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

[David Aslin G3WGN]

Thanks Doug.
Did the radio put out any RF when it failed to calibrate?  I'm getting none when I key the rig.
73, David G3WGN

-----Original Message-----
From: Doug Turnbull [mailto:turnbull at net1.ie] 
Sent: 16 August 2015 16:25
To: David Aslin G3WGN <david at aslinvc.com>; elecraft at mailman.qth.net
Subject: RE: [Elecraft] K3 TX calibration fails after KXV3B and SYN3A upgrade


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:elecraft-bounces at mailman.qth.net] On Behalf Of Dave G3WGN M6O
Sent: 16 August 2015 10:39
To: elecraft at mailman.qth.net
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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-SYN3A-upgrade-tp7606337.html
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