Released June 2012, Model A1278. Intel processor with Turbo Boost, Up to 512 MB DDR5 Video RAM

1109 Questions View all

Can you identify this blown component?

My MacBook Pro started smoking when plugged into the charger. The smoke was coming from the back, about 1.5 inches from the power connector on the bottom of the logic board. It looks like the brown component in the photo has exploded (right end black and charred).

So what is that - a capacitor? what spec?

I expect the local repair places will just want to replace the entire board.

Block Image

Answered! View the answer I have this problem too

Is this a good question?

Score 1


With the help of someone better at soldering than me, we replaced the capacitor. No smoke, but the laptop is still dead. I guess something else went wrong that caused the capacitor to blow. Time for a new logic board.


Add a comment

2 Answers

Chosen Solution

That would be C3898 is a capacitor with the following specs:


1206 package


50V voltage

10% tolerance

All depends of the repair shop, if they have the equipment to remove and replace this. Not difficult.

Was this answer helpful?

Score 1
Add a comment

i can see more than one caps with green corrosion signs, plz try replacing them too

Was this answer helpful?

Score 0
Add a comment

Add your answer

Bruce Webster will be eternally grateful.
View Statistics:

Past 24 Hours: 0

Past 7 Days: 0

Past 30 Days: 1

All Time: 68