• Asus G553VD - jakie napięcie podświetlenia klawiatury?

It is currently 14 December 2024, 08:41

Asus G553VD - jakie napięcie podświetlenia klawiatury?

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#1 Asus G553VD - jakie napięcie podświetlenia klawiatury?

by grzmotek • 3 January 2024, 11:58
Witajcie , dostałem laptopa (po kimś) Asus G553VD z wymienioną klawiaturą z podświetleniem RGB na jednokolorową Czerwoną. Klient chciał by jednak podświetlenie uruchomić, nawet na stałe ( z tym sobie poradzę) .
Problem tkwi w tym, że nie wiem na jakie napięcie jest podświetlenie bo klawiatura świeci już od 2,2V, a nie mam z czym tego porównać, .

MODEL:Asus GL553VD-DM254T
PCB: GL553VD rev:2.0

Re: Asus G553VD - jakie napięcie podświetlenia klawiatury?

by Google Adsense [BOT] • 3 January 2024, 11:58

#2 Re: Asus G553VD - jakie napięcie podświetlenia klawiatury?

by matic • 3 January 2024, 21:04
Hello!

There are only LED diodes inside the keyboard (without a driving circuit), so they must be powered with a constant current (not voltage).

Connect the keyboard backlight to the laboratory power supply and slowly increase the current from 0A upwards, until you reach the current of 120mA (0.12A). Read the voltage from the laboratory power supply, when you reach the target current of 120mA.

#3 Re: Asus G553VD - jakie napięcie podświetlenia klawiatury?

by grzmotek • 4 January 2024, 13:46
Dzięki . Przy 120mAh jest 2,9V , jasność wydaje się mniej więcej polowe słabsza w porównaniu do czerwonego podświetlenia w Acer Nitro 5.

#4 Re: Asus G553VD - jakie napięcie podświetlenia klawiatury?

by matic • 4 January 2024, 20:39
If so, the keyboard backlight is probably designed to be connected directly to 5V.
Repeat the test with a laboratory power supply. This time rise up the current limit to about 280mA and read the voltage from the power supply in this case.
If you get a voltage of about 5V, you can connect the keyboard backlight directly to the 5V.

Re: Asus G553VD - jakie napięcie podświetlenia klawiatury?

by Google Adsense [BOT] • 4 January 2024, 20:39
 This topic is marked as ARCHIVAL. Please only reply if your message contains the solution (Terms and Conditions p. 12.1).
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