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

Sun Aug 16 14:36:35 EDT 2015

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
> ______________________________________________________________
> Elecraft mailing list
> Home: http://mailman.qth.net/mailman/listinfo/elecraft
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:[hidden email]</user/SendEmail.jtp?type=node&node=7606351&i=2>
> 
> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html
> Message delivered to [hidden email]</user/SendEmail.jtp?type=node&node=7606351&i=3>
> 
> ________________________________
> If you reply to this email, your message will be added to the discussion below:
> http://elecraft.365791.n2.nabble.com/K3-TX-calibration-fails-after-KXV3B-and-SYN3A-upgrade-tp7606337p7606351.html
> To unsubscribe from K3 TX calibration fails after KXV3B and SYN3A upgrade, click here<http://elecraft.365791.n2.nabble.com/template/NamlServlet.jtp?macro=unsubscribe_by_code&node=7606337&code=ZGF2aWRAYXNsaW52Yy5jb218NzYwNjMzN3wxMDk4MzMzNTEz>.
> NAML<http://elecraft.365791.n2.nabble.com/template/NamlServlet.jtp?macro=macro_viewer&id=instant_html%21nabble%3Aemail.naml&base=nabble.naml.namespaces.BasicNamespace-nabble.view.web.template.NabbleNamespace-nabble.view.web.template.NodeNamespace&breadcrumbs=notify_subscribers%21nabble%3Aemail.naml-instant_emails%21nabble%3Aemail.naml-send_instant_email%21nabble%3Aemail.naml>
> 
> 
> 
> 
> --
> View this message in context: http://elecraft.365791.n2.nabble.com/K3-TX-calibration-fails-after-KXV3B-and-SYN3A-upgrade-tp7606337p7606354.html
> Sent from the Elecraft mailing list archive at Nabble.com.
> ______________________________________________________________
> Elecraft mailing list
> Home: http://mailman.qth.net/mailman/listinfo/elecraft
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:Elecraft at mailman.qth.net
> 
> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html
> Message delivered to n6kr at elecraft.com