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, [email protected] 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.
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