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

[Dave G3WGN M6O]

Thanks Udo.
Did you have RF out while the KXV3B was installed?  I get no RF either below or above the 12Watt PA changeover point setting on the PWR control.
73, David

From: Udo Langenohl - DK5YA [via Elecraft] [mailto:ml-node+s365791n7606338h49 at n2.nabble.com]
Sent: 16 August 2015 11:58
To: David Aslin G3WGN <david at aslinvc.com>
Subject: Re: [SPAM?] K3 TX calibration fails after KXV3B and SYN3A upgrade

David,

so did I in June, replaced KXV3-A by KXV3-B, TX calibration always
failed. Tried several times: back to KXV3-A, calibration works, again to
KXV3-B, calibration failed. Checked TMP's a hundred times, no fail for
sure. I didn't replace the SYN-boards.
I finally gave up after 1 week of constant dissapointment. Still running
old KXV3-A, have a KXV3-B for sale now.
Rig: K3 ser. 59xx, ESD workbench.

73 Udo, DK5YA

Am 16.08.2015 um 12:38 schrieb Dave G3WGN M6O:

> 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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