Today I finished the KSB2 adapter and installed it into my K2. It worked first time but was intermittent. I found the issue as I had omitted to solder the outer top pins of the twin three pin interconnects. That done everything seems ok and then........
No Apparent RF output. USB/LSB/CW Pressing TUNE produced a max of 0.8W. VOX would trip to transmit but the S meter showed no modulation. Coarse carrier balance adjustment worked but zero S meter readings was very wide (unlike earlier when it was a fine, narrow adjustment) All voltages looked slightly low but ball park on the KSB2 board except for U2 (the DAC) Pin5 which is ALC THR. This was sitting at 5.89v rather than 0.6 on both RX and TX. I have removed the KSB2 and full CW power output can now be achieved which is a relief. I will examine everything under a microscope again but has anyone any suggestions? I suspect ALC to be the culprit but how to investigate? Thanks Mark G4RUR -- If you are afraid you are living in the future. If you are sad you are living in the past. If you are content you are living in the now. ______________________________________________________________ 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
