Hello,
I just destroyed my Jetson Nano 2GB board by connecting a USB-PD power adapter set to output 20 V to it (yeah, don’t ask how I managed to do it, I just did it).
I notice that either the U7 or U8 IC is getting very hot, but I have no idea what’s its part number.
Therefore, I’m looking for schematics so that I could buy a new one and try to replace it.
Thanks
Schematic is not released yet. U7 and U8 are NC7SZ38P5X.
Thank you so very much for replying!
The information checks out for U7: the datasheet indicates a Z38 marking for the SC-88A packaging, and that’s indeed what I see. I’ll try to procure one piece of it to replace it on my board.
However, U8 has a different marking (looks like VN followed by an equal sign with a third dash on top, i.e. something like ||| rotated 90º). The datasheet does not list this as a possible marking. Can you confirm?
Still, I was expecting this to be e.g. a voltage regulator or SMPS IC. I tested the 3.3V rail and it’s at 0.1 V. Point being that I’m not sure U7 could be sole issue here – only way I could think it is would be if its output controls the enable pin of a voltage regulator downstream.
Thus, I’d like to ask whether there is a plan to release these schematics soon, seeing as fixing a board without a schematic is very difficult. Failing that, would you be able to supply the schematics to me alone, prior to the general public release? I’ll sign an NDA, whatever you need. I just want my board back, I had just received it yesterday ):
Please refer to schematic of P3449 in DLC (https://developer.nvidia.com/jetson-nano-carrier-board-design-files), Q50 & Q51 in it are same to that.
If can’t locate the issue, you can run RMA process for it.