I agree also. Try a different device on the cable, like a digital camera, or an iPOD, or a GPS, or......
73, Mike NF4L Don Wilhelm wrote: > Roger, > > I do not believe the transistors on the IO board should be very high on > the suspect list. It is rare to find a component failure unless it has > been subjected to some unusual stress - component degradation in 3 years > or less is highly unlikely, 20 to 40 years, maybe, but not 3. > May I suggest that the KUSB itself would have the highest probability of > failure, and your tests so far have not done anything to check it (other > than the checks from the computer device manager). The adapter could > have something as subtle as a broken wire in the cable. > Can you try another adapter, or better yet, try using a computer with a > real serial port. > > 73, > Don W3FPR > > Roger Dallimore wrote: > >> Many thanks for all suggestions privately and to this list. >> >> I can confirm that; >> >> Ports have been checked with K3 utility >> Checked correct port in device manager on PC >> Did not stop after upgrading software >> I am using KUSB with latest drivers since arrival of K3 #191 >> K3 is set at 38400 baud >> >> I'm going to examine the transistor on the IO board. Apparently the >> plastic transistors can degrade over time on older K3's and the voltage >> drops under load to the RS232. Thanks to K1WHS for this suggestion. >> >> 73 & HNY! >> >> Roger MW0IDX >> >> >> > ______________________________________________________________ > 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 > > ______________________________________________________________ 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
