Repariere deine Sachen Community Store

1,8 GHz Dual-Core Intel Core i5 (Turbo Boost bis 2,8 GHz) mit 3 MB geteiltem L3-Cache

371 Fragen Alle anzeigen

Einstellungen

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

Diese Frage beantworten Ich habe das gleiche Problem

Ist dies eine gute Frage?

Ja Nein
Bewertung 1
Einen Kommentar hinzufügen

2 Antworten

Filtern nach:
Am hilfreichsten Neueste Älteste

Einstellungen

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

War diese Antwort hilfreich?

Ja Nein
Bewertung 0
Einen Kommentar hinzufügen

Einstellungen

@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

War diese Antwort hilfreich?

Ja Nein
Bewertung 0
Einen Kommentar hinzufügen

Antwort hinzufügen

Recycler1 wird auf ewig dankbar sein.
Seitenaufrufe:

Letzte 24 Stunden: 0

Letzte 7 Tage: 0

Letzte 30 Tage: 3

Insgesamt: 93