[Elecraft] section II alignment pll problems
kf4pob at aol.com
kf4pob at aol.com
Fri Oct 10 12:26:33 EDT 2008
I have tried all tests and checks offered up by you good folks but none of them have cured my problem. I have even gone to a local ham buddy that has built one and we both could not find the cure. I have verified that all the parts are correct and in the right place. I have re-soldered all joints, those looking questionable or not. I also verified that the 12597.91 frequency displayed is in fact accurate.all voltages are correct, L31 is correct and capacitors c84 & c85 are correct. When checking the cathode voltages on d16 & d17 the voltage did come and go when hitting the band- and band + buttons. I noticed the voltage came and went on BOTH of the diodes simultaneously. Male?logic?kicked in and said is that right? If the two diodes are used to vary the frequencies to the display shouldn't they be activated one at a time, one with band+ and one with band-?"
Thanks in advance for your input.
73
Dan
af4lb
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