XBOX One S Power On and then Off Q9F2

FiXiNGA

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Hi,

I have a XBOX One S which is beeping, shortly white light and then goes off. I measured all mosfets and observed that the Q9F2 Drain side is deadly shorted.

By injecting 2 Amps nothing getting warm. I already pulled the two caps near to Q9F1 and Q9F2 but still shorted.

Do you know what this switch is supplying and where to measure now?
 

FiXiNGA

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Okay I have some news but not finished the console.

It was a failure of the mosfet Driver for MemIO. I measured the ground but did not know it before having the circuit diagrams.

So I swapped the mosfet driver and the memory now getting 1.5V

But now the console beeps, light is flashing, NO fan spinning and after 5sec a power off tone is played and console switches off.

So beep on, 5sec, beep off. I found some videos with the same issue but the guy has no fix.

Is someone here knowing how to get this fixed?
 

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