Bob,
Since you had an ERR PTT indication in the midst of all this, unplug all
cables except the USB cable and the Power Cable. Connect ANT1 to a
dummy load.
Then open K3 Utility and open its Help file. Look for "Force a Firmware
Download" and follow those instructions (the instructions are also in
the manual).
After you are again up and running, plug each of your cables in one at a
time and recycle power after each cable. If you see an ERR PTT,
investigate that cable. It could be as simple as a closed paddle or key
contact, or a mic cable that has PTT stuck on. Or it could be more
complicated depending on what else you have in your station.
ERR PTT means that either a key or a mic PTT closure was detected when
the K3 was turned on.
73,
Don W3FPR
On 1/24/2019 3:03 PM, Bob DeHaney wrote:
Trouble started with no reception on 14 or 24 mHz. Reloaded configuration file
which got reception back, but had a continuous ERR PTT. Attempted a complete
firmware reload. K3 hung at MCU LD with all buttons inoperative. I then tried
the recovery procedure in the K3 Utility Help section. The K3 comes on without
backlight, and transmit blinking and MCU LD in the display. The K3 Utility
cannot open the port. I’m stuck. This K3 has all K3S upgrades including USB,
etc. I have also tried rebooting the computer with and without USB connected.
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