[Elecraft] K2 #4595 No Joy

Ed epalmer at sirisonline.com
Tue Dec 21 10:07:31 EST 2004


Spent all of yesterday trying to figure out the problem with the low range value during the PLL reference oscillator range test. I removed the thermistor board as was suggested and checked the components for value and location and reheated any joints that looked even a little suspect. Still have a range of 8 Khz. 

I've checked everything in the PLL area and all components are of the correct value and where they are supposed to be. Following suit as with the thermistor board I reheated any joints that might be considered suspect.

I did find that R110 has a low value as compared to its color code. It is supposed to be 5.6K and it measures 3.7K. I don't think this low R110 value would affect the PLL reference oscillator range with it being in the variable bandwidth crystal filter circuitry.

I have to be missing something here. Ideas?

73, Ed N0EHQ


 


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