vijtsam dawb ntawm LCD:

1. Lub vijtsam LCD dawb yuav tshwm sim los ntawm kev sib cuag tsis zoo lossis kev puas tsuaj rau daim npav duab lossis video cable.

2. Cov teeb meem sab hauv ntawm cov zaub feem ntau suav nrog: LCD vaj huam sib luag tsav Circuit Court teeb meem, LCD vaj huam sib luag fais fab mov Circuit Court teeb meem, tsis zoo screen cable tiv tauj, motherboard tswj Circuit Court teeb meem thiab lwm yam teeb meem.

Txij li thaum lub LCD npo yog dawb paug tom qab booting, nws qhia tau hais tias lub backlight thiab high-voltage generating Circuit Court ua hauj lwm ib txwm, tab sis lub LCD vaj huam sib luag tsis tau ib tug tsav tsheb teeb liab. Yog tias lub vijtsam ploj tom qab lub khoos phis tawj kaw lawm, thiab tom qab ntawd lub vijtsam rov qab rov qab, nws yuav tshwm sim los ntawm qhov teeb meem nrog lub hwj chim board.

3. Los ntawm kev txheeb xyuas qhov tshwm sim tsis ua haujlwm, txawm tias lub vijtsam LCD qhib lossis kaw, tsuav yog lub hwj chim txuas nrog, lub zog hluav taws xob tsim hluav taws xob ib txwm nyob hauv kev ua haujlwm, thiab lub teeb nraub qaum yog ib txwm teeb. Nyob rau hauv lwm yam lus, lub high-voltage generating Circuit Court yog tsis tswj los ntawm kev hloov, uas yog, lub switching teeb liab xa los ntawm lub ntsiab board mus rau high-voltage generating circuits yog tsis tswj. Txij li thaum lub teeb liab hloov pauv xa los ntawm microprocessor ntawm lub rooj tsav xwm tseem ceeb feem ntau yuav tsum tau tswj los ntawm ntau lub transistors, qhov txhaum yuav yog qhov kev puas tsuaj ntawm transistor uas tswj cov teeb liab hloov.

2. Cov kev daws teeb meem thiab kev saib xyuas cov tswv yim rau lub vijtsam dawb ntawm LCD zaub:

Ua ntej, txiav txim seb nws yog teeb meem daim npav lossis VGA kab teeb meem. Koj tuaj yeem hloov VGA kab kom pom tias lub vijtsam tseem dawb. Yog hais tias lub vijtsam tseem yog xim dawb, nws yog ib qho teeb meem nrog lub tshuab computer, feem ntau yog kev sib txuas tsis zoo lossis ua haujlwm tsis zoo ntawm daim npav graphics, tab sis qhov no tsis tshua muaj tshwm sim. Cov hauv qab no yog cov lus piav qhia ntxaws txog cov kev daws teeb meem rau qhov tshwm sim ntawm lub vijtsam dawb tshwm sim los ntawm cov zaub tsis zoo:

1. Ua ntej disassemble lub plhaub ntawm lub vijtsam LCD, thiab tom qab ntawd xyuas seb lub vijtsam cable cuam tshuam puas xoob lossis tsis txuas zoo. Tom qab kuaj xyuas qhov screen cable kev twb kev txuas yog ib txwm, mus rau kauj ruam tom ntej.

2. Qhib lub hwj chim hloov ntawm lub computer, thiab tom qab ntawd siv lub multimeter los ntsuas seb lub hwj chim mov voltage ntawm lub vijtsam kab interface yog qhov qub. Yog hais tias lub hwj huam mov voltage yog ib txwm, mus rau kauj ruam 5; Yog tias nws tsis zoo li qub, tom qab ntawd xyuas seb lub fuse resistor lossis fuse inductor nyob ze ntawm qhov chaw tso zis ntawm lub vijtsam kab yog qhib lossis puas. Yog tias muaj kev puas tsuaj, hloov cov khoom puas.

3. Yog hais tias lub fuse kuj los yog fuse inductance nyob ze ntawm qhov tso zis davhlau ya nyob twg ntawm lub vijtsam kab yog qhov qub, ces xyuas seb qhov hluav taws xob hluav taws xob hluav taws xob ntawm DC-DC hloov hluav taws xob hluav taws xob uas siv hluav taws xob rau lub vijtsam LCD puas yog qhov qub. Yog tias qhov tso zis hluav taws xob tsis zoo, xyuas lub fuse resistor, PWM maub los, hloov raj, inductance coil, lim capacitor thiab lwm yam khoom hauv lub zog hluav taws xob, thiab tom qab ntawd hloov cov khoom puas.

4. Yog hais tias qhov voltage ntawm qhov tso zis davhlau ya nyob twg ntawm DC-DC voltage hloov dua siab tshiab Circuit Court yog ib txwm, muaj puas capacitors thiab lwm yam Cheebtsam ntawm lub output davhlau ya nyob twg ntawm DC-DC voltage conversion circuit thiab screen kab interface. Xyuas thiab hloov cov khoom puas.

5. Yog hais tias lub hwj chim mov voltage ntawm lub screen kab interface yog ib txwm, ces xyuas seb lub sij hawm teeb liab thiab tsav teeb liab nyob rau hauv lub LCD vaj huam sib luag tsav Circuit Court yog ib txwm. Yog tias nws tsis zoo li qub, xyuas cov teeb liab tso tawm, cov teeb liab tawm tswv yim thiab lub zog hluav taws xob ntawm cov nti uas tsim cov teeb liab no los txiav txim seb lub nti tsav puas puas. Yog tias nws puas lawm, tsuas yog hloov nws.

Kev saib xyuas ntawm lub vijtsam dawb ntawm LCD saib tsis yooj yim li lub vijtsam dub lossis xiav lub vijtsam ntawm lub monitor. Koj yuav tsum paub qee qhov kev paub txog lub voj voog ntawm lub monitor. Nws yog qhov zoo tshaj plaws los xa cov saib mus rau lub koom haum kev tshaj lij xws li Xunwei Kev Kho Kev Kho Mob sai thiab nug cov kws saib xyuas cov neeg ua haujlwm ua haujlwm. Overhaul. Qhov tseeb, thaum koj ntsib teeb meem nrog lub vijtsam dawb ntawm LCD, tsis txhob xav tias lub monitor puas lawm thiab tsis tau kho. Qee zaum qhov txhaum yog qhov yooj yim thiab kho tau yooj yim. Tom qab cov neeg ua haujlwm saib xyuas tau kuaj xyuas thiab kho, nws tsis lig dhau los txiav txim rau lub txim tuag.