Christophe,
K13 and K15 should have continuity between pins 2 and 3 also pins 8 and 9
You should also determine that there is an open between pins 3 and 4
also 7 and 8.
K14 should have continuity between pins 3 and 4 also 7 and 8. It should
b open between pins 2 and 3 also between pins 8 and
hello Don,
the measures find
3.600 => 18161
7.100 => 18163
10.120 => 15034
14.100 => 19014
18.110 => 23024
21.100 => 16185
24.930 => 20016
28.200 => 23285
I put a link to a video : https://we.tl/t-rFR61aZsYH
look what happens when I go from 20 to 30M with HI CUR power for a
fraction of a second,
hello Don,
continuity measurements from C71 ==> K14 PIN 3 & 4
K12 PIN 7 & 8; K15 PIN 2
for measuring band frequencies
80M, 30M, 20M; 17; 12 and 10M
on 3600, 10.140, 14.100, 18.100, 21.100, 28.100
will that be correct?
as I did on 40M
73 , Cris F8ACF Happy Easter
Le sam. 11 avr. 2020 à
Good evening to you as well Christophe,
C71 is properly 82pF, thanks for checking.
That likely means you have a relay problem with either K13, K14 or K15.
You may have a similar problem on bands other than 40m.
You should also check the VFO frequencies on each of the other bands.
Set the K2 to
good evening Don,
visually C71 blue capacitor "82J" so correct for registration, I think?
for C71 in conjunction with K13 pin 7 and K14 pin 4 on the diagram
I will give you the continuities on the relays tomorrow after having
started the K2 on 40M then having turned it off
thanks again for
Christophe,
I made a mistake on the value of C71. With no K60XV installed, the
proper value is 82pF (marked either '82' or 820').
73,
Don W3FPR
On 4/11/2020 12:38 PM, Christophe aufacf wrote:
hello don
I forgot to answer you no K60XV, no rework that I do not know this
option, I have the
Christophe,
OK, the first thing you need to do is check the value (and soldering) of
C71 - it should be 120pF (marked 121).
If that is correct, you need to check continuity through relays K13, K14
and K15. The schematic shows the relays in their not-set position. K13
and K15 must be
hello don
I forgot to answer you no K60XV, no rework that I do not know this
option, I have the NB option provided for purchase
for the parameter D19 = N
thank you in advance
73 , Cris F8ACF
Le sam. 11 avr. 2020 à 16:52, Don Wilhelm a écrit :
>
> Christophe,
>
> You have not yet answered 2
Christophe,
You have not yet answered 2 important questions which relate to your 40
meter operation.
1) Do you have the K60XV option installed (or do you have the Rework
Eliminators installed)?
2) What is your setting of the secondary menu D19 parameter?
The answers to those 2 questions
hello don
the frequency to find with CAL FACT 18.159 kHz
thank you in advance for your good advice
73 , Cris F8ACF
Le ven. 10 avr. 2020 à 21:21, Don Wilhelm a écrit :
>
> Christophe,
>
> Tune the K2 to 7100kHz
> Then plug the internal counter probe into TP1 and the P6 header on the
> Control
Christophe,
Tune the K2 to 7100kHz
Then plug the internal counter probe into TP1 and the P6 header on the
Control Board.
Enter the menu to CAL FCTR and hold EDIT
The frequency will be seen in the K2 display.
You could alternately use an external frequency counter to read the
frequency at
good evening Don,
I checked the values and solders of the capacitors mentioned
they are ok
on the other hand remind me of the procedure to check the frequency of
the VFO so as to find 12,015 KHZ pages in the assembly manual
Thanks again for your help
73 ,
cris F8ACF
Le ven. 10 avr. 2020 à
Christophe,
The most common cause of a 40 meter only failure in the K2 is an
incorrect setting of the D19 secondary menu parameter.
If you have the K60XV option installed, or if you installed the "Rework
Eliminators" when you built the K2, you must set D19 to "y".
If you do not have either
hello Don, hello everyone,
this morning I tested the K2 on my own.
the consumption (ampere) of K2 gave me part of the solution
the K2 alone in transmission consumes 0.5 amp on 40M then on the other
2 amp bands with a setting at 5Watts
so I have no broadcast on 40M only, we can hear the relays
Christophe,
I forgot to mention,
Before attempting to adjust the C1 null, first pre-set R26 and R27 to
43k ohms. Measure R26 from U5 pin 5 to ground and R27 at U5 pin 3 to
ground.
Then go through the nulling process followed by the power setting
process that I outlined in my prior email.
Christophe,
When doing the C1 adjustment, look for the lowest voltage measured at U5
pin 1 (TP4) -do not look at the SWR at that point, but look for the
lowest voltage on your DMM.
Once you have achieved that null, then you will adjust the R26 and R27
potentiometers for the power indication
Good morning all ,
Zero adjustment of SWR bridge (C1) page 48
as you see on the video , I set the K2 to 5Watts
https://we.tl/t-MOz5AX1v3l
I managed to adjust the SWR the K2 announces my power at 0.1 Watts !!
the consumption goes from 0.32 Amps in Rx, in Tune mode 0.5 amps
I should have 5
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