Lenovo Yoga 500-14 B016XYHVG2 schematic

[croccoa94]

I guys,
I need a schematic of this laptop.
There is no power on the MB. I need to identify the chip PU4501, there is no mark on it and it is very hot. I think it' s a dc/dc converter.

Thanks in advance.

[mcplslg123]

Re: Lenovo Yoga 500-14 B016XYHVG2

There has to be some marking on the chip. See it carefully under magnifier. Verly likely to be richtek 8A=XX OR 4B=XX chip. Can you post a clear photo of the mb where the chip is located?? Board code??

[croccoa94]

Re: Lenovo Yoga 500-14 B016XYHVG2

I did what you suggested. The chip is a TI TPS51275C.
Thank you.