[Elecraft] odd k2 problem
Vic Rosenthal
[email protected]
Fri Jul 5 12:56:00 2002
Phil Wheeler wrote:
>
> Since all elements are 100K, would it matter? I'm thinking a defective U2 or
> a solder bridge somewhere -- though maybe an open element in RP1 could do it,
> too.
Pin 1 of RP1 is connected to one side of ALL of the resistors in RP1. It goes
to VCC. Each switch pulls the other side of a resistor low when it's pushed.
If it's backwards, then pin 1 just goes to where pin 10 should be....the
rate/lock button! This would cause ALL the buttons to act is if they are pushed
when the rate/lock button is pushed.
Vic K2VCO