Scott,
Perhaps the statement in the manual is a bit terse for the full meaning.
If the external counter and the internal counter read the same, then
there is no problem with the K2 internal counter.
With a frequency display significantly lower than 12090 kHz when the
(known good) counter probe is placed in TP3, then you certainly do have
a problem with the PLL reference oscillator.
Take a look at the schematic for RF Board sheet 1, and you will see the
components associated with the PLL Reference Oscillator in the upper
left corner. Check all those components for proper soldering, and check
all the diodes for correct orientation (the Parts Placement diagram is
handy for that). If that does not correct it, check all the components
for correct values.
The most likely problem is soldering, followed closely by a misplaced
component.
73,
Don W3FPR
Scott McDowell wrote:
Hi
In doing the Pll reference oscillator test on my k2 the frequency reading
should be
12090 +/- 30 khz according to the manual.
I am getting a reading of 2099.67, and an external frequency counter shows
the same.
The manual seems to say that as long as both the internal counter and the
external counter
have the same reading it is ok. Am I reading in something that isn't here?
It seems to me the two readings are a long way apart.
any info appreciated
Scott N5SM
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