Hello all, My KPA500 # 1090 (driven by K3 & followed by KAT500) basically functions as advertised at 12-35w input level. BUT the following occurs randomly (no matter band \ mode \ power) with a tendency to repeat more often, from day to day :
1. At some point in the operating cycle (minutes from "ON" - can be 3 or 43) the amp will not key when triggered by my K3. There is a "double click" sound similar to a relay bounce. Usually On the next PTT from the K3 it will key as before, and perhaps a few cycles later this might happen again. 2. Either starting the amp from cold or after some idle time the LCD characters dim, become unreadable and finally disappear. The LCD remains lit but empty. This might or might not fix itself when powering the amp off and on again. At the time of writing this post it is the steady state. 3. The keying issue in "1" above isn't necessarily linked to issue "2", but sometimes both occur at the same time. 4. So far even with empty LCD the amp is amplifying; RF & SWR LEDs indicate expected readings. Any ideas please? TIA & 73 Isaac, 4Z1TL --- This email has been checked for viruses by Avast antivirus software. https://www.avast.com/antivirus ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
