• Lenovo 15ADA05 - brak podświetlenia

Forum rules:Click here to view the forum rules

  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.
  3. Before posting a new topic please read all topics in TRAININGS subforum and make a preliminary diagnostic based on the content of those trainings.
  4. Uploading of any complete schematics, BIOS / firmware files or any other kind of documentation, or linking to 3rd party websites with such files, is STRICTLY PROHIBITED. You can only upload the small portion of documentation or, link to BIOS file on UNVERIFIED BIOS FILES subforum, which simplifies the diagnostics/repair. You are not allowed to upload more then one complete page of instruction/schematic per single topic. The file you upload must not contain any watermarks, "confidential" markings, links or email addresses and cannot be password-protected.
  5. It is only permitted to describe one faulty device per single topic - you should always open a new topic for each subsequent device.
  6. Requesting of the full schematics, BoardView files, BIOS files or any other kind of documentation is NOT ALLOWED in this subforum. If you need to ask for any of these, you should open a new topic in DOCUMENTATION/BIOS REQUEST subforum.
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
This topic is marked as ARCHIVAL. Please only reply if your message contains the solution (Terms and Conditions p. 12.1).

Who is online

Users browsing this forum: No registered users and 3 guests

_______________________________
All rights reserved. Unauthorised copying of this website's content or any of its part is strictly forbidden.
Any trademarks, brand names, products or services published on this website belong to their legal owners, are copyrighted and used for information purposes only.