[Elecraft] K3 Switched 12 Volts

[Hank Garretson]

For the last month or so, the switched 12VDC OUT phono jack on the back of
my K3 isn't switched. My P3 is plugged into this jack. As soon as I turn
the 12-volt power supply on, the P3 powers up even though the K3 is not on.
When I hit POWER on the K3 to power down the K3, the P3 stays on. To power
down the P3, I have to turn the 12-volt power supply off.

It used to work as advertized--switched. Ideas?

73,

Hank, W6SX