[Elecraft] P3 problem

[Don Wilhelm]

Dave,

What are you using to power the P3?  Try a good stiff power source - not 
a wall-wart.

If the power source cannot provide the current required at the voltage 
required, then you will still hear a relay click as the P3 tries to 
power up, but the current or voltage from the power source drops 
significantly.

If you are powering the P3 from the AUX DC jack on the K3, and you have 
an early K3, the current is limited to 0.5 amps before the resettable 
fuse opens and is barely enough for the P3, especially if it has the 
SVGA option.

73,
Don W3FPR

On 9/7/2019 8:23 PM, n1ix at n1ix.com wrote:
> I bought a used P3 from an estate. Unfortunately it doesn't power up.
> 
> I am sure that it has 12+ volts and that it is jumpered correctly.
> 
> I can hear the relay click when I press the power button.
> 
> Anything I may be overlooking? I have actually read and reread the manual.