Jeremy,
I did some "playing with numbers" in the VFO resonant circuit, and I am
coming to the conclusion that L30 and T5 are not connected together. If
my speculation is correct, you will find a break in the PC board or
something not soldered.
With the K2 upside-down, look at the bottom of L30. There is a row of 3
pins. The leftmost pin connects to the adjacent lead of T5.
Solder a wire across those two points as a test. Then check the
resistance to ground at the rightmost end of that row of 3 pins - it
should be zero.
Let me know what you find.
73,
Don W3FPR
On 2/2/2013 2:48 PM, JeremyJones wrote:
Hi Don,
I set C22 to midway.
PLL @ TP3 is 12099.12 - 12086.32.
T5 is a yellow core, wound with 15 turns red and 4 green. I had to bring it
down to 15 turns as recommended by Gary to get 8253.86khz @ TP1 when tuned
to 4000.10 for the VCO test. It was around 7694.39 with 16 turns.
L30 is the correct part, and all diodes have been checked to ensure the
correct part and placement.
Soldering has been checked.
Verified C67, C65, C64, C68, D13, Q18 for value and orientation.
Relays click when changing bands.
Still getting the following readings.
3500 = 8248.42
7000 = 12010.78
10100 = 14157.67
14000 = 16976.67
18068 = 18878.23
21000 = 15211.55
24890 = 16977.38
28000 = 18878.84
I am at a loss for what to look for next. Everything seems to check out, but
my readings are still off. Anyway I can try to isolate a faulty component?
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