Maybe someone else can step in and help identify this component, also I would inspect the full board to make sure there’s no shorts or excess solder where it shouldn’t be.I think this chip is not working
View attachment 27484
The two pins circled in red are giving the same voltage. Im pretty sure that the pin on the right should be giving 5 volts, but instead its giving the same 3.64v
Yeah that component is a bit trickier to identify because of the SMD marking. I couldn't find any spec sheets online for it.Oops i forgot to mention for him to check for shorts in the ones circled red and someone help identify this one here. It’s from his earlier post he made
It could be saturation, yeah. A full drain is absolutely worth a shotYeah that component is a bit trickier to identify because of the SMD marking. I couldn't find any spec sheets online for it.
Silly question for @void; have you tried disconnecting all batteries from PMS and turning it on and off half a dozen times?
At one point when I was building my first ashida it just stopped booting entirely. I was getting weird voltage readings across all my rails, I pulled the batteries out of it and power cycled it quite a few times. Put the batteries back in and it has worked without issue since then.
It's very rare but sometimes the circuits on a board need to be entirely discharged before the circuit behaves normally again.
Remove the batteries, and check your voltage from 5v/3.3v to GND. If you read anything higher than 0, cycle the power switch until you read 0.
Do you have continuity between the 5v pad and the B+ pad on the PMS? The 5v reg might be shortedI removed the batteries and power cycled till 3.3v was 0, for some reason 5v is about -0.41v though, and when the batteries where removed 5v was getting 4.14v and with the batteries back on 5v has the same voltage as the batteries.
I do have continuity between b+ and 5vDo you have continuity between the 5v pad and the B+ pad on the PMS? The 5v reg might be shorted