• MAcbook Air 2179 820-01958 - Nie przełącza się na 20V, nie działa

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MAcbook Air 2179 820-01958 - Nie przełącza się na 20V, nie działa

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#1 MAcbook Air 2179 820-01958 - Nie przełącza się na 20V, nie działa

by poster • 29 January 2026, 15:11
MAcbook Air 2179
płyta 820-01958

Sprzęt martwy. Po podpięciu ładowarki na obu gniazdach działą tylko w trybie 5V. Nie przełącza się na 20V.
Na pierwszym gdnieździe USBC pobór 0.35A: nagrzewa się U3200 oraz U3900 (do ok. 37 C)
Na drugim gnieździe 5V ale brak poboru prądu.

Po wylutowaniu U3200 grzeje się tylko chip U3900 (T2), na mierniku 5V i pobór 0.25A.

Nie ładuje baterii.

Proszę o pomoc w dalszej diagnozie. Czy płyta powinna odpalić z pierwszego portu z wylutowanym chipem U3200?

Re: MAcbook Air 2179 820-01958 - Nie przełącza się na 20V, nie działa

by Google Adsense [BOT] • 29 January 2026, 15:11
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