Keyboard backlighting tsuas yog muaj nyob ntawm qee lub laptop qauv xwb. Tsis muaj ib qho tsis ntseeg, qhov no yog qhov kev xaiv yooj yim heev uas tso cai rau koj mus ua haujlwm kom xis nyob txawm nyob hauv kev tsaus ntuj. Yog tias koj tau txhaub qaum, koj yuav tsum paub yuav ua li cas thiaj tig los tau.
Cov Lus Qhia
Kauj ruam 1
Cov keyboard backlight tig tau thaum koj nias lub Fn tus yuam sij thiab ib qho ntawm cov yuam sij ntxiv. Tus yuam sij tig los yog nyob ntawm lub laptop qauv.
Kauj ruam 2
Feem ntau, qhov yuav tsum tau ua ke tseem ceeb tuaj yeem txiav txim siab pom kev, txij li cov tuam ntxhab muab cov cim ntxiv ntawm cov yuam sij ntxiv (F1 - F12 kab yog siv). Cov xim ntawm cov cim no yog tib yam li daim ntawv lo ntawm Fn yuam. Kev sim los ntawm nias lub pob txuas ntxiv nrog Fn. Saib rau kab kos duab nrog cov cim backlit keyboard.
Kauj ruam 3
Thov nco ntsoov tias thaum koj nias cov yuam sij, koj tuaj yeem siv lwm txoj hauv kev - kaw lub vijtsam, nkag mus rau hom pw tsaug zog, thiab lwm yam. Txhawm rau rov qab koj qhov hloov pauv, nias tib lub ntsiab lus tseem ceeb dua.
Kauj ruam 4
Yog tias cov duab kos ntawm cov yuam sij tsis tso cai rau koj txheeb xyuas qhov xav tau ua ke, thaum koj paub tseeb tias cov keyboard backlight ntawm koj lub laptop yog, sim cov kev sib txuas hauv qab no:
- Fn + F6 lossis Fn + txoj xub;
- Fn + COJ (chaw);
- Fn + F5.
Kauj ruam 5
Thaum koj lub laptop tsis muaj lub keyboard backlight, koj tuaj yeem ua lub teeb nrig sab nraud los ntawm koj tus kheej siv +5 V zog los ntawm USB txuas thiab ib lossis ntau LEDs dawb. Hauv qhov txuas, koj xav tau ob lub pob tawm sab nraud (sab laug thiab sab xis). Qhov ntsuas hluav taws xob ntawm lub LED dawb yog 3.5 V. Qhov no txhais tau hais tias lub resistor xav tau ntawm qhov uas ntxiv 1.5 V yuav tsum tau tua. Qhov tam sim no LED yog 20 mA, lossis 0.02 A. Tom qab ntawd qhov tsis kam ntawm lub ntsuas ntxiv yuav yog 1.5 V / 0.02 = 75 Ohm.
Kauj Ruam 6
Yog hais tias lub teeb ci ntawm ib qho LED tsis txaus, txuas lwm tus nrog tib lub ntsuas hluav taws xob hauv kev sib txig. Nco ntsoov xyuas cov tam sim no siv ntawm cov LEDs, vim nws qhov txawv ntawm 18-20 mA cuam tshuam tsis zoo lub neej ntawm LED. Teeb qhov yuav tsum tau tam sim no los ntawm xaiv tus tiv taus. Qhov chaw txuas USB muaj peev xwm xa mus txog 0.5 A, uas txhais tau hais tias muaj txog 25 LEDs tuaj yeem siv los ntawm nws.
