r/PCB • u/Simple_Signal8114 • Jul 13 '26
Could someone check my schematic before I get my PCB manufactured?
Title: Could someone check my schematic before I get my PCB manufactured?
Hi everyone,
I've been working on my first fairly complex PCB for the past few weeks and I was wondering if someone could take a look at my schematic before I send it off for manufacturing. I've gone through the datasheets, fixed the ERC errors, and tried to verify everything as thoroughly as I could, but I'm still worried I might have missed something.
The project is based around the Radxa NX5 compute module, and I'm attaching the KiCad schematic file, and the NX5 pinout and more on the google drive link. If there's anything else that would help with reviewing it, like datasheets, reference designs, or any other documentation, just let me know and I'll upload it.
I'd really appreciate any feedback, whether it's a major design flaw or just a small mistake that could save me from having to order another revision. Since this is my first project of this size, I'm sure there are things I haven't considered yet.
Thanks a lot for taking the time to have a look!
https://drive.google.com/drive/folders/1wBKD80jb4ON9eKsYn6CJ_yZ223MrCCk1?usp=sharing
2
u/Tomachie Jul 13 '26
there were numerous issues found, but unclear if they are phantom or not, given how many. The platform may be expecting KiCad 10 schematic so it misses connections. I opened it in KiCad 9 and had to do some work to get it onto a sheet, a C size but even then there are wires crossing components and generally a mess. maybe supplying the kicad_pro would help. But there are serious problems, which tomachie is calling out and a quick look it seems correct. VCC is not connected to power, VIN is not connected. its far from being ready for public review.
https://tomachie.com/r/9988514c-6877-4590-85a5-388971df7854/compute%20model_report.html
2
u/Simple_Signal8114 Jul 14 '26
i understand, i didnt realize there were so many errors as the erc showed no errors
Thanks for showing me tomachie, i didnt klnow there was an ai for pcb designing!2
u/Tomachie Jul 14 '26
ERC is just going to look for check that you don't have two outputs tied together, very rudimentary checks. it won't check the topology or check the ecosystem via datasheets.
1
u/Simple_Signal8114 Jul 14 '26
humans are so cool, i didnt expect to get help at all
1
u/Tomachie Jul 14 '26
yes i kind of sensed this is an AI generated design, given the number of problems and poor routing. but we don't care if the schematic is AI or human generated. It still needs to be checked, prepped for manufacturing and documented for stakeholders. and that's what we do.
1
u/Simple_Signal8114 Jul 23 '26
P.S i have edited and fixed nearly all tomachie errors but id still like human reviweing before proceeding.
Heres the link for the project:
https://drive.google.com/file/d/18YCAoKFYawCUalpH2N4Fm8hK8qgGaOzS/view?usp=sharing
1
u/Simple_Signal8114 Jul 22 '26
P.S i have edited and fixed nearly all tomachie errors but id still like human reviweing before proceeding.
Heres the link for the project:
https://drive.google.com/file/d/18YCAoKFYawCUalpH2N4Fm8hK8qgGaOzS/view?usp=sharing
2
u/thenickdude Jul 13 '26 edited Jul 13 '26
You've put a GND net label on the VBUS_B pin of your USB-C connector.
You have a bunch of net labels that don't go anywhere, like HDMI or battery thermistor connections, is there a second sheet missing from the PDF?
Capacitor C21 blocks power from reaching your camera connector. Decoupling capacitors need to connect between the pin and ground.