• Lenovo 15ADA05 - brak podświetlenia

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  1. Topic title should contain: the device's manufacturer, full model and the brief description of problem.
  2. Topic message should contain: the PCB marking code (required in case of hardware repairs), an extended description of problem, things you have checked/replaced/measured, your conclusions and the question. If you are not able to find the PCB marking code, please read THIS TOPIC. If you still cannot locate the PCB markings, please upload a clean, both-side photos of the mainboard - it is required to remove any films, modules or brackets possibly covering these markings.
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This topic is marked as ARCHIVAL. Please only reply if your message contains the solution (Terms and Conditions p. 12.1).

#1 Lenovo 15ADA05 - brak podświetlenia


by krzysztof000 11 April 2024, 20:39
Witam,

Model laptopa: Lenovo 15ADA05
Model płyty głównej: NM-C821 Rev 1.0

Usterka: brak podświetlenia, coś tam przy latarce widać na matrycy. Matryca i taśma była podmieniona i jest taki sam problem. Laptop na monitorze zewnętrznym działa prawidłowo.

Gdzie szukać rozwiązania?

Re: Lenovo 15ADA05 - brak podświetlenia


by Google Adsense [BOT] 11 April 2024, 20:39

#2 Re: Lenovo 15ADA05 - brak podświetlenia


by xamledyD 11 April 2024, 20:50
Witam.
Bezpiecznik F2 przy gnieździe matrycy na płycie głównej był sprawdzony?
Pozdrawiam

#3 Re: Lenovo 15ADA05 - brak podświetlenia


by krzysztof000 11 April 2024, 21:11
Rezystancja do masy na pinie 1 bezpiecznika F2 = 3.6721MΩ
Rezystancja do masy na pinie 2 bezpiecznika F2 = 10.231MΩ
Pomiary bez podłączonej taśmy matrycy.
Na podłączonej taśmie do matrycy też jest podobnie.

#4 Re: Lenovo 15ADA05 - brak podświetlenia


by Vogelek23 11 April 2024, 23:28
krzysztof000 wrote:Rezystancja do masy na pinie 1 bezpiecznika F2 = 3.6721MΩ
Rezystancja do masy na pinie 2 bezpiecznika F2 = 10.231MΩ
Wymień bezpiecznik F2, bo jest przepalony.

#5 Re: Lenovo 15ADA05 - brak podświetlenia


by krzysztof000 12 April 2024, 07:27
A jakie ma parametry? Gdzie mogę taki znaleźć? Jakiś zamiennik?

#6 Re: Lenovo 15ADA05 - brak podświetlenia


by xamledyD 12 April 2024, 11:18
Parametry według schematu: 32 V, 3 A, obudowa 0402.
Przykładowy odpowiednik dostępny w TME, na Allegro i innych polskich sklepach: ERBRD3R00X.
Pozdrawiam

Re: Lenovo 15ADA05 - brak podświetlenia


by Google Adsense [BOT] 12 April 2024, 11:18
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