Diode or transistor fell off.

Question

MacBook Pro 13インチ Unibody Early 2011

2011年初期のモデル。モデル番号はA1278 / 2.3 GHz i5 or 2.7 GHz i7 プロセッサー。

784回答すべてを表示

Mohammed Afnan @mohammedafnan

評価: 11

投稿日: 2013年9月11日

オプション

Diode or transistor fell off.

Hello everyone. Let me start by thanking you for your help in advance.

A friend of mine had opened his MacBook for cleaning, and for some reason the part in the yellow circle had fallen off of the motherboard. Now the laptop doesn't even wanna turn on.

Is there anyway someone can tell us the exact number of that diode/transistor? Or if there is anyway it can be bypassed? A picture would be very helpful. Thanks again.

http://tinypic.com/r/2s7x5dy/5

回答がありました！ 回答を表示同じ問題があります

この質問は役に立ちましたか？

はいいいえ

スコア 0

3 件のコメント

Here's a better picture of the logic board where the component came from Image from Logic Board Replacement Guide

Dan さんによる2013年9月11日

Mohammed Afnan, by covering up the numbers, you make it difficult to establish exactly what logic board number this is. @Dan, thanks this will help.

oldturkey03 さんによる2013年9月11日

Thank you, Dan. It's the one around the right top corner of the RAM with number 330

Mohammed Afnan さんによる2013年9月11日

コメントを追加

3件の回答

ベストアンサー

Dan @danj

評価: 480.3千

Self employed contract worker

35

330

971

投稿日: 2013年9月11日

オプション

Looking at both your image and the IFIXIT image it appears to be an inductor and labeled 330. Looking at the schematic for this system I do find an inductor L7760 10UH-0.55A-330MOHM.

このアンサーは役に立ちましたか？

はいいいえ

スコア -1

4 件のコメント:

@Dan, 330 is the 3-digit identification on a surface-mount inductor. It means the figure "33"in Henry's and "0" trailing zero's, hence 33UH. The L7760 would bear the marking "100"

oldturkey03 さんによる2013年9月11日

OT - I just copied it from the schematic as it was presented ;-} My EE schooling years ago taught me all about RTL, DTL & TTL logic. Got into CMOS and early SMD stuff on my own & early employment. Today, I mostly swap parts, as most in-house techs do. At home I'll do some simple stuff with an iron.

Dan さんによる2013年9月12日

Dan, no harm no foul. I totally understand what you are saying. all this is just a hobby for me so I try to stay up with all the new developments. Personally I love tubes and "big" components, that small stuff needs all kinds of small tools and meters ;-) expensive hobby.

oldturkey03 さんによる2013年9月12日

Gentlemen, thank you so much for your help. I've tried to find the same exact inductor with no luck. What are my options (if any)? Thank you.

Mohammed Afnan さんによる2013年9月13日

コメントを追加

Here's a better picture of the logic board where the component came from Image from Logic Board Replacement Guide — Dan
Mohammed Afnan, by covering up the numbers, you make it difficult to establish exactly what logic board number this is. @Dan, thanks this will help. — oldturkey03
Thank you, Dan. It's the one around the right top corner of the RAM with number 330 — Mohammed Afnan
@Dan, 330 is the 3-digit identification on a surface-mount inductor. It means the figure "33"in Henry's and "0" trailing zero's, hence 33UH. The L7760 would bear the marking "100" — oldturkey03
OT - I just copied it from the schematic as it was presented ;-} My EE schooling years ago taught me all about RTL, DTL & TTL logic. Got into CMOS and early SMD stuff on my own & early employment. Today, I mostly swap parts, as most in-house techs do. At home I'll do some simple stuff with an iron. — Dan
Dan, no harm no foul. I totally understand what you are saying. all this is just a hobby for me so I try to stay up with all the new developments. Personally I love tubes and "big" components, that small stuff needs all kinds of small tools and meters ;-) expensive hobby. — oldturkey03
Gentlemen, thank you so much for your help. I've tried to find the same exact inductor with no luck. What are my options (if any)? Thank you. — Mohammed Afnan

oldturkey03 @oldturkey03 評価: 785.4千 1.1千 895 2.3千 · Answer 1 · 2013-09-11T16:22:42-07:00

最も参考になった回答

oldturkey03 @oldturkey03

評価: 785.4千

1.1千

895

2.3千

投稿日: 2013年9月11日

オプション

Mohammed Afnan, that is reference designator L6995. It is a series D52LC-SM 33UH 20% 0.44A 0.455OHM fixed inductor. Check Jameco.com, Mouser.com or Digikey.com and others for availability.

このアンサーは役に立ちましたか？

はいいいえ

スコア 2

4 件のコメント:

Thank you oldturkey03 & Dan for taking the the time to look at the images. Where can i find this inductor 330? Or is there anyway i can bypass it? Or any workaround in order for us to get the laptop going? Thanks.

Mohammed Afnan さんによる2013年9月11日

You can not bypass this. it is a "critical" component. Try the above links or any other online electronics place. Depends on where you are located.

oldturkey03 さんによる2013年9月11日

Check on here http://uk.mouser.com/Passive-Components/... something like this should work or any of these. Just match the package size closely.

oldturkey03 さんによる2013年9月13日

Thank you both for your help. My friend had placed the order last night, and I'll let you know the results.

Mohammed Afnan さんによる2013年9月14日

コメントを追加