Good morning,
I have received and built my second QMX according to the current build guide, and cannot get it to power on. I built it for 12v operation and I tried starting at 7v and then up to 10v (painful past experience). I know the screen will be blank and off until the FW is loaded. The unit does not even power on enough to be recognized as a USB device. I tried reflowing all of my connections on the main board as well as the connections on the buck converter boards and I even reflowed the USB port.?
My first QMX had a bad day from the word go (fed with almost 14v by accident), and it will power on now after many repairs and much troubleshooting, but has no RX, I believe I may have fried one or more of the of the a/d converters on the main board but I do not know what part to replace them with, there are too many options. Maybe Hans can speak to that?
Thanks,
Devan KD8MST
