Hi
The owner replaced an NVME stick since then the laptop not powering on.
Probably he did not disconnect the battery but i don't know for sure.
Main power rail is present with 20v but not other power is present.
When looking with thermal cam i saw the 2N = chip and some chip under the nvme is getting warm.
upon removal of the "other" chip. the 2N (RT8249CGQW) chip is not getting warm any more.
the 2N have power entering its VIN pin 12 20V and its LDO3 pin3 is outputting 3.3v.
but both enable pins voltages are not present. EN2 100k ohm, EN1 10k ohm
attached a schematic that i found online i think it is only similar not exactly the one.
Can you please help me inspect it ?
The owner replaced an NVME stick since then the laptop not powering on.
Probably he did not disconnect the battery but i don't know for sure.
Main power rail is present with 20v but not other power is present.
When looking with thermal cam i saw the 2N = chip and some chip under the nvme is getting warm.
upon removal of the "other" chip. the 2N (RT8249CGQW) chip is not getting warm any more.
the 2N have power entering its VIN pin 12 20V and its LDO3 pin3 is outputting 3.3v.
but both enable pins voltages are not present. EN2 100k ohm, EN1 10k ohm
attached a schematic that i found online i think it is only similar not exactly the one.
Can you please help me inspect it ?
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