Hello everyone
A client brought me this m2 SATA with a big short circuit, the first time I connected the SSD to the pc3000 this measured in the channel that I connected a voltage of 0,9V and a current of 0,21A.
Device
brand: Crucial
model: CT1000MX500SSD4
And after a while I can identify the power line with the trouble, and I believe the voltages regulator. Which I will describe below.
Thanks to FZABKAR who posted this web page,
https://www.ti.com/packaging/docs/partl ... sp#divline, that help me to identify the voltages regulator
IC 1: despite having the marks, I did not find the ic model
marking
AKJ
M13
844
IC2: LP2951-N from texas instruments, the voltage generated by this ic is the one that is short circuited
marking
51A
FL51
IC3 -- IC4 : TLV707
marking
HJ
My first test was to remove the protection diode, but short circuit persist.
After a while of testing, I remove ic2 the voltage don't drop keeps 5v and a consumption of 0,11A, but the short circuit persist, and I started to remove the capacitors. And after removing 10 or 12 caps the short circuit is still present, I don't think an IC is responsible. I don't have a fancy tester, like a keysight, that allows me to isolate the short circuit.
I don't think it's practical to remove component by component if anyone has any advice, I am very grateful.
My best Regards