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dell vegas 15341-1 lipsa EN ALWSON


elman

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Va salut, am un laptop Dell Inspiron de 15 am gasit schema sub denumirea dell vegas 15341-1 . Laptopul nu porneste , nu furnizeaza 3,3V ALWS si 5V ALWS din cauza ca nu primeste enable de la EC (ALWON). Circuitul ISL furnizeaza ACOK pentru EC dar EC nu mai furnizeaza ALWON pentru sursa 3,3V si 5V ALWS construita cu TPS51225. EC se alimenteaza cu 3V din 3VLDO de la TPS51225 . Pe butonul de power am 3V si ajunge la EC. 

Spuneti-mi va rog ce alte conditii pot inhiba EC a.i. sa nu furnizeze ALWON? M-am uitat pe schema, pe PLS dar nu-mi dau seama sau este defect EC.

Nu am atasat schema completa pentru ca fisierul este mare.

PS. nu am putut incarca mai multe poze, 

Multumesc anticipat.

 image.thumb.jpeg.518e460566c5e36b55ad35bd3a3673c1.jpegimage.thumb.jpeg.1665427f7e4ddc8153b4cb49bc2d7c13.jpegimage.thumb.jpeg.a60a65256657c68753404c9c7143f89e.jpeg

Edited by elman
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