기기를 수리하세요 커뮤니티 상점

3MB 공유 L3 캐시 1.8GHz 듀얼-코어 Intel Core i5 (Turbo Boost 최대 2.8GHz)

371 질문 전체 보기

옵션

Blown A1 V7A capacitor

Block Image

I was working on my laptop (MBA 13" 2012 w/Core i7 2Ghz) yesterday and suddenly there was a loud pop, dead screen. Thought it was a blown capacitor. Opened the back and found it immediately, see pic. Does anyone know why this would have gone? It looks like a voltage regulator circuit and there are many of these all over the board. Could it have been static discharge? It is very dry where I live. Just want some peace of mind and edification on the potential cause. I think the cap has been ID'ed as a 62UF 11V 20% capacitor in a CASE-B2 package in another post, but not the same circuit. Thanks!

Block Image

이 질문에 답하기 저도 같은 문제를 겪고 있습니다

좋은 질문 입니까?

예 아니요
점수 1
댓글 달기

답변 2개

필터:
가장 유용함 가장 최근 가장 오래된

옵션

More likely a slight defect that just finally failed Tantalum capacitor are known to just go!

해당 답변은 도움이 되었습니까?

예 아니요
점수 0
댓글 달기

옵션

@recycler1 your "62UF 11V 20% capacitor in a CASE-B2 package" is correct and the capacitor is part of the 1.5DDR3 supply. I suggest to check there for a short and check PPVIN_S3_DDRREG as well since it connects right to C7331. Replace the cap and see what happens next.

Block Image

해당 답변은 도움이 되었습니까?

예 아니요
점수 0
댓글 달기

귀하의 답변을 추가하세요

Recycler1 님은 대단히 고마워 할 것입니다.
조회 통계:

24 시간 전: 0

7일 전: 2

30일 전: 5

전체 시간: 96