A2141 820-01700 no power

[hgoncalves]

Hi,

I have an A2141 820-01700 with no power.

It has 19V on bench PSU, but only 0.10A.

PP2V5_NAND_SSD0 is shorted, and I've lifted L9580 to be sure, and injected 2V there. However, even consumig about 1.2A, I can't see nothing hot in the thermal cam.

Because P2V5_SW1_TPS62180_SSD0 isen't shorted, I presume that the culprit can't be U9580.

Can you help?

 

[2informaticos]

Still short on L9580 with U9580 removed?
What is the exact ohm value?

 

[hgoncalves]

Hi,

Yes, still shorted on L9580 without U9580.

PP2V5_NAND_SSD0 has 0.4 ohm to ground

 

[2informaticos]

2.5v injected there should cause some heat under thermal camera.

 

[hgoncalves]

TKS.

With 2.6V I was able to find the culprit.

Thanks!