My QMX+ was working but when I powered it on this morning the display backlight is not on and the display shows a row of black blocks.? Does anyone have any thoughts on where to start troubleshooting.??
+V or?+12v has 12v, VCC has 5.1v, and VDD has 3.3v.?
I have had some issues with this unit.? The 78M33 failed.? When I tried to remove it the two small pads lifted.? I currently have the 3.3v being supplied by a small DROC 3.3v buck converter.? It was working well as of yesterday, I completed several FT8 and SSB QSOs.
