A2141 820-01700 no power

hgoncalves

Active member
Hi,

I have an A2141 820-01700 with no power, and only 5V on ampmeter.

It had bit of water contact on the right side, and doesn't power on.

After a quick check, I notice that PPBUS_G3H was shorted, and there was a bit corrosion on U9580. After removing U9580 short on PPBUS_G3H is gone, and have 20V on ampmeter, and 0.27A, but still no power on.

P2V5_SW2_TPS62180_SSD0 (on L9581) has 0.001 on diode reading, but I don't know if it is because I've removed U9580.

Can you help?

I don't have any other A2141 board to replace U9580.

Can I use other mac board model to get this U9580?

TKS
 
Last edited:

hgoncalves

Active member
Hi,

Is there any way to be sure that it is a NAND and not some other component?

Can I inject 1V there?

If it is a NAND is it possible to know witch one it is, and replace it?
 
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