• Prośba o identyfikację elementu LB720 / 16877-1M / 448.0CJ03.001M Ideapad 720-15ISK

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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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#1 Prośba o identyfikację elementu LB720 / 16877-1M / 448.0CJ03.001M Ideapad 720-15ISK


by kolikolikoli 3 July 2024, 15:52
Dzień dobry. Proszę o identyfikację spalonego elementu na płycie. Jest dostępny schemat teoretycznie do tej płyty, ale coś się nie bardzo zgadza.

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Re: Prośba o identyfikację elementu LB720 / 16877-1M / 448.0CJ03.001M Ideapad 720-15ISK


by Google Adsense [BOT] 3 July 2024, 15:52

#2 Re: Prośba o identyfikację elementu LB720 / 16877-1M / 448.0CJ03.001M Ideapad 720-15ISK  [SOLVED]


by Vogelek23 3 July 2024, 17:18
PU4301 = AON7403.

kolikolikoli wrote:Jest dostępny schemat teoretycznie do tej płyty, ale coś się nie bardzo zgadza.
Wersja 1M, którą mamy na forum (post265478.html#p265478) zgadza się z tą płytą.

#3 Re: Prośba o identyfikację elementu LB720 / 16877-1M / 448.0CJ03.001M Ideapad 720-15ISK


by kolikolikoli 4 July 2024, 22:26
Dziękuję za pomoc. Element wymieniony, dodatkowo zwarty jeszcze jeden z kondensatorów - wymieniony i płyta dziala.

Re: Prośba o identyfikację elementu LB720 / 16877-1M / 448.0CJ03.001M Ideapad 720-15ISK


by Google Adsense [BOT] 4 July 2024, 22:26

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