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Old Feb 25, 2010, 08:21 PM   #1
poobah
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20" iMac G5 iSight logic board help needed

Hi all!

I've got a 20" 2.1GHz iMac G5 iSight on my bench that doesn't power up.
I've tracked down the issue to a grenaded IC on the logic board.
The IC is an 8 pin SOIC chip, to the right of the power connector, just above the ALS connector. It is labeled UE300.

If you know what this guy is, can send me a good picture of one, or can provide me with the numbers from the IC, I can get this mac back to life.

Thanks!
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Old Feb 25, 2010, 08:32 PM   #2
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Old Feb 25, 2010, 08:51 PM   #3
poobah
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UE300 is the silkscreen designator, not the chip number.

Judging by the location, adjacent traces and damage, I'd guess switching voltage regulator, but it could be anything.
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Old Feb 25, 2010, 11:18 PM   #4
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If you go to apple and they tell you that you have to make a 500-700$ Logic board replacement better trash it! I had an issue with my iMac which needed one, it broke my heart, almost payed that, but if you think about it, even a Mac Mini which is cheaper than the repair cost is faster
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