From: QRPLabs@groups.io [mailto:QRPLabs@groups.io] On Behalf Of PA3CRZ
Sent: Tuesday, July 16, 2019 10:35 AM
Subject: [QRPLabs] Help ! My U3S behaves badly.... #u3s
I decided to redo my U3S casing and wiring, because the last time it was a mess. But it worked !
Powersupply-wise, I now have two 7805's that supply 5V to the oscillator and the U3S respectively.
That's the only big change I made.....
Now, when I start up the U3S I get the splash screen, and then it seems to cycle very quickly through
all available menus, before it ends saying "Press right button".
When I do that, it just starts over cycling through the menus, before stopping and displaying the same message
again, And so on......
Did a factory reset using the button on the PCB, but the behavior stays the same.
Has anyone seen this before ?
Does anyone know what could be the problem ?
FYI, I used Pete's blog https://zl2ik.blogspot.com/2015/11/u3s-beacon-kit.html for inspiration on the powersupply.
I do not have the oven, so I'm only using two 7805's.
Any help would be enormously appreciated. I'm without WSPR now, and that makes me sad.....
Kind regards and 73,