JUMA Amateur Radio Forum

Hi Adrian, Thank you for the assistance, yes you are absolutely correct, Q2 is gone. I checked as per your email and it is a short. I don't have a similar transistor to hand so will order a replacement and see how goes. The radio is working at the moment so hopefully no other damage has been done ...

The fault was traced to C14 on the Control DDS Board which had developed a short. After replacing it the radio turns on straight away without pressing the power button, also cannot switch it off with the power button any more. Could it be that Q1 and/or Q2 have gone faulty as well? How to check ...

Good evening, My TRX2 has been sitting on the shelf for some time, I finally picked it up with a view to update the software. I switched it on and everything was working fine, I was enjoying listening to 20m band. Next day I switched it back on but the fuse in the Juma blew. I replaced the fuse ...

Hello,

I have a TRX2A that I purchased about 7 years ago and it is working great. I was wondering if it is worth doing a firmware upgrade? My Juma is still with the original firmware and I have not carried out any hardware or software modifications to it so any advice is appreciated.

73 Elia, M0ZHN