[Elecraft] K2-KAT2

[Hans Elfelt Bonnesen]

K2 - KAT2-

Every reading and function seems to be ok UNTIL page 17 – square five in

Bridge Null Adjustment (C55):

After placing the K2 in CALn  and exiting that setting by pressing MENU twice,

I’m ready to put the K2 in TUNE mode:

With the R1 and R2 set fully clockwise, and C55 positioned parallel

to the rear panel edge and pressing TUNE I get:

”000 followed briefly by HI-cur + atu. Thereafter HI + atu disappears and 000 stays on.

The adjustment of C55 does not affect the display at all.”

+++

A further DMM-check of voltage on pin1 of U4 gives 0,00 volts, and still reads 0,00 volts in tune mode. 

(not the reading in the range of  3 to 4 volts, as advised )

Please advise,

 

Hans, OZ5RB