What are these components named or be identified when shopping for?
So to make a long story short, I have here a MacBook Pro A1286 K91F 15" and it will not power on at all. I've tried the power pads after checking all connections and troubleshooted the DC in jack. Charging light shows. So after closer inspection I noticed two small components are missing from the board that I cannot identify properly because I lack the technical understanding of the cryptic naming system involved with these components. Being brave(as usual), I obtain the schematic and .brdview file and decide to look up the two components. Here is what I have so far. Any suggestions as to where and what I am looking for when going to digikey.com to order these?
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9 件のコメント
+ You are correct Old Turkey, in my original answer I forgot to add a zero on the inductor ratings. I've been out of the mix for a while - rehabbing houses and playing the piano. I haven't repaired anything for a few years that doesn't involve wood, plumbing, older HVAC, or house electrical. All of which have been very therapeutic. I was bunt out working on electronics and laptops, I needed to walk away for a while to get my head on straight. I am in the process of putting together an electronics workbench again. It is something I can do well. I just need to remember to put some fun into my life, not just work. Thank you for locating this persons parts. Have a wonderful day!
ABCellars さんによる
Both parts are available at Mouser.com. The capacitor can be found here, and the inductor that can be used, is right here. Total cost for the parts around $ 0.50USD Shipping will be far more than the parts, but cheaper than a board.
oldturkey03 さんによる
You've always been awesome Oldturkey03. Thank you so much. That and now I have a new website to search for parts on. :) :) Thumbs up!!
Justin Aka Taco さんによる
Hey Justin Taco--just stopping by to say well done on grabbing your schematic and boardview. That is great to see in the DIY community!
I'll also add that these parts aren't really likely to be the cause of your failure. If you think about it, most tiny capacitors act in the function of signal filter of some sort, their loss will hardly bring a laptop to it's knees. And the other--an inductor coil---well, there's a reason that I had T-shirts made up that say "It's never the coil"
Keep going though! Look for visible damage to be your first guide, if you see none, then start measuring your major power rails from your schematic, and then when you find missing ones, test for shorts to ground. Come back and update this question when you need more help!
Congratulations on getting this far!
Jessa
jessabethany さんによる
Update: I'll definitely be looking at the power rails today as I do have a bit of spare time. There's definitely no signs of visible damage. Which is one of the reasons I haven't thrown out in all this New England snow yet. I'll post as soon as soon as I can today.
Justin Aka Taco さんによる
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