Lenovo Yoga 7 14ARB7 - JYG71/JYG72 NM-E671 Rev: 1.0 Boardview and Schematic request

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Hello everybody,

I am asking for the boardview and schematic for a 2023 Lenovo Yoga 7

Manufacturer: Lenovo
Model Name: Yoga 7 14ARB7
Motherboard Part Number: JYG71 / JYG72 NM-E671

Couldn't find them online. If you know where to look, please tell me.
I know this was asked 2.5 years ago by user treewaver, but i'm asking because his post went unanswered.
I am trying to repair a friends laptop with a short on 3V.

Thank you all very much !

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Update:
when plugged in the small PU6210 ic was heating up. The connected PJ6210 (+3VL network) was shorted to Ground. This shortcircuit was caused by the UE1 SIO-chip (IT8227VG-256). I bought a preprogrammed replacement from china, which has the laptop working again.

I couldn't find boardviews or schematics for this model, so i used the boardview from the Lenovo Yoga 7-14IAL7 NM-E191, which is similar. There are other threads on this forum which discuss programming the chip.

[mon2]

LMAO - love Sal (Impractical Jokers).