• ASUS X553M - brak oznak życia

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  1. Topic title should contain: the device's manufacturer, full model and the brief description of problem.
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#1 ASUS X553M - brak oznak życia


by pawel1978 6 August 2024, 13:46
Witam. Na stole Asus X553M mb: X553MA. Po podłączeniu zasilania 0 poboru prądu, brak rekcji na włącznik. Pierwszy mosfet za gniazdem zasilania - napięcie na drenie 19C na bramce i źródle 0. Wymieniłem go na AON7701A ... teraz pomiar wskazuje 19V na drenie i 1,75V na bramce i źródle ... drugi klucz wygląda na sprawny. Proszę o pomoc w znalezieniu usterki.

Re: ASUS X553M - brak oznak życia


by Google Adsense [BOT] 6 August 2024, 13:46

#2 Re: ASUS X553M - brak oznak życia


by tekort 12 August 2024, 10:09
Zacznij od dokładnych oględzin wizualnych płyty, może uda Ci się zlokalizować zwarty element. Zmierz też rezystancje na wszystkich cewkach płyty i podaj tu. Jeśli mosfety wejściowe są sprawne (test diody\rezystancja), to zwarcie w innej części płyty może powodować brak zasilania\reakcji. Możesz też zmierzyć kondensatory w liniach zasilania typu B+, 3,3V, 5V itd. gdzieś pewnie będzie zwarcie.

Sprzęt nie jest też pierwszej świeżości, a płyta jest dosyć prosta i zazwyczaj zwarty kondensator może powodować taki problem.

#3 Re: ASUS X553M - brak oznak życia


by Vogelek23 12 August 2024, 13:02
Proszę zmierzyć rezystancję do masy na dowolnym pinie rezystora PR8806 (zasilanie całkowicie odłączone na czas pomiaru). Lokalizacja rezystora poniżej.
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Re: ASUS X553M - brak oznak życia


by Google Adsense [BOT] 12 August 2024, 13:02
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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