Someone has sent me the schematic. Thank you to those
who responded. For those of you who might be curious,
there are basically 4 differences between the 81333
(Paragon) and 81460 (Omni V):
1. There is an additional 'filter' selection (6khz).
It's really no filter at all, just a pass through with
the necessary diode switching support and another pin
on connector 41 for it's selection.
2. C22, the trimmer cap for the 15.302.3 adjust
setting, is 1-5pf on the 81333 and 1-6 on the 81460.
Actually the 81333 says "15.301.6 Adjust" and the
81460 says "15.302.3 Adjust". Seems there's more PBT
range in that direction for the Omni V.
3. Relating to (2) above, the crystal, Y1 is 15.301 on
the 81333, but 15.302.3 on the 81460.
4. L17 has a 220pf capacitor on the Q10 side on the
81333. It has a 220pf cap on both sides on the 81460.
Q3, Q4, and Q7 have different designators between the
boards. On the 81333 they are MPS3893, and on the
81460 they are 2N4124. Since there are no part values
changes on any of these, I assume they are
interchangeable.
Anthony
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NT4X
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