I am in the late stages of my build and have been testing moving of axis' and sorting out limit switches/homing etc.
I was having issues with the USB connection to the PC dropping out after a handful of moves so i installed a 5v 1a voltage regulator (7905CT) and attempted to connect via ethernet to fix the dropout issue.
At the same time i added a proper 24v PSU (had previously been running off a spare 12v unit for motor power) and 2x drv8825 drivers wired to spare GPIO pins (7 axis/4 head build)
When i first fired up the board with the new setup i had stable LEDs for VBB and 3.3v, no connection LEDs lit and seemingly no issues.
I plugged the ethernet cable into the PC and immediately all the magic smoke escaped from the component circled in red:
edit -cant post an image/link as a new user?
Fried part is the transistor looking thing immediately to the right of the voltage regulator connection, slightly up and left from the 1,2,3,4,3.3v,vbb LEDs when viewing the board with the mosfets to the top and USB to the right. Hope this is clear enough!
I immediately removed the ethernet cable and cut mains power to the PSU however the component circled is fubar,
Can somebody please provide me the part number (and maybe some alternatives, many overseas part numbers dont seem to work here in Australia, which is why i used a 7905 regulator)
If anybody has any theories as to why it fried itself and or possibly even my USB connection issues i'd be very appreciative. I really need to get this sorted asap.
Thanks in advance