[Elecraft] K2

[David Holton]

Chasing some advice.

K2 problem,   " touchy "  power control pot.

Removed Front panel and carried out resistance checks of U1 and J1 as per
the manual.

 

U1 checks out OK.

 

J1 reads,

Pins 1 to 4 should read  > 1M  I read open circuit, no reading at all, on a
Fluke 87

Pin 5                     "               > 1M  I read 29.56K

Pin 6                     "               > 50K I read  2.26M

Pin 7                     "               > 1M  I read  open circuit
"

Pin 8                     "                   GND I read GND

Pin 9                     "               > 50K  I read open circuit
"

Pin 10                   "               > 50K  I read 5.3M 

Pin11                    "               > 50K  I read open circuit
"

Pin 12 to 14        "               > 50K  I read 6.96, 2.7, and 6.96MPins

Pin 15 to 20        "                All read in the middle of their
respective values and 20 is GND.

 

Any ideas please.

 

Regards

David 

VK4DH