K2 Alignment Problems

[Julius Fazekas n2wn]

Hello all,

Have made it to the first Alignment on the K2 and am
not getting the appropriate 12.096 +/- reading. What I
am seeing is a reading in the 7 to 8 Mhz range
drifting up and down.

L31, as provided with my kit, is marked 10uH. I've
gone over the soldering and components several times
(which means I've probably missed something obvious).

Any suggestions?

73,
Julius
n2wn
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[Don Wilhelm-3]

Julius,

Check the thermistor board VERY carefully for solder bridges.  As a quick
sanity check on the health of the thermistor board, measure the voltage at
RF board U6 pin 4 - if is not close to 4 volts, you can be certian there is
a thermistor board problem.  Note: that does not fully check out the
thermistor board, but it is only a quick first check.

You can usually examine the back of the Thermistor Board by removing the
Control Board and Front panel.

73,
Don W3FPR

> -----Original Message-----
>
> Have made it to the first Alignment on the K2 and am
> not getting the appropriate 12.096 +/- reading. What I
> am seeing is a reading in the 7 to 8 Mhz range
> drifting up and down.
>
> L31, as provided with my kit, is marked 10uH. I've
> gone over the soldering and components several times
> (which means I've probably missed something obvious).
>
>

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