I have 2 RB750Gv2 boards that have both started to fail to boot. The power light turns on, the User light turns on, but then nothing happens. The reset button is non responsive during boot or after. Both boards give a very "meager" beep noise while booting, that is more like a clicking. I found some other repair guides here on the forum, but I couldn't find one that matches this board. Is this available somewhere?
Alternatively, is there anyway the onboard pads marked UART or E-JTAG are documented? I'm setup and familiar with doing JTAG or working on an embedded processor with a debugger, so I was trying to access the UART on one board, and I believe I've at least figured out the pinout (TX, RX, GND, 3.3V), but haven't had any success in getting an actual signal out, aside from a 200 mV peak to peak signal that has a 2.3-2.4V DC offset.