Thanks again all. I can’t connect to my PC at all. No signs of shorts to the case internally but I can’t rule that out as the cause.?
I’ll order replacements for Q3 and Q5 and see how that goes. Wonder if it’s worth ordering some other components that might also need replacement. Hm… which ones?
I had to replace the 5V board on another QMX recently due to a scratchy 12V supply - the bad connection there was on the external PSU, and the simple board swap fixed it. Not quite so easy with the SMPSUs being integrated into the main board with V2. In that case I was able to connect to the terminal and see that the 5V board was dead.?
Steve MW0KST
