Yuav ua li cas cov ntxaij vab tshaus LCD ua haujlwm thiab yuav ua li cas kom pom cov kua siv lead ua kua
1. Txiav txim qhovkua siv lead ua kua screenmuab hluav taws xob
Cov kauj ruam tseem ceeb tshaj plaws ua ntej nyem qhov screen yog los txiav txim seb muaj pes tsawg volts qhov screen voltage yog, uas yog, pes tsawg volts ntawm lub vijtsam peb xav taw tes yog, thiab seb nws puas haum rau hardware motherboard. Yog tias cov khoom siv yog 12V thiab lub vijtsam yog 5V, lub vijtsam yuav raug hlawv. Nws tuaj yeem pom nyob rau hauv cov lus qhia dav dav.
Lus Cim: Lub vijtsam fais fab mov voltage thiab lub vijtsam backlight voltage yog ob qhov sib txawv.
2.Panel kua siv lead ua tshuaj ntsuam lub sijhawm teem sijhawm
PANEL cov kauj ruam pib: thawj zaug qhib lub hwj chim ntawm lub vaj huam sib luag, tom qab ntawd xa cov ntaub ntawv PANEL, thiab thaum kawg teeb lub teeb; qhov kev kaw cia yog thim rov qab. Lub sijhawm DELAY yog teem los ntawm MCU software, yog tias lub sijhawm teeb tsa tsis zoo, yuav muaj lub vijtsam dawb tam sim lossis lub vijtsam.
Muab tso rau hauv LOGO ua piv txwv. Ua ntej tig ntawm qhov screen, ncua sijhawm, thiab xa LOGO. Lub sijhawm no, tus neeg siv pom dab tsi yog dub vim tias lub teeb rov qab tsis tau qhib. Tom qab LOGO ruaj khov, tig lub teeb rov qab kom pom lub LOGO.
T2 yog lub sij hawm los ntawm T-con fais fab-rau LVDS cov ntaub ntawv tso zis, T3 yog lub sij hawm los ntawm LVDS cov ntaub ntawv tso zis rau backlight rau, thiab T4 thiab T5 yog lub hwj chim-down sib lawv liag rau T2 thiab T3, thiab T7 yog lub sij hawm luv luv. nruab nrab ntawm T-con rov ua hluav taws xob. LVDS lub sijhawm ua ntu zus ntawm qhov screen yog qhov tseem ceeb dua. Yog tias nws tsis tau teeb tsa kom raug, cov teeb meem xws li qhov muag tsis pom thiab lub ntsej muag ntsuab yuav tshwm sim. Rau qhov kev teeb tsa tshwj xeeb ntawm txhua qhov parameter, thov xa mus rau qhov screen specification.
Lub backlight fais fab mov feem ntau yog lub zog loj ntawm lub TV. Tom qab lub tshuab hluav taws xob tseem ceeb tau qhib, lub zog yuav tsum tau ua cov haujlwm pib ua haujlwm, yog li T2 feem ntau tuaj yeem ua tau raws li qhov yuav tsum tau ua. Lub sijhawm teeb pom kev zoo feem ntau yuav tsum tau siv ua ke nrog LVDS lub sijhawm, thiab lawv muaj qhov tsis sib xws --- backlight hloov teeb liab. Lub sijhawm no, T3 yuav tsum tau npaj kom tsim nyog los xyuas kom meej tias lub teeb liab hloov pauv tuaj yeem ua tau raws li LVDS lub sijhawm thiab lub sijhawm teeb tsa.
Cov kua siv lead ua kua tshuaj ntsuam lub zog-on thiab lub zog-tawm lub sijhawm daim duab kos yog raws li hauv qab no (los ntawm qhov kev qhia tshwj xeeb):
1. Kho vajtse
kua siv lead ua tshuaj ntsuam input
1. Lub hwj chim mov yuav tsum ua raws li lub hwj chim mov voltage ntau ntawm cov zaub screen
2. Txawm hais tias lub moos zaus tsim los ntawm cov khoom siv lead ua oscillator Circuit Court yog qhov tseeb, ua tib zoo saib xyuas cov khoom siv lead ua oscillator Circuit Court, koj yuav tsum tau kuaj xyuas PCB kom pom tias cov xaim puas raug.
3. Txheeb xyuas seb qhov rov pib ua ntu zus ntawm lub vijtsam puas yog raws li qhov rov pib ua ntu zus ntawm cov lus qhia tshwj xeeb
4. Puas muaj ib qho kev hloov pauv ntawm tus pin pib ntawm lub vijtsam thaum lub hwj chim, xws li SDA, SCL, CS lossis WR pins, yog tias tsis yog, koj yuav tsum xyuas seb lub software puas tau teeb tsa nrog tus pin pib ntawm lub vijtsam.
kua siv lead ua kua screen tso zis
1. Seb HSYNC thiab VSYNC muaj waveform
2. Seb tus RGB cov ntaub ntawv tus pin lossis DATA tus pin yog cov zis
2. Software
1. Configure lub backlight tswj tus pin ntawm lub lcd zaub screen thiab hu nws kom paub tseeb tias qhov screen yuav ci.
2. Kho tus pin rov pib dua, pib tus pin SDA, SCL, CS lossis WR ntawm lub vijtsam lcd, thiab RGB lossis DATA tso zis tus pin
3. Yog tias cov kua siv lead ua kua tshuaj ntsuam xav tau kev pib ua ntej ntxiv, hu rau tus lej pib ntawm lub vijtsam, uas yog muab los ntawm tus neeg muag khoom tshuaj ntsuam. Yog tias cov kua siv lead ua kua IC tau pib ua haujlwm sab hauv, tom qab ntawd lwm cov microcontrollers tsis tas yuav sau qhov screen pib ua ntu zus, txwv tsis pub nws yuav tsum nyem qhov screen raws li cov ntaub ntawv muab los ntawm tus neeg xa khoom tshuaj ntsuam.
4. Pib lub kua siv lead ua kua tshuaj ntsuam debugging npo thiab kho qhov screen tsis.
Post lub sij hawm: Sep-26-2023