Analog pin and pwr supply
5V(3.3) FAIL
VPU(3.3) FAIL
3.3V(2.2) OK
ADC(2.2) OK
Should I be worried about this?
That looks like a problem, but maybe your USB supply is very low (?) - you could measure the voltage at L1.
Do you notice any shorts around VR3/4, C22/24, R18, or R10-16?
Argh. I just got around to looking at it again. I've got shorts at R10/R11, R12/R13, R14/R15, and R16/R17. I confirmed this with a multimeter. There was a lot of unhappy continuity beeping. I'm not very experienced with surface mount soldering, but I have done it before. Should I go ahead and try to fix the shorts myself or would you advise that I send it back?
Nevermind. I didn't look closely at the schematic there. I understand that those are all intentionally connected. Now I have to figure out what the problem really is. My L1 voltage is at 5V, so that is not the problem.
silly question time.
have you measured the outputs with a MM, it looks to me like you have just used the internal selftest.
It is allways possible the selftest is faulty.
but as i said it could just be a silly question.