[Yaesu] display offset

[Rob K6RB]

I have two FT-1000s - a D and a non-D. They are set up for SO2R. The D version's display agrees with an RF-sensing frequency counter and goes right to spotted frequencies with little or no "tweaking." The non-D rig appears to have a fixed offset of about 500 Hz. That is, when the display reads 7.002.50, it is actually transmitting and receiving on 7.003.00. This is true for every band, every mode. If I use spotting for this radio, I end up about 500 Hz off the spotted frequency. Not good! On WWV, when both radios are zero beat with the signal, the D reads 10,000,00 and the non-D reads 9999.45. I have replaced the master oscillator, and adjusted the new one dead on frequency, so it isn't the TCXO. I have both rigs set up identically, so it isn't some CW offset issue. It just seems as if the display has a fixed offset. Anyone have any ideas? Thanks in advance.

Rob K6RB