Fix Your Stuff Community Store

Released October 2008 / 2.4, 2.53, 2.66, 2.8 or 2.93 GHz Core 2 Duo Processor

376 Questions View all

Options

Is this a (broken) capacitor? Help with repairing liquid damaged MBP

Hello,

my wife spilled coffee over a late-2008 MBP which in turn rejected to work. (She actually did something similar recently to her 2-year old MBA, but its kinda working, currently replacing the Trackpad there).

Anyway, back to this MBP for which I thought why not repair it. I opened it and could spot a place which looked like old coffee ;) Cleaned it up, powered it on, did a few measures, and that one part doesnt look too good - theres also no voltage.

The MBPs charger cable is green when attached, it does charge the battery just fine, and the MBP does actually start when pressing the power button - the sound plays, fans start spinning, but thats it - screen stays dark, also external screen doesnt show anything.

I have attached 3 pics to show the bad part, and then I noticed on the pics that small other part doesnt look too well, too. Anybody know what they're for and how I can diagnose them correclty, and if I can/should replace them?

Thank you so much :)

Block Image

Block Image

Block Image

Answered! View the answer I have this problem too

Is this a good question?

Yes No
Score 0
Add a comment

1 Answer

Filter by:
Most Helpful Newest Oldest
Chosen Solution

Options

@twinkly_maladap the parts are F9800 which is a 2A 32V backlight fuse in a 0402 package. The other part is L9701 which is a IHLP2525CZ 22UH 2.5A inductor Something like this) and is also part of your LCD backlight circuitry. This would explain why your LCD does not display anything but does not explain while the external monitor does not work. Both parts can be replaced as long as you have soldered before. If unsure, you want to send it to someone who can help you with that.

Block Image

Was this answer helpful?

Yes No
Score 3

2 Comments:

Hi and thank you for your time!

I do have a bit of soldering experience, so I should be able to replace them.

Thank you. After your input I re-checked the resistance of both parts on the board, and both of them were 0 Ohm. Is that way of checking ok or invalid since its still soldered to other parts which could be responsible for the 0 Ohm? Was me checking the voltage was right or wrong?

How would you check/diagnose them?

Is there some easy way of checking why the displayport doesnt send any signals to external displays?

by

@twinkly_maladap you will have to replace the bad parts first. After that you will have to determine why it does not work. Right now it would all only be a guess. To check the inductor you should be using an inductance meter.

by

Add a comment

Add your answer

twinkly_maladap will be eternally grateful.
View Statistics:

Past 24 Hours: 1

Past 7 Days: 1

Past 30 Days: 1

All Time: 102