[Elecraft] K2 - S-Meter alignment/Bargraph segements

[Löbel]

Dear OM's,

 

thank you for reading this.

 

Yesterday I finished the control board, the front panel board and 

the first stage of the RF-board - ready for the alignment, part 1.

 

Yesterday I did all the steps from the manual, alignment part 1

sucessfully - even the S-Meter alignment and the bargraph current test.

 

Today I switched on the K2 again and the bargraphsegment number 2 was

lighting. So I decided to do the S-Meter alignemnt again.

 

And so the mistery began. First with "CAL S LO" by turning the VFO-knob

the bargraph segments hop from nr. 10 to nr. 7 and then to nr. 3 ....

Similiar behavior with "CAL S HI". 

 

I did the "GRPH BAR" - Test and only saw the first 3 segments on.

Then I tried again the S-Meter alignement but no segement visible any
more....

So back to the "GRPH BAR" - now not one segment is on....

 

I have to mention, that I didn't changed anything from yesterday

to today an the R1 was adjusted to 3,8 Volt as shown in the manual.

 

Has my K2 destroyed himself or what could be the reason for that

bad behavior? All other things in the alignment part 1 still are ok.

The RF-Gain control does not change anything.

 

I am really thankful for every help.

 

73 de Guenther / OE2LCM