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Re: Suspected faulty rotary encoder QMX Rev 2 80-20m kit build


 

Nino,
if you measure the voltage on the control board connector, at the point S on below to
ground on one of the connectors,?you should see:
No buttons pressed 3.3v
left button? pressed 2.0v
right button pressed 2.5v
right encoder pressed 2.8v
?
Connector, from top
o o o o
o S o o
?
If you don't get these voltages you likely have a grounding connection problem.
These buttons get their ground through the inner ground layer and need a fair amount of
heat and solder to be completed.
?
Let us know what you see.
Good luck,?
73
Bruce, KG8IW
?
?
?

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