• Laptop Acer An515-51-5491 płyta LA-E911P rev.1A zwarcie na 19V

It is currently 14 December 2024, 02:42

 [SOLVED] Laptop Acer An515-51-5491 płyta LA-E911P rev.1A zwarcie na 19V

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#1 Laptop Acer An515-51-5491 płyta LA-E911P rev.1A zwarcie na 19V

by Krzys • 28 May 2024, 12:24
Na stole laptop Acer An515-51-5491 płyta LA-E911P rev.1A ma zwarcie na PR304 czyli zasilanie 19V. Przeprowadziłem próbę zwarciową przy 1V ale przy tym napięciu brak zwarcia, a prą pobierany 0,077A. Ustawiłem napięcie na 3V i tu podwyższając prąd przy jakimś 0,8A grzeje się grafika.
Czy grafika może być uszkodzona ?

Re: Laptop Acer An515-51-5491 płyta LA-E911P rev.1A zwarcie na 19V

by Google Adsense [BOT] • 28 May 2024, 12:24

#3 Re: Laptop Acer An515-51-5491 płyta LA-E911P rev.1A zwarcie na 19V

by Krzys • 28 May 2024, 15:17
Zalazłem uszkodzony mosfet w gałęzi +19VB_GPU_NVVDDS. Zamówiłem i dam znać czy ruszyło.

#4 Re: Laptop Acer An515-51-5491 płyta LA-E911P rev.1A zwarcie na 19V

by Krzys • 26 June 2024, 17:51
Wymieniłem mosfet PQ1602 który robił zwarcie. po włączeniu niby było wszystko OK ale po załączeniu laptopa znów mosfet uległ uszkodzeniu.
Jeszcze uszkodzony był PU1601, po wymianie układu i mosfetu laptop ożył.

Re: Laptop Acer An515-51-5491 płyta LA-E911P rev.1A zwarcie na 19V

by Google Adsense [BOT] • 26 June 2024, 17:51
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