Since fixing my BFO range issue I started going through a full alignment. I roughly set the BFO for all the filters. I noticed my frequency display was off about 1500 Hz, so I re-set the 4MHz oscillator, then tried to run CAL PLL. The CAL PLL started, but never finished. It just sat right around 12.1MHz.
I went back and tried the "PLL Reference Oscillator Range Test", which had passed the first time I went through calibration. Now, it is "stuck" on 12.097MHz. What is strange is that it will jump briefly when I press Band+ and Band-, but it settles back to 12.097MHz. I put a volt meter on pin 1 of U6 on the RF board to check the control voltage. When I press Band- I can see the voltage briefly drop to near zero. When I press Band+ it jumps to 7.5V or so, then goes back to the original value. If I rotate the VFO knob I can see the PLL frequency and the control voltage vary over a range of about 5kHz on the VFO. It seems that the PLL is moving with the control voltage, but the Band+ and Band- keys during Cal FCTR don't seem to be doing what they should. Is it possible that I fouled up another part of the calibration that is causing this weird behavior? It sure feels like I'm doing something wrong, but I can't figure it out. I did a factory reset (hold 4,5,6 and power on), but I'm still seeing the same issue with the PLL. Any help will be greatly appreciated. Thanks and 73 Mike M. KU4QO ______________________________________________________________ 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
