[1000mp] No rx on 15m
Rick Stealey
rstealey at hotmail.com
Fri Aug 3 18:00:40 EDT 2007
>my rig will not receive anything on 21, (nor on
>18 or 24.5). I
Most likely VCO #3 is out. You can confirm this by noticing if you can
receive 18 MHz on the sub receiver.
I have the same problem on mine and have not gotten it fixed yet.
The service manual has a procedure to check the vco voltage at a test point
on the "local" board. On mine I got correct voltage readings on the other 3
VCOs but #3 was pegging the voltmeter at 13 volts and did not change with
frequency.
If luck is with you, you just tweak the capacitor associated with that VCO
and it will snap back into oscillation. Mine didn't.
Rick K2XT
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