开云体育

ctrl + shift + ? for shortcuts
© 2025 开云体育

QMX fail.


 

I was just too arrogant! Turned the QMX on and all good.........I thought. Great 4 for 4, QCX+ 50W amp andQDX all built and working plus the QMX.
Too good to be true. Yes it turns on and all the menus work. Checked the diagnostic, yep, all good. Listened to the phones, hmmm, just background noise, no signal. Plugged in a signal gen -105dBm, nothing.
Checked the audio graph and all the red and yellow dots are at the top of the graph. *** !!
Some serious rewinding to do, BUT, my snips have gone missing which is odd because there's? only me and the XYL here! I would run the QDX but there's? a very large thunderstorm here so looks like beer o'clock!
Have a great weekend all.
73s



--
Phill EA5JHA


 

BTW during the build I found some very small solder balls hiding behind the pins on 3 smd ICs. I use eutectic solder which does seem to produce small balls. There again might just be my shaky hands. 73
--
Phill EA5JHA