Trying to replace a blown capacitor
Hello all,
I'm new to Macs, but I just picked up a Macbook for super cheap due to 3 blown capacitors. I just got a brand new soldering station, the Weller WES51, with a very small tip, so I've got most of the necessary equipment. The blown capacitors in question are SMD, very very small. One of the capacitors I'm having trouble with. I desoldered it, but I'm not sure how the orientation should be for the new one. I've posted a picture where it should be. It looks like the right pad is missing, but I'm not sure. Can I just solder one end of the capacitor to the ball at the end of the metal strip, as shown in the picture? The strip extends from beneath one of the pins on the keyboard connector. Can anyone confirm this? Or, is there any way someone could post a high-resolution image from their Macbook white logic board?
Thanks for any help!
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2 件のコメント
Hi, your picture(s) is/are not showing up. How do you know the 3 known bad components are capacitors or that they are bad? How did you choose and acquire your new parts to solder on? On the 2.4Ghz early 2008 board the only component with 2 connections, near the keyboard header is an inductor with a 402 package size. It has one trace coming from the sub-levels of the board and shares a trace with a pad for the keyboard socket. If you are trying to solder on this board without optics that you can allow you to see if a pad is missing or not you may not end up with a good deal - you could actually end up destroying the board. What is the last 3 characters of your laptop serial number?
ABCellars さんによる
Thanks a ton for replying. Odd the pictures didn't appear. Here's a larger view http://tinypic.com/view.php?pic=21mceuo&... and a close view here http://tinypic.com/view.php?pic=4gnqdz&s....
I received the computer from a guy who damaged the computer himself. He had it open while it was on. He claimed he blew three capacitors after touching the keyboard (metal) to the motherboard. He pointed them out. They were obviously blown, they were physically burnt. All I have is his word, really.
The one component in question I wan't sure if it was a capacitor. The other two appeared to be the little black-banded SMD capacitors. They were in a group of the same black banded capacitors and looked identical. I planned on unsoldering the black banded capacitors from a different, working board and using them to replace the burned ones. The last three serial numbers of the macbook is 0p1.
Even if there might not be a ton of hope for the board, I'd like to do my best to repair it.
Again, thanks so much for your help.
Evan さんによる