MacBook Pro 15 - help identifying component?

johnnyzero · **Joined:** Thu Aug 26, 2010 4:30 pm **Posts:** 3

I'm trying to troubleshoot an A1150 logic board that won't boot. After looking vey closely at the board, I noticed there's a surface-mount inductor (L2507) that's broken off.

Trouble is, I have no idea of the value of the inductor. Does anyone here have access to a schematic and/or parts list to help me identify it? Also, the schematic would indicate the function of the inductor and help me figure out if it's likely causing the no-boot situation.

Any help on this would me MUCH appreciated.

best,
JohnB

johnnyzero · **Joined:** Thu Aug 26, 2010 4:30 pm **Posts:** 3

Update: I managed to get ahold of a schematic, but as luck would have it the schematic doesn't indicate the actual value of L2507 in mH or µH.

It does list some sort of resistance rating (0.28 Ohms) and what I believe to be the package type (1206), but not the inductance value.

Does this mean that the inductance value doesn't matter? Maybe someone who knows more about electronics than I do can enlighten me on this.

Any help will be much appreciated. It would be a shame to have to trash this logic board due to a 25-cent inductor!

JohnB

johnnyzero · **Joined:** Thu Aug 26, 2010 4:30 pm **Posts:** 3

Bump...Can't anyone here help me out with this?

Thanks in advance,
JohnB

MacBook Pro 15 - help identifying component?

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