Thank you Dan! I greatly appreciate it!

Latest firmware file attached, Larry.

Hi All! I have an unusual situation and was wondering if someone could provide me with the latest firmware update, or alternate site for the updates, until I can resolve my inability to get to the Lab599 site. Currently I am unable to reach the web site.

Thank you in advance for your response.

L...

A small piece of double-sided sticky tape on the end of the encoder shaft. Oddly enough that was what was on mine when I got it so seems like a factory fit solution. Tape was not very sticky so used some regular office tape (doube-sided).

Hi Jo,

Mine did exactly the same last summer. Two diodes inside had fried upon inspection by the UK Lab599 workshop. They said it was most likely caused by a reverse polarity over-current/voltage. I knew this was not the case as I had used the radio that morning to test for a field day. When I went back to the radio, the fuse was popped and the radio dead. The only way I could get the radio back was to accept liability (even though I did NOTHING wrong) and pay about ?40 to get it fixed. They said the was a strong burnt smell when the radio casing was opened.

Not quite sure how, but the diodes which failed delivered a dead short over the power pins on the GX-12 connector. If this tests as a short then most likely you have fried diodes too.

Now I knew I was right and operated the radio correctly and over voltage/current was imposible from a battery that had not been disconnected and has connectors which cannot be reversed.

Very frustrating but it should be an easy fix for the authorised workshop.

I am still convinced it was a bad diode and it took its' mate with it.

Please let me know if you measure a dead short over the power pins.

Best 73 de George MM0JNL

From the voltmeter integrated in the TX-500 just before the fuse blown

14.4 v? I know the radio is rated at 15 volts maximum, but that is getting close. And where are you getting that voltage reading from?

I was tuning the transceiver to the working frequency.

I wasn't on the show. I only use CW mode so no data link plugged in.

The power supply was a little high in voltage (14.4V displayed on the TX) and I lowered it to 13.8V.

That's all.

开云体育

Hello the group.

I am very worried.

MyTX-500 turned itself off: 3A fuse burnt.

I replaced it but the fuse blows every time as soon as I connect the DC connector and without switching on the transceiver.

Has anyone ever had the problem?

Is this serious doctor ? 73

F5NFB - Jo.

开云体育

Updated no issues here.

Yes I also have updated firmware today and did a 6hr POTA with no issues to report.?

‘73
KO4DKN

updated without incident

On Sat, Feb 18, 2023 at 11:45 PM, David - KO4DKN wrote:

have any issues after updating Radio?

I didn't experience any problems after doing two SOTA activations.

73 Stephan

Pete,

Thanks for your response. ?Some good ideas there. ?I really like the idea of putting a little bit of dielectric grease in the recesses under the knobs as added security against moisture. ?Silicone or contact cement for the knobs also make sense to me. ?Maybe one day an enterprising operator will fashion some 3d printed knobs with set screws. ?I have to admit, though, that I love the tactile feel of the soft rubber ones. ?

On another note, you've got a terrific QRZ page. ?Great to see all that you are doing with QRP!

I'll let you know what I eventually do to keep the knobs on.

73,
Mike
AE0IH
Fort Collins, Colorado

Release notes vague. Only mentioned new battery pack support and "stability fixes"
--
Grace & peace,
Tim AF6TF

I had no problems after loading the new firmware