K2 40 tTr VCO lock

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K2 40 tTr VCO lock

K4TM
K2 #5266 aligned beautifully after I fixed C-6 which the Cheap 'N Dirty Signal Tracer found in about 2" flat.  I had it on the air and made about 100 cw contacts before adding some mods:  DSP, SSB, NB, 160 meters and 60 meters. I had a problem which was resolved but involved a master reset...so I started on a complete re-alignment today.
 
With the exception of the 40 meter band, the VCO alignment went "by the book" -  7000 and 7300 Mhz both read 7.92 volts  and it does not vary as I tune  between those frequencies.  I have checked the parts which were replaced in adding the mods noted above and re-heated C-71 through 75 and D-19 & 20.  Hooked it up for testing and it's still a rock solid 7.92 volts on 7000 through 7300.
 
L-30 is the correct inductor; T5 (wound by Mychael) and D21-26 all worked the first time around on the VCO alignment so I doubt there's a problem there.
 
Does anyone on the reflector have any idea where I should look next?  If so, I 'd appreciate it!
 
73,
Cary, K4TM
Lynchburg, VA
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RE: K2 40 tTr VCO lock

Don Wilhelm-3
Cary,

That means that your 40 meter band is not tuning at all.

I believe you have the K60XV option installed - enter the menu and set D19
to 'y' and re-check the voltage at the left end of R30 for all band edges.
With the K60XV installed, the usual extreme points can be found at 4000 kHz
and 5300 kHz - if you get these in range, the others will normall fall into
place properly provided the capacitors and varactors in the VFO range select
area are correct.

73,
Don W3FPR
  -----Original Message-----
  With the exception of the 40 meter band, the VCO alignment went "by the
book" -  7000 and 7300 Mhz both read 7.92 volts  and it does not vary as I
tune  between those frequencies.  I have checked the parts which were
replaced in adding the mods noted above and re-heated C-71 through 75 and
D-19 & 20.  Hooked it up for testing and it's still a rock solid 7.92 volts
on 7000 through 7300.

  L-30 is the correct inductor; T5 (wound by Mychael) and D21-26 all worked
the first time around on the VCO alignment so I doubt there's a problem
there.

  Does anyone on the reflector have any idea where I should look next?  If
so, I 'd appreciate it!

  73,
  Cary, K4TM
  Lynchburg, VA
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