MacBook Not Charging Or Powering On, But Adapter Works

[Sawtooth811]

Hi, I have the very first MacBook (1.83GHz, white). My brother tested it with his charger, which works fine for his MacBook, and he said it flashes a very dim green when plugged in, and the MacBook will not charge or turn on. Could it be a DC in-board issue? What could it be?

 

[BlueRevolution]

Could be any number of things. But yes, that's a possibility.

 

[Sawtooth811]

Hi, again. I think I've found the problem. It may be the battery connector and/or the logic board. I've tried this with a fully charged battery without a charger, and now it makes a high-pitched squeaking sound. I know exactly where it's coming from, too. I have the photos of the motherboard, and where the sound is coming from below. The problem is in the upper-right hand corner (Photo #1) and is highlighted red (Photo #2). What could it possibly be?