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Hi!
On my iMac mid 2011 the inductance called L9000 exploded.
What are its specifications?
Thanks you very much!
These are some photos, unfortunately they are blurred. At the moment I can not post better quality photos most because I have closed the Mac.
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@barba997 I am admittedly confused by this. As Recee properly identified the ferrite bead, all you have left is to properly desolder the old component. Then measure the distance from solder pad to pad which will give you the length of the component. Compare your measurement with component size charts like these ones:
That should solve your mystery
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This is a 250 ohm ferrite bead. You can search for these on websites like Farnell, Mouser and Digikey.
SM just means surface mount, usually it will have a case size there (0402, 0603, etc), so you will have to have a look and see which case style/size looks right. Send across a picture of the actual board if you can, and I'll try identify the size you need.
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You can view the images in my answer below.
Looks bigger than an 0805, maybe a 2220 (not sure myself, I stick to MacBooks). @oldturkey03 @mayer @danj , any ideas? Doesn't show the amps for the component as well, which is strange.
@reecee this should be the attack to give power to the display if it can be helpful
Yes, it should show more details for the component though, which is weird. Hopefully one of the guys I quoted will know which component it is. Usually I'm working on 0201-0603 components at largest, so I am not too sure. Maybe check the rest of the logic board to see if there are any similar components to that, then see if it says the size for that component in the schematic?
The next component, called the C9020, it would seem the same.
PS: sorry for my bad english but I'm italian.
This is for a iMac A1312. I attempted to switch a logic board on the 27inch display from a LG LM270Q1 (SD) (E3) to a LG 270WQ1 (SD) (C2) and I believe I didn't have the ribbon cables settled correctly and Blew the L9000 inductor. I saw a spark then had to unplug and plug the computer back in to get the startup tone.
I am looking for a L9000 replacement. I believe it is 3mm in length after measuring with merely a ruler. It looks similar to C9020 and possibly C8401, and C9005 next to it as shown in my photos.
Does this mean I need a 1210 or 1206 SMD?
Better Picture
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Me too! I've plugged in that connector over 50 times. Yesterday I accidently plugged the connector the wrong side, it should not be possible but it is! When power the iMac a spark appeared on L9000. I blew it. Had a spare board and did the very same thing except (didn'tknow that it was possible to insert it backwards). I let it stay on and the L900 started to smoke and melt. The iMac works but I have no longer internal display, only external via the dual ports.
L9000 is 0805 with a height of approx 1.4mm (0.055").
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Thanks oldturkey. I appreciate the info.
I desoldered the blown 0805. It was quite difficult to remove. I first used my hot air station but it wouldn't come loose even with too much flux and pre soldered with leaded tin on high temperature so I used breaded copper wire and my soldering iron and it finally moved away overheated. On one side the pad is gone so I have to fix that.
I found out that shipping is 15USD. I can aswell try to find a donator logic board to take parts from and maybe get it even cheaper.
@stout Mouser.com does charge an arm and leg on shipping. Those ferrite beads are available at many places. I think I have even seen them on Ebay.
YEs. no fun to solder on some of those boards. Lots of flux and sometimes I even use a bottom heater to preheat the boards or use low melt solder. Anyhow, best of luck for your repair
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