Txhawm rau txiav txim siab seb lub vijtsam xauj tsev LED xav tau kho lossis hloov pauv, cov hauv qab no yuav tsum xav txog:
I. Kev ua tau zoo ntawm cov zaub:
1. Ntau dhau Brightness degradation
Thaum lub zuag qhia tag nrho los yog lub zos brightness ntawm lub screen xauj tsev yog ho qis dua tus nqi pib (xws li, degradation tshaj 30%), nws yuav ua rau tsis zoo saib los ntawm ib tug deb. Qhov no feem ntau yog tshwm sim los ntawm kev laus ntawm LED, tsis muaj zog txaus rau tus neeg tsav tsheb Circuit Court, los yog cua txias tsis ua haujlwm. Brightness meter cov ntaub ntawv yuav tsum tau siv rau kev sim; Yog tias qhov nruab nrab qhov ci ntsa iab qis dua 70% ntawm tus nqi nominal, tus tsav tsheb yuav tsum tau kho lossis hloov lub vaj huam sib luag LED.
2. Xim hloov lossis xim txawv txav
Yog tias lub vijtsam xauj tsev LED qhia pom cov xim tsis sib xws hauv zos lossis tag nrho cov xim kub sib txawv (xws li, txias dhau / sov dhau), nws cuam tshuam ncaj qha rau kev tsim cov xim. Cov teeb meem no feem ntau tshwm sim los ntawm qhov tsis sib xws ntawm LED chromaticity degradation, poob ntawm cov ntaub ntawv calibration, lossis teeb liab cuam tshuam. Ib tus kws tshaj lij colorimeter yuav tsum tau siv los txheeb xyuas chromaticity kev sib txawv (Δuv> 0.01) los yog brightness uniformity (<80%), and then the problem should be solved through calibration or module replacement.
3. Tuag Pixels/Cov kab mob sib kis
If one or more LEDs are not lit and the number increases rapidly over time (e.g., more than 5% increase per week), it indicates defects in the LED packaging or overload of the driver circuit. If the dead pixel rate of the LED rental screen exceeds industry standards (e.g., >0.01% rau cov ntxaij vab tshaus hauv qab P2.5), tag nrho LED vaj huam sib luag yuav tsum tau hloov los tiv thaiv kev sib kis ntawm cov khoom tsis zoo.
II. Mechanical Structure Faults:
1. Lifting System Stuttering / suab nrov txawv txav
Yog hais tias lub vijtsam xauj tsev LED pom muaj kev cuam tshuam, tshee, lossis lub suab sib txhuam hlau thaum lub sijhawm nqa, nws feem ntau yog tshwm sim los ntawm kev taw qhia rail deformation, iav hnav, lossis lub cev muaj zog tsis zoo. Yog hais tias lub sij hawm nqa lub sij hawm sib txawv ntau tshaj 10% (xws li nominal 5 vib nas this tab sis tiag tiag 7 vib nas this), los yog qhov zaus ntawm cov suab nrov txawv txav nce nrog tus naj npawb ntawm kev siv, cov khoom sib kis yuav tsum tau hloov tam sim ntawd los tiv thaiv cov khoom tsis ua hauj lwm.
2. Loose Txee Txuas
If there are gaps, misalignment, or shaking at the splicing points of the LED rental screen, it is mostly due to wear of the quick-release fasteners, deformation of the positioning pins, or insufficient installation torque. If the gap width is >1mm or the misalignment is >0.5mm, nws yuav ua rau cov dej tsis ua haujlwm lossis cov qauv kev ntxhov siab. Cov khoom sib txuas yuav tsum tau nruj nruj los yog qhov chaw puas lawm los hloov kom muaj kev nyab xeeb . 3. Txo Kev Tiv Thaiv Kev Ntsuas
Yog tias lub vijtsam xauj tsev LED siv nyob rau hauv ib puag ncig sab nraum zoov thiab ntsib cov dej xau, cov khoom siv hauv tsev, lossis cov plua plav plua plav, nws qhia tau tias cov sealant aging lossis deformation ntawm lub casing. Yog tias qhov ntsuas IP tiv thaiv poob los ntawm IP65 mus rau qis dua IP43, nws tuaj yeem ua rau muaj kev puas tsuaj rau cov dej noo thiab luv luv hauv cov khoom siv hluav taws xob. Lub vijtsam yuav tsum tau muab rov qab los yog hloov lub casing kom rov qab tau nws txoj kev tiv thaiv.
III. Hluav taws xob Safety Risks:
1. Txo rwb thaiv tsev tsis kam
Yog hais tias lub rwb thaiv tsev tsis kam ntawm lub hwj chim qaum thiab cov hlau casing yog<1MΩ (normally >50MΩ), nws tuaj yeem ua rau xau lossis luv luv Circuit Court txaus ntshai. Cov teeb meem no feem ntau tshwm sim los ntawm kev laus txuas, kev sib txuas xoob, lossis cov khoom tawg. Lub vijtsam xauj tsev LED yuav tsum raug kaw tam sim ntawd thiab kuaj pom qhov cuam tshuam qhov cuam tshuam.
2. Kev txhaum
If the grounding wire resistance is >0.1Ω los yog hauv av xaim raug rho tawm, nws yuav ua rau lub zog tam sim no tsis muaj zog thaum lub sij hawm xob laim lossis xau, ua rau muaj kev phom sij rau cov neeg ua haujlwm kev nyab xeeb. Yog li ntawd, thaum lub vijtsam xauj tsev LED ntsib qhov txhaum hauv av, qhov kev tiv thaiv hauv av yuav tsum tau ntsuas nrog megohmmeter. Yog tias nws dhau qhov kev txwv, cov xaim hauv av yuav tsum tau rov ua dua - soldered lossis lub davhlau ya nyob twg hloov.
3. Fais fab Module Overheating
If the power supply surface temperature is >65℃(nquag<50℃) or the screen frequently restarts, it is usually caused by bulging capacitors, dried electrolyte, or aging power components. In this case, the power module of the LED rental screen needs to be replaced to avoid cascading failures (such as driver IC burnout).
Hauv cov ntsiab lus, peb tuaj yeem pom tau tias los ntawm kev txheeb xyuas cov kev ua haujlwm tsis zoo, cov qauv tsim teeb meem, thiab hluav taws xob muaj kev nyab xeeb, peb tuaj yeem tshawb xyuas qhov tseem ceeb rau kev kho thiab hloov cov ntxaij vab tshaus LED. Qhov no undoubtedly muab ib tug ruaj khov thiab txhim khu kev qha guarantee rau lub du ua hauj lwm ntawm ntau yam txheej xwm, kom ntseeg tau tias cov txheej xwm tau ntse tuav nrog kev nyab xeeb thiab ruaj khov kev nthuav qhia.
