[Elecraft] K3 TX calibration fails after KXV3B and SYN3A upgrade

Sun Aug 16 14:41:07 EDT 2015

Wayne and David,
     The service is what is so classy about Elecraft.  Even if the radios
were not at the top of the pile such service would make one think of
sticking with Elecraft but of course the Sherwood tests tell us Elecraft is
amongst the very best.

      Good going Wayne!

                   73 Doug EI2CN   

-----Original Message-----
From: Elecraft [mailto:elecraft-bounces at mailman.qth.net] On Behalf Of Wayne
Burdick
Sent: 16 August 2015 18:37
To: Dave G3WGN M6O
Cc: elecraft at mailman.qth.net
Subject: Re: [Elecraft] K3 TX calibration fails after KXV3B and SYN3A
upgrade

David,

The KXV3B itself should have nothing to do with this unless it is damaged or
installed incorrectly. Also, many K3 users have this same hardware setup
along with rev. 5.33 firmware. So I suspect a firmware configuration issue.
Make sure you're not in TX TEST mode; have crystal filters configured
correctly; have the SUB IN board installed correctly (if applicable); TUN
PWR set to NOR; TX ALC ON; 2-TONE OFF; TX INH OFF. Also try removing the sub
RX (if applicable) and reinstalling the bypass jumper for the sub-IN module.
Get it down to the simplest configuration possible.

Please send all of the info to k3support and they'll contact you on Monday.

73,
Wayne
N6KR

On Aug 16, 2015, at 11:16 AM, Dave G3WGN M6O <david at aslinvc.com> wrote:

> Mike (and all who have sent replies on and off reflector) - thank you.
> I should have been more precise in my note.  The firmware I'm using:
> 
> MCU 05.33
> FPF 01.23
> DSP 02.86
> 
> Utility 1.15.6.29
> 
> Since the original posting I have reloaded the utility and all firmware.
No change - still no RF out and calibration fails with 0Watts message.
Synths check out OK and KXV3B is enabled.
> MCU 05.33 was released Friday so is a potential source of the issue.  I
could not find a way to roll back to an earlier MCU release to check that
out.
> 73, David G3WGN
> 
> 
> From: Mike Harris-9 [via Elecraft]
[mailto:ml-node+s365791n7606351h52 at n2.nabble.com]
> Sent: 16 August 2015 17:24
> To: David Aslin G3WGN <david at aslinvc.com>
> Subject: Re: K3 TX calibration fails after KXV3B and SYN3A upgrade
> 
> Make sure you have the latest version of the K3 Utility installed.
> 
> It is version 1.15.6.29
> 
> I had an RX gain cal issue when I installed the new synths and the KXV3B
> which was resolved with the latest Utility. Apparently there have been
> some timing changes.
> 
> Regards,
> 
> Mike VP8NO
> 
> On 16/08/2015 12:25, Doug Turnbull wrote:
> 
>> 
>> David,
>>     I had a similar problem here with a friend's K3 (I have two K3(s)
with
>> second receivers installed and had no problem prior to doing this
>> synthesizer board swap.)    We solved the failure to TX calibrate by
>> reloading the K3 Utility - the same one which worked fine previously.
>> Reloading the utility is an easy thing to try.
>> 
>>                     73 Doug EI2CN
>> -----Original Message-----
>> From: Elecraft [mailto:[hidden
email]</user/SendEmail.jtp?type=node&node=7606351&i=0>] On Behalf Of Dave
>> G3WGN M6O
>> Sent: 16 August 2015 10:39
>> To: [hidden email]</user/SendEmail.jtp?type=node&node=7606351&i=1>
>> Subject: [Elecraft] K3 TX calibration fails after KXV3B and SYN3A upgrade
>> 
>> I'm hoping there is a quick fix for this (some fat-fingering or brain
fade
>> on
>> my part is entirely possible) as the K3 in question is one of four
heading
>> to E6GG next month.
>> Yesterday I upgraded S/N 4474 with KXV3B and 2 x SYN3As and while the
panels
>> were off, also did the 12V DC Out mod and gold connector replacement mod.
I
>> have a full ESD bench and wore a wrist strap at all times.
>> After careful reassembly and TMP cable checks, I was able to update to
>> latest firmware and enable synths and KXV3B.  But TX Calibration failed
with
>> Calibration power settled at "   0W; " message.
>> I have tried the following remedies:
>> Panels off and examined all boards for correct seating.
>> Examined all TMP cables for correct seating.
>> Replaced panels.
>> Re-attempted Calibration - same error.
>> Re-flashed the firmware load.  Load successful.
>> Re-attempted Calibration - same error.
>> Performed EE INIT
>> Loaded a known-good prior configuration (from March 2015 well before the
>> upgrade)
>> Re-attempted Calibration - same error.
>> 
>> Any suggestions for next steps gratefully received!
>> 73
>> David G3WGN WJ6O
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