Boards not working - don't know how to proceed. about c64-collection HOT 3 OPEN

Hi, that's a shame. I didn't create a pick-and-place file because I always solder everything by hand.
The error can actually only be in the CH224K. Perhaps the bottom of the IC has not been soldered, this is absolutely necessary. Maybe your power adapter is actually not compatible with the chip, but I haven't experienced such problems yet. If necessary, you should try a different adapter to at least rule out this cause.

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Hi. Once again, thank you for your response. I finally had a chance to test with the Ugreen 100Watt PD PSU, and ... it works fine. So now the question is; why would an Apple MBP PSU not support 12 volts but does 5 volts, 19 volts and 24 volts ...
And why would a laptop not provide 12 volts by PD protocol...
Anyway, all boards produce 12 and 5 perfectly.

The plan goes to the bin, but at least it wasn't money wasted ;)

p.s. Sorry for assuming PD power input would also mean PD power output on a laptop. Guess I need to adjust my expectations ;)
I could do it with a boost converter, 5 to 12 volt, but the I would need more than the available 2.4 amps at 5 volt. ...

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USB-PD is not always a simple story: source, sink and the cable in between must work together.

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