I came accross the problem here:
As the link may not work in the future I quote the text here:
I have just
received confirmation from ICOM Canada that there is a bug in the
design of the IC-736 with respect to frequency generation. It
seems that although it seems to be a common problem, not all
IC-736's exhibit the problem. It seems that there is a
"floating" data/address line and at times it floats the
wrong direction, giving about 30HZ (maybe 32HZ?) difference in
LSB mode. The fix is to solder a 47K resistor between pins 17 and
10 on IC24 on the main board. (bottom of radio, near front). I
have not yet tried the fix, as I just got it today.
To see if you too have the problem, try the following test:
to post this message about 4 times so far with no apparent
success. Hopefully this one will make it....73's and hope that
I excercised the procedure
described above and indeed the frequency jumped of the 30 Hz, or
so. The remedy is very simple, read the text above.
I found 100K rezistor is sufficient to do the trick, at least in my case.
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