(1). Kev siv ntawmLCD: Vim lub hauv paus ntsiab lus tshwj xeeb thiab cov qauv ntawm cov kua siv lead ua kua zaub, nws yuav tsum tau sau tseg thaum siv lub installation:
1. Tiv thaiv kom tsis txhob muaj zog ntau dhau: Cov khoom siv ua kua siv lead ua kua yog cov kua siv lead ua kua cell ua los ntawm ob daim iav. Tsuas muaj 5 ~ 10um nruab nrab ntawm lawv, thiab sab hauv ntawm lub khob kuj yog coated nrog ib qho kev taw qhia txheej, uas yooj yim tawg. Yog li ntawd, yuav tsum tau saib xyuas thaum sib dhos thiab siv:
A. Qhov saum npoo ntawm LCD yuav tsum tsis txhob dhau lub zog kom tsis txhob ua rau cov txheej txheem sib dhos. Yog tias lub siab loj dhau lawm, lossis yog tias qhov nruab nrab ntawm lub LCD yog nias ntawm tes, nws yuav tsum tau muab tso rau tsawg kawg 1 teev ua ntej lub zog.
B. Nco ntsoov ua kom lub siab sib xws nyob rau hauv lub rooj sib txoos, tsuas yog nias ntawm ntug ntawm lub cuab yeej, tsis tuaj yeem nias nruab nrab, thiab tsis tuaj yeem yuam tsis sib npaug.
2. Tiv thaiv iav tawg: Txij li lub LCD yog ua los ntawm iav, yog tias nws poob los yog cuam tshuam, nws yuav ua rau tawg. Yog li ntawd, txoj kev sib dhos thiab kev co thiab kev cuam tshuam ntawm kev sib dhos yuav tsum raug txiav txim siab hauv kev tsim ntawm tag nrho lub tshuab.
3. Kev tiv thaiv tus pin: Yog tias nws yog tus pin-hom LCD, lub LCD yuav tsum tau nruab 2 hli los yog ntau tshaj ntawm lub rooj tsav xwm kab, thiab nws yuav tsum tsis txhob raug quab yuam thiab cua sov, thiaj li tsis ua rau kev sib txuas. Qhov siab tshaj plaws kub tsis kam ntawm qhov sib koom ua ke yuav tsum tsis pub tshaj 80 degree. Tsis txhob siv cov tshuaj detergent ntawm tus pin, vim tias ntxuav hauv nruab hnub nrig yuav decompose C12, thiab tom qab nqus dej, hydrochloric acid yuav ua rau corrode electrode.
4. Ntaus dej noo:
Txij li thaum lub LCD tsis tshua muaj hluav taws xob, micro siv hluav taws xob, cov khoom siv lead ua kua muaj qhov muaj zog heev (txog 101oΩ.cm lossis ntau dua). Yog li ntawd, qhov saum npoo ntawm cov iav vim yog ya raws yog conductive txaus los cuam tshuam cov zaub. Ib qho "crosstalk" zaub yuav tshwm sim ntawm ntu. Yog li ntawd, tus tsim ntawm tag nrho lub tshuab yuav tsum xav txog cov dej-pov thawj, lub chassis yog zoo kaw, thiab txawm siv ib tug sandwich-hom conductive roj hmab sawb.
5. Tiv thaiv kev khawb thiab kev ua qias tuaj: Txij li qhov saum npoo ntawm cov khoom siv ua kua siv lead ua kua yog cov yas polarizer, nws yog ib qho tsim nyog yuav tsum tsis txhob khawb thiab staining ntawm tawv krafts thaum sib dhos thiab siv. Muaj ib zaj duab xis tiv thaiv ntawm lub polarizer rau saum npoo ntawm LCD kom tsis txhob khawb thiab stains. Thaum sib dhos, cov yeeb yaj kiab tiv thaiv yuav tsum raug tshem tawm thaum lub rooj sib txoos zaum kawg tiav. Txawm li cas los xij, nws yog qhov zoo tshaj rau hnav cov hnab looj tes paj rwb thaum lub sijhawm teeb tsa thiab ua haujlwm kom tsis txhob muaj stains xws li hws, roj, thiab tshuaj pleev ib ce. Yog tias nws tau stained, nws yuav tsum tau so nrog ib daim ntaub zoo lossis paj rwb hauv lub sijhawm; Yog tias nws hnyav dhau los ntxuav nrog cov kuab tshuaj, nws tuaj yeem tsuas yog so nrog isopropyl cawv (glycerin), cawv, freon, thiab ziab sai sai, tab sis yuav tsum tsis txhob siv acetone, cov kuab tshuaj tsw qab (xws li toluene thiab dej thiab txhuam), txwv tsis pub. nws yuav ua puas lub LCD nto polarizer.
6. Tiv thaiv daim ntawv thov ntawm DC:
Qhov me me ntawm DC tivthaiv ntawm kev tsav tsheb, qhov zoo dua, nyiam dua tsis pub tshaj 50 mV. Kev siv cov khoom siv DC ntau dhau rau lub sijhawm ntev ua rau cov khoom siv hluav taws xob tau txais cov tshuaj tiv thaiv electrochemical thiab tsis zoo. Hauv ntu tso saib, qhov sib faib-los ntawm -2 Circuit Court feem ntau tau qhia hauv lub voj voog oscillating kom ntseeg tau tias qhov sib luag ntawm lub voj voog square.
7. Kev tiv thaiv UV: Cov kua siv lead ua kua thiab lub teeb polarized yog cov khoom siv organic, uas ua rau cov tshuaj tiv thaiv photochemical nyob rau hauv lub teeb ultraviolet ua rau tsis zoo. Yog li, nws yuav tsum tau txiav txim siab raws li cov xwm txheej thiab ib puag ncig ntawm LCD seb nws puas tsim nyog rau nruab ib lub lim dej tiv thaiv ultraviolet.
8. Siv thiab khaws cia nyob rau hauv qhov ntsuas kub: Vim tias cov kua siv lead ua kua hauv lub xeev yuav ploj mus dhau qhov kub thiab txias, nws yuav tsum tau siv thiab khaws cia rau hauv qhov ntsuas kub. Thaum qhov kub thiab txias dhau lawm, cov kua siv lead ua kua hauv lub xeev ploj mus thiab dhau los ua kua anisotropic, thiab cov zaub yog xim dub thiab tsis tuaj yeem ua haujlwm. Tsis txhob siv zog rau lub sijhawm no. Thaum qhov kub thiab txias rov qab mus rau qhov qub, lub ntsej muag zaub yuav rov qab mus rau qhov qub. Yog tias qhov kub thiab txias qis dhau, cov kua siv lead ua kua hauv lub xeev kuj yuav ploj mus thiab dhau los ua cov khoom siv lead ua. Lub sijhawm no, nws muaj peev xwm ua kom cov txheej txheem kev taw qhia thaum lub sij hawm siv lead ua thiab ua rau muaj kev puas tsuaj mus tas li.
9. Electrostatic cuam tshuam: Txij li thaum lub LCD kev khiav hauj lwm voltage yog tsis tshua muaj heev thiab lub internal kuj yog heev loj, thaum siv ib tug multimeter (x10K ntaub ntawv), qhov tshwm sim ntawm "txoj hlua" tej zaum kuj tshwm sim. Qhov no yog vim qhov raug tshem tawm ntawm cov electrode, uas yog ib txwm tshwm sim.
(2). Kev tshem tawm qhov ua yuam kev hauv kev siv: Thaum siv cov cuab yeej tsim nyog siv, qee zaum nws yuav ua haujlwm tsis zoo vim kev siv tsis tsim nyog, cov xwm txheej tsis zoo, thiab tsis ua tiav ntawm cov khoom siv lossis cov txheej txheem kev teeb tsa tsis raug. Cov laj thawj thiab kev cais tawm yog raws li hauv qab no:
1. Kev sau ntawv tsis suav nrog: Tom qab ob peb teev lossis ob peb hnub, cov electrode yuav tshwm dub thiab xim av "sau", thiab cov kua siv lead ua lub thawv yuav tsim cov npuas, uas yuav ua rau nws tsis tuaj yeem tso saib. Qhov no yog tshwm sim los ntawm qhov tseeb tias DC tivthaiv ntawm qhov tsav tsheb loj dhau, ua rau muaj kev cuam tshuam electrochemical. Txheeb xyuas lub voj voog, tshem tawm cov khoom DC loj, thiab hloov nws nrog lub LCD tshiab. Thaum lub "sau ntawv" tshwm sim, lub LCD tuaj yeem ua kom sov siab tshaj qhov ntsuas kub, uas yog, thaum lub ntsej muag ntawm cov khoom siv ua kom tsis muaj xim, qhov kub thiab txias tau nres, thiab tom qab lub ntuj txias, "sau ntawv" tuaj yeem ua tau. feem ntau muab tshem tawm.
2. Vaguely tso tawm kom pom: ntu tus cwj mem uas yuav tsum tsis txhob muab tso rau tom qab kev sib sau ua ke kuj tseem faintly tso tawm kom pom, kom nws nyeem tsis tau. Qhov laj thawj yuav yog:
A. Cov hmoov txhuas tsis huv, tsuas yog so nrog daim ntaub qhuav;
B. Cov huab cua ntub dhau, qhov saum npoo ntawm cov iav yog cov conductive, thiab nws tuaj yeem rov qab los tom qab ziab hauv tsev;
C. Cov khoom siv hluav taws xob ntau lossis cov ntu electrode raug tshem tawm, thiab tom qab rov sib dhos yog txhim khu kev qha, nws tuaj yeem raug tshem tawm;
D. Lub amplitude ntawm AC square nthwv dej yog asymmetrical, uas ua rau lub cutoff tsis meej thaum nws yog extinguished, thiab lub square yoj amplitude yuav hloov.
E. Thaum cov roj hmab conductive tsis yog square, tsis yog sib npaug, thiab cov rwb thaiv tsev ua haujlwm tsis zoo, cov roj hmab conductive yuav raug hloov ntev;
3. Tsis suav nrog qhov sib txawv ntawm qhov sib txawv: qhov sib txawv tsis zoo, lossis cov duab tsis zoo, lossis cov duab tsis meej pem, lossis tag nrho cov zaub, feem ntau yog vim qhov rov qab electrode ntab, tuaj yeem raug tshem tawm.
4. Tsis suav nrog cov khoom tsis meej pem: kev cuam tshuam sab nraud kuj tseem tuaj yeem ua rau cov duab tsis meej pem, thiab nws tuaj yeem raug tshem tawm.
5. Tsis suav nrog tag nrho cov lus qhia: Lub decoder yog ib txwm, tab sis tag nrho cov zaub, feem ntau lub nraub qaum electrode tsis txuas, los yog lub nraub qaum electrode tshwm DC.
6. Tsis suav nrog cov qauv uas ploj lawm: Yog vim li cas rau cov zaub uas ploj lawm yuav yog:
A. Kev sib kis ntawm cov electrode leads, uas ua rau kev sib tsoo tsis zoo;
B. Kev sib kis ntawm cov roj hmab conductive, ua rau kev sib txuas tsis zoo;
Ob yam khoom saum toj no tsuas yog yuav tsum tau ntxuav, thiab qhov chaw yuav tsum ntxuav tsis tuaj yeem kov ntawm tes.
C. Lub ntug ntawm lub khob yog tawg, thiab cov txheej txheem txhuas txheej yog khawb;
D. Lub rooj sib txoos xovxwm yog tsis tsim nyog;
7. Tsis suav nrog cov khoom siv random: Qhov ua rau cov khoom tsis zoo tuaj yeem yog: rov qab electrode ntab, tsav mus rau DC, lub zog hloov pauv, kev sib cuag tsis zoo, roj teeb lub zog, thiab lwm yam tuaj yeem raug cais tawm raws li qhov sib txawv.
8. Kev cais tawm tsis sib xws: kev ua haujlwm tsis zoo, tsis tuaj yeem hloov kho, qhov laj thawj yog vim li cas lub zog hluav taws xob hluav taws xob tsis zoo, lub roj teeb tau tag, koj yuav tsum hloov lub roj teeb lub sijhawm no.
2. Module troubleshooting: Yuav kom daws teeb meem, ua ntej ntawm tag nrho cov, muaj ib tug tej yam kev nkag siab ntawm lub module, thiaj li hais tias lub module yuav kho nrog ib nrab ntawm kev siv zog.
(1). Yam yuavtsum tau kawm uantej rau kev daws teebmeem:
1. Yuav kom sib sau cov module, koj yuav tsum muaj qee qhov kev nkag siab ntawm lub hauv paus ntsiab lus ntawm lub module, thiaj li yuav muaj teeb meem tom qab lub module tau sib sau ua ke. Piv txwv li, thaum ob lub SEG electrodes nyob rau ntawm ib lub nti pin tswj vaj huam sib luag ntawm lub PCB board, ib zaug ob SEGs ploj lawm los ntawm lub symmetry ntawm lub module, nws yuav xaus lus tias lub PCB board yog ib qho teeb meem.
2. Muaj kev nkag siab txog qhov muaj pes tsawg leeg ntawm lub module. Ib qho module, txhawm rau kom muaj cov khoom siv hluav taws xob zoo, lub plhaub, lub vijtsam, zebra strips, PCB pawg thawj coj saib yuav tsum tau tsim kom tsim nyog, cov khoom siv raw tsim nyog tau txais cov txiaj ntsig zoo. Xws li: zebra sawb compression piv tsis txaus, ua rau tsis muaj mob stroke, qhov teeb meem no rov qab sib dhos, kev ntseeg siab tsis zoo, ces nws yog ib qho tsim nyog los hloov cov zebra strip.
3. Txhawm rau paub qee yam kev txawj sib dhos, paub qee yam kev txawj hauv kev daws teeb meem, koj tuaj yeem ua ke thiab txo cov teeb meem sib dhos.
(2). Kev daws teeb meem yooj yim:
1. Qhia tsis meej pem rau kev cais tawm:
A. Misalignment: PCB board electrodes thiab screen electrodes tsis tuaj yeem yog ib qho kev sib txuas lus. Lub sijhawm no, qhov laj thawj ntawm kev tsis sib haum xeeb yuav tsum tau txheeb xyuas.
ib. Vim muaj teeb meem kev sib dhos hauv lub rooj sib txoos, nws yog ib qho tsim nyog yuav tsum rov ua dua.
b. Lub PCB mounting qhov tsis nyob rau hauv qhov tseeb.
c. Lub ntug ntawm qhov screen tsis yog qhov tseeb.
d. Lub plhaub sib dhos tsis raug.
B. Lub rooj tsavxwm PCB tawg. Nyob rau lub sijhawm no, cov cuab yeej kuaj xyuas tuaj yeem siv los kuaj lub rooj tsavxwm dua.
Kev cuam tshuam sab nraud kuj tseem tuaj yeem ua rau cov duab tsis meej pem, thiab tom qab ntawd txheeb xyuas cov kev cuam tshuam sab nraud thiab tshem tawm nws.
2. Tsis suav nrog cov ntsiab lus uas ploj lawm:
A. PCB pawg thawj coj saib electrodes muaj paug, ua rau tsis zoo ntawm cov zebra strips.
B. Cov kab zeb zeb zeb muaj kab mob, ua rau muaj kev sib cuag tsis zoo.
C. Cov hlau lead electrode yog paug, ua rau muaj kev sib cuag tsis zoo.
Peb cov khoom saum toj no tsuas yog yuav tsum tau muab ntxuav thiab rov ua dua. Thaum sib dhos, tsis txhob kov cov khoom ntxuav nrog koj txhais tes.
D. PCB board breakage, virtual soldering. Rov kuaj lub rooj tsavxwm ib zaug, yog tias nws tsis zoo, hloov lub rooj tsavxwm.
E. Lub vijtsam electrode tawg lossis lub vijtsam tawg lossis luv. Yuav tsum tau hloov qhov screen thiab rov sib dhos.
F. Lub plhaub ua tsis tiav thiab lub plhaub tau sib sau ua ke dua.
3. Tso saib tag nrho lossis tsis muaj xim dub: Qhov xwm txheej no feem ntau yog teeb meem nrog PCB pawg thawj coj saib, thiab lub rooj tsav xwm PCB yuav tsum tau rov ntsuas dua tom qab disassembly.
4. Cov kab tsis sib luag, ntiav: qhov xwm txheej no tsuas yog txiav txim tau yog tias nws ua tib zoo txheeb xyuas nws.
A. Lub module tsis muaj qhov sib npaug, tab sis cov xaim tsis zoo. Qhov xwm txheej no feem ntau yog vim li cas rau qhov screen, rov ua dua tom qab hloov tshiab.
B. Qee qhov kev qhia tsis sib xws. Nyob rau hauv cov ntaub ntawv no, tus zebra sawb feem ntau distorted, ua rau tsis zoo kev sib cuag. Tom qab tshem tawm yuav tsum tau, cov zebra strips yog nteg tiaj tus thiab sib sau ua ke dua. Yog tias nws tsis tuaj yeem txiav txim siab, nws yog qhov yuav tsum tau txheeb xyuas lwm yam, xws li zebra sawb qhov siab thiab qhov dav piv tsis haum, qhov sib piv compression tsis haum, thiab cov conductive bandwidth tsis haum.
C. Lub rooj tsavxwm PCB yog me ntsis soldered. Tshem tawm lub rooj tsavxwm PCB, ntsuas lub rooj tsavxwm PCB, thiab rov ua dua.
5. Ib nrab sib sib zog nqus thiab ib nrab ntiav, tsis muaj kev pab cuam, kev ua haujlwm txawv txav, tsawg dua los yog ob peb lub vijtsam, tsis muaj sijhawm, duab ntxoov ntxoo, thiab lwm yam.
Qhov tshwm sim no feem ntau yog teeb meem nrog PCB pawg thawj coj saib. Nws yog ib qho tsim nyog yuav tau tshem tawm lub PCB board los ntsuas lub PCB board. Reassemble nrog PCB zoo.
