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820-00840-A Not powering on, voltage fluctuates.
Hello! I have an 820-00840-A that does not power on. The amp meter reads 20v but the amps loop from .00a to .50a. I'm not sure of the history of this motherboard but it does look like some rework was done around u7000. PPBUS_G3H: Starts at 13.09V and holds for about 5 seconds then jumps around...- Epoch
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- Forum: Macbook Logic Board Repair Questions